Release 2021.3.2

free tunnels

.dockerignore

@@ -0,0 +1 @@
+.git

.gitignore

@@ -1,20 +1,17 @@
-.GOPATH/
-bin/
-tmp/
-guide/public
-/.GOPATH
+/tmp
 /bin
 .idea
 .build
 .vscode
 \#*\#
 cscope.*
-cloudflared
-cloudflared.pkg
-cloudflared.exe
-cloudflared.msi
-cloudflared-x86-64*
-!cmd/cloudflared/
+/cloudflared
+/cloudflared.pkg
+/cloudflared.exe
+/cloudflared.msi
+/cloudflared-x86-64*
+/packaging
 .DS_Store
 *-session.log
 ssh_server_tests/.env
+/.cover

CHANGES.md

@@ -0,0 +1,92 @@
+**Experimental**: This is a new format for release notes. The format and availability is subject to change.
+
+## 2021.3.2
+
+### New Features
+
+- It is now possible to obtain more detailed information about the cloudflared connectors to Cloudflare Edge via
+  `cloudflared tunnel info <name/uuid>`. It is possible to sort the output as well as output in different formats,
+  such as: `cloudflared tunnel info --sort-by version --invert-sort --output json <name/uuid>`.
+  You can obtain more information via `cloudflared tunnel info --help`.
+
+### Bug Fixes
+
+- Don't look for configuration file in default paths when `--config FILE` flag is present after `tunnel` subcommand.
+- cloudflared access token command now functions correctly with the new token-per-app change from 2021.3.0.
+
+
+## 2021.3.0
+
+### New Features
+
+- [Cloudflare One Routing](https://developers.cloudflare.com/cloudflare-one/tutorials/warp-to-tunnel) specific commands
+  now show up in the `cloudflared tunnel route --help` output.
+- There is a new ingress type that allows cloudflared to proxy SOCKS5 as a bastion. You can use it with an ingress
+  rule by adding `service: socks-proxy`. Traffic is routed to any destination specified by the SOCKS5 packet but only
+  if allowed by a rule. In the following example we allow proxying to a certain CIDR but explicitly forbid one address
+  within it:
+```
+ingress:
+  - hostname: socks.example.com
+    service: socks-proxy
+    originRequest:
+      ipRules:
+        - prefix: 192.168.1.8/32
+          allow: false
+        - prefix: 192.168.1.0/24
+          ports: [80, 443]
+          allow: true
+```
+  
+
+### Improvements
+
+- Nested commands, such as `cloudflared tunnel run`, now consider CLI arguments even if they appear earlier on the
+  command. For instance, `cloudflared --config config.yaml tunnel run` will now behave the same as
+  `cloudflared tunnel --config config.yaml run`
+- Warnings are now shown in the output logs whenever cloudflared is running without the most recent version and
+  `no-autoupdate` is `true`.
+- Access tokens are now stored per Access App instead of per request path. This decreases the number of times that the
+  user is required to authenticate with an Access policy redundantly.
+
+### Bug Fixes
+
+- GitHub [PR #317](https://github.com/cloudflare/cloudflared/issues/317) was broken in 2021.2.5 and is now fixed again.
+
+## 2021.2.5
+
+### New Features
+
+- We introduce [Cloudflare One Routing](https://developers.cloudflare.com/cloudflare-one/tutorials/warp-to-tunnel) in
+  beta mode. Cloudflare customer can now connect users and private networks with RFC 1918 IP addresses via the
+  Cloudflare edge network. Users running Cloudflare WARP client in the same organization can connect to the services
+  made available by Argo Tunnel IP routes. Please share your feedback in the GitHub issue tracker.
+
+## 2021.2.4
+
+### Bug Fixes
+
+- Reverts the Improvement released in 2021.2.3 for CLI arguments as it introduced a regression where cloudflared failed
+  to read URLs in configuration files.
+- cloudflared now logs the reason for failed connections if the error is recoverable.
+
+## 2021.2.3
+
+### Backward Incompatible Changes
+
+- Removes db-connect. The Cloudflare Workers product will continue to support db-connect implementations with versions
+  of cloudflared that predate this release and include support for db-connect.
+
+### New Features
+
+- Introduces support for proxy configurations with websockets in arbitrary TCP connections (#318).
+
+### Improvements
+
+- (reverted) Nested command line argument handling.
+
+### Bug Fixes
+
+- The maximum number of upstream connections is now limited by default which should fix reported issues of cloudflared
+  exhausting CPU usage when faced with connectivity issues.
+

Dockerfile

@@ -1,7 +1,7 @@
 # use a builder image for building cloudflare
 ARG TARGET_GOOS
 ARG TARGET_GOARCH
-FROM golang:1.13.3 as builder
+FROM golang:1.15.7 as builder
 ENV GO111MODULE=on \
     CGO_ENABLED=0 \
     TARGET_GOOS=${TARGET_GOOS} \

Makefile

@@ -1,10 +1,19 @@
 VERSION       := $(shell git describe --tags --always --dirty="-dev" --match "[0-9][0-9][0-9][0-9].*.*")
-DATE          := $(shell date -u '+%Y-%m-%d-%H%M UTC')
-VERSION_FLAGS := -ldflags='-X "main.Version=$(VERSION)" -X "main.BuildTime=$(DATE)"'
 MSI_VERSION   := $(shell git tag -l --sort=v:refname | grep "w" | tail -1 | cut -c2-)
 #MSI_VERSION expects the format of the tag to be: (wX.X.X). Starts with the w character to not break cfsetup.
 #e.g. w3.0.1 or w4.2.10. It trims off the w character when creating the MSI.
 
+ifeq ($(FIPS), true)
+	GO_BUILD_TAGS := $(GO_BUILD_TAGS) fips
+endif
+
+ifneq ($(GO_BUILD_TAGS),)
+	GO_BUILD_TAGS := -tags $(GO_BUILD_TAGS)
+endif
+
+DATE          := $(shell date -u '+%Y-%m-%d-%H%M UTC')
+VERSION_FLAGS := -ldflags='-X "main.Version=$(VERSION)" -X "main.BuildTime=$(DATE)"'
+
 IMPORT_PATH   := github.com/cloudflare/cloudflared
 PACKAGE_DIR   := $(CURDIR)/packaging
 INSTALL_BINDIR := /usr/bin/
@@ -25,6 +34,8 @@ ifneq ($(GOARCH),)
     TARGET_ARCH ?= $(GOARCH)
 else ifeq ($(LOCAL_ARCH),x86_64)
     TARGET_ARCH ?= amd64
+else ifeq ($(LOCAL_ARCH),amd64)
+    TARGET_ARCH ?= amd64
 else ifeq ($(LOCAL_ARCH),i686)
     TARGET_ARCH ?= amd64
 else ifeq ($(shell echo $(LOCAL_ARCH) | head -c 5),armv8)
@@ -71,7 +82,17 @@ clean:
 
 .PHONY: cloudflared
 cloudflared: tunnel-deps
-	GOOS=$(TARGET_OS) GOARCH=$(TARGET_ARCH) go build -v -mod=vendor $(VERSION_FLAGS) $(IMPORT_PATH)/cmd/cloudflared
+ifeq ($(FIPS), true)
+	$(info Building cloudflared with go-fips)
+	-test -f fips/fips.go && mv fips/fips.go fips/fips.go.linux-amd64
+	mv fips/fips.go.linux-amd64 fips/fips.go
+endif
+
+	GOOS=$(TARGET_OS) GOARCH=$(TARGET_ARCH) go build -v -mod=vendor $(GO_BUILD_TAGS) $(VERSION_FLAGS) $(IMPORT_PATH)/cmd/cloudflared
+
+ifeq ($(FIPS), true)
+	mv fips/fips.go fips/fips.go.linux-amd64
+endif
 
 .PHONY: container
 container:
@@ -79,16 +100,23 @@ container:
 
 .PHONY: test
 test: vet
+ifndef CI
 	go test -v -mod=vendor -race $(VERSION_FLAGS) ./...
+else
+	@mkdir -p .cover
+	go test -v -mod=vendor -race $(VERSION_FLAGS) -coverprofile=".cover/c.out" ./...
+	go tool cover -html ".cover/c.out" -o .cover/all.html
+endif
 
 .PHONY: test-ssh-server
 test-ssh-server:
 	docker-compose -f ssh_server_tests/docker-compose.yml up
 
 define publish_package
+	chmod 664 cloudflared*.$(1); \
 	for HOST in $(CF_PKG_HOSTS); do \
 		ssh-keyscan -t rsa $$HOST >> ~/.ssh/known_hosts; \
-		scp -4 cloudflared*.$(1) cfsync@$$HOST:/state/cf-pkg/staging/$(2)/$(TARGET_PUBLIC_REPO)/cloudflared/; \
+		scp -p -4 cloudflared*.$(1) cfsync@$$HOST:/state/cf-pkg/staging/$(2)/$(TARGET_PUBLIC_REPO)/cloudflared/; \
 	done
 endef
 
@@ -104,7 +132,7 @@ define build_package
 	mkdir -p $(PACKAGE_DIR)
 	cp cloudflared $(PACKAGE_DIR)/cloudflared
 	cat cloudflared_man_template | sed -e 's/\$${VERSION}/$(VERSION)/; s/\$${DATE}/$(DATE)/' > $(PACKAGE_DIR)/cloudflared.1
-	fakeroot fpm -C $(PACKAGE_DIR) -s dir -t $(1) --$(1)-compression bzip2 \
+	fakeroot fpm -C $(PACKAGE_DIR) -s dir -t $(1) \
 		--description 'Cloudflare Argo tunnel daemon' \
 		--vendor 'Cloudflare' \
 		--license 'Cloudflare Service Agreement' \
@@ -220,9 +248,9 @@ tunnelrpc/tunnelrpc.capnp.go: tunnelrpc/tunnelrpc.capnp
 .PHONY: vet
 vet:
 	go vet -mod=vendor ./...
-	which go-sumtype  # go get github.com/BurntSushi/go-sumtype
+	which go-sumtype  # go get github.com/BurntSushi/go-sumtype (don't do this in build directory or this will cause vendor issues)
 	go-sumtype $$(go list -mod=vendor ./...)
 
 .PHONY: msi
 msi: cloudflared
-	go-msi make --msi cloudflared.msi --version $(MSI_VERSION)
+	go-msi make --msi cloudflared.msi --version $(MSI_VERSION)

README.md

@@ -1,9 +1,43 @@
 # Argo Tunnel client
 
-Contains the command-line client and its libraries for Argo Tunnel, a tunneling daemon that proxies any local webserver through the Cloudflare network.
+Contains the command-line client for Argo Tunnel, a tunneling daemon that proxies any local webserver through the Cloudflare network. Extensive documentation can be found in the [Argo Tunnel section](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps) of the Cloudflare Docs.
 
-## Getting started
+## Before you get started
 
-    go install github.com/cloudflare/cloudflared/cmd/cloudflared
+Before you use Argo Tunnel, you'll need to complete a few steps in the Cloudflare dashboard. The website you add to Cloudflare will be used to route traffic to your Tunnel.
 
-User documentation for Argo Tunnel can be found at https://developers.cloudflare.com/argo-tunnel/
+1. [Add a website to Cloudflare](https://support.cloudflare.com/hc/en-us/articles/201720164-Creating-a-Cloudflare-account-and-adding-a-website)
+2. [Change your domain nameservers to Cloudflare](https://support.cloudflare.com/hc/en-us/articles/205195708)
+
+## Installing `cloudflared`
+
+Downloads are available as standalone binaries, a Docker image, and Debian, RPM, and Homebrew packages. You can also find releases here on the `cloudflared` GitHub repository.
+
+* You can [install on macOS](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/installation#macos) via Homebrew or by downloading the [latest Darwin amd64 release](https://github.com/cloudflare/cloudflared/releases)
+* Binaries, Debian, and RPM packages for Linux [can be found here](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/installation#linux)
+* A Docker image of `cloudflared` is [available on DockerHub](https://hub.docker.com/r/cloudflare/cloudflared)
+* You can install on Windows machines with the [steps here](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/installation#windows)
+
+User documentation for Argo Tunnel can be found at https://developers.cloudflare.com/cloudflare-one/connections/connect-apps
+
+## Creating Tunnels and routing traffic
+
+Once installed, you can authenticate `cloudflared` into your Cloudflare account and begin creating Tunnels that serve traffic for hostnames in your account.
+
+* Create a Tunnel with [these instructions](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/create-tunnel)
+* Route traffic to that Tunnel with [DNS records in Cloudflare](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/routing-to-tunnel/dns) or with a [Cloudflare Load Balancer](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/routing-to-tunnel/lb)
+
+## TryCloudflare
+
+Want to test Argo Tunnel before adding a website to Cloudflare? You can do so with TryCloudflare using the documentation [available here](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/trycloudflare).
+
+## Deprecated versions
+
+Cloudflare currently supports all versions of `cloudflared`. Starting on March 20, 2021, Cloudflare will no longer support versions released prior to 2020.5.1.
+
+All features available in versions released prior to 2020.5.1 are available in current versions. Breaking changes unrelated to feature availability may be introduced that will impact versions released prior to 2020.5.1. You can read more about upgrading `cloudflared` in our [developer documentation](https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/installation#updating-cloudflared).
+
+| Version(s) | Deprecation status |
+|---|---|
+| 2020.5.1 and later | Supported |
+| Versions prior to 2020.5.1 | Will no longer be supported starting March 20, 2021 |

RELEASE_NOTES

@@ -1,3 +1,270 @@
+2021.3.2
+- 2021-03-23 TUN-4042: Capture cloudflared output to debug component tests
+- 2021-03-23 Publish changelog for 2021.3.2
+- 2021-03-16 TUN-4089: Address flakiness in component tests for termination
+- 2021-03-16 TUN-4060: Fix Go Vet warnings (new with go 1.16) where t.Fatalf is called from a test goroutine
+- 2021-03-16 TUN-4091: Use flaky decorator to rerun reconnect component tests when they fail
+- 2021-03-12 TUN-4081: Update log severities to use Zerolog's levels
+- 2021-03-16 TUN-4094: Don't read configuration file for access commands
+- 2021-03-15 TUN-3993: New `cloudflared tunnel info` to obtain details about the active connectors for a tunnel
+- 2021-03-17 TUN-3715: Apply input source to the correct context
+- 2021-03-17 AUTH-3394: Ensure scheme on token command
+- 2021-03-18 TUN-4096: Reduce tunnel not connected assertion backoff to address flaky termination tests
+- 2021-03-19 TUN-3998: Allow to cleanup the connections of a tunnel limited to a single client
+- 2021-02-04 TUN-3715: Only read config file once, right before invoking the command
+
+2021.3.1
+- 2021-03-11 TUN-4051: Add component-tests to test graceful shutdown
+- 2021-03-12 TUN-4052: Add component tests to assert service mode behavior
+
+2021.3.0
+- 2021-03-10 TUN-4075: Dedup test should not compare order of list
+- 2021-03-10 Revert "AUTH-3394: Creates a token per app instead of per path"
+- 2021-03-11 TUN-4066: Remove unnecessary chmod during package publish to CF_PKG_HOSTS
+- 2021-03-11 TUN-4066: Set permissions in build agent before 'scp'-ing to machine hosting package repo
+- 2021-03-11 TUN-4050: Add component tests to assert reconnect behavior
+- 2021-03-10 AUTH-3394: Creates a token per app instead of per path - with fix for free tunnels
+- 2021-03-15 Publish change log for 2021.3.0
+- 2021-03-01 Issue #285 - Makefile does not detect TARGET_ARCH correctly on FreeBSD  (#325)
+- 2021-03-01 TUN-3988: Log why it cannot check if origin cert exists
+- 2021-03-02 TUN-3995: Optional --features flag for tunnel run.
+- 2021-03-02 TUN-3994: Log client_id when running a named tunnel
+- 2021-03-04 TUN-4026: Fix regression where HTTP2 edge transport was no longer propagating control plane errors
+- 2021-03-05 TUN-4055: Skeleton for component tests
+- 2021-03-08 TUN-4047: Add cfsetup target to run component test
+- 2021-03-08 TUN-4016: Delegate decision to update for Worker service
+- 2021-03-02 TUN-3905: Cannot run go mod vendor in cloudflared due to fips
+- 2021-03-08 TUN-4063: Cleanup dependencies between packages.
+- 2021-03-09 Allow partial reads from a GorillaConn; add SetDeadline (from net.Conn) (#330)
+- 2021-03-09 TUN-4069: Fix regression on support for websocket over proxy
+- 2021-03-02 AUTH-3394: Creates a token per app instead of per path
+- 2021-03-01 TUN-4017: Add support for using cloudflared as a full socks proxy.
+- 2021-03-08 TUN-4062: Read component tests config from yaml file
+- 2021-03-08 TUN-4049: Add component tests to assert logging behavior when running from terminal
+- 2021-02-23 TUN-3963: Repoint urfave/cli/v2 library at patched branch at github.com/ipostelnik/cli/v2@fixed which correctly handles reading flags declared at multiple levels of subcommands.
+- 2021-02-25 TUN-3970: Route ip show has alias route ip list
+- 2021-02-26 TUN-3978: Unhide teamnet commands and improve their help
+- 2021-02-26 TUN-3983: Renew CA certs in cloudflared
+- 2021-02-28 TUN-3989: Check in with Updater service in more situations and convey messages to user
+- 2021-02-11 TUN-3819: Remove client-side check that deleted tunnels have no connections
+
+2021.2.5
+- 2021-02-23 Publish change notes for 2021.2.5
+- 2021-02-11 TUN-3838: ResponseWriter no longer reads and origin error tests
+- 2021-02-10 TUN-3895: Tests for socks stream handler
+- 2021-02-19 TUN-3939: Add logging that shows that Warp-routing is enabled
+- 2021-02-02 TUN-3817: Adds tests for websocket based streaming regression
+- 2021-02-04 TUN-3799: extended the Stream interface to take a logger and added debug logs for io.Copy errors
+- 2021-02-03 TUN-3855: Add ability to override target of 'access ssh' command to a different host for testing
+- 2021-02-04 TUN-3853: Respond with ws headers from the origin service rather than generating our own
+- 2021-02-08 TUN-3889: Move host header override logic to httpService
+- 2021-02-05 TUN-3868: Refactor singleTCPService and bridgeService to tcpOverWSService and rawTCPService
+- 2021-01-21 TUN-3753: Select http2 protocol when warp routing is enabled
+- 2021-01-26 TUN-3809: Allow routes ip show to output as JSON or YAML
+- 2021-01-11 TUN-3615: added support to  proxy tcp streams
+- 2021-01-17 TUN-3725: Warp-routing is independent of ingress
+- 2021-01-15 TUN-3764: Actively flush data for TCP streams
+- 2020-12-09 TUN-3617: Separate service from client, and implement different client for http vs. tcp origins
+
+2021.2.4
+- 2021-02-22 TUN-3948: Log error when retrying connection
+- 2021-02-23 TUN-3964: Revert "TUN-3922: Repoint urfave/cli/v2 library at patched branch at github.com/ipostelnik/cli/v2@fixed which correctly handles reading flags declared at multiple levels of subcommands."
+- 2021-02-23 Publish release notes for 2021.2.4
+
+2021.2.3
+- 2021-02-23 Publish release notes for 2021.2.3
+- 2021-02-10 TUN-3902: Add jitter to backoffhandler
+- 2021-02-11 TUN-3913: Help gives wrong exit code for autoupdate
+- 2021-02-12 Add max upstream connections dns-proxy option (#290)
+- 2021-02-16 TUN-3924: Removed db-connect command. Added a placeholder handler for this command that informs users that command is no longer supported.
+- 2021-02-12 TUN-3922: Repoint urfave/cli/v2 library at patched branch at github.com/ipostelnik/cli/v2@fixed which correctly handles reading flags declared at multiple levels of subcommands.
+- 2021-02-19 Added support for proxy (#318)
+- 2021-02-19 TUN-3945: Fix runApp signature for generic service
+- 2021-02-09 Update README.md
+- 2021-02-09 Update the TryCloudflare link
+
+2021.2.2
+- 2021-02-04 TUN-3864: Users can choose where credentials file is written after creating a tunnel
+- 2021-02-04 TUN-3869: Improve reliability of graceful shutdown.
+- 2021-02-07 TUN-3878: Do not supply -tags when none are specified
+- 2021-02-04 TUN-3635: Send event when unregistering tunnel for gracful shutdown so /ready endpoint reports down status befoe connections finish handling pending requests.
+- 2021-02-08 TUN-3890: Code coverage for cloudflared in CI
+- 2021-02-09 AUTH-3375 exchangeOrgToken deleted cookie fix
+- 2020-11-18 Update error message to use login command
+
+2021.2.1
+- 2021-02-04 TUN-3858: Do not suffix cloudflared version with -fips
+
+2021.2.0
+- 2021-02-01 TUN-3837: Remove automation_email from cloudflared status page test
+- 2021-02-03 TUN-3848: Use transport logger for h2mux
+- 2021-02-03 TUN-3854: cloudflared tunnel list flags to sort output
+- 2021-01-21 TUN-3195: Don't colorize console logs when stderr is not a terminal
+- 2021-01-20 Fixed connection error handling by removing duplicated errors, standardizing on non-pointer error types
+- 2021-01-20 TUN-3118: Changed graceful shutdown to immediately unregister tunnel from the edge, keep the connection open until the edge drops it or grace period expires
+- 2021-01-25 TUN-3165: Add reference to Argo Tunnel documentation in the help output
+- 2021-01-25 TUN-3806: Use a .dockerignore
+- 2021-01-21 TUN-3795: Use RFC-3339 style date format for logs, produce timestamp in UTC
+- 2021-01-26 TUN-3795: Removed errant test
+- 2021-01-25 TUN-3792: Handle graceful shutdown correctly when running as a windows service. Only expose one shutdown channel globally, which now triggers the graceful shutdown sequence across all modes. Removed separate handling of zero-duration grace period, instead it's checked only when we need to wait for exit.
+- 2021-01-27 TUN-3811: Better error reporting on http2 connection termination. Registration errors from control loop are now propagated out of the connection server code. Unified error handling between h2mux and http2 connections so we log and retry errors the same way, regardless of underlying transport.
+- 2021-01-28 TUN-3830: Use Go 1.15.7
+- 2021-01-28 TUN-3826: Use go-fips when building cloudflared for linux/amd64
+- 2021-01-19 TUN-3777: Fix /ready endpoint for classic tunnels
+- 2021-01-19 TUN-3773: Add back pprof endpoints
+
+2021.1.5
+- 2021-01-15 TUN-3594: Log ingress response at debug level
+- 2021-01-15 TUN-3765: Fix doubly nested log output by `logfile` option
+- 2021-01-16 TUN-3767: Tolerate logging errors
+- 2021-01-17 TUN-3768: Reuse file loggers
+- 2021-01-14 TUN-3738: Refactor observer to avoid potential of blocking on tunnel notifications
+- 2021-01-15 TUN-3766: Print flags defined at all levels of command hierarchy, not just locally defined flags for a command. This fixes output of overriden settings for  subcommand.
+
+2021.1.4
+- 2021-01-14 TUN-3759: Single file logging output should always append
+
+2021.1.3
+- 2021-01-14 TUN-3756: File logging output must consider the directory
+- 2021-01-14 TUN-3757: Fix legacy Uint flags that are incorrectly handled by ufarve library
+
+2021.1.2
+- 2021-01-13 TUN-3747: Fix logging in Windows
+
+2021.1.1
+- 2021-01-13 TUN-3744: Fix compilation error in windows service
+
+2021.1.0
+- 2021-01-11 TUN-3670: Update Teamnet API gateway prefixes
+- 2021-01-13 TUN-3738: Consume UI events even when UI is disabled
+- 2021-01-06 TUN-3722: Teamnet API paths include /network
+- 2021-01-05 TUN-3688: Subcommand for users to check which route an IP proxies through
+- 2021-01-08 TUN-3691: Edit Teamnet help text
+- 2020-12-30 TUN-3706: Quit if any origin service fails to start
+- 2020-12-31 TUN-3708: Better info message about system root certpool on Windows
+- 2020-12-21 TUN-3669: Teamnet commands to add/show Teamnet routes.
+- 2020-12-29 TUN-3689: Delete routes via cloudflared CLI
+- 2020-12-28 TUN-3471: Add structured log context to logs
+- 2020-12-15 TUN-3650: Remove unused awsuploader package
+- 2020-12-03 Update to add deprecated version note (#271)
+- 2020-12-02 TUN-3472: Set up rolling logger with zerolog and lumberjack
+- 2020-12-08 TUN-3607: Set up single-file logger with zerolog
+- 2020-12-03 Update to add deprecated version note (#271)
+- 2020-11-25 TUN-3470: Replace in-house logger calls with zerolog
+
+2020.12.0
+- 2020-12-04 TUN-3599: improved delete if credentials isnt found.
+- 2020-12-04 TUN-3612: Upgrade to Go 1.15.6
+- 2020-11-30 TUN-3593: /ready endpoint for k8s readiness. Move tunnel events out of UI package, into connection package.
+- 2020-11-27 TUN-3594: Log response status at debug level
+
+2020.11.11
+- 2020-11-20 TUN-3578: cloudflared tunnel route dns should allow wildcard subdomains
+- 2020-11-21 EDGEPLAT-2958 remove deb-compression, defaulting to gzip
+- 2020-11-23 TUN-3581: Tunnels can be run by name using only --credentials-file, no origin cert necessary.
+- 2020-11-15 TUN-3561: Unified logger configuration
+- 2020-11-08 AUTH-3221: Saves org token to disk and uses it to refresh the app token
+
+2020.11.10
+- 2020-11-20 TUN-3562: Fix panic when using bastion mode ingress rule
+- 2020-11-20 EDGEPLAT-2958 build cloudflared for Bullseye
+
+2020.11.9
+- 2020-11-18 TUN-3557: Detect SSE if content-type starts with text/event-stream
+- 2020-11-18 TUN-3559: Share response meta header with other packages
+- 2020-11-18 DEVTOOLS-7936: Remove redundant chgrp from publish
+- 2020-11-18 TUN-3558: cloudflared allows empty config files
+- 2020-11-18 TUN-3544: Upgrade to Go 1.15.5
+
+2020.11.8
+- 2020-11-17 TUN-3555: Single origin service should default to localhost:8080
+
+2020.11.7
+- 2020-11-13 TUN-3514: Stop setting --is-autoupdated flag after autoupdate because it can break named tunnel running in k8s
+- 2020-11-15 TUN-3548, TUN-3547: Bastion mode can be specified as a service, doesn't require URL.
+- 2020-11-16 TUN-3549: Use a separate handler for each websocket proxy
+
+2020.11.6
+- 2020-11-14 TUN-3546: Fix panic in tlsconfig.LoadOriginCA
+
+2020.11.5
+- 2020-11-12 TUN-3540: Better copy in ingress rules error messages
+- 2020-11-12 DEVTOOLS-7936: Set permissions on public packages
+- 2020-11-13 TUN-3543: ProxyAddress not using default in single-origin mode
+
+2020.11.4
+- 2020-11-11 TUN-3534: Specific error message when credentials file is a .pem not .json
+- 2020-11-02 TUN-3500: Integrate replace h2mux by http2 work with multiple origin support
+- 2020-11-09 TUN-3514: Transport logger write to UI when UI is enabled
+- 2020-10-30 TUN-3490: Make sure OriginClient implementation doesn't write after Proxy return
+- 2020-10-20 TUN-3403: Unit test for origin/proxy to test serving HTTP and Websocket
+- 2020-10-23 TUN-3480: Support SSE with http2 connection, and add SSE handler to hello-world server
+- 2020-10-27 TUN-3489: Add unit tests to cover proxy logic in connection package of cloudflared
+- 2020-10-16 TUN-3467: Serialize cf-cloudflared-response-meta during package initialization using jsoniter
+- 2020-10-14 TUN-3456: New protocol option auto to automatically select between http2 and h2mux
+- 2020-10-14 TUN-3458: Upgrade to http2 when available, fallback to h2mux when we reach max retries
+- 2020-10-08 TUN-3449: Use flag to select transport protocol implementation
+- 2020-10-08 TUN-3462: Refactor cloudflared to separate origin from connection
+- 2020-09-21 TUN-3406: Proxy websocket requests over Go http2
+- 2020-09-25 TUN-3420: Establish control plane and send RPC over control plane
+- 2020-09-11 TUN-3400: Use Go HTTP2 library as transport to connect with the edge
+
+2020.11.3
+- 2020-11-11 TUN-3533: Set config for single origin ingress
+
+2020.11.2
+
+
+2020.11.1
+- 2020-11-10 TUN-3527: More specific error for invalid YAML/JSON
+- 2020-11-06 Update README.md (#256)
+
+2020.11.0
+- 2020-11-04 TUN-3484: OriginService that responds with configured HTTP status
+- 2020-11-05 TUN-3505: Response body for status code origin returns EOF on Read
+- 2020-11-04 TUN-3503: Matching ingress rule should not take port into account
+- 2020-11-05 TUN-3506: OriginService needs to set request host and scheme for websocket requests
+- 2020-11-09 TUN-3516: Better error message when parsing invalid YAML config
+- 2020-11-09 TUN-3522: ingress validate checks that the config file exists
+- 2020-11-09 TUN-3524: Don't ignore errors from app-level action handler (#248)
+- 2020-11-09 TUN-3461: Show all origin services in the UI
+- 2020-10-30 TUN-3494: Proceed to create tunnel if at least one edge address can be resolved
+- 2020-10-30 TUN-3492: Refactor OriginService, shrink its interface
+- 2020-10-22 TUN-3478: Increase download timeout to 60s
+- 2020-10-15 TUN-2640: Users can configure per-origin config. Unify single-rule CLI flow with multi-rule config file code.
+
+2020.10.2
+- 2020-10-21 Release 2020.10.1
+- 2020-10-21 AUTH-3185 fixed indention error
+- 2020-10-19 TUN-3459: Make service install on linux use named tunnels
+
+2020.10.1
+- 2020-10-20 Split out typed config from legacy command-line switches; refactor ingress commands and fix tests
+- 2020-10-20 Move raw ingress rules to config package
+- 2020-10-21 TUN-3476: Fix conversion to string and int slice
+- 2020-10-12 TUN-3441:  Multiple-origin routing via ingress rules
+- 2020-10-15 TUN-3464: Newtype to wrap []ingress.Rule
+- 2020-10-15 TUN-3465: Use Go 1.15.3
+- 2020-10-15 TUN-3463: Let users run a named tunnel via config file setting
+- 2020-10-19 TUN-3475: Unify config file handling with typed config for new fields
+- 2020-10-19 TUN-3459: Make service install on linux use named tunnels
+- 2020-10-06 AUTH-3148 fixed cloudflared copy and match all the files in the checksum upload
+- 2020-10-06 TUN-3436, TUN-3437: Parse ingress from YAML, ensure last rule catches everything
+- 2020-10-06 TUN-3446: Use go 1.15.2 and add a step to build cloudflared in the dev Dockerfile
+- 2020-10-07 TUN-3439: 'tunnel validate' command to check ingress rules
+- 2020-10-07 TUN-3440: 'tunnel rule' command to test ingress rules
+- 2020-10-08 TUN-3451: Cloudflared tunnel ingress command
+- 2020-10-09 TUN-3452: Fix loading of flags from config file for tunnel run subcommand. This change also cleans up building of tunnel subcommand list, hides deprecated subcommands and improves help.
+- 2020-10-08 TUN-3438: move ingress into own package, read into TunnelConfig
+
+2020.10.0
+- 2020-10-02 AUTH-2993 cleaned up worker service tests
+- 2020-10-02 TUN-3443: Decode as v4api response on non-200 status
+- 2020-09-24 TRAFFIC-448: allow the user to specify the proxy address and port to bind to, falling back to 127.0.0.1 and random port if not specified
+- 2020-09-28 TUN-3427: Define a struct that only implements RegistrationServer in tunnelpogs
+- 2020-09-29 TUN-3430: Copy flags to configure proxy to run subcommand, print relevant tunnel flags in help
+- 2020-08-12 AUTH-2993 added workers updater logic
+
 2020.9.3
 - 2020-09-22 TRAFFIC-448: build cloudflare for junos and publish to s3
 - 2020-09-22 TUN-3410: Request the v1 Tunnelstore API

awsuploader/directory_upload_manager.go

@@ -1,106 +0,0 @@
-package awsuploader
-
-import (
-	"os"
-	"path/filepath"
-	"time"
-
-	"github.com/cloudflare/cloudflared/logger"
-)
-
-// DirectoryUploadManager is used to manage file uploads on an interval from a directory
-type DirectoryUploadManager struct {
-	logger        logger.Service
-	uploader      Uploader
-	rootDirectory string
-	sweepInterval time.Duration
-	ticker        *time.Ticker
-	shutdownC     chan struct{}
-	workQueue     chan string
-}
-
-// NewDirectoryUploadManager create a new DirectoryUploadManager
-// uploader is an Uploader to use as an actual uploading engine
-// directory is the directory to sweep for files to upload
-// sweepInterval is how often to iterate the directory and upload the files within
-func NewDirectoryUploadManager(logger logger.Service, uploader Uploader, directory string, sweepInterval time.Duration, shutdownC chan struct{}) *DirectoryUploadManager {
-	workerCount := 10
-	manager := &DirectoryUploadManager{
-		logger:        logger,
-		uploader:      uploader,
-		rootDirectory: directory,
-		sweepInterval: sweepInterval,
-		shutdownC:     shutdownC,
-		workQueue:     make(chan string, workerCount),
-	}
-
-	//start workers
-	for i := 0; i < workerCount; i++ {
-		go manager.worker()
-	}
-
-	return manager
-}
-
-// Upload a file using the uploader
-// This is useful for "out of band" uploads that need to be triggered immediately instead of waiting for the sweep
-func (m *DirectoryUploadManager) Upload(filepath string) error {
-	return m.uploader.Upload(filepath)
-}
-
-// Start the upload ticker to walk the directories
-func (m *DirectoryUploadManager) Start() {
-	m.ticker = time.NewTicker(m.sweepInterval)
-	go m.run()
-}
-
-func (m *DirectoryUploadManager) run() {
-	for {
-		select {
-		case <-m.shutdownC:
-			m.ticker.Stop()
-			return
-		case <-m.ticker.C:
-			m.sweep()
-		}
-	}
-}
-
-// sweep the directory and kick off uploads
-func (m *DirectoryUploadManager) sweep() {
-	filepath.Walk(m.rootDirectory, func(path string, info os.FileInfo, err error) error {
-		if err != nil || info.IsDir() {
-			return nil
-		}
-		//30 days ago
-		retentionTime := 30 * (time.Hour * 24)
-		checkTime := time.Now().Add(-time.Duration(retentionTime))
-
-		//delete the file it is stale
-		if info.ModTime().Before(checkTime) {
-			os.Remove(path)
-			return nil
-		}
-		//add the upload to the work queue
-		go func() {
-			m.workQueue <- path
-		}()
-		return nil
-	})
-}
-
-// worker handles upload requests
-func (m *DirectoryUploadManager) worker() {
-	for {
-		select {
-		case <-m.shutdownC:
-			return
-		case filepath := <-m.workQueue:
-			if err := m.Upload(filepath); err != nil {
-				m.logger.Errorf("Cannot upload file to s3 bucket: %s", err)
-			} else {
-				os.Remove(filepath)
-			}
-		}
-	}
-}

awsuploader/directory_upload_manager_test.go

@@ -1,137 +0,0 @@
-package awsuploader
-
-import (
-	"errors"
-	"io/ioutil"
-	"math/rand"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/cloudflare/cloudflared/logger"
-)
-
-type MockUploader struct {
-	shouldFail bool
-}
-
-func (m *MockUploader) Upload(filepath string) error {
-	if m.shouldFail {
-		return errors.New("upload set to fail")
-	}
-	return nil
-}
-
-func NewMockUploader(shouldFail bool) Uploader {
-	return &MockUploader{shouldFail: shouldFail}
-}
-
-func getDirectoryPath(t *testing.T) string {
-	dir, err := os.Getwd()
-	if err != nil {
-		t.Fatal("couldn't create the test directory!", err)
-	}
-	return filepath.Join(dir, "uploads")
-}
-
-func setupTestDirectory(t *testing.T) string {
-	path := getDirectoryPath(t)
-	os.RemoveAll(path)
-	time.Sleep(100 * time.Millisecond) //short way to wait for the OS to delete the folder
-	err := os.MkdirAll(path, os.ModePerm)
-	if err != nil {
-		t.Fatal("couldn't create the test directory!", err)
-	}
-	return path
-}
-
-func createUploadManager(t *testing.T, shouldFailUpload bool) *DirectoryUploadManager {
-	rootDirectory := setupTestDirectory(t)
-	uploader := NewMockUploader(shouldFailUpload)
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
-	shutdownC := make(chan struct{})
-	return NewDirectoryUploadManager(logger, uploader, rootDirectory, 1*time.Second, shutdownC)
-}
-
-func createFile(t *testing.T, fileName string) (*os.File, string) {
-	path := filepath.Join(getDirectoryPath(t), fileName)
-	f, err := os.Create(path)
-	if err != nil {
-		t.Fatal("upload to create file for sweep test", err)
-	}
-	return f, path
-}
-
-func TestUploadSuccess(t *testing.T) {
-	manager := createUploadManager(t, false)
-	path := filepath.Join(getDirectoryPath(t), "test_file")
-	if err := manager.Upload(path); err != nil {
-		t.Fatal("the upload request method failed", err)
-	}
-}
-
-func TestUploadFailure(t *testing.T) {
-	manager := createUploadManager(t, true)
-	path := filepath.Join(getDirectoryPath(t), "test_file")
-	if err := manager.Upload(path); err == nil {
-		t.Fatal("the upload request method should have failed and didn't", err)
-	}
-}
-
-func TestSweepSuccess(t *testing.T) {
-	manager := createUploadManager(t, false)
-	f, path := createFile(t, "test_file")
-	defer f.Close()
-
-	manager.Start()
-	time.Sleep(2 * time.Second)
-	if _, err := os.Stat(path); os.IsExist(err) {
-		//the file should have been deleted
-		t.Fatal("the manager failed to delete the file", err)
-	}
-}
-
-func TestSweepFailure(t *testing.T) {
-	manager := createUploadManager(t, true)
-	f, path := createFile(t, "test_file")
-	defer f.Close()
-
-	manager.Start()
-	time.Sleep(2 * time.Second)
-	_, serr := f.Stat()
-	if serr != nil {
-		//the file should still exist
-		os.Remove(path)
-		t.Fatal("the manager failed to delete the file", serr)
-	}
-}
-
-func TestHighLoad(t *testing.T) {
-	manager := createUploadManager(t, false)
-	for i := 0; i < 30; i++ {
-		f, _ := createFile(t, randomString(6))
-		defer f.Close()
-	}
-	manager.Start()
-	time.Sleep(4 * time.Second)
-
-	directory := getDirectoryPath(t)
-	files, err := ioutil.ReadDir(directory)
-	if err != nil || len(files) > 0 {
-		t.Fatalf("the manager failed to upload all the files: %s files left: %d", err, len(files))
-	}
-}
-
-// LowerCase [a-z]
-const randSet = "abcdefghijklmnopqrstuvwxyz"
-
-// String returns a string of length 'n' from a set of letters 'lset'
-func randomString(n int) string {
-	b := make([]byte, n)
-	lsetLen := len(randSet)
-	for i := range b {
-		b[i] = randSet[rand.Intn(lsetLen)]
-	}
-	return string(b)
-}

awsuploader/file_uploader.go

@@ -1,62 +0,0 @@
-package awsuploader
-
-import (
-	"context"
-	"os"
-
-	"github.com/aws/aws-sdk-go/aws"
-	"github.com/aws/aws-sdk-go/aws/credentials"
-	"github.com/aws/aws-sdk-go/aws/session"
-	"github.com/aws/aws-sdk-go/service/s3"
-)
-
-//FileUploader aws compliant bucket upload
-type FileUploader struct {
-	storage    *s3.S3
-	bucketName string
-	clientID   string
-	secretID   string
-}
-
-// NewFileUploader creates a new S3 compliant bucket uploader
-func NewFileUploader(bucketName, region, accessKeyID, secretID, token, s3Host string) (*FileUploader, error) {
-	sess, err := session.NewSession(&aws.Config{
-		Region:      aws.String(region),
-		Credentials: credentials.NewStaticCredentials(accessKeyID, secretID, token),
-	})
-	if err != nil {
-		return nil, err
-	}
-
-	var storage *s3.S3
-	if s3Host != "" {
-		storage = s3.New(sess, &aws.Config{Endpoint: aws.String(s3Host)})
-	} else {
-		storage = s3.New(sess)
-	}
-
-	return &FileUploader{
-		storage:    storage,
-		bucketName: bucketName,
-	}, nil
-}
-
-// Upload a file to the bucket
-func (u *FileUploader) Upload(filepath string) error {
-	info, err := os.Stat(filepath)
-	if err != nil {
-		return err
-	}
-	file, err := os.Open(filepath)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	_, serr := u.storage.PutObjectWithContext(context.Background(), &s3.PutObjectInput{
-		Bucket: aws.String(u.bucketName),
-		Key:    aws.String(info.Name()),
-		Body:   file,
-	})
-	return serr
-}

awsuploader/upload_manager.go

@@ -1,7 +0,0 @@
-package awsuploader
-
-// UploadManager is used to manage file uploads on an interval
-type UploadManager interface {
-	Upload(string) error
-	Start()
-}

awsuploader/uploader.go

@@ -1,7 +0,0 @@
-package awsuploader
-
-// Uploader the functions required to upload to a bucket
-type Uploader interface {
-	//Upload a file to the bucket
-	Upload(string) error
-}

carrier/carrier.go

@@ -4,21 +4,28 @@
 package carrier
 
 import (
+	"crypto/tls"
 	"io"
 	"net"
 	"net/http"
 	"os"
 	"strings"
 
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/token"
 	"github.com/cloudflare/cloudflared/h2mux"
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/token"
+
 	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
 )
 
+const LogFieldOriginURL = "originURL"
+
 type StartOptions struct {
-	OriginURL string
-	Headers   http.Header
+	AppInfo         *token.AppInfo
+	OriginURL       string
+	Headers         http.Header
+	Host            string
+	TLSClientConfig *tls.Config
 }
 
 // Connection wraps up all the needed functions to forward over the tunnel
@@ -49,7 +56,7 @@ func (c *StdinoutStream) Write(p []byte) (int, error) {
 // Helper to allow defering the response close with a check that the resp is not nil
 func closeRespBody(resp *http.Response) {
 	if resp != nil {
-		resp.Body.Close()
+		_ = resp.Body.Close()
 	}
 }
 
@@ -103,7 +110,7 @@ func Serve(remoteConn Connection, listener net.Listener, shutdownC <-chan struct
 // serveConnection handles connections for the Serve() call
 func serveConnection(remoteConn Connection, c net.Conn, options *StartOptions) {
 	defer c.Close()
-	remoteConn.ServeStream(options, c)
+	_ = remoteConn.ServeStream(options, c)
 }
 
 // IsAccessResponse checks the http Response to see if the url location
@@ -117,7 +124,7 @@ func IsAccessResponse(resp *http.Response) bool {
 	if err != nil || location == nil {
 		return false
 	}
-	if strings.HasPrefix(location.Path, "/cdn-cgi/access/login") {
+	if strings.HasPrefix(location.Path, token.AccessLoginWorkerPath) {
 		return true
 	}
 
@@ -125,13 +132,13 @@ func IsAccessResponse(resp *http.Response) bool {
 }
 
 // BuildAccessRequest builds an HTTP request with the Access token set
-func BuildAccessRequest(options *StartOptions, logger logger.Service) (*http.Request, error) {
+func BuildAccessRequest(options *StartOptions, log *zerolog.Logger) (*http.Request, error) {
 	req, err := http.NewRequest(http.MethodGet, options.OriginURL, nil)
 	if err != nil {
 		return nil, err
 	}
 
-	token, err := token.FetchTokenWithRedirect(req.URL, logger)
+	token, err := token.FetchTokenWithRedirect(req.URL, options.AppInfo, log)
 	if err != nil {
 		return nil, err
 	}

carrier/carrier_test.go

@@ -9,8 +9,8 @@ import (
 	"sync"
 	"testing"
 
-	"github.com/cloudflare/cloudflared/logger"
 	ws "github.com/gorilla/websocket"
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -43,8 +43,8 @@ func (s *testStreamer) Write(p []byte) (int, error) {
 
 func TestStartClient(t *testing.T) {
 	message := "Good morning Austin! Time for another sunny day in the great state of Texas."
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
-	wsConn := NewWSConnection(logger, false)
+	log := zerolog.Nop()
+	wsConn := NewWSConnection(&log)
 	ts := newTestWebSocketServer()
 	defer ts.Close()
 
@@ -55,10 +55,10 @@ func TestStartClient(t *testing.T) {
 	}
 	err := StartClient(wsConn, buf, options)
 	assert.NoError(t, err)
-	buf.Write([]byte(message))
+	_, _ = buf.Write([]byte(message))
 
 	readBuffer := make([]byte, len(message))
-	buf.Read(readBuffer)
+	_, _ = buf.Read(readBuffer)
 	assert.Equal(t, message, string(readBuffer))
 }
 
@@ -68,9 +68,9 @@ func TestStartServer(t *testing.T) {
 		t.Fatalf("Error starting listener: %v", err)
 	}
 	message := "Good morning Austin! Time for another sunny day in the great state of Texas."
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
+	log := zerolog.Nop()
 	shutdownC := make(chan struct{})
-	wsConn := NewWSConnection(logger, false)
+	wsConn := NewWSConnection(&log)
 	ts := newTestWebSocketServer()
 	defer ts.Close()
 	options := &StartOptions{
@@ -81,15 +81,16 @@ func TestStartServer(t *testing.T) {
 	go func() {
 		err := Serve(wsConn, listener, shutdownC, options)
 		if err != nil {
-			t.Fatalf("Error running server: %v", err)
+			t.Errorf("Error running server: %v", err)
+			return
 		}
 	}()
 
 	conn, err := net.Dial("tcp", listener.Addr().String())
-	conn.Write([]byte(message))
+	_, _ = conn.Write([]byte(message))
 
 	readBuffer := make([]byte, len(message))
-	conn.Read(readBuffer)
+	_, _ = conn.Read(readBuffer)
 	assert.Equal(t, string(readBuffer), message)
 }
 

carrier/websocket.go

@@ -7,22 +7,24 @@ import (
 	"net/http"
 	"net/http/httputil"
 
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/token"
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/ingress"
 	"github.com/cloudflare/cloudflared/socks"
+	"github.com/cloudflare/cloudflared/token"
 	cfwebsocket "github.com/cloudflare/cloudflared/websocket"
+
 	"github.com/gorilla/websocket"
+	"github.com/rs/zerolog"
 )
 
 // Websocket is used to carry data via WS binary frames over the tunnel from client to the origin
 // This implements the functions for glider proxy (sock5) and the carrier interface
 type Websocket struct {
-	logger  logger.Service
+	log     *zerolog.Logger
 	isSocks bool
 }
 
 type wsdialer struct {
-	conn *cfwebsocket.Conn
+	conn *cfwebsocket.GorillaConn
 }
 
 func (d *wsdialer) Dial(address string) (io.ReadWriteCloser, *socks.AddrSpec, error) {
@@ -36,59 +38,69 @@ func (d *wsdialer) Dial(address string) (io.ReadWriteCloser, *socks.AddrSpec, er
 }
 
 // NewWSConnection returns a new connection object
-func NewWSConnection(logger logger.Service, isSocks bool) Connection {
+func NewWSConnection(log *zerolog.Logger) Connection {
 	return &Websocket{
-		logger:  logger,
-		isSocks: isSocks,
+		log: log,
 	}
 }
 
 // ServeStream will create a Websocket client stream connection to the edge
 // it blocks and writes the raw data from conn over the tunnel
 func (ws *Websocket) ServeStream(options *StartOptions, conn io.ReadWriter) error {
-	wsConn, err := createWebsocketStream(options, ws.logger)
+	wsConn, err := createWebsocketStream(options, ws.log)
 	if err != nil {
-		ws.logger.Errorf("failed to connect to %s with error: %s", options.OriginURL, err)
+		ws.log.Err(err).Str(LogFieldOriginURL, options.OriginURL).Msg("failed to connect to origin")
 		return err
 	}
 	defer wsConn.Close()
 
-	if ws.isSocks {
-		dialer := &wsdialer{conn: wsConn}
-		requestHandler := socks.NewRequestHandler(dialer)
-		socksServer := socks.NewConnectionHandler(requestHandler)
-
-		socksServer.Serve(conn)
-	} else {
-		cfwebsocket.Stream(wsConn, conn)
-	}
+	ingress.Stream(wsConn, conn, ws.log)
 	return nil
 }
 
 // StartServer creates a Websocket server to listen for connections.
 // This is used on the origin (tunnel) side to take data from the muxer and send it to the origin
 func (ws *Websocket) StartServer(listener net.Listener, remote string, shutdownC <-chan struct{}) error {
-	return cfwebsocket.StartProxyServer(ws.logger, listener, remote, shutdownC, cfwebsocket.DefaultStreamHandler)
+	return cfwebsocket.StartProxyServer(ws.log, listener, remote, shutdownC, ingress.DefaultStreamHandler)
 }
 
 // createWebsocketStream will create a WebSocket connection to stream data over
 // It also handles redirects from Access and will present that flow if
 // the token is not present on the request
-func createWebsocketStream(options *StartOptions, logger logger.Service) (*cfwebsocket.Conn, error) {
+func createWebsocketStream(options *StartOptions, log *zerolog.Logger) (*cfwebsocket.GorillaConn, error) {
 	req, err := http.NewRequest(http.MethodGet, options.OriginURL, nil)
 	if err != nil {
 		return nil, err
 	}
 	req.Header = options.Headers
+	if options.Host != "" {
+		req.Host = options.Host
+	}
 
 	dump, err := httputil.DumpRequest(req, false)
-	logger.Debugf("Websocket request: %s", string(dump))
+	log.Debug().Msgf("Websocket request: %s", string(dump))
 
-	wsConn, resp, err := cfwebsocket.ClientConnect(req, nil)
+	dialer := &websocket.Dialer{
+		TLSClientConfig: options.TLSClientConfig,
+		Proxy:           http.ProxyFromEnvironment,
+	}
+	wsConn, resp, err := cfwebsocket.ClientConnect(req, dialer)
 	defer closeRespBody(resp)
 
 	if err != nil && IsAccessResponse(resp) {
-		wsConn, err = createAccessAuthenticatedStream(options, logger)
+		// Only get Access app info if we know the origin is protected by Access
+		originReq, err := http.NewRequest(http.MethodGet, options.OriginURL, nil)
+		if err != nil {
+			return nil, err
+		}
+
+		appInfo, err := token.GetAppInfo(originReq.URL)
+		if err != nil {
+			return nil, err
+		}
+		options.AppInfo = appInfo
+
+		wsConn, err = createAccessAuthenticatedStream(options, log)
 		if err != nil {
 			return nil, err
 		}
@@ -96,7 +108,7 @@ func createWebsocketStream(options *StartOptions, logger logger.Service) (*cfweb
 		return nil, err
 	}
 
-	return &cfwebsocket.Conn{Conn: wsConn}, nil
+	return &cfwebsocket.GorillaConn{Conn: wsConn}, nil
 }
 
 // createAccessAuthenticatedStream will try load a token from storage and make
@@ -104,8 +116,8 @@ func createWebsocketStream(options *StartOptions, logger logger.Service) (*cfweb
 // this probably means the token in storage is invalid (expired/revoked). If that
 // happens it deletes the token and runs the connection again, so the user can
 // login again and generate a new one.
-func createAccessAuthenticatedStream(options *StartOptions, logger logger.Service) (*websocket.Conn, error) {
-	wsConn, resp, err := createAccessWebSocketStream(options, logger)
+func createAccessAuthenticatedStream(options *StartOptions, log *zerolog.Logger) (*websocket.Conn, error) {
+	wsConn, resp, err := createAccessWebSocketStream(options, log)
 	defer closeRespBody(resp)
 	if err == nil {
 		return wsConn, nil
@@ -116,14 +128,10 @@ func createAccessAuthenticatedStream(options *StartOptions, logger logger.Servic
 	}
 
 	// Access Token is invalid for some reason. Go through regen flow
-	originReq, err := http.NewRequest(http.MethodGet, options.OriginURL, nil)
-	if err != nil {
+	if err := token.RemoveTokenIfExists(options.AppInfo); err != nil {
 		return nil, err
 	}
-	if err := token.RemoveTokenIfExists(originReq.URL); err != nil {
-		return nil, err
-	}
-	wsConn, resp, err = createAccessWebSocketStream(options, logger)
+	wsConn, resp, err = createAccessWebSocketStream(options, log)
 	defer closeRespBody(resp)
 	if err != nil {
 		return nil, err
@@ -133,23 +141,23 @@ func createAccessAuthenticatedStream(options *StartOptions, logger logger.Servic
 }
 
 // createAccessWebSocketStream builds an Access request and makes a connection
-func createAccessWebSocketStream(options *StartOptions, logger logger.Service) (*websocket.Conn, *http.Response, error) {
-	req, err := BuildAccessRequest(options, logger)
+func createAccessWebSocketStream(options *StartOptions, log *zerolog.Logger) (*websocket.Conn, *http.Response, error) {
+	req, err := BuildAccessRequest(options, log)
 	if err != nil {
 		return nil, nil, err
 	}
 
 	dump, err := httputil.DumpRequest(req, false)
-	logger.Debugf("Access Websocket request: %s", string(dump))
+	log.Debug().Msgf("Access Websocket request: %s", string(dump))
 
 	conn, resp, err := cfwebsocket.ClientConnect(req, nil)
 
 	if resp != nil {
 		r, err := httputil.DumpResponse(resp, true)
 		if r != nil {
-			logger.Debugf("Websocket response: %q", r)
+			log.Debug().Msgf("Websocket response: %q", r)
 		} else if err != nil {
-			logger.Debugf("Websocket response error: %v", err)
+			log.Debug().Msgf("Websocket response error: %v", err)
 		}
 	}
 

cfsetup.yaml

@@ -1,26 +1,30 @@
-pinned_go: &pinned_go go=1.15.2-1
+pinned_go: &pinned_go go=1.15.7-1
+pinned_go_fips: &pinned_go_fips go-fips=1.15.5-3
+
 build_dir: &build_dir /cfsetup_build
-default-flavor: stretch
+default-flavor: buster
 stretch: &stretch
   build:
     build_dir: *build_dir
     builddeps:
-      - *pinned_go
+      - *pinned_go_fips
       - build-essential
     post-cache:
       - export GOOS=linux
       - export GOARCH=amd64
+      - export FIPS=true
       - make cloudflared
   build-deb:
     build_dir: *build_dir
     builddeps:
-      - *pinned_go
+      - *pinned_go_fips
       - build-essential
       - fakeroot
       - rubygem-fpm
     post-cache:
       - export GOOS=linux
       - export GOARCH=amd64
+      - export FIPS=true
       - make cloudflared-deb
   build-deb-arm64:
     build_dir: *build_dir
@@ -36,7 +40,7 @@ stretch: &stretch
   publish-deb:
     build_dir: *build_dir
     builddeps:
-      - *pinned_go
+      - *pinned_go_fips
       - build-essential
       - fakeroot
       - rubygem-fpm
@@ -44,20 +48,22 @@ stretch: &stretch
     post-cache:
       - export GOOS=linux
       - export GOARCH=amd64
+      - export FIPS=true
       - make publish-deb
   release-linux-amd64:
     build_dir: *build_dir
     builddeps:
-      - *pinned_go
+      - *pinned_go_fips
       - build-essential
     post-cache:
       - export GOOS=linux
       - export GOARCH=amd64
+      - export FIPS=true
       - make release
   github-release-linux-amd64:
     build_dir: *build_dir
     builddeps:
-      - *pinned_go
+      - *pinned_go_fips
       - build-essential
       - python3-setuptools
       - python3-pip
@@ -66,6 +72,7 @@ stretch: &stretch
     post-cache:
       - export GOOS=linux
       - export GOARCH=amd64
+      - export FIPS=true
       - make github-release
   release-linux-armv6:
     build_dir: *build_dir
@@ -185,15 +192,35 @@ stretch: &stretch
   test:
     build_dir: *build_dir
     builddeps:
-      - *pinned_go
+      - *pinned_go_fips
       - build-essential
+      - gotest-to-teamcity
     post-cache:
       - export GOOS=linux
       - export GOARCH=amd64
+      - export FIPS=true
       # cd to a non-module directory: https://github.com/golang/go/issues/24250
       - (cd / && go get github.com/BurntSushi/go-sumtype)
       - export PATH="$HOME/go/bin:$PATH"
-      - make test
+      - make test | gotest-to-teamcity
+  component-test:
+    build_dir: *build_dir
+    builddeps:
+      - *pinned_go_fips
+      - python3.7
+      - python3-pip
+      - python3-setuptools
+      # procps installs the ps command which is needed in test_sysv_service because the init script
+      # uses ps pid to determine if the agent is running
+      - procps
+    pre-cache-copy-paths:
+      - component-tests/requirements.txt
+    pre-cache:
+      - sudo pip3 install --upgrade -r component-tests/requirements.txt
+    post-cache:
+      # Constructs config file from env vars
+      - python3 component-tests/config.py
+      - pytest component-tests
   update-homebrew:
     builddeps:
       - openssh-client
@@ -239,10 +266,8 @@ stretch: &stretch
       - export GOARCH=amd64
       - make publish-cloudflared-junos
 
-jessie: *stretch
-
 buster: *stretch
-
+bullseye: *stretch
 centos-7:
   publish-rpm:
     build_dir: *build_dir
@@ -250,8 +275,8 @@ centos-7:
       - https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
     pre-cache:
       - yum install -y fakeroot
-      - wget https://golang.org/dl/go1.15.2.linux-amd64.tar.gz -P /tmp/
-      - tar -C /usr/local -xzf /tmp/go1.15.2.linux-amd64.tar.gz
+      - wget https://golang.org/dl/go1.15.7.linux-amd64.tar.gz -P /tmp/
+      - tar -C /usr/local -xzf /tmp/go1.15.7.linux-amd64.tar.gz
     post-cache:
       - export PATH=$PATH:/usr/local/go/bin
       - export GOOS=linux
@@ -262,21 +287,10 @@ centos-7:
     builddeps: *el7_builddeps
     pre-cache:
       - yum install -y fakeroot
-      - wget https://golang.org/dl/go1.15.2.linux-amd64.tar.gz -P /tmp/
-      - tar -C /usr/local -xzf /tmp/go1.15.2.linux-amd64.tar.gz
+      - wget https://golang.org/dl/go1.15.7.linux-amd64.tar.gz -P /tmp/
+      - tar -C /usr/local -xzf /tmp/go1.15.7.linux-amd64.tar.gz
     post-cache:
       - export PATH=$PATH:/usr/local/go/bin
       - export GOOS=linux
       - export GOARCH=amd64
       - make cloudflared-rpm
-
-# cfsetup compose
-default-stack: test_dbconnect
-test_dbconnect:
-  compose:
-    up-args:
-      - --renew-anon-volumes
-      - --abort-on-container-exit
-      - --exit-code-from=cloudflared
-    files:
-      - dbconnect_tests/dbconnect.yaml

cmd/cloudflared/access/carrier.go

@@ -1,32 +1,33 @@
 package access
 
 import (
+	"crypto/tls"
+	"fmt"
 	"net/http"
-	"net/url"
 	"strings"
 
 	"github.com/cloudflare/cloudflared/carrier"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
+	"github.com/cloudflare/cloudflared/config"
 	"github.com/cloudflare/cloudflared/h2mux"
 	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/validation"
+
 	"github.com/pkg/errors"
-	cli "github.com/urfave/cli/v2"
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v2"
+)
+
+const (
+	LogFieldHost = "host"
 )
 
 // StartForwarder starts a client side websocket forward
-func StartForwarder(forwarder config.Forwarder, shutdown <-chan struct{}, logger logger.Service) error {
-	validURLString, err := validation.ValidateUrl(forwarder.Listener)
+func StartForwarder(forwarder config.Forwarder, shutdown <-chan struct{}, log *zerolog.Logger) error {
+	validURL, err := validation.ValidateUrl(forwarder.Listener)
 	if err != nil {
 		return errors.Wrap(err, "error validating origin URL")
 	}
 
-	validURL, err := url.Parse(validURLString)
-	if err != nil {
-		return errors.Wrap(err, "error parsing origin URL")
-	}
-
 	// get the headers from the config file and add to the request
 	headers := make(http.Header)
 	if forwarder.TokenClientID != "" {
@@ -47,9 +48,9 @@ func StartForwarder(forwarder config.Forwarder, shutdown <-chan struct{}, logger
 	}
 
 	// we could add a cmd line variable for this bool if we want the SOCK5 server to be on the client side
-	wsConn := carrier.NewWSConnection(logger, false)
+	wsConn := carrier.NewWSConnection(log)
 
-	logger.Infof("Start Websocket listener on: %s", validURL.Host)
+	log.Info().Str(LogFieldHost, validURL.Host).Msg("Start Websocket listener")
 	return carrier.StartForwarder(wsConn, validURL.Host, shutdown, options)
 }
 
@@ -58,22 +59,7 @@ func StartForwarder(forwarder config.Forwarder, shutdown <-chan struct{}, logger
 // useful for proxying other protocols (like ssh) over websockets
 // (which you can put Access in front of)
 func ssh(c *cli.Context) error {
-	logDirectory, logLevel := config.FindLogSettings()
-
-	flagLogDirectory := c.String(sshLogDirectoryFlag)
-	if flagLogDirectory != "" {
-		logDirectory = flagLogDirectory
-	}
-
-	flagLogLevel := c.String(sshLogLevelFlag)
-	if flagLogLevel != "" {
-		logLevel = flagLogLevel
-	}
-
-	logger, err := logger.New(logger.DefaultFile(logDirectory), logger.LogLevelString(logLevel))
-	if err != nil {
-		return cliutil.PrintLoggerSetupError("error setting up logger", err)
-	}
+	log := logger.CreateSSHLoggerFromContext(c, logger.EnableTerminalLog)
 
 	// get the hostname from the cmdline and error out if its not provided
 	rawHostName := c.String(sshHostnameFlag)
@@ -100,27 +86,41 @@ func ssh(c *cli.Context) error {
 	options := &carrier.StartOptions{
 		OriginURL: originURL,
 		Headers:   headers,
+		Host:      hostname,
+	}
+
+	if connectTo := c.String(sshConnectTo); connectTo != "" {
+		parts := strings.Split(connectTo, ":")
+		switch len(parts) {
+		case 1:
+			options.OriginURL = fmt.Sprintf("https://%s", parts[0])
+		case 2:
+			options.OriginURL = fmt.Sprintf("https://%s:%s", parts[0], parts[1])
+		case 3:
+			options.OriginURL = fmt.Sprintf("https://%s:%s", parts[2], parts[1])
+			options.TLSClientConfig = &tls.Config{
+				InsecureSkipVerify: true,
+				ServerName:         parts[0],
+			}
+			log.Warn().Msgf("Using insecure SSL connection because SNI overridden to %s", parts[0])
+		default:
+			return fmt.Errorf("invalid connection override: %s", connectTo)
+		}
 	}
 
 	// we could add a cmd line variable for this bool if we want the SOCK5 server to be on the client side
-	wsConn := carrier.NewWSConnection(logger, false)
+	wsConn := carrier.NewWSConnection(log)
 
 	if c.NArg() > 0 || c.IsSet(sshURLFlag) {
-		localForwarder, err := config.ValidateUrl(c, true)
+		forwarder, err := config.ValidateUrl(c, true)
 		if err != nil {
-			logger.Errorf("Error validating origin URL: %s", err)
+			log.Err(err).Msg("Error validating origin URL")
 			return errors.Wrap(err, "error validating origin URL")
 		}
-		forwarder, err := url.Parse(localForwarder)
-		if err != nil {
-			logger.Errorf("Error validating origin URL: %s", err)
-			return errors.Wrap(err, "error validating origin URL")
-		}
-
-		logger.Infof("Start Websocket listener on: %s", forwarder.Host)
+		log.Info().Str(LogFieldHost, forwarder.Host).Msg("Start Websocket listener")
 		err = carrier.StartForwarder(wsConn, forwarder.Host, shutdownC, options)
 		if err != nil {
-			logger.Errorf("Error on Websocket listener: %s", err)
+			log.Err(err).Msg("Error on Websocket listener")
 		}
 		return err
 	}

cmd/cloudflared/access/cmd.go

@@ -2,44 +2,45 @@ package access
 
 import (
 	"fmt"
+	"io"
 	"net/http"
 	"net/url"
 	"os"
+	"os/exec"
 	"strings"
 	"text/template"
 	"time"
 
 	"github.com/cloudflare/cloudflared/carrier"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/shell"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/token"
 	"github.com/cloudflare/cloudflared/h2mux"
 	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/sshgen"
+	"github.com/cloudflare/cloudflared/token"
 	"github.com/cloudflare/cloudflared/validation"
-	"github.com/pkg/errors"
-	"golang.org/x/net/idna"
 
 	"github.com/getsentry/raven-go"
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
 	"github.com/urfave/cli/v2"
+	"golang.org/x/net/idna"
 )
 
 const (
-	sshHostnameFlag     = "hostname"
-	sshDestinationFlag  = "destination"
-	sshURLFlag          = "url"
-	sshHeaderFlag       = "header"
-	sshTokenIDFlag      = "service-token-id"
-	sshTokenSecretFlag  = "service-token-secret"
-	sshGenCertFlag      = "short-lived-cert"
-	sshLogDirectoryFlag = "log-directory"
-	sshLogLevelFlag     = "log-level"
-	sshConfigTemplate   = `
+	sshHostnameFlag    = "hostname"
+	sshDestinationFlag = "destination"
+	sshURLFlag         = "url"
+	sshHeaderFlag      = "header"
+	sshTokenIDFlag     = "service-token-id"
+	sshTokenSecretFlag = "service-token-secret"
+	sshGenCertFlag     = "short-lived-cert"
+	sshConnectTo       = "connect-to"
+	sshConfigTemplate  = `
 Add to your {{.Home}}/.ssh/config:
 
 Host {{.Hostname}}
 {{- if .ShortLivedCerts}}
-  ProxyCommand bash -c '{{.Cloudflared}} access ssh-gen --hostname %h; ssh -tt %r@cfpipe-{{.Hostname}} >&2 <&1' 
+  ProxyCommand bash -c '{{.Cloudflared}} access ssh-gen --hostname %h; ssh -tt %r@cfpipe-{{.Hostname}} >&2 <&1'
 
 Host cfpipe-{{.Hostname}}
   HostName {{.Hostname}}
@@ -55,13 +56,12 @@ Host cfpipe-{{.Hostname}}
 const sentryDSN = "https://56a9c9fa5c364ab28f34b14f35ea0f1b@sentry.io/189878"
 
 var (
-	shutdownC      chan struct{}
-	graceShutdownC chan struct{}
+	shutdownC chan struct{}
 )
 
 // Init will initialize and store vars from the main program
-func Init(s, g chan struct{}) {
-	shutdownC, graceShutdownC = s, g
+func Init(shutdown chan struct{}) {
+	shutdownC = shutdown
 }
 
 // Flags return the global flags for Access related commands (hopefully none)
@@ -77,30 +77,24 @@ func Commands() []*cli.Command {
 			Aliases:  []string{"forward"},
 			Category: "Access",
 			Usage:    "access <subcommand>",
-			Description: `Cloudflare Access protects internal resources by securing, authenticating and monitoring access 
-			per-user and by application. With Cloudflare Access, only authenticated users with the required permissions are 
-			able to reach sensitive resources. The commands provided here allow you to interact with Access protected 
+			Description: `Cloudflare Access protects internal resources by securing, authenticating and monitoring access
+			per-user and by application. With Cloudflare Access, only authenticated users with the required permissions are
+			able to reach sensitive resources. The commands provided here allow you to interact with Access protected
 			applications from the command line.`,
 			Subcommands: []*cli.Command{
 				{
 					Name:   "login",
-					Action: cliutil.ErrorHandler(login),
+					Action: cliutil.Action(login),
 					Usage:  "login <url of access application>",
 					Description: `The login subcommand initiates an authentication flow with your identity provider.
 					The subcommand will launch a browser. For headless systems, a url is provided.
 					Once authenticated with your identity provider, the login command will generate a JSON Web Token (JWT)
-					scoped to your identity, the application you intend to reach, and valid for a session duration set by your 
+					scoped to your identity, the application you intend to reach, and valid for a session duration set by your
 					administrator. cloudflared stores the token in local storage.`,
-					Flags: []cli.Flag{
-						&cli.StringFlag{
-							Name:   "url",
-							Hidden: true,
-						},
-					},
 				},
 				{
 					Name:   "curl",
-					Action: cliutil.ErrorHandler(curl),
+					Action: cliutil.Action(curl),
 					Usage:  "curl [--allow-request, -ar] <url> [<curl args>...]",
 					Description: `The curl subcommand wraps curl and automatically injects the JWT into a cf-access-token
 					header when using curl to reach an application behind Access.`,
@@ -109,7 +103,7 @@ func Commands() []*cli.Command {
 				},
 				{
 					Name:        "token",
-					Action:      cliutil.ErrorHandler(generateToken),
+					Action:      cliutil.Action(generateToken),
 					Usage:       "token -app=<url of access application>",
 					ArgsUsage:   "url of Access application",
 					Description: `The token subcommand produces a JWT which can be used to authenticate requests.`,
@@ -121,7 +115,7 @@ func Commands() []*cli.Command {
 				},
 				{
 					Name:        "tcp",
-					Action:      cliutil.ErrorHandler(ssh),
+					Action:      cliutil.Action(ssh),
 					Aliases:     []string{"rdp", "ssh", "smb"},
 					Usage:       "",
 					ArgsUsage:   "",
@@ -157,20 +151,25 @@ func Commands() []*cli.Command {
 							Usage:   "specify an Access service token secret you wish to use.",
 						},
 						&cli.StringFlag{
-							Name:    sshLogDirectoryFlag,
+							Name:    logger.LogSSHDirectoryFlag,
 							Aliases: []string{"logfile"}, //added to match the tunnel side
 							Usage:   "Save application log to this directory for reporting issues.",
 						},
 						&cli.StringFlag{
-							Name:    sshLogLevelFlag,
+							Name:    logger.LogSSHLevelFlag,
 							Aliases: []string{"loglevel"}, //added to match the tunnel side
-							Usage:   "Application logging level {fatal, error, info, debug}. ",
+							Usage:   "Application logging level {debug, info, warn, error, fatal}. ",
+						},
+						&cli.StringFlag{
+							Name:   sshConnectTo,
+							Hidden: true,
+							Usage:  "Connect to alternate location for testing, value is host, host:port, or sni:port:host",
 						},
 					},
 				},
 				{
 					Name:        "ssh-config",
-					Action:      cliutil.ErrorHandler(sshConfig),
+					Action:      cliutil.Action(sshConfig),
 					Usage:       "",
 					Description: `Prints an example configuration ~/.ssh/config`,
 					Flags: []cli.Flag{
@@ -186,7 +185,7 @@ func Commands() []*cli.Command {
 				},
 				{
 					Name:        "ssh-gen",
-					Action:      cliutil.ErrorHandler(sshGen),
+					Action:      cliutil.Action(sshGen),
 					Usage:       "",
 					Description: `Generates a short lived certificate for given hostname`,
 					Flags: []cli.Flag{
@@ -207,24 +206,27 @@ func login(c *cli.Context) error {
 		return err
 	}
 
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	args := c.Args()
 	rawURL := ensureURLScheme(args.First())
 	appURL, err := url.Parse(rawURL)
 	if args.Len() < 1 || err != nil {
-		logger.Errorf("Please provide the url of the Access application\n")
-		return err
-	}
-	if err := verifyTokenAtEdge(appURL, c, logger); err != nil {
-		logger.Errorf("Could not verify token: %s", err)
+		log.Error().Msg("Please provide the url of the Access application")
 		return err
 	}
 
-	cfdToken, err := token.GetTokenIfExists(appURL)
+	appInfo, err := token.GetAppInfo(appURL)
+	if err != nil {
+		return err
+	}
+
+	if err := verifyTokenAtEdge(appURL, appInfo, c, log); err != nil {
+		log.Err(err).Msg("Could not verify token")
+		return err
+	}
+
+	cfdToken, err := token.GetAppTokenIfExists(appInfo)
 	if err != nil {
 		fmt.Fprintln(os.Stderr, "Unable to find token for provided application.")
 		return err
@@ -252,39 +254,61 @@ func curl(c *cli.Context) error {
 	if err := raven.SetDSN(sentryDSN); err != nil {
 		return err
 	}
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	args := c.Args()
 	if args.Len() < 1 {
-		logger.Error("Please provide the access app and command you wish to run.")
+		log.Error().Msg("Please provide the access app and command you wish to run.")
 		return errors.New("incorrect args")
 	}
 
 	cmdArgs, allowRequest := parseAllowRequest(args.Slice())
-	appURL, err := getAppURL(cmdArgs, logger)
+	appURL, err := getAppURL(cmdArgs, log)
 	if err != nil {
 		return err
 	}
 
-	tok, err := token.GetTokenIfExists(appURL)
+	appInfo, err := token.GetAppInfo(appURL)
+	if err != nil {
+		return err
+	}
+	tok, err := token.GetAppTokenIfExists(appInfo)
 	if err != nil || tok == "" {
 		if allowRequest {
-			logger.Info("You don't have an Access token set. Please run access token <access application> to fetch one.")
-			return shell.Run("curl", cmdArgs...)
+			log.Info().Msg("You don't have an Access token set. Please run access token <access application> to fetch one.")
+			return run("curl", cmdArgs...)
 		}
-		tok, err = token.FetchToken(appURL, logger)
+		tok, err = token.FetchToken(appURL, appInfo, log)
 		if err != nil {
-			logger.Errorf("Failed to refresh token: %s", err)
+			log.Err(err).Msg("Failed to refresh token")
 			return err
 		}
 	}
 
 	cmdArgs = append(cmdArgs, "-H")
 	cmdArgs = append(cmdArgs, fmt.Sprintf("%s: %s", h2mux.CFAccessTokenHeader, tok))
-	return shell.Run("curl", cmdArgs...)
+	return run("curl", cmdArgs...)
+}
+
+// run kicks off a shell task and pipe the results to the respective std pipes
+func run(cmd string, args ...string) error {
+	c := exec.Command(cmd, args...)
+	stderr, err := c.StderrPipe()
+	if err != nil {
+		return err
+	}
+	go func() {
+		io.Copy(os.Stderr, stderr)
+	}()
+
+	stdout, err := c.StdoutPipe()
+	if err != nil {
+		return err
+	}
+	go func() {
+		io.Copy(os.Stdout, stdout)
+	}()
+	return c.Run()
 }
 
 // token dumps provided token to stdout
@@ -292,14 +316,19 @@ func generateToken(c *cli.Context) error {
 	if err := raven.SetDSN(sentryDSN); err != nil {
 		return err
 	}
-	appURL, err := url.Parse(c.String("app"))
+	appURL, err := url.Parse(ensureURLScheme(c.String("app")))
 	if err != nil || c.NumFlags() < 1 {
 		fmt.Fprintln(os.Stderr, "Please provide a url.")
 		return err
 	}
-	tok, err := token.GetTokenIfExists(appURL)
+
+	appInfo, err := token.GetAppInfo(appURL)
+	if err != nil {
+		return err
+	}
+	tok, err := token.GetAppTokenIfExists(appInfo)
 	if err != nil || tok == "" {
-		fmt.Fprintln(os.Stderr, "Unable to find token for provided application. Please run token command to generate token.")
+		fmt.Fprintln(os.Stderr, "Unable to find token for provided application. Please run login command to generate token.")
 		return err
 	}
 
@@ -331,10 +360,7 @@ func sshConfig(c *cli.Context) error {
 
 // sshGen generates a short lived certificate for provided hostname
 func sshGen(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	// get the hostname from the cmdline and error out if its not provided
 	rawHostName := c.String(sshHostnameFlag)
@@ -351,28 +377,33 @@ func sshGen(c *cli.Context) error {
 	// this fetchToken function mutates the appURL param. We should refactor that
 	fetchTokenURL := &url.URL{}
 	*fetchTokenURL = *originURL
-	cfdToken, err := token.FetchTokenWithRedirect(fetchTokenURL, logger)
+
+	appInfo, err := token.GetAppInfo(fetchTokenURL)
+	if err != nil {
+		return err
+	}
+	cfdToken, err := token.FetchTokenWithRedirect(fetchTokenURL, appInfo, log)
 	if err != nil {
 		return err
 	}
 
-	if err := sshgen.GenerateShortLivedCertificate(originURL, cfdToken); err != nil {
+	if err := sshgen.GenerateShortLivedCertificate(appInfo, cfdToken); err != nil {
 		return err
 	}
 
 	return nil
 }
 
-// getAppURL will pull the appURL needed for fetching a user's Access token
-func getAppURL(cmdArgs []string, logger logger.Service) (*url.URL, error) {
+// getAppURL will pull the request URL needed for fetching a user's Access token
+func getAppURL(cmdArgs []string, log *zerolog.Logger) (*url.URL, error) {
 	if len(cmdArgs) < 1 {
-		logger.Error("Please provide a valid URL as the first argument to curl.")
+		log.Error().Msg("Please provide a valid URL as the first argument to curl.")
 		return nil, errors.New("not a valid url")
 	}
 
 	u, err := processURL(cmdArgs[0])
 	if err != nil {
-		logger.Error("Please provide a valid URL as the first argument to curl.")
+		log.Error().Msg("Please provide a valid URL as the first argument to curl.")
 		return nil, err
 	}
 
@@ -438,7 +469,7 @@ func isFileThere(candidate string) bool {
 // verifyTokenAtEdge checks for a token on disk, or generates a new one.
 // Then makes a request to to the origin with the token to ensure it is valid.
 // Returns nil if token is valid.
-func verifyTokenAtEdge(appUrl *url.URL, c *cli.Context, logger logger.Service) error {
+func verifyTokenAtEdge(appUrl *url.URL, appInfo *token.AppInfo, c *cli.Context, log *zerolog.Logger) error {
 	headers := buildRequestHeaders(c.StringSlice(sshHeaderFlag))
 	if c.IsSet(sshTokenIDFlag) {
 		headers.Add(h2mux.CFAccessClientIDHeader, c.String(sshTokenIDFlag))
@@ -446,19 +477,19 @@ func verifyTokenAtEdge(appUrl *url.URL, c *cli.Context, logger logger.Service) e
 	if c.IsSet(sshTokenSecretFlag) {
 		headers.Add(h2mux.CFAccessClientSecretHeader, c.String(sshTokenSecretFlag))
 	}
-	options := &carrier.StartOptions{OriginURL: appUrl.String(), Headers: headers}
+	options := &carrier.StartOptions{AppInfo: appInfo, OriginURL: appUrl.String(), Headers: headers}
 
-	if valid, err := isTokenValid(options, logger); err != nil {
+	if valid, err := isTokenValid(options, log); err != nil {
 		return err
 	} else if valid {
 		return nil
 	}
 
-	if err := token.RemoveTokenIfExists(appUrl); err != nil {
+	if err := token.RemoveTokenIfExists(appInfo); err != nil {
 		return err
 	}
 
-	if valid, err := isTokenValid(options, logger); err != nil {
+	if valid, err := isTokenValid(options, log); err != nil {
 		return err
 	} else if !valid {
 		return errors.New("failed to verify token")
@@ -468,8 +499,8 @@ func verifyTokenAtEdge(appUrl *url.URL, c *cli.Context, logger logger.Service) e
 }
 
 // isTokenValid makes a request to the origin and returns true if the response was not a 302.
-func isTokenValid(options *carrier.StartOptions, logger logger.Service) (bool, error) {
-	req, err := carrier.BuildAccessRequest(options, logger)
+func isTokenValid(options *carrier.StartOptions, log *zerolog.Logger) (bool, error) {
+	req, err := carrier.BuildAccessRequest(options, log)
 	if err != nil {
 		return false, errors.Wrap(err, "Could not create access request")
 	}

cmd/cloudflared/app_forward_service.go

@@ -2,8 +2,9 @@ package main
 
 import (
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/access"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/config"
+
+	"github.com/rs/zerolog"
 )
 
 // ForwardServiceType is used to identify what kind of overwatch service this is
@@ -15,12 +16,12 @@ const ForwardServiceType = "forward"
 type ForwarderService struct {
 	forwarder config.Forwarder
 	shutdown  chan struct{}
-	logger    logger.Service
+	log       *zerolog.Logger
 }
 
 // NewForwardService creates a new forwarder service
-func NewForwardService(f config.Forwarder, logger logger.Service) *ForwarderService {
-	return &ForwarderService{forwarder: f, shutdown: make(chan struct{}, 1), logger: logger}
+func NewForwardService(f config.Forwarder, log *zerolog.Logger) *ForwarderService {
+	return &ForwarderService{forwarder: f, shutdown: make(chan struct{}, 1), log: log}
 }
 
 // Name is used to figure out this service is related to the others (normally the addr it binds to)
@@ -46,5 +47,5 @@ func (s *ForwarderService) Shutdown() {
 
 // Run is the run loop that is started by the overwatch service
 func (s *ForwarderService) Run() error {
-	return access.StartForwarder(s.forwarder, s.shutdown, s.logger)
+	return access.StartForwarder(s.forwarder, s.shutdown, s.log)
 }

cmd/cloudflared/app_resolver_service.go

@@ -1,13 +1,20 @@
 package main
 
 import (
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/config"
 	"github.com/cloudflare/cloudflared/tunneldns"
+
+	"github.com/rs/zerolog"
 )
 
-// ResolverServiceType is used to identify what kind of overwatch service this is
-const ResolverServiceType = "resolver"
+const (
+	// ResolverServiceType is used to identify what kind of overwatch service this is
+	ResolverServiceType = "resolver"
+
+	LogFieldResolverAddress          = "resolverAddress"
+	LogFieldResolverPort             = "resolverPort"
+	LogFieldResolverMaxUpstreamConns = "resolverMaxUpstreamConns"
+)
 
 // ResolverService is used to wrap the tunneldns package's DNS over HTTP
 // into a service model for the overwatch package.
@@ -15,14 +22,14 @@ const ResolverServiceType = "resolver"
 type ResolverService struct {
 	resolver config.DNSResolver
 	shutdown chan struct{}
-	logger   logger.Service
+	log      *zerolog.Logger
 }
 
 // NewResolverService creates a new resolver service
-func NewResolverService(r config.DNSResolver, logger logger.Service) *ResolverService {
+func NewResolverService(r config.DNSResolver, log *zerolog.Logger) *ResolverService {
 	return &ResolverService{resolver: r,
 		shutdown: make(chan struct{}),
-		logger:   logger,
+		log:      log,
 	}
 }
 
@@ -51,7 +58,7 @@ func (s *ResolverService) Shutdown() {
 func (s *ResolverService) Run() error {
 	// create a listener
 	l, err := tunneldns.CreateListener(s.resolver.AddressOrDefault(), s.resolver.PortOrDefault(),
-		s.resolver.UpstreamsOrDefault(), s.resolver.BootstrapsOrDefault(), s.logger)
+		s.resolver.UpstreamsOrDefault(), s.resolver.BootstrapsOrDefault(), s.resolver.MaxUpstreamConnectionsOrDefault(), s.log)
 	if err != nil {
 		return err
 	}
@@ -60,14 +67,21 @@ func (s *ResolverService) Run() error {
 	readySignal := make(chan struct{})
 	err = l.Start(readySignal)
 	if err != nil {
-		l.Stop()
+		_ = l.Stop()
 		return err
 	}
 	<-readySignal
-	s.logger.Infof("start resolver on: %s:%d", s.resolver.AddressOrDefault(), s.resolver.PortOrDefault())
+
+	resolverLog := s.log.With().
+		Str(LogFieldResolverAddress, s.resolver.AddressOrDefault()).
+		Uint16(LogFieldResolverPort, s.resolver.PortOrDefault()).
+		Int(LogFieldResolverMaxUpstreamConns, s.resolver.MaxUpstreamConnectionsOrDefault()).
+		Logger()
+
+	resolverLog.Info().Msg("Starting resolver")
 
 	// wait for shutdown signal
 	<-s.shutdown
-	s.logger.Infof("shutdown on: %s:%d", s.resolver.AddressOrDefault(), s.resolver.PortOrDefault())
+	resolverLog.Info().Msg("Shutting down resolver")
 	return l.Stop()
 }

cmd/cloudflared/app_service.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/config"
 	"github.com/cloudflare/cloudflared/overwatch"
+
+	"github.com/rs/zerolog"
 )
 
 // AppService is the main service that runs when no command lines flags are passed to cloudflared
@@ -13,17 +14,17 @@ type AppService struct {
 	serviceManager   overwatch.Manager
 	shutdownC        chan struct{}
 	configUpdateChan chan config.Root
-	logger           logger.Service
+	log              *zerolog.Logger
 }
 
 // NewAppService creates a new AppService with needed supporting services
-func NewAppService(configManager config.Manager, serviceManager overwatch.Manager, shutdownC chan struct{}, logger logger.Service) *AppService {
+func NewAppService(configManager config.Manager, serviceManager overwatch.Manager, shutdownC chan struct{}, log *zerolog.Logger) *AppService {
 	return &AppService{
 		configManager:    configManager,
 		serviceManager:   serviceManager,
 		shutdownC:        shutdownC,
 		configUpdateChan: make(chan config.Root),
-		logger:           logger,
+		log:              log,
 	}
 }
 
@@ -37,6 +38,7 @@ func (s *AppService) Run() error {
 func (s *AppService) Shutdown() error {
 	s.configManager.Shutdown()
 	s.shutdownC <- struct{}{}
+
 	return nil
 }
 
@@ -66,14 +68,14 @@ func (s *AppService) handleConfigUpdate(c config.Root) {
 	// handle the client forward listeners
 	activeServices := map[string]struct{}{}
 	for _, f := range c.Forwarders {
-		service := NewForwardService(f, s.logger)
+		service := NewForwardService(f, s.log)
 		s.serviceManager.Add(service)
 		activeServices[service.Name()] = struct{}{}
 	}
 
 	// handle resolver changes
 	if c.Resolver.Enabled {
-		service := NewResolverService(c.Resolver, s.logger)
+		service := NewResolverService(c.Resolver, s.log)
 		s.serviceManager.Add(service)
 		activeServices[service.Name()] = struct{}{}
 

cmd/cloudflared/buildinfo/build_info.go

@@ -1,9 +1,9 @@
 package buildinfo
 
 import (
+	"github.com/rs/zerolog"
+	"fmt"
 	"runtime"
-
-	"github.com/cloudflare/cloudflared/logger"
 )
 
 type BuildInfo struct {
@@ -22,7 +22,11 @@ func GetBuildInfo(cloudflaredVersion string) *BuildInfo {
 	}
 }
 
-func (bi *BuildInfo) Log(logger logger.Service) {
-	logger.Infof("Version %s", bi.CloudflaredVersion)
-	logger.Infof("GOOS: %s, GOVersion: %s, GoArch: %s", bi.GoOS, bi.GoVersion, bi.GoArch)
+func (bi *BuildInfo) Log(log *zerolog.Logger) {
+	log.Info().Msgf("Version %s", bi.CloudflaredVersion)
+	log.Info().Msgf("GOOS: %s, GOVersion: %s, GoArch: %s", bi.GoOS, bi.GoVersion, bi.GoArch)
+}
+
+func (bi *BuildInfo) OSArch() string {
+	return fmt.Sprintf("%s_%s", bi.GoOS, bi.GoArch)
 }

cmd/cloudflared/cliutil/deprecated.go

@@ -0,0 +1,21 @@
+package cliutil
+
+import (
+	"fmt"
+
+	"github.com/urfave/cli/v2"
+)
+
+func RemovedCommand(name string) *cli.Command {
+	return &cli.Command{
+		Name: name,
+		Action: func(context *cli.Context) error {
+			return cli.Exit(
+				fmt.Sprintf("%s command is no longer supported by cloudflared. Consult Argo Tunnel documentation for possible alternative solutions.", name),
+				-1,
+			)
+		},
+		Description: fmt.Sprintf("%s is deprecated", name),
+		Hidden: true,
+	}
+}

cmd/cloudflared/cliutil/errors.go

@@ -2,10 +2,7 @@ package cliutil
 
 import (
 	"fmt"
-	"log"
 
-	"github.com/cloudflare/cloudflared/logger"
-	"github.com/pkg/errors"
 	"github.com/urfave/cli/v2"
 )
 
@@ -25,31 +22,17 @@ func UsageError(format string, args ...interface{}) error {
 }
 
 // Ensures exit with error code if actionFunc returns an error
-func ErrorHandler(actionFunc cli.ActionFunc) cli.ActionFunc {
+func WithErrorHandler(actionFunc cli.ActionFunc) cli.ActionFunc {
 	return func(ctx *cli.Context) error {
 		err := actionFunc(ctx)
 		if err != nil {
 			if _, ok := err.(usageError); ok {
 				msg := fmt.Sprintf("%s\nSee 'cloudflared %s --help'.", err.Error(), ctx.Command.FullName())
-				return cli.Exit(msg, -1)
+				err = cli.Exit(msg, -1)
+			} else if _, ok := err.(cli.ExitCoder); !ok {
+				err = cli.Exit(err.Error(), 1)
 			}
-			// os.Exits with error code if err is cli.ExitCoder or cli.MultiError
-			cli.HandleExitCoder(err)
-			err = cli.Exit(err.Error(), 1)
 		}
-		logger.SharedWriteManager.Shutdown()
 		return err
 	}
 }
-
-// PrintLoggerSetupError returns an error to stdout to notify when a logger can't start
-func PrintLoggerSetupError(msg string, err error) error {
-	l, le := logger.New()
-	if le != nil {
-		log.Printf("%s: %s", msg, err)
-	} else {
-		l.Errorf("%s: %s", msg, err)
-	}
-
-	return errors.Wrap(err, msg)
-}

cmd/cloudflared/cliutil/handler.go

@@ -0,0 +1,57 @@
+package cliutil
+
+import (
+	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v2/altsrc"
+
+	"github.com/cloudflare/cloudflared/config"
+	"github.com/cloudflare/cloudflared/logger"
+)
+
+func Action(actionFunc cli.ActionFunc) cli.ActionFunc {
+	return WithErrorHandler(actionFunc)
+}
+
+func ConfiguredAction(actionFunc cli.ActionFunc) cli.ActionFunc {
+	return WithErrorHandler(func(c *cli.Context) error {
+		if err := setFlagsFromConfigFile(c); err != nil {
+			return err
+		}
+		return actionFunc(c)
+	})
+}
+
+func setFlagsFromConfigFile(c *cli.Context) error {
+	const errorExitCode = 1
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
+	inputSource, err := config.ReadConfigFile(c, log)
+	if err != nil {
+		if err == config.ErrNoConfigFile {
+			return nil
+		}
+		return cli.Exit(err, errorExitCode)
+	}
+
+	if err := applyConfig(c, inputSource); err != nil {
+		return cli.Exit(err, errorExitCode)
+	}
+	return nil
+}
+
+func applyConfig(c *cli.Context, inputSource altsrc.InputSourceContext) error {
+	for _, context := range c.Lineage() {
+		if context.Command == nil {
+			// we've reached the placeholder root context not associated with the app
+			break
+		}
+		targetFlags := context.Command.Flags
+		if context.Command.Name == "" {
+			// commands that define child subcommands are executed as if they were an app
+			targetFlags = context.App.Flags
+		}
+		if err := altsrc.ApplyInputSourceValues(context, inputSource, targetFlags); err != nil {
+			return err
+		}
+	}
+	return nil
+}

cmd/cloudflared/config/configuration.go

@@ -1,201 +0,0 @@
-package config
-
-import (
-	"errors"
-	"os"
-	"path/filepath"
-	"runtime"
-
-	homedir "github.com/mitchellh/go-homedir"
-	"github.com/urfave/cli/v2"
-	"github.com/urfave/cli/v2/altsrc"
-	"gopkg.in/yaml.v2"
-
-	"github.com/cloudflare/cloudflared/validation"
-)
-
-var (
-	// DefaultConfigFiles is the file names from which we attempt to read configuration.
-	DefaultConfigFiles = []string{"config.yml", "config.yaml"}
-
-	// DefaultUnixConfigLocation is the primary location to find a config file
-	DefaultUnixConfigLocation = "/usr/local/etc/cloudflared"
-
-	// DefaultUnixLogLocation is the primary location to find log files
-	DefaultUnixLogLocation = "/var/log/cloudflared"
-
-	// Launchd doesn't set root env variables, so there is default
-	// Windows default config dir was ~/cloudflare-warp in documentation; let's keep it compatible
-	defaultUserConfigDirs = []string{"~/.cloudflared", "~/.cloudflare-warp", "~/cloudflare-warp"}
-	defaultNixConfigDirs  = []string{"/etc/cloudflared", DefaultUnixConfigLocation}
-)
-
-const DefaultCredentialFile = "cert.pem"
-
-// DefaultConfigDirectory returns the default directory of the config file
-func DefaultConfigDirectory() string {
-	if runtime.GOOS == "windows" {
-		path := os.Getenv("CFDPATH")
-		if path == "" {
-			path = filepath.Join(os.Getenv("ProgramFiles(x86)"), "cloudflared")
-			if _, err := os.Stat(path); os.IsNotExist(err) { //doesn't exist, so return an empty failure string
-				return ""
-			}
-		}
-		return path
-	}
-	return DefaultUnixConfigLocation
-}
-
-// DefaultLogDirectory returns the default directory for log files
-func DefaultLogDirectory() string {
-	if runtime.GOOS == "windows" {
-		return DefaultConfigDirectory()
-	}
-	return DefaultUnixLogLocation
-}
-
-// DefaultConfigPath returns the default location of a config file
-func DefaultConfigPath() string {
-	dir := DefaultConfigDirectory()
-	if dir == "" {
-		return DefaultConfigFiles[0]
-	}
-	return filepath.Join(dir, DefaultConfigFiles[0])
-}
-
-// DefaultConfigSearchDirectories returns the default folder locations of the config
-func DefaultConfigSearchDirectories() []string {
-	dirs := make([]string, len(defaultUserConfigDirs))
-	copy(dirs, defaultUserConfigDirs)
-	if runtime.GOOS != "windows" {
-		dirs = append(dirs, defaultNixConfigDirs...)
-	}
-	return dirs
-}
-
-// FileExists checks to see if a file exist at the provided path.
-func FileExists(path string) (bool, error) {
-	f, err := os.Open(path)
-	if err != nil {
-		if os.IsNotExist(err) {
-			// ignore missing files
-			return false, nil
-		}
-		return false, err
-	}
-	f.Close()
-	return true, nil
-}
-
-// FindInputSourceContext pulls the input source from the config flag.
-func FindInputSourceContext(context *cli.Context) (altsrc.InputSourceContext, error) {
-	if context.String("config") != "" {
-		return altsrc.NewYamlSourceFromFile(context.String("config"))
-	}
-	return nil, nil
-}
-
-// FindDefaultConfigPath returns the first path that contains a config file.
-// If none of the combination of DefaultConfigSearchDirectories() and DefaultConfigFiles
-// contains a config file, return empty string.
-func FindDefaultConfigPath() string {
-	for _, configDir := range DefaultConfigSearchDirectories() {
-		for _, configFile := range DefaultConfigFiles {
-			dirPath, err := homedir.Expand(configDir)
-			if err != nil {
-				continue
-			}
-			path := filepath.Join(dirPath, configFile)
-			if ok, _ := FileExists(path); ok {
-				return path
-			}
-		}
-	}
-	return ""
-}
-
-// FindOrCreateConfigPath returns the first path that contains a config file
-// or creates one in the primary default path if it doesn't exist
-func FindOrCreateConfigPath() string {
-	path := FindDefaultConfigPath()
-
-	if path == "" {
-		// create the default directory if it doesn't exist
-		path = DefaultConfigPath()
-		if err := os.MkdirAll(filepath.Dir(path), os.ModePerm); err != nil {
-			return ""
-		}
-
-		// write a new config file out
-		file, err := os.Create(path)
-		if err != nil {
-			return ""
-		}
-		defer file.Close()
-
-		logDir := DefaultLogDirectory()
-		os.MkdirAll(logDir, os.ModePerm) //try and create it. Doesn't matter if it succeed or not, only byproduct will be no logs
-
-		c := Root{
-			LogDirectory: logDir,
-		}
-		if err := yaml.NewEncoder(file).Encode(&c); err != nil {
-			return ""
-		}
-	}
-
-	return path
-}
-
-// FindLogSettings gets the log directory and level from the config file
-func FindLogSettings() (string, string) {
-	configPath := FindOrCreateConfigPath()
-	defaultDirectory := DefaultLogDirectory()
-	defaultLevel := "info"
-
-	file, err := os.Open(configPath)
-	if err != nil {
-		return defaultDirectory, defaultLevel
-	}
-	defer file.Close()
-
-	var config Root
-	if err := yaml.NewDecoder(file).Decode(&config); err != nil {
-		return defaultDirectory, defaultLevel
-	}
-
-	directory := defaultDirectory
-	if config.LogDirectory != "" {
-		directory = config.LogDirectory
-	}
-
-	level := defaultLevel
-	if config.LogLevel != "" {
-		level = config.LogLevel
-	}
-	return directory, level
-}
-
-// ValidateUnixSocket ensures --unix-socket param is used exclusively
-// i.e. it fails if a user specifies both --url and --unix-socket
-func ValidateUnixSocket(c *cli.Context) (string, error) {
-	if c.IsSet("unix-socket") && (c.IsSet("url") || c.NArg() > 0) {
-		return "", errors.New("--unix-socket must be used exclusivly.")
-	}
-	return c.String("unix-socket"), nil
-}
-
-// ValidateUrl will validate url flag correctness. It can be either from --url or argument
-// Notice ValidateUnixSocket, it will enforce --unix-socket is not used with --url or argument
-func ValidateUrl(c *cli.Context, allowFromArgs bool) (string, error) {
-	var url = c.String("url")
-	if allowFromArgs && c.NArg() > 0 {
-		if c.IsSet("url") {
-			return "", errors.New("Specified origin urls using both --url and argument. Decide which one you want, I can only support one.")
-		}
-		url = c.Args().Get(0)
-	}
-	validUrl, err := validation.ValidateUrl(url)
-	return validUrl, err
-}

cmd/cloudflared/generic_service.go

@@ -8,6 +8,6 @@ import (
 	cli "github.com/urfave/cli/v2"
 )
 
-func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
+func runApp(app *cli.App, graceShutdownC chan struct{}) {
 	app.Run(os.Args)
 }

cmd/cloudflared/linux_service.go

@@ -8,26 +8,34 @@ import (
 	"path/filepath"
 
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/tunnel"
+	"github.com/cloudflare/cloudflared/config"
 	"github.com/cloudflare/cloudflared/logger"
-	"github.com/pkg/errors"
-	cli "github.com/urfave/cli/v2"
+
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v2"
 )
 
-func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
+func runApp(app *cli.App, graceShutdownC chan struct{}) {
 	app.Commands = append(app.Commands, &cli.Command{
 		Name:  "service",
 		Usage: "Manages the Argo Tunnel system service",
 		Subcommands: []*cli.Command{
-			&cli.Command{
+			{
 				Name:   "install",
 				Usage:  "Install Argo Tunnel as a system service",
-				Action: cliutil.ErrorHandler(installLinuxService),
+				Action: cliutil.ConfiguredAction(installLinuxService),
+				Flags: []cli.Flag{
+					&cli.BoolFlag{
+						Name:  "legacy",
+						Usage: "Generate service file for non-named tunnels",
+					},
+				},
 			},
-			&cli.Command{
+			{
 				Name:   "uninstall",
 				Usage:  "Uninstall the Argo Tunnel service",
-				Action: cliutil.ErrorHandler(uninstallLinuxService),
+				Action: cliutil.ConfiguredAction(uninstallLinuxService),
 			},
 		},
 	})
@@ -40,6 +48,7 @@ const (
 	serviceConfigDir      = "/etc/cloudflared"
 	serviceConfigFile     = "config.yml"
 	serviceCredentialFile = "cert.pem"
+	serviceConfigPath     = serviceConfigDir + "/" + serviceConfigFile
 )
 
 var systemdTemplates = []ServiceTemplate{
@@ -52,7 +61,7 @@ After=network.target
 [Service]
 TimeoutStartSec=0
 Type=notify
-ExecStart={{ .Path }} --config /etc/cloudflared/config.yml --origincert /etc/cloudflared/cert.pem --no-autoupdate
+ExecStart={{ .Path }} --config /etc/cloudflared/config.yml --no-autoupdate{{ range .ExtraArgs }} {{ . }}{{ end }}
 Restart=on-failure
 RestartSec=5s
 
@@ -102,7 +111,7 @@ var sysvTemplate = ServiceTemplate{
 # Description:       Argo Tunnel agent
 ### END INIT INFO
 name=$(basename $(readlink -f $0))
-cmd="{{.Path}} --config /etc/cloudflared/config.yml --origincert /etc/cloudflared/cert.pem --pidfile /var/run/$name.pid --autoupdate-freq 24h0m0s"
+cmd="{{.Path}} --config /etc/cloudflared/config.yml --pidfile /var/run/$name.pid --autoupdate-freq 24h0m0s{{ range .ExtraArgs }} {{ . }}{{ end }}"
 pid_file="/var/run/$name.pid"
 stdout_log="/var/log/$name.log"
 stderr_log="/var/log/$name.err"
@@ -181,11 +190,7 @@ func isSystemd() bool {
 	return false
 }
 
-func copyUserConfiguration(userConfigDir, userConfigFile, userCredentialFile string, logger logger.Service) error {
-	if err := ensureConfigDirExists(serviceConfigDir); err != nil {
-		return err
-	}
-
+func copyUserConfiguration(userConfigDir, userConfigFile, userCredentialFile string, log *zerolog.Logger) error {
 	srcCredentialPath := filepath.Join(userConfigDir, userCredentialFile)
 	destCredentialPath := filepath.Join(serviceConfigDir, serviceCredentialFile)
 	if srcCredentialPath != destCredentialPath {
@@ -200,71 +205,108 @@ func copyUserConfiguration(userConfigDir, userConfigFile, userCredentialFile str
 		if err := copyConfig(srcConfigPath, destConfigPath); err != nil {
 			return err
 		}
-		logger.Infof("Copied %s to %s", srcConfigPath, destConfigPath)
+		log.Info().Msgf("Copied %s to %s", srcConfigPath, destConfigPath)
 	}
 
 	return nil
 }
 
 func installLinuxService(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	etPath, err := os.Executable()
 	if err != nil {
 		return fmt.Errorf("error determining executable path: %v", err)
 	}
-	templateArgs := ServiceTemplateArgs{Path: etPath}
+	templateArgs := ServiceTemplateArgs{
+		Path: etPath,
+	}
 
-	userConfigDir := filepath.Dir(c.String("config"))
-	userConfigFile := filepath.Base(c.String("config"))
-	userCredentialFile := config.DefaultCredentialFile
-	if err = copyUserConfiguration(userConfigDir, userConfigFile, userCredentialFile, logger); err != nil {
-		logger.Errorf("Failed to copy user configuration: %s. Before running the service, ensure that %s contains two files, %s and %s", err,
-			serviceConfigDir, serviceCredentialFile, serviceConfigFile)
+	if err := ensureConfigDirExists(serviceConfigDir); err != nil {
 		return err
 	}
+	if c.Bool("legacy") {
+		userConfigDir := filepath.Dir(c.String("config"))
+		userConfigFile := filepath.Base(c.String("config"))
+		userCredentialFile := config.DefaultCredentialFile
+		if err = copyUserConfiguration(userConfigDir, userConfigFile, userCredentialFile, log); err != nil {
+			log.Err(err).Msgf("Failed to copy user configuration. Before running the service, ensure that %s contains two files, %s and %s",
+				serviceConfigDir, serviceCredentialFile, serviceConfigFile)
+			return err
+		}
+		templateArgs.ExtraArgs = []string{
+			"--origincert", serviceConfigDir + "/" + serviceCredentialFile,
+		}
+	} else {
+		src, err := config.ReadConfigFile(c, log)
+		if err != nil {
+			return err
+		}
+
+		// can't use context because this command doesn't define "credentials-file" flag
+		configPresent := func(s string) bool {
+			val, err := src.String(s)
+			return err == nil && val != ""
+		}
+		if src.TunnelID == "" || !configPresent(tunnel.CredFileFlag) {
+			return fmt.Errorf(`Configuration file %s must contain entries for the tunnel to run and its associated credentials:
+tunnel: TUNNEL-UUID
+credentials-file: CREDENTIALS-FILE
+`, src.Source())
+		}
+		if src.Source() != serviceConfigPath {
+			if exists, err := config.FileExists(serviceConfigPath); err != nil || exists {
+				return fmt.Errorf("Possible conflicting configuration in %[1]s and %[2]s. Either remove %[2]s or run `cloudflared --config %[2]s service install`", src.Source(), serviceConfigPath)
+			}
+
+			if err := copyFile(src.Source(), serviceConfigPath); err != nil {
+				return fmt.Errorf("failed to copy %s to %s: %w", src.Source(), serviceConfigPath, err)
+			}
+		}
+
+		templateArgs.ExtraArgs = []string{
+			"tunnel", "run",
+		}
+	}
 
 	switch {
 	case isSystemd():
-		logger.Infof("Using Systemd")
-		return installSystemd(&templateArgs, logger)
+		log.Info().Msgf("Using Systemd")
+		return installSystemd(&templateArgs, log)
 	default:
-		logger.Infof("Using Sysv")
-		return installSysv(&templateArgs, logger)
+		log.Info().Msgf("Using SysV")
+		return installSysv(&templateArgs, log)
 	}
 }
 
-func installSystemd(templateArgs *ServiceTemplateArgs, logger logger.Service) error {
+func installSystemd(templateArgs *ServiceTemplateArgs, log *zerolog.Logger) error {
 	for _, serviceTemplate := range systemdTemplates {
 		err := serviceTemplate.Generate(templateArgs)
 		if err != nil {
-			logger.Errorf("error generating service template: %s", err)
+			log.Err(err).Msg("error generating service template")
 			return err
 		}
 	}
 	if err := runCommand("systemctl", "enable", "cloudflared.service"); err != nil {
-		logger.Errorf("systemctl enable cloudflared.service error: %s", err)
+		log.Err(err).Msg("systemctl enable cloudflared.service error")
 		return err
 	}
 	if err := runCommand("systemctl", "start", "cloudflared-update.timer"); err != nil {
-		logger.Errorf("systemctl start cloudflared-update.timer error: %s", err)
+		log.Err(err).Msg("systemctl start cloudflared-update.timer error")
 		return err
 	}
-	logger.Infof("systemctl daemon-reload")
+	log.Info().Msg("systemctl daemon-reload")
 	return runCommand("systemctl", "daemon-reload")
 }
 
-func installSysv(templateArgs *ServiceTemplateArgs, logger logger.Service) error {
+func installSysv(templateArgs *ServiceTemplateArgs, log *zerolog.Logger) error {
 	confPath, err := sysvTemplate.ResolvePath()
 	if err != nil {
-		logger.Errorf("error resolving system path: %s", err)
+		log.Err(err).Msg("error resolving system path")
 		return err
 	}
 	if err := sysvTemplate.Generate(templateArgs); err != nil {
-		logger.Errorf("error generating system template: %s", err)
+		log.Err(err).Msg("error generating system template")
 		return err
 	}
 	for _, i := range [...]string{"2", "3", "4", "5"} {
@@ -281,43 +323,40 @@ func installSysv(templateArgs *ServiceTemplateArgs, logger logger.Service) error
 }
 
 func uninstallLinuxService(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	switch {
 	case isSystemd():
-		logger.Infof("Using Systemd")
-		return uninstallSystemd(logger)
+		log.Info().Msg("Using Systemd")
+		return uninstallSystemd(log)
 	default:
-		logger.Infof("Using Sysv")
-		return uninstallSysv(logger)
+		log.Info().Msg("Using SysV")
+		return uninstallSysv(log)
 	}
 }
 
-func uninstallSystemd(logger logger.Service) error {
+func uninstallSystemd(log *zerolog.Logger) error {
 	if err := runCommand("systemctl", "disable", "cloudflared.service"); err != nil {
-		logger.Errorf("systemctl disable cloudflared.service error: %s", err)
+		log.Err(err).Msg("systemctl disable cloudflared.service error")
 		return err
 	}
 	if err := runCommand("systemctl", "stop", "cloudflared-update.timer"); err != nil {
-		logger.Errorf("systemctl stop cloudflared-update.timer error: %s", err)
+		log.Err(err).Msg("systemctl stop cloudflared-update.timer error")
 		return err
 	}
 	for _, serviceTemplate := range systemdTemplates {
 		if err := serviceTemplate.Remove(); err != nil {
-			logger.Errorf("error removing service template: %s", err)
+			log.Err(err).Msg("error removing service template")
 			return err
 		}
 	}
-	logger.Infof("Successfully uninstall cloudflared service")
+	log.Info().Msgf("Successfully uninstalled cloudflared service from systemd")
 	return nil
 }
 
-func uninstallSysv(logger logger.Service) error {
+func uninstallSysv(log *zerolog.Logger) error {
 	if err := sysvTemplate.Remove(); err != nil {
-		logger.Errorf("error removing service template: %s", err)
+		log.Err(err).Msg("error removing service template")
 		return err
 	}
 	for _, i := range [...]string{"2", "3", "4", "5"} {
@@ -330,6 +369,6 @@ func uninstallSysv(logger logger.Service) error {
 			continue
 		}
 	}
-	logger.Infof("Successfully uninstall cloudflared service")
+	log.Info().Msgf("Successfully uninstalled cloudflared service from sysv")
 	return nil
 }

cmd/cloudflared/macos_service.go

@@ -6,18 +6,18 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/urfave/cli/v2"
-
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
 	"github.com/cloudflare/cloudflared/logger"
+
 	"github.com/pkg/errors"
+	"github.com/urfave/cli/v2"
 )
 
 const (
 	launchdIdentifier = "com.cloudflare.cloudflared"
 )
 
-func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
+func runApp(app *cli.App, graceShutdownC chan struct{}) {
 	app.Commands = append(app.Commands, &cli.Command{
 		Name:  "service",
 		Usage: "Manages the Argo Tunnel launch agent",
@@ -25,16 +25,16 @@ func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
 			{
 				Name:   "install",
 				Usage:  "Install Argo Tunnel as an user launch agent",
-				Action: cliutil.ErrorHandler(installLaunchd),
+				Action: cliutil.ConfiguredAction(installLaunchd),
 			},
 			{
 				Name:   "uninstall",
 				Usage:  "Uninstall the Argo Tunnel launch agent",
-				Action: cliutil.ErrorHandler(uninstallLaunchd),
+				Action: cliutil.ConfiguredAction(uninstallLaunchd),
 			},
 		},
 	})
-	app.Run(os.Args)
+	_ = app.Run(os.Args)
 }
 
 func newLaunchdTemplate(installPath, stdoutPath, stderrPath string) *ServiceTemplate {
@@ -107,71 +107,61 @@ func stderrPath() (string, error) {
 }
 
 func installLaunchd(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	if isRootUser() {
-		logger.Infof("Installing Argo Tunnel client as a system launch daemon. " +
+		log.Info().Msg("Installing Argo Tunnel client as a system launch daemon. " +
 			"Argo Tunnel client will run at boot")
 	} else {
-		logger.Infof("Installing Argo Tunnel client as an user launch agent. " +
+		log.Info().Msg("Installing Argo Tunnel client as an user launch agent. " +
 			"Note that Argo Tunnel client will only run when the user is logged in. " +
 			"If you want to run Argo Tunnel client at boot, install with root permission. " +
 			"For more information, visit https://developers.cloudflare.com/argo-tunnel/reference/service/")
 	}
 	etPath, err := os.Executable()
 	if err != nil {
-		logger.Errorf("Error determining executable path: %s", err)
+		log.Err(err).Msg("Error determining executable path")
 		return fmt.Errorf("Error determining executable path: %v", err)
 	}
 	installPath, err := installPath()
 	if err != nil {
-		logger.Errorf("Error determining install path: %s", err)
+		log.Err(err).Msg("Error determining install path")
 		return errors.Wrap(err, "Error determining install path")
 	}
 	stdoutPath, err := stdoutPath()
 	if err != nil {
-		logger.Errorf("error determining stdout path: %s", err)
+		log.Err(err).Msg("error determining stdout path")
 		return errors.Wrap(err, "error determining stdout path")
 	}
 	stderrPath, err := stderrPath()
 	if err != nil {
-		logger.Errorf("error determining stderr path: %s", err)
+		log.Err(err).Msg("error determining stderr path")
 		return errors.Wrap(err, "error determining stderr path")
 	}
 	launchdTemplate := newLaunchdTemplate(installPath, stdoutPath, stderrPath)
-	if err != nil {
-		logger.Errorf("error creating launchd template: %s", err)
-		return errors.Wrap(err, "error creating launchd template")
-	}
 	templateArgs := ServiceTemplateArgs{Path: etPath}
 	err = launchdTemplate.Generate(&templateArgs)
 	if err != nil {
-		logger.Errorf("error generating launchd template: %s", err)
+		log.Err(err).Msg("error generating launchd template")
 		return err
 	}
 	plistPath, err := launchdTemplate.ResolvePath()
 	if err != nil {
-		logger.Errorf("error resolving launchd template path: %s", err)
+		log.Err(err).Msg("error resolving launchd template path")
 		return err
 	}
 
-	logger.Infof("Outputs are logged to %s and %s", stderrPath, stdoutPath)
+	log.Info().Msgf("Outputs are logged to %s and %s", stderrPath, stdoutPath)
 	return runCommand("launchctl", "load", plistPath)
 }
 
 func uninstallLaunchd(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	if isRootUser() {
-		logger.Infof("Uninstalling Argo Tunnel as a system launch daemon")
+		log.Info().Msg("Uninstalling Argo Tunnel as a system launch daemon")
 	} else {
-		logger.Infof("Uninstalling Argo Tunnel as an user launch agent")
+		log.Info().Msg("Uninstalling Argo Tunnel as an user launch agent")
 	}
 	installPath, err := installPath()
 	if err != nil {
@@ -186,20 +176,17 @@ func uninstallLaunchd(c *cli.Context) error {
 		return errors.Wrap(err, "error determining stderr path")
 	}
 	launchdTemplate := newLaunchdTemplate(installPath, stdoutPath, stderrPath)
-	if err != nil {
-		return errors.Wrap(err, "error creating launchd template")
-	}
 	plistPath, err := launchdTemplate.ResolvePath()
 	if err != nil {
-		logger.Errorf("error resolving launchd template path: %s", err)
+		log.Err(err).Msg("error resolving launchd template path")
 		return err
 	}
 	err = runCommand("launchctl", "unload", plistPath)
 	if err != nil {
-		logger.Errorf("error unloading: %s", err)
+		log.Err(err).Msg("error unloading")
 		return err
 	}
 
-	logger.Infof("Outputs are logged to %s and %s", stderrPath, stdoutPath)
+	log.Info().Msgf("Outputs are logged to %s and %s", stderrPath, stdoutPath)
 	return launchdTemplate.Remove()
 }

cmd/cloudflared/main.go

@@ -2,24 +2,25 @@ package main
 
 import (
 	"fmt"
+	"math/rand"
 	"strings"
 	"time"
 
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/access"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/proxydns"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/tunnel"
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/updater"
-	log "github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/config"
+	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/metrics"
 	"github.com/cloudflare/cloudflared/overwatch"
 	"github.com/cloudflare/cloudflared/watcher"
 
-	raven "github.com/getsentry/raven-go"
-	homedir "github.com/mitchellh/go-homedir"
-	cli "github.com/urfave/cli/v2"
-
+	"github.com/getsentry/raven-go"
+	"github.com/mitchellh/go-homedir"
 	"github.com/pkg/errors"
+	"github.com/urfave/cli/v2"
 )
 
 const (
@@ -43,13 +44,11 @@ var (
 )
 
 func main() {
+	rand.Seed(time.Now().UnixNano())
 	metrics.RegisterBuildInfo(BuildTime, Version)
 	raven.SetRelease(Version)
 
-	// Force shutdown channel used by the app. When closed, app must terminate.
-	// Windows service manager closes this channel when it receives shutdown command.
-	shutdownC := make(chan struct{})
-	// Graceful shutdown channel used by the app. When closed, app must terminate.
+	// Graceful shutdown channel used by the app. When closed, app must terminate gracefully.
 	// Windows service manager closes this channel when it receives stop command.
 	graceShutdownC := make(chan struct{})
 
@@ -73,29 +72,51 @@ func main() {
 	app.Version = fmt.Sprintf("%s (built %s)", Version, BuildTime)
 	app.Description = `cloudflared connects your machine or user identity to Cloudflare's global network.
 	You can use it to authenticate a session to reach an API behind Access, route web traffic to this machine,
-	and configure access control.`
+	and configure access control.
+
+	See https://developers.cloudflare.com/argo-tunnel/ for more in-depth documentation.`
 	app.Flags = flags()
-	app.Action = action(Version, shutdownC, graceShutdownC)
-	app.Before = tunnel.Before
+	app.Action = action(graceShutdownC)
 	app.Commands = commands(cli.ShowVersion)
 
-	tunnel.Init(Version, shutdownC, graceShutdownC) // we need this to support the tunnel sub command...
-	access.Init(shutdownC, graceShutdownC)
-	runApp(app, shutdownC, graceShutdownC)
+	tunnel.Init(Version, graceShutdownC) // we need this to support the tunnel sub command...
+	access.Init(graceShutdownC)
+	updater.Init(Version)
+	runApp(app, graceShutdownC)
 }
 
 func commands(version func(c *cli.Context)) []*cli.Command {
 	cmds := []*cli.Command{
 		{
-			Name:      "update",
-			Action:    cliutil.ErrorHandler(updater.Update),
-			Usage:     "Update the agent if a new version exists",
-			ArgsUsage: " ",
+			Name:   "update",
+			Action: cliutil.ConfiguredAction(updater.Update),
+			Usage:  "Update the agent if a new version exists",
+			Flags: []cli.Flag{
+				&cli.BoolFlag{
+					Name:  "beta",
+					Usage: "specify if you wish to update to the latest beta version",
+				},
+				&cli.BoolFlag{
+					Name:   "force",
+					Usage:  "specify if you wish to force an upgrade to the latest version regardless of the current version",
+					Hidden: true,
+				},
+				&cli.BoolFlag{
+					Name:   "staging",
+					Usage:  "specify if you wish to use the staging url for updating",
+					Hidden: true,
+				},
+				&cli.StringFlag{
+					Name:   "version",
+					Usage:  "specify a version you wish to upgrade or downgrade to",
+					Hidden: false,
+				},
+			},
 			Description: `Looks for a new version on the official download server.
 If a new version exists, updates the agent binary and quits.
 Otherwise, does nothing.
 
-To determine if an update happened in a script, check for error code 64.`,
+To determine if an update happened in a script, check for error code 11.`,
 		},
 		{
 			Name: "version",
@@ -108,6 +129,7 @@ To determine if an update happened in a script, check for error code 64.`,
 		},
 	}
 	cmds = append(cmds, tunnel.Commands()...)
+	cmds = append(cmds, proxydns.Command(false))
 	cmds = append(cmds, access.Commands()...)
 	return cmds
 }
@@ -121,24 +143,20 @@ func isEmptyInvocation(c *cli.Context) bool {
 	return c.NArg() == 0 && c.NumFlags() == 0
 }
 
-func action(version string, shutdownC, graceShutdownC chan struct{}) cli.ActionFunc {
-	return func(c *cli.Context) (err error) {
+func action(graceShutdownC chan struct{}) cli.ActionFunc {
+	return cliutil.ConfiguredAction(func(c *cli.Context) (err error) {
 		if isEmptyInvocation(c) {
-			return handleServiceMode(shutdownC)
+			return handleServiceMode(c, graceShutdownC)
 		}
 		tags := make(map[string]string)
 		tags["hostname"] = c.String("hostname")
 		raven.SetTagsContext(tags)
 		raven.CapturePanic(func() { err = tunnel.TunnelCommand(c) }, nil)
-		exitCode := 0
 		if err != nil {
-			handleError(err)
-			exitCode = 1
+			captureError(err)
 		}
-		// we already handle error printing, so we pass an empty string so we
-		// don't have to print again.
-		return cli.Exit("", exitCode)
-	}
+		return err
+	})
 }
 
 func userHomeDir() (string, error) {
@@ -154,7 +172,7 @@ func userHomeDir() (string, error) {
 }
 
 // In order to keep the amount of noise sent to Sentry low, typical network errors can be filtered out here by a substring match.
-func handleError(err error) {
+func captureError(err error) {
 	errorMessage := err.Error()
 	for _, ignoredErrorMessage := range ignoredErrors {
 		if strings.Contains(errorMessage, ignoredErrorMessage) {
@@ -165,41 +183,34 @@ func handleError(err error) {
 }
 
 // cloudflared was started without any flags
-func handleServiceMode(shutdownC chan struct{}) error {
-	defer log.SharedWriteManager.Shutdown()
-	logDirectory, logLevel := config.FindLogSettings()
-
-	logger, err := log.New(log.DefaultFile(logDirectory), log.LogLevelString(logLevel))
-	if err != nil {
-		return cliutil.PrintLoggerSetupError("error setting up logger", err)
-	}
-	logger.Infof("logging to directory: %s", logDirectory)
+func handleServiceMode(c *cli.Context, shutdownC chan struct{}) error {
+	log := logger.CreateLoggerFromContext(c, logger.DisableTerminalLog)
 
 	// start the main run loop that reads from the config file
 	f, err := watcher.NewFile()
 	if err != nil {
-		logger.Errorf("Cannot load config file: %s", err)
+		log.Err(err).Msg("Cannot load config file")
 		return err
 	}
 
 	configPath := config.FindOrCreateConfigPath()
-	configManager, err := config.NewFileManager(f, configPath, logger)
+	configManager, err := config.NewFileManager(f, configPath, log)
 	if err != nil {
-		logger.Errorf("Cannot setup config file for monitoring: %s", err)
+		log.Err(err).Msg("Cannot setup config file for monitoring")
 		return err
 	}
-	logger.Infof("monitoring config file at: %s", configPath)
+	log.Info().Msgf("monitoring config file at: %s", configPath)
 
 	serviceCallback := func(t string, name string, err error) {
 		if err != nil {
-			logger.Errorf("%s service: %s encountered an error: %s", t, name, err)
+			log.Err(err).Msgf("%s service: %s encountered an error", t, name)
 		}
 	}
 	serviceManager := overwatch.NewAppManager(serviceCallback)
 
-	appService := NewAppService(configManager, serviceManager, shutdownC, logger)
+	appService := NewAppService(configManager, serviceManager, shutdownC, log)
 	if err := appService.Run(); err != nil {
-		logger.Errorf("Failed to start app service: %s", err)
+		log.Err(err).Msg("Failed to start app service")
 		return err
 	}
 	return nil

cmd/cloudflared/path/path.go

@@ -1,30 +0,0 @@
-package path
-
-import (
-	"fmt"
-	"net/url"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/mitchellh/go-homedir"
-)
-
-// GenerateFilePathFromURL will return a filepath for given access application url
-func GenerateFilePathFromURL(url *url.URL, suffix string) (string, error) {
-	configPath, err := homedir.Expand(config.DefaultConfigSearchDirectories()[0])
-	if err != nil {
-		return "", err
-	}
-	ok, err := config.FileExists(configPath)
-	if !ok && err == nil {
-		// create config directory if doesn't already exist
-		err = os.Mkdir(configPath, 0700)
-	}
-	if err != nil {
-		return "", err
-	}
-	name := strings.Replace(fmt.Sprintf("%s%s-%s", url.Hostname(), url.EscapedPath(), suffix), "/", "-", -1)
-	return filepath.Join(configPath, name), nil
-}

cmd/cloudflared/proxydns/cmd.go

@@ -0,0 +1,114 @@
+package proxydns
+
+import (
+	"net"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
+	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/metrics"
+	"github.com/cloudflare/cloudflared/tunneldns"
+)
+
+func Command(hidden bool) *cli.Command {
+	return &cli.Command{
+		Name:   "proxy-dns",
+		Action: cliutil.ConfiguredAction(Run),
+
+		Usage: "Run a DNS over HTTPS proxy server.",
+		Flags: []cli.Flag{
+			&cli.StringFlag{
+				Name:    "metrics",
+				Value:   "localhost:",
+				Usage:   "Listen address for metrics reporting.",
+				EnvVars: []string{"TUNNEL_METRICS"},
+			},
+			&cli.StringFlag{
+				Name:    "address",
+				Usage:   "Listen address for the DNS over HTTPS proxy server.",
+				Value:   "localhost",
+				EnvVars: []string{"TUNNEL_DNS_ADDRESS"},
+			},
+			// Note TUN-3758 , we use Int because UInt is not supported with altsrc
+			&cli.IntFlag{
+				Name:    "port",
+				Usage:   "Listen on given port for the DNS over HTTPS proxy server.",
+				Value:   53,
+				EnvVars: []string{"TUNNEL_DNS_PORT"},
+			},
+			&cli.StringSliceFlag{
+				Name:    "upstream",
+				Usage:   "Upstream endpoint URL, you can specify multiple endpoints for redundancy.",
+				Value:   cli.NewStringSlice("https://1.1.1.1/dns-query", "https://1.0.0.1/dns-query"),
+				EnvVars: []string{"TUNNEL_DNS_UPSTREAM"},
+			},
+			&cli.StringSliceFlag{
+				Name:    "bootstrap",
+				Usage:   "bootstrap endpoint URL, you can specify multiple endpoints for redundancy.",
+				Value:   cli.NewStringSlice("https://162.159.36.1/dns-query", "https://162.159.46.1/dns-query", "https://[2606:4700:4700::1111]/dns-query", "https://[2606:4700:4700::1001]/dns-query"),
+				EnvVars: []string{"TUNNEL_DNS_BOOTSTRAP"},
+			},
+			&cli.IntFlag{
+				Name:    "max-upstream-conns",
+				Usage:   "Maximum concurrent connections to upstream. Setting to 0 means unlimited.",
+				Value:   tunneldns.MaxUpstreamConnsDefault,
+				EnvVars: []string{"TUNNEL_DNS_MAX_UPSTREAM_CONNS"},
+			},
+		},
+		ArgsUsage: " ", // can't be the empty string or we get the default output
+		Hidden:    hidden,
+	}
+}
+
+// Run implements a foreground runner
+func Run(c *cli.Context) error {
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
+
+	metricsListener, err := net.Listen("tcp", c.String("metrics"))
+	if err != nil {
+		log.Fatal().Err(err).Msg("Failed to open the metrics listener")
+	}
+
+	go metrics.ServeMetrics(metricsListener, nil, nil, log)
+
+	listener, err := tunneldns.CreateListener(
+		c.String("address"),
+		// Note TUN-3758 , we use Int because UInt is not supported with altsrc
+		uint16(c.Int("port")),
+		c.StringSlice("upstream"),
+		c.StringSlice("bootstrap"),
+		c.Int("max-upstream-conns"),
+		log,
+	)
+
+	if err != nil {
+		log.Err(err).Msg("Failed to create the listeners")
+		return err
+	}
+
+	// Try to start the server
+	readySignal := make(chan struct{})
+	err = listener.Start(readySignal)
+	if err != nil {
+		log.Err(err).Msg("Failed to start the listeners")
+		return listener.Stop()
+	}
+	<-readySignal
+
+	// Wait for signal
+	signals := make(chan os.Signal, 10)
+	signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
+	defer signal.Stop(signals)
+	<-signals
+
+	// Shut down server
+	err = listener.Stop()
+	if err != nil {
+		log.Err(err).Msg("failed to stop")
+	}
+	return err
+}

cmd/cloudflared/service_template.go

@@ -10,8 +10,9 @@ import (
 	"os/exec"
 	"text/template"
 
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
 	"github.com/mitchellh/go-homedir"
+
+	"github.com/cloudflare/cloudflared/config"
 )
 
 type ServiceTemplate struct {
@@ -21,7 +22,8 @@ type ServiceTemplate struct {
 }
 
 type ServiceTemplateArgs struct {
-	Path string
+	Path      string
+	ExtraArgs []string
 }
 
 func (st *ServiceTemplate) ResolvePath() (string, error) {
@@ -139,6 +141,33 @@ func copyCredential(srcCredentialPath, destCredentialPath string) error {
 	return nil
 }
 
+func copyFile(src, dest string) error {
+	srcFile, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer srcFile.Close()
+
+	destFile, err := os.Create(dest)
+	if err != nil {
+		return err
+	}
+	ok := false
+	defer func() {
+		destFile.Close()
+		if !ok {
+			_ = os.Remove(dest)
+		}
+	}()
+
+	if _, err := io.Copy(destFile, srcFile); err != nil {
+		return err
+	}
+
+	ok = true
+	return nil
+}
+
 func copyConfig(srcConfigPath, destConfigPath string) error {
 	// Copy or create config
 	destFile, exists, err := openFile(destConfigPath, true)

cmd/cloudflared/shell/shell.go

@@ -1,33 +0,0 @@
-package shell
-
-import (
-	"io"
-	"os"
-	"os/exec"
-)
-
-// OpenBrowser opens the specified URL in the default browser of the user
-func OpenBrowser(url string) error {
-	return getBrowserCmd(url).Start()
-}
-
-// Run will kick off a shell task and pipe the results to the respective std pipes
-func Run(cmd string, args ...string) error {
-	c := exec.Command(cmd, args...)
-	stderr, err := c.StderrPipe()
-	if err != nil {
-		return err
-	}
-	go func() {
-		io.Copy(os.Stderr, stderr)
-	}()
-
-	stdout, err := c.StdoutPipe()
-	if err != nil {
-		return err
-	}
-	go func() {
-		io.Copy(os.Stdout, stdout)
-	}()
-	return c.Run()
-}

cmd/cloudflared/token/token.go

@@ -1,217 +0,0 @@
-package token
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"io/ioutil"
-	"net/url"
-	"os"
-	"os/signal"
-	"syscall"
-	"time"
-
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/path"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/transfer"
-	"github.com/cloudflare/cloudflared/logger"
-	"github.com/cloudflare/cloudflared/origin"
-	"github.com/coreos/go-oidc/jose"
-)
-
-const (
-	keyName = "token"
-)
-
-type lock struct {
-	lockFilePath string
-	backoff      *origin.BackoffHandler
-	sigHandler   *signalHandler
-}
-
-type signalHandler struct {
-	sigChannel chan os.Signal
-	signals    []os.Signal
-}
-
-type jwtPayload struct {
-	Aud   []string `json:"aud"`
-	Email string   `json:"email"`
-	Exp   int      `json:"exp"`
-	Iat   int      `json:"iat"`
-	Nbf   int      `json:"nbf"`
-	Iss   string   `json:"iss"`
-	Type  string   `json:"type"`
-	Subt  string   `json:"sub"`
-}
-
-func (p jwtPayload) isExpired() bool {
-	return int(time.Now().Unix()) > p.Exp
-}
-
-func (s *signalHandler) register(handler func()) {
-	s.sigChannel = make(chan os.Signal, 1)
-	signal.Notify(s.sigChannel, s.signals...)
-	go func(s *signalHandler) {
-		for range s.sigChannel {
-			handler()
-		}
-	}(s)
-}
-
-func (s *signalHandler) deregister() {
-	signal.Stop(s.sigChannel)
-	close(s.sigChannel)
-}
-
-func errDeleteTokenFailed(lockFilePath string) error {
-	return fmt.Errorf("failed to acquire a new Access token. Please try to delete %s", lockFilePath)
-}
-
-// newLock will get a new file lock
-func newLock(path string) *lock {
-	lockPath := path + ".lock"
-	return &lock{
-		lockFilePath: lockPath,
-		backoff:      &origin.BackoffHandler{MaxRetries: 7},
-		sigHandler: &signalHandler{
-			signals: []os.Signal{syscall.SIGINT, syscall.SIGTERM},
-		},
-	}
-}
-
-func (l *lock) Acquire() error {
-	// Intercept SIGINT and SIGTERM to release lock before exiting
-	l.sigHandler.register(func() {
-		l.deleteLockFile()
-		os.Exit(0)
-	})
-
-	// Check for a path.lock file
-	// if the lock file exists; start polling
-	// if not, create the lock file and go through the normal flow.
-	// See AUTH-1736 for the reason why we do all this
-	for isTokenLocked(l.lockFilePath) {
-		if l.backoff.Backoff(context.Background()) {
-			continue
-		}
-
-		if err := l.deleteLockFile(); err != nil {
-			return err
-		}
-	}
-
-	// Create a lock file so other processes won't also try to get the token at
-	// the same time
-	if err := ioutil.WriteFile(l.lockFilePath, []byte{}, 0600); err != nil {
-		return err
-	}
-	return nil
-}
-
-func (l *lock) deleteLockFile() error {
-	if err := os.Remove(l.lockFilePath); err != nil && !os.IsNotExist(err) {
-		return errDeleteTokenFailed(l.lockFilePath)
-	}
-	return nil
-}
-
-func (l *lock) Release() error {
-	defer l.sigHandler.deregister()
-	return l.deleteLockFile()
-}
-
-// isTokenLocked checks to see if there is another process attempting to get the token already
-func isTokenLocked(lockFilePath string) bool {
-	exists, err := config.FileExists(lockFilePath)
-	return exists && err == nil
-}
-
-// FetchTokenWithRedirect will either load a stored token or generate a new one
-// it appends the full url as the redirect URL to the access cli request if opening the browser
-func FetchTokenWithRedirect(appURL *url.URL, logger logger.Service) (string, error) {
-	return getToken(appURL, false, logger)
-}
-
-// FetchToken will either load a stored token or generate a new one
-// it appends the host of the appURL as the redirect URL to the access cli request if opening the browser
-func FetchToken(appURL *url.URL, logger logger.Service) (string, error) {
-	return getToken(appURL, true, logger)
-}
-
-// getToken will either load a stored token or generate a new one
-func getToken(appURL *url.URL, useHostOnly bool, logger logger.Service) (string, error) {
-	if token, err := GetTokenIfExists(appURL); token != "" && err == nil {
-		return token, nil
-	}
-
-	path, err := path.GenerateFilePathFromURL(appURL, keyName)
-	if err != nil {
-		return "", err
-	}
-
-	fileLock := newLock(path)
-
-	err = fileLock.Acquire()
-	if err != nil {
-		return "", err
-	}
-	defer fileLock.Release()
-
-	// check to see if another process has gotten a token while we waited for the lock
-	if token, err := GetTokenIfExists(appURL); token != "" && err == nil {
-		return token, nil
-	}
-
-	// this weird parameter is the resource name (token) and the key/value
-	// we want to send to the transfer service. the key is token and the value
-	// is blank (basically just the id generated in the transfer service)
-	token, err := transfer.Run(appURL, keyName, keyName, "", path, true, useHostOnly, logger)
-	if err != nil {
-		return "", err
-	}
-
-	return string(token), nil
-}
-
-// GetTokenIfExists will return the token from local storage if it exists and not expired
-func GetTokenIfExists(url *url.URL) (string, error) {
-	path, err := path.GenerateFilePathFromURL(url, keyName)
-	if err != nil {
-		return "", err
-	}
-	content, err := ioutil.ReadFile(path)
-	if err != nil {
-		return "", err
-	}
-	token, err := jose.ParseJWT(string(content))
-	if err != nil {
-		return "", err
-	}
-
-	var payload jwtPayload
-	err = json.Unmarshal(token.Payload, &payload)
-	if err != nil {
-		return "", err
-	}
-
-	if payload.isExpired() {
-		err := os.Remove(path)
-		return "", err
-	}
-
-	return token.Encode(), nil
-}
-
-// RemoveTokenIfExists removes the a token from local storage if it exists
-func RemoveTokenIfExists(url *url.URL) error {
-	path, err := path.GenerateFilePathFromURL(url, keyName)
-	if err != nil {
-		return err
-	}
-	if err := os.Remove(path); err != nil && !os.IsNotExist(err) {
-		return err
-	}
-
-	return nil
-}

cmd/cloudflared/tunnel/config_test.go

@@ -0,0 +1,13 @@
+package tunnel
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestDedup(t *testing.T) {
+	expected := []string{"a", "b"}
+	actual := dedup([]string{"a", "b", "a"})
+	require.ElementsMatch(t, expected, actual)
+}

cmd/cloudflared/tunnel/configuration.go

@@ -1,20 +1,19 @@
 package tunnel
 
 import (
-	"context"
 	"crypto/tls"
 	"fmt"
 	"io/ioutil"
-	"net"
-	"net/http"
 	"os"
 	"path/filepath"
 	"strings"
-	"time"
 
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/buildinfo"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/config"
+	"github.com/cloudflare/cloudflared/connection"
+	"github.com/cloudflare/cloudflared/edgediscovery"
+	"github.com/cloudflare/cloudflared/h2mux"
+	"github.com/cloudflare/cloudflared/ingress"
 	"github.com/cloudflare/cloudflared/origin"
 	"github.com/cloudflare/cloudflared/tlsconfig"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
@@ -23,15 +22,20 @@ import (
 	"github.com/google/uuid"
 	"github.com/mitchellh/go-homedir"
 	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
 	"github.com/urfave/cli/v2"
 	"golang.org/x/crypto/ssh/terminal"
 )
 
+const LogFieldOriginCertPath = "originCertPath"
+
 var (
 	developerPortal = "https://developers.cloudflare.com/argo-tunnel"
 	quickStartUrl   = developerPortal + "/quickstart/quickstart/"
 	serviceUrl      = developerPortal + "/reference/service/"
 	argumentsUrl    = developerPortal + "/reference/arguments/"
+
+	LogFieldHostname = "hostname"
 )
 
 // returns the first path that contains a cert.pem file. If none of the DefaultConfigSearchDirectories
@@ -46,30 +50,23 @@ func findDefaultOriginCertPath() string {
 	return ""
 }
 
-func generateRandomClientID(logger logger.Service) (string, error) {
+func generateRandomClientID(log *zerolog.Logger) (string, error) {
 	u, err := uuid.NewRandom()
 	if err != nil {
-		logger.Errorf("couldn't create UUID for client ID %s", err)
+		log.Error().Msgf("couldn't create UUID for client ID %s", err)
 		return "", err
 	}
 	return u.String(), nil
 }
 
-func logClientOptions(c *cli.Context, logger logger.Service) {
+func logClientOptions(c *cli.Context, log *zerolog.Logger) {
 	flags := make(map[string]interface{})
-	for _, flag := range c.LocalFlagNames() {
+	for _, flag := range c.FlagNames() {
 		flags[flag] = c.Generic(flag)
 	}
 
-	sliceFlags := []string{"header", "tag", "proxy-dns-upstream", "upstream", "edge"}
-	for _, sliceFlag := range sliceFlags {
-		if len(c.StringSlice(sliceFlag)) > 0 {
-			flags[sliceFlag] = strings.Join(c.StringSlice(sliceFlag), ", ")
-		}
-	}
-
 	if len(flags) > 0 {
-		logger.Infof("Environment variables %v", flags)
+		log.Info().Msgf("Settings: %v", flags)
 	}
 
 	envs := make(map[string]string)
@@ -84,7 +81,7 @@ func logClientOptions(c *cli.Context, logger logger.Service) {
 		}
 	}
 	if len(envs) > 0 {
-		logger.Infof("Environmental variables %v", envs)
+		log.Info().Msgf("Environmental variables %v", envs)
 	}
 }
 
@@ -92,32 +89,31 @@ func dnsProxyStandAlone(c *cli.Context) bool {
 	return c.IsSet("proxy-dns") && (!c.IsSet("hostname") && !c.IsSet("tag") && !c.IsSet("hello-world"))
 }
 
-func findOriginCert(c *cli.Context, logger logger.Service) (string, error) {
-	originCertPath := c.String("origincert")
+func findOriginCert(originCertPath string, log *zerolog.Logger) (string, error) {
 	if originCertPath == "" {
-		logger.Infof("Cannot determine default origin certificate path. No file %s in %v", config.DefaultCredentialFile, config.DefaultConfigSearchDirectories())
+		log.Info().Msgf("Cannot determine default origin certificate path. No file %s in %v", config.DefaultCredentialFile, config.DefaultConfigSearchDirectories())
 		if isRunningFromTerminal() {
-			logger.Errorf("You need to specify the origin certificate path with --origincert option, or set TUNNEL_ORIGIN_CERT environment variable. See %s for more information.", argumentsUrl)
-			return "", fmt.Errorf("Client didn't specify origincert path when running from terminal")
+			log.Error().Msgf("You need to specify the origin certificate path with --origincert option, or set TUNNEL_ORIGIN_CERT environment variable. See %s for more information.", argumentsUrl)
+			return "", fmt.Errorf("client didn't specify origincert path when running from terminal")
 		} else {
-			logger.Errorf("You need to specify the origin certificate path by specifying the origincert option in the configuration file, or set TUNNEL_ORIGIN_CERT environment variable. See %s for more information.", serviceUrl)
-			return "", fmt.Errorf("Client didn't specify origincert path")
+			log.Error().Msgf("You need to specify the origin certificate path by specifying the origincert option in the configuration file, or set TUNNEL_ORIGIN_CERT environment variable. See %s for more information.", serviceUrl)
+			return "", fmt.Errorf("client didn't specify origincert path")
 		}
 	}
 	var err error
 	originCertPath, err = homedir.Expand(originCertPath)
 	if err != nil {
-		logger.Errorf("Cannot resolve path %s: %s", originCertPath, err)
-		return "", fmt.Errorf("Cannot resolve path %s", originCertPath)
+		log.Err(err).Msgf("Cannot resolve origin certificate path")
+		return "", fmt.Errorf("cannot resolve path %s", originCertPath)
 	}
 	// Check that the user has acquired a certificate using the login command
 	ok, err := config.FileExists(originCertPath)
 	if err != nil {
-		logger.Errorf("Cannot check if origin cert exists at path %s", originCertPath)
-		return "", fmt.Errorf("Cannot check if origin cert exists at path %s", originCertPath)
+		log.Error().Err(err).Msgf("Cannot check if origin cert exists at path %s", originCertPath)
+		return "", fmt.Errorf("cannot check if origin cert exists at path %s", originCertPath)
 	}
 	if !ok {
-		logger.Errorf(`Cannot find a valid certificate for your origin at the path:
+		log.Error().Msgf(`Cannot find a valid certificate for your origin at the path:
 
     %s
 
@@ -126,29 +122,26 @@ If you don't have a certificate signed by Cloudflare, run the command:
 
 	%s login
 `, originCertPath, os.Args[0])
-		return "", fmt.Errorf("Cannot find a valid certificate at the path %s", originCertPath)
+		return "", fmt.Errorf("cannot find a valid certificate at the path %s", originCertPath)
 	}
 
 	return originCertPath, nil
 }
 
-func readOriginCert(originCertPath string, logger logger.Service) ([]byte, error) {
-	logger.Debugf("Reading origin cert from %s", originCertPath)
-
+func readOriginCert(originCertPath string) ([]byte, error) {
 	// Easier to send the certificate as []byte via RPC than decoding it at this point
 	originCert, err := ioutil.ReadFile(originCertPath)
 	if err != nil {
-		logger.Errorf("Cannot read %s to load origin certificate: %s", originCertPath, err)
-		return nil, fmt.Errorf("Cannot read %s to load origin certificate", originCertPath)
+		return nil, fmt.Errorf("cannot read %s to load origin certificate", originCertPath)
 	}
 	return originCert, nil
 }
 
-func getOriginCert(c *cli.Context, logger logger.Service) ([]byte, error) {
-	if originCertPath, err := findOriginCert(c, logger); err != nil {
+func getOriginCert(originCertPath string, log *zerolog.Logger) ([]byte, error) {
+	if originCertPath, err := findOriginCert(originCertPath, log); err != nil {
 		return nil, err
 	} else {
-		return readOriginCert(originCertPath, logger)
+		return readOriginCert(originCertPath)
 	}
 }
 
@@ -156,156 +149,176 @@ func prepareTunnelConfig(
 	c *cli.Context,
 	buildInfo *buildinfo.BuildInfo,
 	version string,
-	logger logger.Service,
-	transportLogger logger.Service,
-	namedTunnel *origin.NamedTunnelConfig,
-) (*origin.TunnelConfig, error) {
-	compatibilityMode := namedTunnel == nil
+	log, logTransport *zerolog.Logger,
+	observer *connection.Observer,
+	namedTunnel *connection.NamedTunnelConfig,
+) (*origin.TunnelConfig, ingress.Ingress, error) {
+	isNamedTunnel := namedTunnel != nil
 
-	hostname, err := validation.ValidateHostname(c.String("hostname"))
+	configHostname := c.String("hostname")
+	hostname, err := validation.ValidateHostname(configHostname)
 	if err != nil {
-		logger.Errorf("Invalid hostname: %s", err)
-		return nil, errors.Wrap(err, "Invalid hostname")
+		log.Err(err).Str(LogFieldHostname, configHostname).Msg("Invalid hostname")
+		return nil, ingress.Ingress{}, errors.Wrap(err, "Invalid hostname")
 	}
 	isFreeTunnel := hostname == ""
 	clientID := c.String("id")
 	if !c.IsSet("id") {
-		clientID, err = generateRandomClientID(logger)
+		clientID, err = generateRandomClientID(log)
 		if err != nil {
-			return nil, err
+			return nil, ingress.Ingress{}, err
 		}
 	}
 
 	tags, err := NewTagSliceFromCLI(c.StringSlice("tag"))
 	if err != nil {
-		logger.Errorf("Tag parse failure: %s", err)
-		return nil, errors.Wrap(err, "Tag parse failure")
+		log.Err(err).Msg("Tag parse failure")
+		return nil, ingress.Ingress{}, errors.Wrap(err, "Tag parse failure")
 	}
 
 	tags = append(tags, tunnelpogs.Tag{Name: "ID", Value: clientID})
 
-	originURL, err := config.ValidateUrl(c, compatibilityMode)
-	if err != nil {
-		logger.Errorf("Error validating origin URL: %s", err)
-		return nil, errors.Wrap(err, "Error validating origin URL")
-	}
-
 	var originCert []byte
 	if !isFreeTunnel {
-		originCert, err = getOriginCert(c, logger)
+		originCertPath := c.String("origincert")
+		originCertLog := log.With().
+			Str(LogFieldOriginCertPath, originCertPath).
+			Logger()
+
+		originCert, err = getOriginCert(originCertPath, &originCertLog)
 		if err != nil {
-			return nil, errors.Wrap(err, "Error getting origin cert")
+			return nil, ingress.Ingress{}, errors.Wrap(err, "Error getting origin cert")
 		}
 	}
 
-	originCertPool, err := tlsconfig.LoadOriginCA(c, logger)
-	if err != nil {
-		logger.Errorf("Error loading cert pool: %s", err)
-		return nil, errors.Wrap(err, "Error loading cert pool")
-	}
-
-	tunnelMetrics := origin.NewTunnelMetrics()
-	httpTransport := &http.Transport{
-		Proxy:                 http.ProxyFromEnvironment,
-		MaxIdleConns:          c.Int("proxy-keepalive-connections"),
-		MaxIdleConnsPerHost:   c.Int("proxy-keepalive-connections"),
-		IdleConnTimeout:       c.Duration("proxy-keepalive-timeout"),
-		TLSHandshakeTimeout:   c.Duration("proxy-tls-timeout"),
-		ExpectContinueTimeout: 1 * time.Second,
-		TLSClientConfig:       &tls.Config{RootCAs: originCertPool, InsecureSkipVerify: c.IsSet("no-tls-verify")},
-	}
-
-	dialer := &net.Dialer{
-		Timeout:   c.Duration("proxy-connect-timeout"),
-		KeepAlive: c.Duration("proxy-tcp-keepalive"),
-	}
-	if c.Bool("proxy-no-happy-eyeballs") {
-		dialer.FallbackDelay = -1 // As of Golang 1.12, a negative delay disables "happy eyeballs"
-	}
-	dialContext := dialer.DialContext
-
-	if c.IsSet("unix-socket") {
-		unixSocket, err := config.ValidateUnixSocket(c)
-		if err != nil {
-			logger.Errorf("Error validating --unix-socket: %s", err)
-			return nil, errors.Wrap(err, "Error validating --unix-socket")
-		}
-
-		logger.Infof("Proxying tunnel requests to unix:%s", unixSocket)
-		httpTransport.DialContext = func(ctx context.Context, _, _ string) (net.Conn, error) {
-			// if --unix-socket specified, enforce network type "unix"
-			return dialContext(ctx, "unix", unixSocket)
-		}
-	} else {
-		logger.Infof("Proxying tunnel requests to %s", originURL)
-		httpTransport.DialContext = dialContext
-	}
-
-	if !c.IsSet("hello-world") && c.IsSet("origin-server-name") {
-		httpTransport.TLSClientConfig.ServerName = c.String("origin-server-name")
-	}
-	// If tunnel running in bastion mode, a connection to origin will not exist until initiated by the client.
-	if !c.IsSet(bastionFlag) {
-		if err = validation.ValidateHTTPService(originURL, hostname, httpTransport); err != nil {
-			logger.Errorf("unable to connect to the origin: %s", err)
-		}
-	}
-
-	toEdgeTLSConfig, err := tlsconfig.CreateTunnelConfig(c)
-	if err != nil {
-		logger.Errorf("unable to create TLS config to connect with edge: %s", err)
-		return nil, errors.Wrap(err, "unable to create TLS config to connect with edge")
-	}
-
-	if namedTunnel != nil {
+	var (
+		ingressRules  ingress.Ingress
+		classicTunnel *connection.ClassicTunnelConfig
+	)
+	cfg := config.GetConfiguration()
+	if isNamedTunnel {
 		clientUUID, err := uuid.NewRandom()
 		if err != nil {
-			return nil, errors.Wrap(err, "can't generate clientUUID")
+			return nil, ingress.Ingress{}, errors.Wrap(err, "can't generate connector UUID")
 		}
+		log.Info().Msgf("Generated Connector ID: %s", clientUUID)
+		features := append(c.StringSlice("features"), origin.FeatureSerializedHeaders)
 		namedTunnel.Client = tunnelpogs.ClientInfo{
 			ClientID: clientUUID[:],
-			Features: []string{origin.FeatureSerializedHeaders},
+			Features: dedup(features),
 			Version:  version,
-			Arch:     fmt.Sprintf("%s_%s", buildInfo.GoOS, buildInfo.GoArch),
+			Arch:     buildInfo.OSArch(),
 		}
+		ingressRules, err = ingress.ParseIngress(cfg)
+		if err != nil && err != ingress.ErrNoIngressRules {
+			return nil, ingress.Ingress{}, err
+		}
+		if !ingressRules.IsEmpty() && c.IsSet("url") {
+			return nil, ingress.Ingress{}, ingress.ErrURLIncompatibleWithIngress
+		}
+	} else {
+		classicTunnel = &connection.ClassicTunnelConfig{
+			Hostname:   hostname,
+			OriginCert: originCert,
+			// turn off use of reconnect token and auth refresh when using named tunnels
+			UseReconnectToken: !isNamedTunnel && c.Bool("use-reconnect-token"),
+		}
+	}
+
+	// Convert single-origin configuration into multi-origin configuration.
+	if ingressRules.IsEmpty() {
+		ingressRules, err = ingress.NewSingleOrigin(c, !isNamedTunnel)
+		if err != nil {
+			return nil, ingress.Ingress{}, err
+		}
+	}
+
+	var warpRoutingService *ingress.WarpRoutingService
+	warpRoutingEnabled := isWarpRoutingEnabled(cfg.WarpRouting, isNamedTunnel)
+	if warpRoutingEnabled {
+		warpRoutingService = ingress.NewWarpRoutingService()
+		log.Info().Msgf("Warp-routing is enabled")
+	}
+
+	protocolSelector, err := connection.NewProtocolSelector(c.String("protocol"), warpRoutingEnabled, namedTunnel, edgediscovery.HTTP2Percentage, origin.ResolveTTL, log)
+	if err != nil {
+		return nil, ingress.Ingress{}, err
+	}
+	log.Info().Msgf("Initial protocol %s", protocolSelector.Current())
+
+	edgeTLSConfigs := make(map[connection.Protocol]*tls.Config, len(connection.ProtocolList))
+	for _, p := range connection.ProtocolList {
+		edgeTLSConfig, err := tlsconfig.CreateTunnelConfig(c, p.ServerName())
+		if err != nil {
+			return nil, ingress.Ingress{}, errors.Wrap(err, "unable to create TLS config to connect with edge")
+		}
+		edgeTLSConfigs[p] = edgeTLSConfig
+	}
+
+	originProxy := origin.NewOriginProxy(ingressRules, warpRoutingService, tags, log)
+	connectionConfig := &connection.Config{
+		OriginProxy:     originProxy,
+		GracePeriod:     c.Duration("grace-period"),
+		ReplaceExisting: c.Bool("force"),
+	}
+	muxerConfig := &connection.MuxerConfig{
+		HeartbeatInterval: c.Duration("heartbeat-interval"),
+		// Note TUN-3758 , we use Int because UInt is not supported with altsrc
+		MaxHeartbeats: uint64(c.Int("heartbeat-count")),
+		// Note TUN-3758 , we use Int because UInt is not supported with altsrc
+		CompressionSetting: h2mux.CompressionSetting(uint64(c.Int("compression-quality"))),
+		MetricsUpdateFreq:  c.Duration("metrics-update-freq"),
 	}
 
 	return &origin.TunnelConfig{
-		BuildInfo:          buildInfo,
-		ClientID:           clientID,
-		ClientTlsConfig:    httpTransport.TLSClientConfig,
-		CompressionQuality: c.Uint64("compression-quality"),
-		EdgeAddrs:          c.StringSlice("edge"),
-		GracePeriod:        c.Duration("grace-period"),
-		HAConnections:      c.Int("ha-connections"),
-		HTTPTransport:      httpTransport,
-		HeartbeatInterval:  c.Duration("heartbeat-interval"),
-		Hostname:           hostname,
-		HTTPHostHeader:     c.String("http-host-header"),
-		IncidentLookup:     origin.NewIncidentLookup(),
-		IsAutoupdated:      c.Bool("is-autoupdated"),
-		IsFreeTunnel:       isFreeTunnel,
-		LBPool:             c.String("lb-pool"),
-		Logger:             logger,
-		TransportLogger:    transportLogger,
-		MaxHeartbeats:      c.Uint64("heartbeat-count"),
-		Metrics:            tunnelMetrics,
-		MetricsUpdateFreq:  c.Duration("metrics-update-freq"),
-		NoChunkedEncoding:  c.Bool("no-chunked-encoding"),
-		OriginCert:         originCert,
-		OriginUrl:          originURL,
-		ReportedVersion:    version,
-		Retries:            c.Uint("retries"),
-		RunFromTerminal:    isRunningFromTerminal(),
-		Tags:               tags,
-		TlsConfig:          toEdgeTLSConfig,
-		NamedTunnel:        namedTunnel,
-		ReplaceExisting:    c.Bool("force"),
-		// turn off use of reconnect token and auth refresh when using named tunnels
-		UseReconnectToken: compatibilityMode && c.Bool("use-reconnect-token"),
-	}, nil
+		ConnectionConfig: connectionConfig,
+		OSArch:           buildInfo.OSArch(),
+		ClientID:         clientID,
+		EdgeAddrs:        c.StringSlice("edge"),
+		HAConnections:    c.Int("ha-connections"),
+		IncidentLookup:   origin.NewIncidentLookup(),
+		IsAutoupdated:    c.Bool("is-autoupdated"),
+		IsFreeTunnel:     isFreeTunnel,
+		LBPool:           c.String("lb-pool"),
+		Tags:             tags,
+		Log:              log,
+		LogTransport:     logTransport,
+		Observer:         observer,
+		ReportedVersion:  version,
+		// Note TUN-3758 , we use Int because UInt is not supported with altsrc
+		Retries:          uint(c.Int("retries")),
+		RunFromTerminal:  isRunningFromTerminal(),
+		NamedTunnel:      namedTunnel,
+		ClassicTunnel:    classicTunnel,
+		MuxerConfig:      muxerConfig,
+		ProtocolSelector: protocolSelector,
+		EdgeTLSConfigs:   edgeTLSConfigs,
+	}, ingressRules, nil
+}
+
+func isWarpRoutingEnabled(warpConfig config.WarpRoutingConfig, isNamedTunnel bool) bool {
+	return warpConfig.Enabled && isNamedTunnel
 }
 
 func isRunningFromTerminal() bool {
 	return terminal.IsTerminal(int(os.Stdout.Fd()))
 }
+
+// Remove any duplicates from the slice
+func dedup(slice []string) []string {
+
+	// Convert the slice into a set
+	set := make(map[string]bool, 0)
+	for _, str := range slice {
+		set[str] = true
+	}
+
+	// Convert the set back into a slice
+	keys := make([]string, len(set))
+	i := 0
+	for str := range set {
+		keys[i] = str
+		i++
+	}
+	return keys
+}

cmd/cloudflared/tunnel/credential_finder.go

@@ -0,0 +1,83 @@
+package tunnel
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/cloudflare/cloudflared/config"
+
+	"github.com/google/uuid"
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v2"
+)
+
+// CredFinder can find the tunnel credentials file.
+type CredFinder interface {
+	Path() (string, error)
+}
+
+// Implements CredFinder and looks for the credentials file at the given
+// filepath.
+type staticPath struct {
+	filePath string
+	fs       fileSystem
+}
+
+func newStaticPath(filePath string, fs fileSystem) CredFinder {
+	return staticPath{
+		filePath: filePath,
+		fs:       fs,
+	}
+}
+
+func (a staticPath) Path() (string, error) {
+	if a.filePath != "" && a.fs.validFilePath(a.filePath) {
+		return a.filePath, nil
+	}
+	return "", fmt.Errorf("Tunnel credentials file '%s' doesn't exist or is not a file", a.filePath)
+}
+
+// Implements CredFinder and looks for the credentials file in several directories
+// searching for a file named <id>.json
+type searchByID struct {
+	id  uuid.UUID
+	c   *cli.Context
+	log *zerolog.Logger
+	fs  fileSystem
+}
+
+func newSearchByID(id uuid.UUID, c *cli.Context, log *zerolog.Logger, fs fileSystem) CredFinder {
+	return searchByID{
+		id:  id,
+		c:   c,
+		log: log,
+		fs:  fs,
+	}
+}
+
+func (s searchByID) Path() (string, error) {
+	originCertPath := s.c.String("origincert")
+	originCertLog := s.log.With().
+		Str(LogFieldOriginCertPath, originCertPath).
+		Logger()
+
+	// Fallback to look for tunnel credentials in the origin cert directory
+	if originCertPath, err := findOriginCert(originCertPath, &originCertLog); err == nil {
+		originCertDir := filepath.Dir(originCertPath)
+		if filePath, err := tunnelFilePath(s.id, originCertDir); err == nil {
+			if s.fs.validFilePath(filePath) {
+				return filePath, nil
+			}
+		}
+	}
+
+	// Last resort look under default config directories
+	for _, configDir := range config.DefaultConfigSearchDirectories() {
+		if filePath, err := tunnelFilePath(s.id, configDir); err == nil {
+			if s.fs.validFilePath(filePath) {
+				return filePath, nil
+			}
+		}
+	}
+	return "", fmt.Errorf("tunnel credentials file not found")
+}

cmd/cloudflared/tunnel/filesystem.go

@@ -0,0 +1,27 @@
+package tunnel
+
+import (
+	"io/ioutil"
+	"os"
+)
+
+// Abstract away details of reading files, so that SubcommandContext can read
+// from either the real filesystem, or a mock (when running unit tests).
+type fileSystem interface {
+	readFile(filePath string) ([]byte, error)
+	validFilePath(path string) bool
+}
+
+type realFileSystem struct{}
+
+func (fs realFileSystem) validFilePath(path string) bool {
+	fileStat, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+	return !fileStat.IsDir()
+}
+
+func (fs realFileSystem) readFile(filePath string) ([]byte, error) {
+	return ioutil.ReadFile(filePath)
+}

cmd/cloudflared/tunnel/info.go

@@ -0,0 +1,15 @@
+package tunnel
+
+import (
+	"time"
+
+	"github.com/cloudflare/cloudflared/tunnelstore"
+	"github.com/google/uuid"
+)
+
+type Info struct {
+	ID         uuid.UUID                   `json:"id"`
+	Name       string                      `json:"name"`
+	CreatedAt  time.Time                   `json:"createdAt"`
+	Connectors []*tunnelstore.ActiveClient `json:"conns"`
+}

cmd/cloudflared/tunnel/ingress_subcommands.go

@@ -0,0 +1,114 @@
+package tunnel
+
+import (
+	"fmt"
+	"net/url"
+
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
+	"github.com/cloudflare/cloudflared/config"
+	"github.com/cloudflare/cloudflared/ingress"
+
+	"github.com/pkg/errors"
+	"github.com/urfave/cli/v2"
+)
+
+func buildIngressSubcommand() *cli.Command {
+	return &cli.Command{
+		Name:      "ingress",
+		Category:  "Tunnel",
+		Usage:     "Validate and test cloudflared tunnel's ingress configuration",
+		UsageText: "cloudflared tunnel [--config FILEPATH] ingress COMMAND [arguments...]",
+		Hidden:    true,
+		Description: ` Cloudflared lets you route traffic from the internet to multiple different addresses on your
+		origin. Multiple-origin routing is configured by a set of rules. Each rule matches traffic
+		by its hostname or path, and routes it to an address. These rules are configured under the
+		'ingress' key of your config.yaml, for example:
+
+		ingress:
+		  - hostname: www.example.com
+		    service: https://localhost:8000
+		  - hostname: *.example.xyz
+		    path: /[a-zA-Z]+.html
+		    service: https://localhost:8001
+		  - hostname: *
+		    service: https://localhost:8002
+
+		To ensure cloudflared can route all incoming requests, the last rule must be a catch-all
+		rule that matches all traffic. You can validate these rules with the 'ingress validate'
+		command, and test which rule matches a particular URL with 'ingress rule <URL>'.
+
+		Multiple-origin routing is incompatible with the --url flag.`,
+		Subcommands: []*cli.Command{buildValidateIngressCommand(), buildTestURLCommand()},
+	}
+}
+
+func buildValidateIngressCommand() *cli.Command {
+	return &cli.Command{
+		Name:        "validate",
+		Action:      cliutil.ConfiguredAction(validateIngressCommand),
+		Usage:       "Validate the ingress configuration ",
+		UsageText:   "cloudflared tunnel [--config FILEPATH] ingress validate",
+		Description: "Validates the configuration file, ensuring your ingress rules are OK.",
+	}
+}
+
+func buildTestURLCommand() *cli.Command {
+	return &cli.Command{
+		Name:      "rule",
+		Action:    cliutil.ConfiguredAction(testURLCommand),
+		Usage:     "Check which ingress rule matches a given request URL",
+		UsageText: "cloudflared tunnel [--config FILEPATH] ingress rule URL",
+		ArgsUsage: "URL",
+		Description: "Check which ingress rule matches a given request URL. " +
+			"Ingress rules match a request's hostname and path. Hostname is " +
+			"optional and is either a full hostname like `www.example.com` or a " +
+			"hostname with a `*` for its subdomains, e.g. `*.example.com`. Path " +
+			"is optional and matches a regular expression, like `/[a-zA-Z0-9_]+.html`",
+	}
+}
+
+// validateIngressCommand check the syntax of the ingress rules in the cloudflared config file
+func validateIngressCommand(c *cli.Context) error {
+	conf := config.GetConfiguration()
+	if conf.Source() == "" {
+		fmt.Println("No configuration file was found. Please create one, or use the --config flag to specify its filepath. You can use the help command to learn more about configuration files")
+		return nil
+	}
+	fmt.Println("Validating rules from", conf.Source())
+	if _, err := ingress.ParseIngress(conf); err != nil {
+		return errors.Wrap(err, "Validation failed")
+	}
+	if c.IsSet("url") {
+		return ingress.ErrURLIncompatibleWithIngress
+	}
+	fmt.Println("OK")
+	return nil
+}
+
+// testURLCommand checks which ingress rule matches the given URL.
+func testURLCommand(c *cli.Context) error {
+	requestArg := c.Args().First()
+	if requestArg == "" {
+		return errors.New("cloudflared tunnel rule expects a single argument, the URL to test")
+	}
+
+	requestURL, err := url.Parse(requestArg)
+	if err != nil {
+		return fmt.Errorf("%s is not a valid URL", requestArg)
+	}
+	if requestURL.Hostname() == "" && requestURL.Scheme == "" {
+		return fmt.Errorf("%s doesn't have a hostname, consider adding a scheme", requestArg)
+	}
+
+	conf := config.GetConfiguration()
+	fmt.Println("Using rules from", conf.Source())
+	ing, err := ingress.ParseIngress(conf)
+	if err != nil {
+		return errors.Wrap(err, "Validation failed")
+	}
+
+	_, i := ing.FindMatchingRule(requestURL.Hostname(), requestURL.Path)
+	fmt.Printf("Matched rule #%d\n", i+1)
+	fmt.Println(ing.Rules[i].MultiLineString())
+	return nil
+}

cmd/cloudflared/tunnel/login.go

@@ -2,17 +2,20 @@ package tunnel
 
 import (
 	"fmt"
+	"io/ioutil"
 	"net/url"
 	"os"
 	"path/filepath"
 	"syscall"
 
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/transfer"
-	"github.com/cloudflare/cloudflared/logger"
-	homedir "github.com/mitchellh/go-homedir"
+	"github.com/mitchellh/go-homedir"
 	"github.com/pkg/errors"
-	cli "github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v2"
+
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
+	"github.com/cloudflare/cloudflared/config"
+	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/token"
 )
 
 const (
@@ -20,11 +23,18 @@ const (
 	callbackStoreURL = "https://login.argotunnel.com/"
 )
 
-func login(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
+func buildLoginSubcommand(hidden bool) *cli.Command {
+	return &cli.Command{
+		Name:      "login",
+		Action:    cliutil.ConfiguredAction(login),
+		Usage:     "Generate a configuration file with your login details",
+		ArgsUsage: " ",
+		Hidden:    hidden,
 	}
+}
+
+func login(c *cli.Context) error {
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
 	path, ok, err := checkForExistingCert()
 	if ok {
@@ -40,12 +50,24 @@ func login(c *cli.Context) error {
 		return err
 	}
 
-	_, err = transfer.Run(loginURL, "cert", "callback", callbackStoreURL, path, false, false, logger)
+	resourceData, err := token.RunTransfer(
+		loginURL,
+		"cert",
+		"callback",
+		callbackStoreURL,
+		false,
+		false,
+		log,
+	)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Failed to write the certificate due to the following error:\n%v\n\nYour browser will download the certificate instead. You will have to manually\ncopy it to the following path:\n\n%s\n", err, path)
 		return err
 	}
 
+	if err := ioutil.WriteFile(path, resourceData, 0600); err != nil {
+		return errors.Wrap(err, fmt.Sprintf("error writing cert to %s", path))
+	}
+
 	fmt.Fprintf(os.Stdout, "You have successfully logged in.\nIf you wish to copy your credentials to a server, they have been saved to:\n%s\n", path)
 	return nil
 }

cmd/cloudflared/tunnel/server.go

@@ -1,20 +1,25 @@
 package tunnel
 
 import (
-	"github.com/cloudflare/cloudflared/logger"
+	"fmt"
+
 	"github.com/cloudflare/cloudflared/tunneldns"
 
-	"github.com/urfave/cli/v2"
-
 	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v2"
 )
 
-func runDNSProxyServer(c *cli.Context, dnsReadySignal, shutdownC chan struct{}, logger logger.Service) error {
+func runDNSProxyServer(c *cli.Context, dnsReadySignal chan struct{}, shutdownC <-chan struct{}, log *zerolog.Logger) error {
 	port := c.Int("proxy-dns-port")
 	if port <= 0 || port > 65535 {
 		return errors.New("The 'proxy-dns-port' must be a valid port number in <1, 65535> range.")
 	}
-	listener, err := tunneldns.CreateListener(c.String("proxy-dns-address"), uint16(port), c.StringSlice("proxy-dns-upstream"), c.StringSlice("proxy-dns-bootstrap"), logger)
+	maxUpstreamConnections := c.Int("proxy-dns-max-upstream-conns")
+	if maxUpstreamConnections < 0 {
+		return fmt.Errorf("'%s' must be 0 or higher", "proxy-dns-max-upstream-conns")
+	}
+	listener, err := tunneldns.CreateListener(c.String("proxy-dns-address"), uint16(port), c.StringSlice("proxy-dns-upstream"), c.StringSlice("proxy-dns-bootstrap"), maxUpstreamConnections, log)
 	if err != nil {
 		close(dnsReadySignal)
 		listener.Stop()
@@ -26,6 +31,7 @@ func runDNSProxyServer(c *cli.Context, dnsReadySignal, shutdownC chan struct{},
 		return errors.Wrap(err, "Cannot start the DNS over HTTPS proxy server")
 	}
 	<-shutdownC
-	listener.Stop()
+	_ = listener.Stop()
+	log.Info().Msg("DNS server stopped")
 	return nil
 }

cmd/cloudflared/tunnel/signal.go

@@ -4,83 +4,20 @@ import (
 	"os"
 	"os/signal"
 	"syscall"
-	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/rs/zerolog"
 )
 
-// waitForSignal notifies all routines to shutdownC immediately by closing the
-// shutdownC when one of the routines in main exits, or when this process receives
-// SIGTERM/SIGINT
-func waitForSignal(errC chan error, shutdownC chan struct{}, logger logger.Service) error {
+// waitForSignal closes graceShutdownC to indicate that we should start graceful shutdown sequence
+func waitForSignal(graceShutdownC chan struct{}, logger *zerolog.Logger) {
 	signals := make(chan os.Signal, 10)
 	signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
 	defer signal.Stop(signals)
 
 	select {
-	case err := <-errC:
-		logger.Infof("terminating due to error: %v", err)
-		close(shutdownC)
-		return err
 	case s := <-signals:
-		logger.Infof("terminating due to signal %s", s)
-		close(shutdownC)
-	case <-shutdownC:
-	}
-	return nil
-}
-
-// waitForSignalWithGraceShutdown notifies all routines to shutdown immediately
-// by closing the shutdownC when one of the routines in main exits.
-// When this process recieves SIGTERM/SIGINT, it closes the graceShutdownC to
-// notify certain routines to start graceful shutdown. When grace period is over,
-// or when some routine exits, it notifies the rest of the routines to shutdown
-// immediately by closing shutdownC.
-// In the case of handling commands from Windows Service Manager, closing graceShutdownC
-// initiate graceful shutdown.
-func waitForSignalWithGraceShutdown(errC chan error,
-	shutdownC, graceShutdownC chan struct{},
-	gracePeriod time.Duration,
-	logger logger.Service,
-) error {
-	signals := make(chan os.Signal, 10)
-	signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
-	defer signal.Stop(signals)
-
-	select {
-	case err := <-errC:
-		logger.Infof("Initiating graceful shutdown due to %v ...", err)
+		logger.Info().Msgf("Initiating graceful shutdown due to signal %s ...", s)
 		close(graceShutdownC)
-		close(shutdownC)
-		return err
-	case s := <-signals:
-		logger.Infof("Initiating graceful shutdown due to signal %s ...", s)
-		close(graceShutdownC)
-		waitForGracePeriod(signals, errC, shutdownC, gracePeriod, logger)
 	case <-graceShutdownC:
-		waitForGracePeriod(signals, errC, shutdownC, gracePeriod, logger)
-	case <-shutdownC:
-		close(graceShutdownC)
 	}
-
-	return nil
-}
-
-func waitForGracePeriod(signals chan os.Signal,
-	errC chan error,
-	shutdownC chan struct{},
-	gracePeriod time.Duration,
-	logger logger.Service,
-) {
-	// Unregister signal handler early, so the client can send a second SIGTERM/SIGINT
-	// to force shutdown cloudflared
-	signal.Stop(signals)
-	graceTimerTick := time.Tick(gracePeriod)
-	// send close signal via shutdownC when grace period expires or when an
-	// error is encountered.
-	select {
-	case <-graceTimerTick:
-	case <-errC:
-	}
-	close(shutdownC)
-}
+}

cmd/cloudflared/tunnel/signal_test.go

@@ -2,11 +2,12 @@ package tunnel
 
 import (
 	"fmt"
+	"sync"
 	"syscall"
 	"testing"
 	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -18,140 +19,86 @@ var (
 	graceShutdownErr = fmt.Errorf("receive grace shutdown")
 )
 
-func testChannelClosed(t *testing.T, c chan struct{}) {
+func channelClosed(c chan struct{}) bool {
 	select {
 	case <-c:
-		return
+		return true
 	default:
-		t.Fatal("Channel should be closed")
+		return false
 	}
 }
 
-func TestWaitForSignal(t *testing.T) {
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
-
-	// Test handling server error
-	errC := make(chan error)
-	shutdownC := make(chan struct{})
-
-	go func() {
-		errC <- serverErr
-	}()
-
-	// received error, shutdownC should be closed
-	err := waitForSignal(errC, shutdownC, logger)
-	assert.Equal(t, serverErr, err)
-	testChannelClosed(t, shutdownC)
+func TestSignalShutdown(t *testing.T) {
+	log := zerolog.Nop()
 
 	// Test handling SIGTERM & SIGINT
 	for _, sig := range []syscall.Signal{syscall.SIGTERM, syscall.SIGINT} {
-		errC = make(chan error)
-		shutdownC = make(chan struct{})
-
-		go func(shutdownC chan struct{}) {
-			<-shutdownC
-			errC <- shutdownErr
-		}(shutdownC)
+		graceShutdownC := make(chan struct{})
 
 		go func(sig syscall.Signal) {
 			// sleep for a tick to prevent sending signal before calling waitForSignal
 			time.Sleep(tick)
-			syscall.Kill(syscall.Getpid(), sig)
+			_ = syscall.Kill(syscall.Getpid(), sig)
 		}(sig)
 
-		err = waitForSignal(errC, shutdownC, logger)
-		assert.Equal(t, nil, err)
-		assert.Equal(t, shutdownErr, <-errC)
-		testChannelClosed(t, shutdownC)
+		time.AfterFunc(time.Second, func() {
+			select {
+			case <-graceShutdownC:
+			default:
+				close(graceShutdownC)
+				t.Fatal("waitForSignal timed out")
+			}
+		})
+
+		waitForSignal(graceShutdownC, &log)
+		assert.True(t, channelClosed(graceShutdownC))
 	}
 }
 
-func TestWaitForSignalWithGraceShutdown(t *testing.T) {
-	// Test server returning error
-	errC := make(chan error)
-	shutdownC := make(chan struct{})
-	graceshutdownC := make(chan struct{})
+func TestWaitForShutdown(t *testing.T) {
+	log := zerolog.Nop()
 
+	errC := make(chan error)
+	graceShutdownC := make(chan struct{})
+	const gracePeriod = 5 * time.Second
+
+	contextCancelled := false
+	cancel := func() {
+		contextCancelled = true
+	}
+	var wg sync.WaitGroup
+
+	// on, error stop immediately
+	contextCancelled = false
+	startTime := time.Now()
 	go func() {
 		errC <- serverErr
 	}()
-
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
-
-	// received error, both shutdownC and graceshutdownC should be closed
-	err := waitForSignalWithGraceShutdown(errC, shutdownC, graceshutdownC, tick, logger)
+	err := waitToShutdown(&wg, cancel, errC, graceShutdownC, gracePeriod, &log)
 	assert.Equal(t, serverErr, err)
-	testChannelClosed(t, shutdownC)
-	testChannelClosed(t, graceshutdownC)
+	assert.True(t, contextCancelled)
+	assert.False(t, channelClosed(graceShutdownC))
+	assert.True(t, time.Now().Sub(startTime) < time.Second) // check that wait ended early
 
-	// shutdownC closed, graceshutdownC should also be closed and no error
-	errC = make(chan error)
-	shutdownC = make(chan struct{})
-	graceshutdownC = make(chan struct{})
-	close(shutdownC)
-	err = waitForSignalWithGraceShutdown(errC, shutdownC, graceshutdownC, tick, logger)
-	assert.NoError(t, err)
-	testChannelClosed(t, shutdownC)
-	testChannelClosed(t, graceshutdownC)
+	// on graceful shutdown, ignore error but stop as soon as an error arrives
+	contextCancelled = false
+	startTime = time.Now()
+	go func() {
+		close(graceShutdownC)
+		time.Sleep(tick)
+		errC <- serverErr
+	}()
+	err = waitToShutdown(&wg, cancel, errC, graceShutdownC, gracePeriod, &log)
+	assert.Nil(t, err)
+	assert.True(t, contextCancelled)
+	assert.True(t, time.Now().Sub(startTime) < time.Second) // check that wait ended early
 
-	// graceshutdownC closed, shutdownC should also be closed and no error
-	errC = make(chan error)
-	shutdownC = make(chan struct{})
-	graceshutdownC = make(chan struct{})
-	close(graceshutdownC)
-	err = waitForSignalWithGraceShutdown(errC, shutdownC, graceshutdownC, tick, logger)
-	assert.NoError(t, err)
-	testChannelClosed(t, shutdownC)
-	testChannelClosed(t, graceshutdownC)
-
-	// Test handling SIGTERM & SIGINT
-	for _, sig := range []syscall.Signal{syscall.SIGTERM, syscall.SIGINT} {
-		errC := make(chan error)
-		shutdownC = make(chan struct{})
-		graceshutdownC = make(chan struct{})
-
-		go func(shutdownC, graceshutdownC chan struct{}) {
-			<-graceshutdownC
-			<-shutdownC
-			errC <- graceShutdownErr
-		}(shutdownC, graceshutdownC)
-
-		go func(sig syscall.Signal) {
-			// sleep for a tick to prevent sending signal before calling waitForSignalWithGraceShutdown
-			time.Sleep(tick)
-			syscall.Kill(syscall.Getpid(), sig)
-		}(sig)
-
-		err = waitForSignalWithGraceShutdown(errC, shutdownC, graceshutdownC, tick, logger)
-		assert.Equal(t, nil, err)
-		assert.Equal(t, graceShutdownErr, <-errC)
-		testChannelClosed(t, shutdownC)
-		testChannelClosed(t, graceshutdownC)
-	}
-
-	// Test handling SIGTERM & SIGINT, server send error before end of grace period
-	for _, sig := range []syscall.Signal{syscall.SIGTERM, syscall.SIGINT} {
-		errC := make(chan error)
-		shutdownC = make(chan struct{})
-		graceshutdownC = make(chan struct{})
-
-		go func(shutdownC, graceshutdownC chan struct{}) {
-			<-graceshutdownC
-			errC <- graceShutdownErr
-			<-shutdownC
-			errC <- shutdownErr
-		}(shutdownC, graceshutdownC)
-
-		go func(sig syscall.Signal) {
-			// sleep for a tick to prevent sending signal before calling waitForSignalWithGraceShutdown
-			time.Sleep(tick)
-			syscall.Kill(syscall.Getpid(), sig)
-		}(sig)
-
-		err = waitForSignalWithGraceShutdown(errC, shutdownC, graceshutdownC, tick, logger)
-		assert.Equal(t, nil, err)
-		assert.Equal(t, shutdownErr, <-errC)
-		testChannelClosed(t, shutdownC)
-		testChannelClosed(t, graceshutdownC)
-	}
+	// with graceShutdownC closed stop right away without grace period
+	contextCancelled = false
+	startTime = time.Now()
+	err = waitToShutdown(&wg, cancel, errC, graceShutdownC, 0, &log)
+	assert.Nil(t, err)
+	assert.True(t, contextCancelled)
+	assert.True(t, time.Now().Sub(startTime) < time.Second) // check that wait ended early
 }
+

cmd/cloudflared/tunnel/subcommand_context.go

@@ -3,51 +3,64 @@ package tunnel
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
-	"path/filepath"
 	"strings"
 
-	"github.com/cloudflare/cloudflared/certutil"
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
-	"github.com/cloudflare/cloudflared/logger"
-	"github.com/cloudflare/cloudflared/origin"
-	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
-	"github.com/cloudflare/cloudflared/tunnelstore"
 	"github.com/google/uuid"
 	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
 	"github.com/urfave/cli/v2"
+
+	"github.com/cloudflare/cloudflared/certutil"
+	"github.com/cloudflare/cloudflared/connection"
+	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/tunnelstore"
 )
 
+type errInvalidJSONCredential struct {
+	err  error
+	path string
+}
+
+func (e errInvalidJSONCredential) Error() string {
+	return "Invalid JSON when parsing tunnel credentials file"
+}
+
 // subcommandContext carries structs shared between subcommands, to reduce number of arguments needed to
 // pass between subcommands, and make sure they are only initialized once
 type subcommandContext struct {
-	c      *cli.Context
-	logger logger.Service
+	c           *cli.Context
+	log         *zerolog.Logger
+	isUIEnabled bool
+	fs          fileSystem
 
 	// These fields should be accessed using their respective Getter
 	tunnelstoreClient tunnelstore.Client
 	userCredential    *userCredential
-
-	isUIEnabled bool
 }
 
 func newSubcommandContext(c *cli.Context) (*subcommandContext, error) {
 	isUIEnabled := c.IsSet(uiFlag) && c.String("name") != ""
 
 	// If UI is enabled, terminal log output should be disabled -- log should be written into a UI log window instead
-	logger, err := createLogger(c, false, isUIEnabled)
-	if err != nil {
-		return nil, errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, isUIEnabled)
 
 	return &subcommandContext{
 		c:           c,
-		logger:      logger,
+		log:         log,
 		isUIEnabled: isUIEnabled,
+		fs:          realFileSystem{},
 	}, nil
 }
 
+// Returns something that can find the given tunnel's credentials file.
+func (sc *subcommandContext) credentialFinder(tunnelID uuid.UUID) CredFinder {
+	if path := sc.c.String(CredFileFlag); path != "" {
+		return newStaticPath(path, sc.fs)
+	}
+	return newSearchByID(tunnelID, sc.c, sc.log, sc.fs)
+}
+
 type userCredential struct {
 	cert     *certutil.OriginCert
 	certPath string
@@ -62,7 +75,15 @@ func (sc *subcommandContext) client() (tunnelstore.Client, error) {
 		return nil, err
 	}
 	userAgent := fmt.Sprintf("cloudflared/%s", version)
-	client, err := tunnelstore.NewRESTClient(sc.c.String("api-url"), credential.cert.AccountID, credential.cert.ZoneID, credential.cert.ServiceKey, userAgent, sc.logger)
+	client, err := tunnelstore.NewRESTClient(
+		sc.c.String("api-url"),
+		credential.cert.AccountID,
+		credential.cert.ZoneID,
+		credential.cert.ServiceKey,
+		userAgent,
+		sc.log,
+	)
+
 	if err != nil {
 		return nil, err
 	}
@@ -72,11 +93,16 @@ func (sc *subcommandContext) client() (tunnelstore.Client, error) {
 
 func (sc *subcommandContext) credential() (*userCredential, error) {
 	if sc.userCredential == nil {
-		originCertPath, err := findOriginCert(sc.c, sc.logger)
+		originCertPath := sc.c.String("origincert")
+		originCertLog := sc.log.With().
+			Str(LogFieldOriginCertPath, originCertPath).
+			Logger()
+
+		originCertPath, err := findOriginCert(originCertPath, &originCertLog)
 		if err != nil {
 			return nil, errors.Wrap(err, "Error locating origin cert")
 		}
-		blocks, err := readOriginCert(originCertPath, sc.logger)
+		blocks, err := readOriginCert(originCertPath)
 		if err != nil {
 			return nil, errors.Wrapf(err, "Can't read origin cert from %s", originCertPath)
 		}
@@ -98,52 +124,30 @@ func (sc *subcommandContext) credential() (*userCredential, error) {
 	return sc.userCredential, nil
 }
 
-func (sc *subcommandContext) readTunnelCredentials(tunnelID uuid.UUID) (*pogs.TunnelAuth, error) {
-	filePath, err := sc.tunnelCredentialsPath(tunnelID)
+func (sc *subcommandContext) readTunnelCredentials(credFinder CredFinder) (connection.Credentials, error) {
+	filePath, err := credFinder.Path()
 	if err != nil {
-		return nil, err
+		return connection.Credentials{}, err
 	}
-	body, err := ioutil.ReadFile(filePath)
+	body, err := sc.fs.readFile(filePath)
 	if err != nil {
-		return nil, errors.Wrapf(err, "couldn't read tunnel credentials from %v", filePath)
+		return connection.Credentials{}, errors.Wrapf(err, "couldn't read tunnel credentials from %v", filePath)
 	}
 
-	var auth pogs.TunnelAuth
-	if err = json.Unmarshal(body, &auth); err != nil {
-		return nil, err
+	var credentials connection.Credentials
+	if err = json.Unmarshal(body, &credentials); err != nil {
+		if strings.HasSuffix(filePath, ".pem") {
+			return connection.Credentials{}, fmt.Errorf("The tunnel credentials file should be .json but you gave a .pem. " +
+				"The tunnel credentials file was originally created by `cloudflared tunnel create`. " +
+				"You may have accidentally used the filepath to cert.pem, which is generated by `cloudflared tunnel " +
+				"login`.")
+		}
+		return connection.Credentials{}, errInvalidJSONCredential{path: filePath, err: err}
 	}
-	return &auth, nil
+	return credentials, nil
 }
 
-func (sc *subcommandContext) tunnelCredentialsPath(tunnelID uuid.UUID) (string, error) {
-	if filePath := sc.c.String("credentials-file"); filePath != "" {
-		if validFilePath(filePath) {
-			return filePath, nil
-		}
-	}
-
-	// Fallback to look for tunnel credentials in the origin cert directory
-	if originCertPath, err := findOriginCert(sc.c, sc.logger); err == nil {
-		originCertDir := filepath.Dir(originCertPath)
-		if filePath, err := tunnelFilePath(tunnelID, originCertDir); err == nil {
-			if validFilePath(filePath) {
-				return filePath, nil
-			}
-		}
-	}
-
-	// Last resort look under default config directories
-	for _, configDir := range config.DefaultConfigSearchDirectories() {
-		if filePath, err := tunnelFilePath(tunnelID, configDir); err == nil {
-			if validFilePath(filePath) {
-				return filePath, nil
-			}
-		}
-	}
-	return "", fmt.Errorf("Tunnel credentials file not found")
-}
-
-func (sc *subcommandContext) create(name string) (*tunnelstore.Tunnel, error) {
+func (sc *subcommandContext) create(name string, credentialsOutputPath string) (*tunnelstore.Tunnel, error) {
 	client, err := sc.client()
 	if err != nil {
 		return nil, errors.Wrap(err, "couldn't create client to talk to Argo Tunnel backend")
@@ -163,7 +167,14 @@ func (sc *subcommandContext) create(name string) (*tunnelstore.Tunnel, error) {
 	if err != nil {
 		return nil, err
 	}
-	if writeFileErr := writeTunnelCredentials(tunnel.ID, credential.cert.AccountID, credential.certPath, tunnelSecret, sc.logger); err != nil {
+	tunnelCredentials := connection.Credentials{
+		AccountTag:   credential.cert.AccountID,
+		TunnelSecret: tunnelSecret,
+		TunnelID:     tunnel.ID,
+		TunnelName:   name,
+	}
+	filePath, writeFileErr := writeTunnelCredentials(credential.certPath, credentialsOutputPath, &tunnelCredentials)
+	if writeFileErr != nil {
 		var errorLines []string
 		errorLines = append(errorLines, fmt.Sprintf("Your tunnel '%v' was created with ID %v. However, cloudflared couldn't write to the tunnel credentials file at %v.json.", tunnel.Name, tunnel.ID, tunnel.ID))
 		errorLines = append(errorLines, fmt.Sprintf("The file-writing error is: %v", writeFileErr))
@@ -176,12 +187,13 @@ func (sc *subcommandContext) create(name string) (*tunnelstore.Tunnel, error) {
 		errorMsg := strings.Join(errorLines, "\n")
 		return nil, errors.New(errorMsg)
 	}
+	sc.log.Info().Msgf("Tunnel credentials written to %v. cloudflared chose this file based on where your origin certificate was found. Keep this file secret. To revoke these credentials, delete the tunnel.", filePath)
 
 	if outputFormat := sc.c.String(outputFormatFlag.Name); outputFormat != "" {
 		return nil, renderOutput(outputFormat, &tunnel)
 	}
 
-	sc.logger.Infof("Created tunnel %s with id %s", tunnel.Name, tunnel.ID)
+	sc.log.Info().Msgf("Created tunnel %s with id %s", tunnel.Name, tunnel.ID)
 	return tunnel, nil
 }
 
@@ -211,13 +223,8 @@ func (sc *subcommandContext) delete(tunnelIDs []uuid.UUID) error {
 		if !tunnel.DeletedAt.IsZero() {
 			return fmt.Errorf("Tunnel %s has already been deleted", tunnel.ID)
 		}
-		// Check if tunnel has existing connections and if force flag is set, cleanup connections
-		if len(tunnel.Connections) > 0 {
-			if !forceFlagSet {
-				return fmt.Errorf("You can not delete tunnel %s because it has active connections. To see connections run the 'list' command. If you believe the tunnel is not active, you can use a -f / --force flag with this command.", id)
-			}
-
-			if err := client.CleanupConnections(tunnel.ID); err != nil {
+		if forceFlagSet {
+			if err := client.CleanupConnections(tunnel.ID, tunnelstore.NewCleanupParams()); err != nil {
 				return errors.Wrapf(err, "Error cleaning up connections for tunnel %s", tunnel.ID)
 			}
 		}
@@ -226,45 +233,68 @@ func (sc *subcommandContext) delete(tunnelIDs []uuid.UUID) error {
 			return errors.Wrapf(err, "Error deleting tunnel %s", tunnel.ID)
 		}
 
-		tunnelCredentialsPath, err := sc.tunnelCredentialsPath(tunnel.ID)
-		if err != nil {
-			sc.logger.Infof("Cannot locate tunnel credentials to delete, error: %v. Please delete the file manually", err)
-			return nil
-		}
-
-		if err = os.Remove(tunnelCredentialsPath); err != nil {
-			sc.logger.Infof("Cannot delete tunnel credentials, error: %v. Please delete the file manually", err)
+		credFinder := sc.credentialFinder(id)
+		if tunnelCredentialsPath, err := credFinder.Path(); err == nil {
+			if err = os.Remove(tunnelCredentialsPath); err != nil {
+				sc.log.Info().Msgf("Tunnel %v was deleted, but we could not remove its credentials file  %s: %s. Consider deleting this file manually.", id, tunnelCredentialsPath, err)
+			}
 		}
 	}
 	return nil
 }
 
+// findCredentials will choose the right way to find the credentials file, find it,
+// and add the TunnelID into any old credentials (generated before TUN-3581 added the `TunnelID`
+// field to credentials files)
+func (sc *subcommandContext) findCredentials(tunnelID uuid.UUID) (connection.Credentials, error) {
+	credFinder := sc.credentialFinder(tunnelID)
+	credentials, err := sc.readTunnelCredentials(credFinder)
+	// This line ensures backwards compatibility with credentials files generated before
+	// TUN-3581. Those old credentials files don't have a TunnelID field, so we enrich the struct
+	// with the ID, which we have already resolved from the user input.
+	credentials.TunnelID = tunnelID
+	return credentials, err
+}
+
 func (sc *subcommandContext) run(tunnelID uuid.UUID) error {
-	credentials, err := sc.readTunnelCredentials(tunnelID)
+	credentials, err := sc.findCredentials(tunnelID)
 	if err != nil {
+		if e, ok := err.(errInvalidJSONCredential); ok {
+			sc.log.Error().Msgf("The credentials file at %s contained invalid JSON. This is probably caused by passing the wrong filepath. Reminder: the credentials file is a .json file created via `cloudflared tunnel create`.", e.path)
+			sc.log.Error().Msgf("Invalid JSON when parsing credentials file: %s", e.err.Error())
+		}
 		return err
 	}
 
 	return StartServer(
 		sc.c,
 		version,
-		shutdownC,
-		graceShutdownC,
-		&origin.NamedTunnelConfig{Auth: *credentials, ID: tunnelID},
-		sc.logger,
+		&connection.NamedTunnelConfig{Credentials: credentials},
+		sc.log,
 		sc.isUIEnabled,
 	)
 }
 
 func (sc *subcommandContext) cleanupConnections(tunnelIDs []uuid.UUID) error {
+	params := tunnelstore.NewCleanupParams()
+	extraLog := ""
+	if connector := sc.c.String("connector-id"); connector != "" {
+		connectorID, err := uuid.Parse(connector)
+		if err != nil {
+			return errors.Wrapf(err, "%s is not a valid client ID (must be a UUID)", connector)
+		}
+		params.ForClient(connectorID)
+		extraLog = fmt.Sprintf(" for connector-id %s", connectorID.String())
+	}
+
 	client, err := sc.client()
 	if err != nil {
 		return err
 	}
 	for _, tunnelID := range tunnelIDs {
-		sc.logger.Infof("Cleanup connection for tunnel %s", tunnelID)
-		if err := client.CleanupConnections(tunnelID); err != nil {
-			sc.logger.Errorf("Error cleaning up connections for tunnel %v, error :%v", tunnelID, err)
+		sc.log.Info().Msgf("Cleanup connection for tunnel %s%s", tunnelID, extraLog)
+		if err := client.CleanupConnections(tunnelID, params); err != nil {
+			sc.log.Error().Msgf("Error cleaning up connections for tunnel %v, error :%v", tunnelID, err)
 		}
 	}
 	return nil
@@ -279,6 +309,7 @@ func (sc *subcommandContext) route(tunnelID uuid.UUID, r tunnelstore.Route) (tun
 	return client.RouteTunnel(tunnelID, r)
 }
 
+// Query Tunnelstore to find the active tunnel with the given name.
 func (sc *subcommandContext) tunnelActive(name string) (*tunnelstore.Tunnel, bool, error) {
 	filter := tunnelstore.NewFilter()
 	filter.NoDeleted()
@@ -301,6 +332,15 @@ func (sc *subcommandContext) findID(input string) (uuid.UUID, error) {
 		return u, nil
 	}
 
+	// Look up name in the credentials file.
+	credFinder := newStaticPath(sc.c.String(CredFileFlag), sc.fs)
+	if credentials, err := sc.readTunnelCredentials(credFinder); err == nil {
+		if credentials.TunnelID != uuid.Nil && input == credentials.TunnelName {
+			return credentials.TunnelID, nil
+		}
+	}
+
+	// Fall back to querying Tunnelstore.
 	if tunnel, found, err := sc.tunnelActive(input); err != nil {
 		return uuid.Nil, err
 	} else if found {
@@ -314,6 +354,12 @@ func (sc *subcommandContext) findID(input string) (uuid.UUID, error) {
 // one Tunnelstore API call.
 func (sc *subcommandContext) findIDs(inputs []string) ([]uuid.UUID, error) {
 
+	// Shortcut without Tunnelstore call if we find that all inputs are already UUIDs.
+	uuids, err := convertNamesToUuids(inputs, make(map[string]uuid.UUID))
+	if err == nil {
+		return uuids, nil
+	}
+
 	// First, look up all tunnels the user has
 	filter := tunnelstore.NewFilter()
 	filter.NoDeleted()
@@ -333,7 +379,10 @@ func findIDs(tunnels []*tunnelstore.Tunnel, inputs []string) ([]uuid.UUID, error
 		nameToID[tunnel.Name] = tunnel.ID
 	}
 
-	// For each input, try to find the tunnel ID.
+	return convertNamesToUuids(inputs, nameToID)
+}
+
+func convertNamesToUuids(inputs []string, nameToID map[string]uuid.UUID) ([]uuid.UUID, error) {
 	tunnelIDs := make([]uuid.UUID, len(inputs))
 	var badInputs []string
 	for i, input := range inputs {

cmd/cloudflared/tunnel/subcommand_context_teamnet.go

@@ -0,0 +1,42 @@
+package tunnel
+
+import (
+	"net"
+
+	"github.com/cloudflare/cloudflared/teamnet"
+	"github.com/pkg/errors"
+)
+
+const noClientMsg = "error while creating backend client"
+
+func (sc *subcommandContext) listRoutes(filter *teamnet.Filter) ([]*teamnet.DetailedRoute, error) {
+	client, err := sc.client()
+	if err != nil {
+		return nil, errors.Wrap(err, noClientMsg)
+	}
+	return client.ListRoutes(filter)
+}
+
+func (sc *subcommandContext) addRoute(newRoute teamnet.NewRoute) (teamnet.Route, error) {
+	client, err := sc.client()
+	if err != nil {
+		return teamnet.Route{}, errors.Wrap(err, noClientMsg)
+	}
+	return client.AddRoute(newRoute)
+}
+
+func (sc *subcommandContext) deleteRoute(network net.IPNet) error {
+	client, err := sc.client()
+	if err != nil {
+		return errors.Wrap(err, noClientMsg)
+	}
+	return client.DeleteRoute(network)
+}
+
+func (sc *subcommandContext) getRouteByIP(ip net.IP) (teamnet.DetailedRoute, error) {
+	client, err := sc.client()
+	if err != nil {
+		return teamnet.DetailedRoute{}, errors.Wrap(err, noClientMsg)
+	}
+	return client.GetByIP(ip)
+}

cmd/cloudflared/tunnel/subcommand_context_test.go

@@ -1,11 +1,20 @@
 package tunnel
 
 import (
+	"encoding/base64"
+	"flag"
+	"fmt"
 	"reflect"
 	"testing"
+	"time"
 
+	"github.com/rs/zerolog"
+
+	"github.com/cloudflare/cloudflared/connection"
 	"github.com/cloudflare/cloudflared/tunnelstore"
 	"github.com/google/uuid"
+	"github.com/pkg/errors"
+	"github.com/urfave/cli/v2"
 )
 
 func Test_findIDs(t *testing.T) {
@@ -80,3 +89,264 @@ func Test_findIDs(t *testing.T) {
 		})
 	}
 }
+
+type mockFileSystem struct {
+	rf  func(string) ([]byte, error)
+	vfp func(string) bool
+}
+
+func (fs mockFileSystem) validFilePath(path string) bool {
+	return fs.vfp(path)
+}
+
+func (fs mockFileSystem) readFile(filePath string) ([]byte, error) {
+	return fs.rf(filePath)
+}
+
+func Test_subcommandContext_findCredentials(t *testing.T) {
+	type fields struct {
+		c                 *cli.Context
+		log               *zerolog.Logger
+		isUIEnabled       bool
+		fs                fileSystem
+		tunnelstoreClient tunnelstore.Client
+		userCredential    *userCredential
+	}
+	type args struct {
+		tunnelID uuid.UUID
+	}
+	oldCertPath := "old_cert.json"
+	newCertPath := "new_cert.json"
+	accountTag := "0000d4d14e84bd4ae5a6a02e0000ac63"
+	secret := []byte{211, 79, 177, 245, 179, 194, 152, 127, 140, 71, 18, 46, 183, 209, 10, 24, 192, 150, 55, 249, 211, 16, 167, 30, 113, 51, 152, 168, 72, 100, 205, 144}
+	secretB64 := base64.StdEncoding.EncodeToString(secret)
+	tunnelID := uuid.MustParse("df5ed608-b8b4-4109-89f3-9f2cf199df64")
+	name := "mytunnel"
+
+	fs := mockFileSystem{
+		rf: func(filePath string) ([]byte, error) {
+			if filePath == oldCertPath {
+				// An old credentials file created before TUN-3581 added the new fields
+				return []byte(fmt.Sprintf(`{"AccountTag":"%s","TunnelSecret":"%s"}`, accountTag, secretB64)), nil
+			}
+			if filePath == newCertPath {
+				// A new credentials file created after TUN-3581 with its new fields.
+				return []byte(fmt.Sprintf(`{"AccountTag":"%s","TunnelSecret":"%s","TunnelID":"%s","TunnelName":"%s"}`, accountTag, secretB64, tunnelID, name)), nil
+			}
+			return nil, errors.New("file not found")
+		},
+		vfp: func(string) bool { return true },
+	}
+	log := zerolog.Nop()
+
+	tests := []struct {
+		name    string
+		fields  fields
+		args    args
+		want    connection.Credentials
+		wantErr bool
+	}{
+		{
+			name: "Filepath given leads to old credentials file",
+			fields: fields{
+				log: &log,
+				fs:  fs,
+				c: func() *cli.Context {
+					flagSet := flag.NewFlagSet("test0", flag.PanicOnError)
+					flagSet.String(CredFileFlag, oldCertPath, "")
+					c := cli.NewContext(cli.NewApp(), flagSet, nil)
+					_ = c.Set(CredFileFlag, oldCertPath)
+					return c
+				}(),
+			},
+			args: args{
+				tunnelID: tunnelID,
+			},
+			want: connection.Credentials{
+				AccountTag:   accountTag,
+				TunnelID:     tunnelID,
+				TunnelSecret: secret,
+			},
+		},
+		{
+			name: "Filepath given leads to new credentials file",
+			fields: fields{
+				log: &log,
+				fs:  fs,
+				c: func() *cli.Context {
+					flagSet := flag.NewFlagSet("test0", flag.PanicOnError)
+					flagSet.String(CredFileFlag, newCertPath, "")
+					c := cli.NewContext(cli.NewApp(), flagSet, nil)
+					_ = c.Set(CredFileFlag, newCertPath)
+					return c
+				}(),
+			},
+			args: args{
+				tunnelID: tunnelID,
+			},
+			want: connection.Credentials{
+				AccountTag:   accountTag,
+				TunnelID:     tunnelID,
+				TunnelSecret: secret,
+				TunnelName:   name,
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			sc := &subcommandContext{
+				c:                 tt.fields.c,
+				log:               tt.fields.log,
+				isUIEnabled:       tt.fields.isUIEnabled,
+				fs:                tt.fields.fs,
+				tunnelstoreClient: tt.fields.tunnelstoreClient,
+				userCredential:    tt.fields.userCredential,
+			}
+			got, err := sc.findCredentials(tt.args.tunnelID)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("subcommandContext.findCredentials() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("subcommandContext.findCredentials() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+type deleteMockTunnelStore struct {
+	tunnelstore.Client
+	mockTunnels      map[uuid.UUID]mockTunnelBehaviour
+	deletedTunnelIDs []uuid.UUID
+}
+
+type mockTunnelBehaviour struct {
+	tunnel     tunnelstore.Tunnel
+	deleteErr  error
+	cleanupErr error
+}
+
+func newDeleteMockTunnelStore(tunnels ...mockTunnelBehaviour) *deleteMockTunnelStore {
+	mockTunnels := make(map[uuid.UUID]mockTunnelBehaviour)
+	for _, tunnel := range tunnels {
+		mockTunnels[tunnel.tunnel.ID] = tunnel
+	}
+	return &deleteMockTunnelStore{
+		mockTunnels:      mockTunnels,
+		deletedTunnelIDs: make([]uuid.UUID, 0),
+	}
+}
+
+func (d *deleteMockTunnelStore) GetTunnel(tunnelID uuid.UUID) (*tunnelstore.Tunnel, error) {
+	tunnel, ok := d.mockTunnels[tunnelID]
+	if !ok {
+		return nil, fmt.Errorf("Couldn't find tunnel: %v", tunnelID)
+	}
+	return &tunnel.tunnel, nil
+}
+
+func (d *deleteMockTunnelStore) DeleteTunnel(tunnelID uuid.UUID) error {
+	tunnel, ok := d.mockTunnels[tunnelID]
+	if !ok {
+		return fmt.Errorf("Couldn't find tunnel: %v", tunnelID)
+	}
+
+	if tunnel.deleteErr != nil {
+		return tunnel.deleteErr
+	}
+
+	d.deletedTunnelIDs = append(d.deletedTunnelIDs, tunnelID)
+	tunnel.tunnel.DeletedAt = time.Now()
+	delete(d.mockTunnels, tunnelID)
+	return nil
+}
+
+func (d *deleteMockTunnelStore) CleanupConnections(tunnelID uuid.UUID, _ *tunnelstore.CleanupParams) error {
+	tunnel, ok := d.mockTunnels[tunnelID]
+	if !ok {
+		return fmt.Errorf("Couldn't find tunnel: %v", tunnelID)
+	}
+	return tunnel.cleanupErr
+}
+
+func Test_subcommandContext_Delete(t *testing.T) {
+	type fields struct {
+		c                 *cli.Context
+		log               *zerolog.Logger
+		isUIEnabled       bool
+		fs                fileSystem
+		tunnelstoreClient *deleteMockTunnelStore
+		userCredential    *userCredential
+	}
+	type args struct {
+		tunnelIDs []uuid.UUID
+	}
+	newCertPath := "new_cert.json"
+	tunnelID1 := uuid.MustParse("df5ed608-b8b4-4109-89f3-9f2cf199df64")
+	tunnelID2 := uuid.MustParse("af5ed608-b8b4-4109-89f3-9f2cf199df64")
+	log := zerolog.Nop()
+
+	var tests = []struct {
+		name    string
+		fields  fields
+		args    args
+		want    []uuid.UUID
+		wantErr bool
+	}{
+		{
+			name: "clean up continues if credentials are not found",
+			fields: fields{
+				log: &log,
+				fs: mockFileSystem{
+					rf: func(filePath string) ([]byte, error) {
+						return nil, errors.New("file not found")
+					},
+					vfp: func(string) bool { return true },
+				},
+				c: func() *cli.Context {
+					flagSet := flag.NewFlagSet("test0", flag.PanicOnError)
+					flagSet.String(CredFileFlag, newCertPath, "")
+					c := cli.NewContext(cli.NewApp(), flagSet, nil)
+					_ = c.Set(CredFileFlag, newCertPath)
+					return c
+				}(),
+				tunnelstoreClient: newDeleteMockTunnelStore(
+					mockTunnelBehaviour{
+						tunnel: tunnelstore.Tunnel{ID: tunnelID1},
+					},
+					mockTunnelBehaviour{
+						tunnel: tunnelstore.Tunnel{ID: tunnelID2},
+					},
+				),
+			},
+
+			args: args{
+				tunnelIDs: []uuid.UUID{tunnelID1, tunnelID2},
+			},
+			want: []uuid.UUID{tunnelID1, tunnelID2},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			sc := &subcommandContext{
+				c:                 tt.fields.c,
+				log:               tt.fields.log,
+				isUIEnabled:       tt.fields.isUIEnabled,
+				fs:                tt.fields.fs,
+				tunnelstoreClient: tt.fields.tunnelstoreClient,
+				userCredential:    tt.fields.userCredential,
+			}
+			err := sc.delete(tt.args.tunnelIDs)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("subcommandContext.findCredentials() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			got := tt.fields.tunnelstoreClient.deletedTunnelIDs
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("subcommandContext.findCredentials() = %v, want %v", got, tt.want)
+				return
+			}
+		})
+	}
+}

cmd/cloudflared/tunnel/subcommands.go

@@ -17,17 +17,24 @@ import (
 	"github.com/mitchellh/go-homedir"
 	"github.com/pkg/errors"
 	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli/v2/altsrc"
 	"golang.org/x/net/idna"
 	"gopkg.in/yaml.v2"
 
 	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
-	"github.com/cloudflare/cloudflared/logger"
-	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/updater"
+	"github.com/cloudflare/cloudflared/config"
+	"github.com/cloudflare/cloudflared/connection"
 	"github.com/cloudflare/cloudflared/tunnelstore"
 )
 
 const (
-	credFileFlagAlias = "cred-file"
+	allSortByOptions   = "name, id, createdAt, deletedAt, numConnections"
+	connsSortByOptions = "id, startedAt, numConnections, version"
+	CredFileFlagAlias  = "cred-file"
+	CredFileFlag       = "credentials-file"
+
+	LogFieldTunnelID = "tunnelID"
 )
 
 var (
@@ -63,33 +70,84 @@ var (
 		Aliases: []string{"o"},
 		Usage:   "Render output using given `FORMAT`. Valid options are 'json' or 'yaml'",
 	}
-	forceFlag = &cli.BoolFlag{
+	sortByFlag = &cli.StringFlag{
+		Name:    "sort-by",
+		Value:   "name",
+		Usage:   fmt.Sprintf("Sorts the list of tunnels by the given field. Valid options are {%s}", allSortByOptions),
+		EnvVars: []string{"TUNNEL_LIST_SORT_BY"},
+	}
+	invertSortFlag = &cli.BoolFlag{
+		Name:    "invert-sort",
+		Usage:   "Inverts the sort order of the tunnel list.",
+		EnvVars: []string{"TUNNEL_LIST_INVERT_SORT"},
+	}
+	forceFlag = altsrc.NewBoolFlag(&cli.BoolFlag{
 		Name:    "force",
 		Aliases: []string{"f"},
 		Usage: "By default, if a tunnel is currently being run from a cloudflared, you can't " +
 			"simultaneously rerun it again from a second cloudflared. The --force flag lets you " +
 			"overwrite the previous tunnel. If you want to use a single hostname with multiple " +
 			"tunnels, you can do so with Cloudflare's Load Balancer product.",
-	}
-	credentialsFileFlag = &cli.StringFlag{
-		Name:    "credentials-file",
-		Aliases: []string{credFileFlagAlias},
-		Usage:   "File path of tunnel credentials",
-	}
+	})
+	featuresFlag = altsrc.NewStringSliceFlag(&cli.StringSliceFlag{
+		Name:    "features",
+		Aliases: []string{"F"},
+		Usage:   "Opt into various features that are still being developed or tested.",
+	})
+	credentialsFileFlag = altsrc.NewStringFlag(&cli.StringFlag{
+		Name:    CredFileFlag,
+		Aliases: []string{CredFileFlagAlias},
+		Usage:   "Filepath at which to read/write the tunnel credentials",
+		EnvVars: []string{"TUNNEL_CRED_FILE"},
+	})
 	forceDeleteFlag = &cli.BoolFlag{
 		Name:    "force",
 		Aliases: []string{"f"},
-		Usage:   "Allows you to delete a tunnel, even if it has active connections.",
+		Usage: "Cleans up any stale connections before the tunnel is deleted. cloudflared will not " +
+			"delete a tunnel with connections without this flag.",
+		EnvVars: []string{"TUNNEL_RUN_FORCE_OVERWRITE"},
+	}
+	selectProtocolFlag = altsrc.NewStringFlag(&cli.StringFlag{
+		Name:    "protocol",
+		Value:   "h2mux",
+		Aliases: []string{"p"},
+		Usage:   fmt.Sprintf("Protocol implementation to connect with Cloudflare's edge network. %s", connection.AvailableProtocolFlagMessage),
+		EnvVars: []string{"TUNNEL_TRANSPORT_PROTOCOL"},
+		Hidden:  true,
+	})
+	sortInfoByFlag = &cli.StringFlag{
+		Name:    "sort-by",
+		Value:   "createdAt",
+		Usage:   fmt.Sprintf("Sorts the list of connections of a tunnel by the given field. Valid options are {%s}", connsSortByOptions),
+		EnvVars: []string{"TUNNEL_INFO_SORT_BY"},
+	}
+	invertInfoSortFlag = &cli.BoolFlag{
+		Name:    "invert-sort",
+		Usage:   "Inverts the sort order of the tunnel info.",
+		EnvVars: []string{"TUNNEL_INFO_INVERT_SORT"},
+	}
+	cleanupClientFlag = &cli.StringFlag{
+		Name:    "connector-id",
+		Aliases: []string{"c"},
+		Usage:   `Constraints the cleanup to stop the connections of a single Connector (by its ID). You can find the various Connectors (and their IDs) currently connected to your tunnel via 'cloudflared tunnel info <name>'.`,
+		EnvVars: []string{"TUNNEL_CLEANUP_CONNECTOR"},
 	}
 )
 
 func buildCreateCommand() *cli.Command {
 	return &cli.Command{
 		Name:      "create",
-		Action:    cliutil.ErrorHandler(createCommand),
+		Action:    cliutil.ConfiguredAction(createCommand),
 		Usage:     "Create a new tunnel with given name",
-		ArgsUsage: "TUNNEL-NAME",
-		Flags:     []cli.Flag{outputFormatFlag},
+		UsageText: "cloudflared tunnel [tunnel command options] create [subcommand options] NAME",
+		Description: `Creates a tunnel, registers it with Cloudflare edge and generates credential file used to run this tunnel.
+  Use "cloudflared tunnel route" subcommand to map a DNS name to this tunnel and "cloudflared tunnel run" to start the connection.
+
+  For example, to create a tunnel named 'my-tunnel' run:
+
+  $ cloudflared tunnel create my-tunnel`,
+		Flags:              []cli.Flag{outputFormatFlag, credentialsFileFlag},
+		CustomHelpTemplate: commandHelpTemplate(),
 	}
 }
 
@@ -111,7 +169,10 @@ func createCommand(c *cli.Context) error {
 	}
 	name := c.Args().First()
 
-	_, err = sc.create(name)
+	warningChecker := updater.StartWarningCheck(c)
+	defer warningChecker.LogWarningIfAny(sc.log)
+
+	_, err = sc.create(name, c.String(CredFileFlag))
 	return errors.Wrap(err, "failed to create tunnel")
 }
 
@@ -121,39 +182,47 @@ func tunnelFilePath(tunnelID uuid.UUID, directory string) (string, error) {
 	return homedir.Expand(filePath)
 }
 
-func writeTunnelCredentials(tunnelID uuid.UUID, accountID, originCertPath string, tunnelSecret []byte, logger logger.Service) error {
-	originCertDir := filepath.Dir(originCertPath)
-	filePath, err := tunnelFilePath(tunnelID, originCertDir)
-	if err != nil {
-		return err
+// If an `outputFile` is given, write the credentials there.
+// Otherwise, write it to the same directory as the originCert,
+// with the filename `<tunnel id>.json`.
+func writeTunnelCredentials(
+	originCertPath, outputFile string,
+	credentials *connection.Credentials,
+) (filePath string, err error) {
+	filePath = outputFile
+	if outputFile == "" {
+		originCertDir := filepath.Dir(originCertPath)
+		filePath, err = tunnelFilePath(credentials.TunnelID, originCertDir)
 	}
-	body, err := json.Marshal(pogs.TunnelAuth{
-		AccountTag:   accountID,
-		TunnelSecret: tunnelSecret,
-	})
 	if err != nil {
-		return errors.Wrap(err, "Unable to marshal tunnel credentials to JSON")
+		return "", err
 	}
-	logger.Infof("Writing tunnel credentials to %v. cloudflared chose this file based on where your origin certificate was found.", filePath)
-	logger.Infof("Keep this file secret. To revoke these credentials, delete the tunnel.")
-	return ioutil.WriteFile(filePath, body, 400)
-}
-
-func validFilePath(path string) bool {
-	fileStat, err := os.Stat(path)
+	// Write the name and ID to the file too
+	body, err := json.Marshal(credentials)
 	if err != nil {
-		return false
+		return "", errors.Wrap(err, "Unable to marshal tunnel credentials to JSON")
 	}
-	return !fileStat.IsDir()
+	return filePath, ioutil.WriteFile(filePath, body, 400)
 }
 
 func buildListCommand() *cli.Command {
 	return &cli.Command{
-		Name:      "list",
-		Action:    cliutil.ErrorHandler(listCommand),
-		Usage:     "List existing tunnels",
-		ArgsUsage: " ",
-		Flags:     []cli.Flag{outputFormatFlag, showDeletedFlag, listNameFlag, listExistedAtFlag, listIDFlag, showRecentlyDisconnected},
+		Name:        "list",
+		Action:      cliutil.ConfiguredAction(listCommand),
+		Usage:       "List existing tunnels",
+		UsageText:   "cloudflared tunnel [tunnel command options] list [subcommand options]",
+		Description: "cloudflared tunnel list will display all active tunnels, their created time and associated connections. Use -d flag to include deleted tunnels. See the list of options to filter the list",
+		Flags: []cli.Flag{
+			outputFormatFlag,
+			showDeletedFlag,
+			listNameFlag,
+			listExistedAtFlag,
+			listIDFlag,
+			showRecentlyDisconnected,
+			sortByFlag,
+			invertSortFlag,
+		},
+		CustomHelpTemplate: commandHelpTemplate(),
 	}
 }
 
@@ -163,6 +232,9 @@ func listCommand(c *cli.Context) error {
 		return err
 	}
 
+	warningChecker := updater.StartWarningCheck(c)
+	defer warningChecker.LogWarningIfAny(sc.log)
+
 	filter := tunnelstore.NewFilter()
 	if !c.Bool("show-deleted") {
 		filter.NoDeleted()
@@ -186,32 +258,57 @@ func listCommand(c *cli.Context) error {
 		return err
 	}
 
+	// Sort the tunnels
+	sortBy := c.String("sort-by")
+	invalidSortField := false
+	sort.Slice(tunnels, func(i, j int) bool {
+		cmp := func() bool {
+			switch sortBy {
+			case "name":
+				return tunnels[i].Name < tunnels[j].Name
+			case "id":
+				return tunnels[i].ID.String() < tunnels[j].ID.String()
+			case "createdAt":
+				return tunnels[i].CreatedAt.Unix() < tunnels[j].CreatedAt.Unix()
+			case "deletedAt":
+				return tunnels[i].DeletedAt.Unix() < tunnels[j].DeletedAt.Unix()
+			case "numConnections":
+				return len(tunnels[i].Connections) < len(tunnels[j].Connections)
+			default:
+				invalidSortField = true
+				return tunnels[i].Name < tunnels[j].Name
+			}
+		}()
+		if c.Bool("invert-sort") {
+			return !cmp
+		}
+		return cmp
+	})
+	if invalidSortField {
+		sc.log.Error().Msgf("%s is not a valid sort field. Valid sort fields are %s. Defaulting to 'name'.", sortBy, allSortByOptions)
+	}
+
 	if outputFormat := c.String(outputFormatFlag.Name); outputFormat != "" {
 		return renderOutput(outputFormat, tunnels)
 	}
 
 	if len(tunnels) > 0 {
-		fmtAndPrintTunnelList(tunnels, c.Bool("show-recently-disconnected"))
+		formatAndPrintTunnelList(tunnels, c.Bool("show-recently-disconnected"))
 	} else {
 		fmt.Println("You have no tunnels, use 'cloudflared tunnel create' to define a new tunnel")
 	}
+
 	return nil
 }
 
-func fmtAndPrintTunnelList(tunnels []*tunnelstore.Tunnel, showRecentlyDisconnected bool) {
-	const (
-		minWidth = 0
-		tabWidth = 8
-		padding  = 1
-		padChar  = ' '
-		flags    = 0
-	)
-
-	writer := tabwriter.NewWriter(os.Stdout, minWidth, tabWidth, padding, padChar, flags)
+func formatAndPrintTunnelList(tunnels []*tunnelstore.Tunnel, showRecentlyDisconnected bool) {
+	writer := tabWriter()
 	defer writer.Flush()
 
+	_, _ = fmt.Fprintln(writer, "You can obtain more detailed information for each tunnel with `cloudflared tunnel info <name/uuid>`")
+
 	// Print column headers with tabbed columns
-	fmt.Fprintln(writer, "ID\tNAME\tCREATED\tCONNECTIONS\t")
+	_, _ = fmt.Fprintln(writer, "ID\tNAME\tCREATED\tCONNECTIONS\t")
 
 	// Loop through tunnels, create formatted string for each, and print using tabwriter
 	for _, t := range tunnels {
@@ -222,7 +319,7 @@ func fmtAndPrintTunnelList(tunnels []*tunnelstore.Tunnel, showRecentlyDisconnect
 			t.CreatedAt.Format(time.RFC3339),
 			fmtConnections(t.Connections, showRecentlyDisconnected),
 		)
-		fmt.Fprintln(writer, formattedStr)
+		_, _ = fmt.Fprintln(writer, formattedStr)
 	}
 }
 
@@ -251,13 +348,161 @@ func fmtConnections(connections []tunnelstore.Connection, showRecentlyDisconnect
 	return strings.Join(output, ", ")
 }
 
+func buildInfoCommand() *cli.Command {
+	return &cli.Command{
+		Name:        "info",
+		Action:      cliutil.ConfiguredAction(tunnelInfo),
+		Usage:       "List details about the active connectors for a tunnel",
+		UsageText:   "cloudflared tunnel [tunnel command options] info [subcommand options] [TUNNEL]",
+		Description: "cloudflared tunnel info displays details about the active connectors for a given tunnel (identified by name or uuid).",
+		Flags: []cli.Flag{
+			outputFormatFlag,
+			showRecentlyDisconnected,
+			sortInfoByFlag,
+			invertInfoSortFlag,
+		},
+		CustomHelpTemplate: commandHelpTemplate(),
+	}
+}
+
+func tunnelInfo(c *cli.Context) error {
+	sc, err := newSubcommandContext(c)
+	if err != nil {
+		return err
+	}
+
+	warningChecker := updater.StartWarningCheck(c)
+	defer warningChecker.LogWarningIfAny(sc.log)
+
+	if c.NArg() > 1 {
+		return cliutil.UsageError(`"cloudflared tunnel info" accepts only one argument, the ID or name of the tunnel to run.`)
+	}
+	tunnelID, err := sc.findID(c.Args().First())
+	if err != nil {
+		return errors.Wrap(err, "error parsing tunnel ID")
+	}
+
+	client, err := sc.client()
+	if err != nil {
+		return err
+	}
+
+	clients, err := client.ListActiveClients(tunnelID)
+	if err != nil {
+		return err
+	}
+
+	sortBy := c.String("sort-by")
+	invalidSortField := false
+	sort.Slice(clients, func(i, j int) bool {
+		cmp := func() bool {
+			switch sortBy {
+			case "id":
+				return clients[i].ID.String() < clients[j].ID.String()
+			case "createdAt":
+				return clients[i].RunAt.Unix() < clients[j].RunAt.Unix()
+			case "numConnections":
+				return len(clients[i].Connections) < len(clients[j].Connections)
+			case "version":
+				return clients[i].Version < clients[j].Version
+			default:
+				invalidSortField = true
+				return clients[i].RunAt.Unix() < clients[j].RunAt.Unix()
+			}
+		}()
+		if c.Bool("invert-sort") {
+			return !cmp
+		}
+		return cmp
+	})
+	if invalidSortField {
+		sc.log.Error().Msgf("%s is not a valid sort field. Valid sort fields are %s. Defaulting to 'name'.", sortBy, connsSortByOptions)
+	}
+
+	tunnel, err := getTunnel(sc, tunnelID)
+	if err != nil {
+		return err
+	}
+	info := Info{
+		tunnel.ID,
+		tunnel.Name,
+		tunnel.CreatedAt,
+		clients,
+	}
+
+	if outputFormat := c.String(outputFormatFlag.Name); outputFormat != "" {
+		return renderOutput(outputFormat, info)
+	}
+
+	if len(clients) > 0 {
+		formatAndPrintConnectionsList(info, c.Bool("show-recently-disconnected"))
+	} else {
+		fmt.Printf("Your tunnel %s does not have any active connection.\n", tunnelID)
+	}
+
+	return nil
+}
+
+func getTunnel(sc *subcommandContext, tunnelID uuid.UUID) (*tunnelstore.Tunnel, error) {
+	filter := tunnelstore.NewFilter()
+	filter.ByTunnelID(tunnelID)
+	tunnels, err := sc.list(filter)
+	if err != nil {
+		return nil, err
+	}
+	if len(tunnels) != 1 {
+		return nil, errors.Errorf("Expected to find a single tunnel with uuid %v but found %d tunnels.", tunnelID, len(tunnels))
+	}
+	return tunnels[0], nil
+}
+
+func formatAndPrintConnectionsList(tunnelInfo Info, showRecentlyDisconnected bool) {
+	writer := tabWriter()
+	defer writer.Flush()
+
+	_, _ = fmt.Fprintf(writer, "NAME:     %s\nID:       %s\nCREATED:  %s\n\n", tunnelInfo.Name, tunnelInfo.ID, tunnelInfo.CreatedAt)
+
+	_, _ = fmt.Fprintln(writer, "CONNECTOR ID\tCREATED\tARCHITECTURE\tVERSION\tORIGIN IP\tEDGE\t")
+	for _, c := range tunnelInfo.Connectors {
+		var originIp = ""
+		if len(c.Connections) > 0 {
+			originIp = c.Connections[0].OriginIP.String()
+		}
+		formattedStr := fmt.Sprintf(
+			"%s\t%s\t%s\t%s\t%s\t%s\t",
+			c.ID,
+			c.RunAt.Format(time.RFC3339),
+			c.Arch,
+			c.Version,
+			originIp,
+			fmtConnections(c.Connections, showRecentlyDisconnected),
+		)
+		_, _ = fmt.Fprintln(writer, formattedStr)
+	}
+}
+
+func tabWriter() *tabwriter.Writer {
+	const (
+		minWidth = 0
+		tabWidth = 8
+		padding  = 1
+		padChar  = ' '
+		flags    = 0
+	)
+
+	writer := tabwriter.NewWriter(os.Stdout, minWidth, tabWidth, padding, padChar, flags)
+	return writer
+}
+
 func buildDeleteCommand() *cli.Command {
 	return &cli.Command{
-		Name:      "delete",
-		Action:    cliutil.ErrorHandler(deleteCommand),
-		Usage:     "Delete existing tunnel by UUID or name",
-		ArgsUsage: "TUNNEL",
-		Flags:     []cli.Flag{credentialsFileFlag, forceDeleteFlag},
+		Name:               "delete",
+		Action:             cliutil.ConfiguredAction(deleteCommand),
+		Usage:              "Delete existing tunnel by UUID or name",
+		UsageText:          "cloudflared tunnel [tunnel command options] delete [subcommand options] TUNNEL",
+		Description:        "cloudflared tunnel delete will delete tunnels with the given tunnel UUIDs or names. A tunnel cannot be deleted if it has active connections. To delete the tunnel unconditionally, use -f flag.",
+		Flags:              []cli.Flag{credentialsFileFlag, forceDeleteFlag},
+		CustomHelpTemplate: commandHelpTemplate(),
 	}
 }
 
@@ -271,6 +516,9 @@ func deleteCommand(c *cli.Context) error {
 		return cliutil.UsageError(`"cloudflared tunnel delete" requires at least 1 argument, the ID or name of the tunnel to delete.`)
 	}
 
+	warningChecker := updater.StartWarningCheck(c)
+	defer warningChecker.LogWarningIfAny(sc.log)
+
 	tunnelIDs, err := sc.findIDs(c.Args().Slice())
 	if err != nil {
 		return err
@@ -296,45 +544,26 @@ func buildRunCommand() *cli.Command {
 	flags := []cli.Flag{
 		forceFlag,
 		credentialsFileFlag,
-		urlFlag(false),
-		helloWorldFlag(false),
-		createSocks5Flag(false),
+		selectProtocolFlag,
+		featuresFlag,
 	}
-	flags = append(flags, sshFlags(false)...)
-	var runCommandHelpTemplate = `NAME:
-   {{.HelpName}} - {{.Usage}}
-
-USAGE:
-   {{.UsageText}}
-
-DESCRIPTION:
-   {{.Description}}
-
-TUNNEL COMMAND OPTIONS:
-	See cloudflared tunnel -h
-
-RUN COMMAND OPTIONS:
-   {{range .VisibleFlags}}{{.}}
-   {{end}}
-`
+	flags = append(flags, configureProxyFlags(false)...)
 	return &cli.Command{
 		Name:      "run",
-		Action:    cliutil.ErrorHandler(runCommand),
+		Action:    cliutil.ConfiguredAction(runCommand),
 		Usage:     "Proxy a local web server by running the given tunnel",
-		UsageText: "cloudflared tunnel [tunnel command options] run [run command options]",
-		ArgsUsage: "TUNNEL",
-		Description: `Runs the tunnel identified by name or UUUD, creating a highly available connection 
-   between your server and the Cloudflare edge.
+		UsageText: "cloudflared tunnel [tunnel command options] run [subcommand options] [TUNNEL]",
+		Description: `Runs the tunnel identified by name or UUUD, creating highly available connections
+  between your server and the Cloudflare edge. You can provide name or UUID of tunnel to run either as the
+  last command line argument or in the configuration file using "tunnel: TUNNEL".
 
-   This command requires the tunnel credentials file created when "cloudflared tunnel create" was run, 
-   however it does not need access to cert.pem from "cloudflared login". If you experience problems running
-   the tunnel, "cloudflared tunnel cleanup" may help by removing any old connection records.
-
-   All the flags from the tunnel command are available, note that they have to be specified before the run command. There are flags defined both in tunnel and run command. The one in run command will take precedence.
-   For example cloudflared tunnel --url localhost:3000 run --url localhost:5000 <TUNNEL ID> will proxy requests to localhost:5000.
+  This command requires the tunnel credentials file created when "cloudflared tunnel create" was run,
+  however it does not need access to cert.pem from "cloudflared login" if you identify the tunnel by UUID.
+  If you experience other problems running the tunnel, "cloudflared tunnel cleanup" may help by removing
+  any old connection records.
 `,
 		Flags:              flags,
-		CustomHelpTemplate: runCommandHelpTemplate,
+		CustomHelpTemplate: commandHelpTemplate(),
 	}
 }
 
@@ -344,23 +573,41 @@ func runCommand(c *cli.Context) error {
 		return err
 	}
 
-	if c.NArg() != 1 {
-		return cliutil.UsageError(`"cloudflared tunnel run" requires exactly 1 argument, the ID or name of the tunnel to run.`)
+	if c.NArg() > 1 {
+		return cliutil.UsageError(`"cloudflared tunnel run" accepts only one argument, the ID or name of the tunnel to run.`)
 	}
-	tunnelID, err := sc.findID(c.Args().First())
+	tunnelRef := c.Args().First()
+	if tunnelRef == "" {
+		// see if tunnel id was in the config file
+		tunnelRef = config.GetConfiguration().TunnelID
+		if tunnelRef == "" {
+			return cliutil.UsageError(`"cloudflared tunnel run" requires the ID or name of the tunnel to run as the last command line argument or in the configuration file.`)
+		}
+	}
+
+	return runNamedTunnel(sc, tunnelRef)
+}
+
+func runNamedTunnel(sc *subcommandContext, tunnelRef string) error {
+	tunnelID, err := sc.findID(tunnelRef)
 	if err != nil {
 		return errors.Wrap(err, "error parsing tunnel ID")
 	}
 
+	sc.log.Info().Str(LogFieldTunnelID, tunnelID.String()).Msg("Starting tunnel")
+
 	return sc.run(tunnelID)
 }
 
 func buildCleanupCommand() *cli.Command {
 	return &cli.Command{
-		Name:      "cleanup",
-		Action:    cliutil.ErrorHandler(cleanupCommand),
-		Usage:     "Cleanup tunnel connections",
-		ArgsUsage: "TUNNEL",
+		Name:               "cleanup",
+		Action:             cliutil.ConfiguredAction(cleanupCommand),
+		Usage:              "Cleanup tunnel connections",
+		UsageText:          "cloudflared tunnel [tunnel command options] cleanup [subcommand options] TUNNEL",
+		Description:        "Delete connections for tunnels with the given UUIDs or names.",
+		Flags:              []cli.Flag{cleanupClientFlag},
+		CustomHelpTemplate: commandHelpTemplate(),
 	}
 }
 
@@ -384,16 +631,29 @@ func cleanupCommand(c *cli.Context) error {
 
 func buildRouteCommand() *cli.Command {
 	return &cli.Command{
-		Name:   "route",
-		Action: cliutil.ErrorHandler(routeCommand),
-		Usage:  "Define what hostname or load balancer can route to this tunnel",
-		Description: `The route defines what hostname or load balancer will proxy requests to this tunnel.
+		Name:      "route",
+		Action:    cliutil.ConfiguredAction(routeCommand),
+		Usage:     "Define which traffic routed from Cloudflare edge to this tunnel: requests to a DNS hostname, to a Cloudflare Load Balancer, or traffic originating from Cloudflare WARP clients",
+		UsageText: "cloudflared tunnel [tunnel command options] route [subcommand options] [dns TUNNEL HOSTNAME]|[lb TUNNEL HOSTNAME LB-POOL]|[ip NETWORK TUNNEL]",
+		Description: `The route command defines how Cloudflare will proxy requests to this tunnel.
 
-   To route a hostname by creating a CNAME to tunnel's address:
-      cloudflared tunnel route dns <tunnel ID> <hostname>
-   To use this tunnel as a load balancer origin, creating pool and load balancer if necessary:
-      cloudflared tunnel route lb <tunnel ID> <load balancer name> <load balancer pool>`,
-		ArgsUsage: "dns|lb TUNNEL HOSTNAME [LB-POOL]",
+To route a hostname by creating a DNS CNAME record to a tunnel:
+   cloudflared tunnel route dns <tunnel ID or name> <hostname>
+You can read more at: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/routing-to-tunnel/dns
+
+To use this tunnel as a load balancer origin, creating pool and load balancer if necessary:
+   cloudflared tunnel route lb <tunnel ID or name> <hostname> <load balancer pool>
+You can read more at: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/routing-to-tunnel/lb
+
+For Cloudflare WARP traffic to be routed to your private network, reachable from this tunnel as origins, use:
+   cloudflared tunnel route ip <network CIDR> <tunnel ID or name>
+Further information about managing Cloudflare WARP traffic to your tunnel is available at:
+   cloudflared tunnel route ip --help
+`,
+		CustomHelpTemplate: commandHelpTemplate(),
+		Subcommands: []*cli.Command{
+			buildRouteIPSubcommand(),
+		},
 	}
 }
 
@@ -408,7 +668,7 @@ func dnsRouteFromArg(c *cli.Context) (tunnelstore.Route, error) {
 	userHostname := c.Args().Get(userHostnameIndex)
 	if userHostname == "" {
 		return nil, cliutil.UsageError("The third argument should be the hostname")
-	} else if !validateHostname(userHostname) {
+	} else if !validateHostname(userHostname, true) {
 		return nil, errors.Errorf("%s is not a valid hostname", userHostname)
 	}
 	return tunnelstore.NewDNSRoute(userHostname), nil
@@ -426,14 +686,14 @@ func lbRouteFromArg(c *cli.Context) (tunnelstore.Route, error) {
 	lbName := c.Args().Get(lbNameIndex)
 	if lbName == "" {
 		return nil, cliutil.UsageError("The third argument should be the load balancer name")
-	} else if !validateHostname(lbName) {
+	} else if !validateHostname(lbName, true) {
 		return nil, errors.Errorf("%s is not a valid load balancer name", lbName)
 	}
 
 	lbPool := c.Args().Get(lbPoolIndex)
 	if lbPool == "" {
 		return nil, cliutil.UsageError("The fourth argument should be the pool name")
-	} else if !validateName(lbPool) {
+	} else if !validateName(lbPool, false) {
 		return nil, errors.Errorf("%s is not a valid pool name", lbPool)
 	}
 
@@ -441,19 +701,23 @@ func lbRouteFromArg(c *cli.Context) (tunnelstore.Route, error) {
 }
 
 var nameRegex = regexp.MustCompile("^[_a-zA-Z0-9][-_.a-zA-Z0-9]*$")
+var hostNameRegex = regexp.MustCompile("^[*_a-zA-Z0-9][-_.a-zA-Z0-9]*$")
 
-func validateName(s string) bool {
+func validateName(s string, allowWildcardSubdomain bool) bool {
+	if allowWildcardSubdomain {
+		return hostNameRegex.MatchString(s)
+	}
 	return nameRegex.MatchString(s)
 }
 
-func validateHostname(s string) bool {
+func validateHostname(s string, allowWildcardSubdomain bool) bool {
 	// Slightly stricter than PunyCodeProfile
 	idnaProfile := idna.New(
 		idna.ValidateLabels(true),
 		idna.VerifyDNSLength(true))
 
 	puny, err := idnaProfile.ToASCII(s)
-	return err == nil && validateName(puny)
+	return err == nil && validateName(puny, allowWildcardSubdomain)
 }
 
 func routeCommand(c *cli.Context) error {
@@ -498,6 +762,32 @@ func routeCommand(c *cli.Context) error {
 		return err
 	}
 
-	sc.logger.Infof(res.SuccessSummary())
+	sc.log.Info().Str(LogFieldTunnelID, tunnelID.String()).Msg(res.SuccessSummary())
 	return nil
 }
+
+func commandHelpTemplate() string {
+	var parentFlagsHelp string
+	for _, f := range configureCloudflaredFlags(false) {
+		parentFlagsHelp += fmt.Sprintf(" %s\n\t", f)
+	}
+	for _, f := range configureLoggingFlags(false) {
+		parentFlagsHelp += fmt.Sprintf(" %s\n\t", f)
+	}
+	const template = `NAME:
+	{{.HelpName}} - {{.Usage}}
+
+USAGE:
+	{{.UsageText}}
+
+DESCRIPTION:
+	{{.Description}}
+
+TUNNEL COMMAND OPTIONS:
+	%s
+SUBCOMMAND OPTIONS:
+	{{range .VisibleFlags}}{{.}}
+	{{end}}
+`
+	return fmt.Sprintf(template, parentFlagsHelp)
+}

cmd/cloudflared/tunnel/subcommands_test.go

@@ -6,9 +6,8 @@ import (
 	"testing"
 
 	"github.com/cloudflare/cloudflared/tunnelstore"
-	"github.com/mitchellh/go-homedir"
-
 	"github.com/google/uuid"
+	"github.com/mitchellh/go-homedir"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -117,8 +116,64 @@ func TestValidateName(t *testing.T) {
 		{name: "_ab_c.-d-ef", want: true},
 	}
 	for _, tt := range tests {
-		if got := validateName(tt.name); got != tt.want {
+		if got := validateName(tt.name, false); got != tt.want {
 			t.Errorf("validateName() = %v, want %v", got, tt.want)
 		}
 	}
-}
+}
+
+func Test_validateHostname(t *testing.T) {
+	type args struct {
+		s                      string
+		allowWildcardSubdomain bool
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			name: "Normal",
+			args: args{
+				s:                      "example.com",
+				allowWildcardSubdomain: true,
+			},
+			want: true,
+		},
+		{
+			name: "wildcard subdomain for TUN-358",
+			args: args{
+				s:                      "*.ehrig.io",
+				allowWildcardSubdomain: true,
+			},
+			want: true,
+		},
+		{
+			name: "Misplaced wildcard",
+			args: args{
+				s:                      "subdomain.*.ehrig.io",
+				allowWildcardSubdomain: true,
+			},
+		},
+		{
+			name: "Invalid domain",
+			args: args{
+				s:                      "..",
+				allowWildcardSubdomain: true,
+			},
+		},
+		{
+			name: "Invalid domain",
+			args: args{
+				s: "..",
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := validateHostname(tt.args.s, tt.args.allowWildcardSubdomain); got != tt.want {
+				t.Errorf("validateHostname() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

cmd/cloudflared/tunnel/teamnet_subcommands.go

@@ -0,0 +1,212 @@
+package tunnel
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"text/tabwriter"
+
+	"github.com/pkg/errors"
+
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/updater"
+	"github.com/cloudflare/cloudflared/teamnet"
+
+	"github.com/urfave/cli/v2"
+)
+
+func buildRouteIPSubcommand() *cli.Command {
+	return &cli.Command{
+		Name:      "ip",
+		Usage:     "Configure and query Cloudflare WARP routing to services or private networks available through this tunnel.",
+		UsageText: "cloudflared tunnel [--config FILEPATH] route COMMAND [arguments...]",
+		Description: `cloudflared can provision private routes from any IP space to origins in your corporate network.
+Users enrolled in your Cloudflare for Teams organization can reach those routes through the
+Cloudflare WARP client. You can also build rules to determine who can reach certain routes.`,
+		Subcommands: []*cli.Command{
+			{
+				Name:      "add",
+				Action:    cliutil.ConfiguredAction(addRouteCommand),
+				Usage:     "Add any new network to the routing table reachable via the tunnel",
+				UsageText: "cloudflared tunnel [--config FILEPATH] route ip add [CIDR] [TUNNEL] [COMMENT?]",
+				Description: `Adds any network route space (represented as a CIDR) to your routing table.
+That network space becomes reachable for requests egressing from a user's machine
+as long as it is using Cloudflare WARP client and is enrolled in the same account
+that is running the tunnel chosen here. Further, those requests will be proxied to
+the specified tunnel, and reach an IP in the given CIDR, as long as that IP is
+reachable from the tunnel.`,
+			},
+			{
+				Name:        "show",
+				Aliases:     []string{"list"},
+				Action:      cliutil.ConfiguredAction(showRoutesCommand),
+				Usage:       "Show the routing table",
+				UsageText:   "cloudflared tunnel [--config FILEPATH] route ip show [flags]",
+				Description: `Shows your organization private routing table. You can use flags to filter the results.`,
+				Flags:       showRoutesFlags(),
+			},
+			{
+				Name:      "delete",
+				Action:    cliutil.ConfiguredAction(deleteRouteCommand),
+				Usage:     "Delete a row from your organization's private routing table",
+				UsageText: "cloudflared tunnel [--config FILEPATH] route ip delete [CIDR]",
+				Description: `Deletes the row for a given CIDR from your routing table. That portion
+of your network will no longer be reachable by the WARP clients.`,
+			},
+			{
+				Name:      "get",
+				Action:    cliutil.ConfiguredAction(getRouteByIPCommand),
+				Usage:     "Check which row of the routing table matches a given IP.",
+				UsageText: "cloudflared tunnel [--config FILEPATH] route ip get [IP]",
+				Description: `Checks which row of the routing table will be used to proxy a given IP.
+				This helps check and validate your config.`,
+			},
+		},
+	}
+}
+
+func showRoutesFlags() []cli.Flag {
+	flags := make([]cli.Flag, 0)
+	flags = append(flags, teamnet.FilterFlags...)
+	flags = append(flags, outputFormatFlag)
+	return flags
+}
+
+func showRoutesCommand(c *cli.Context) error {
+	sc, err := newSubcommandContext(c)
+	if err != nil {
+		return err
+	}
+
+	filter, err := teamnet.NewFromCLI(c)
+	if err != nil {
+		return errors.Wrap(err, "invalid config for routing filters")
+	}
+
+	warningChecker := updater.StartWarningCheck(c)
+	defer warningChecker.LogWarningIfAny(sc.log)
+
+	routes, err := sc.listRoutes(filter)
+	if err != nil {
+		return err
+	}
+
+	if outputFormat := c.String(outputFormatFlag.Name); outputFormat != "" {
+		return renderOutput(outputFormat, routes)
+	}
+
+	if len(routes) > 0 {
+		formatAndPrintRouteList(routes)
+	} else {
+		fmt.Println("You have no routes, use 'cloudflared tunnel route ip add' to add a route")
+	}
+
+	return nil
+}
+
+func addRouteCommand(c *cli.Context) error {
+	sc, err := newSubcommandContext(c)
+	if err != nil {
+		return err
+	}
+	if c.NArg() < 2 {
+		return errors.New("You must supply at least 2 arguments, first the network you wish to route (in CIDR form e.g. 1.2.3.4/32) and then the tunnel ID to proxy with")
+	}
+	args := c.Args()
+	_, network, err := net.ParseCIDR(args.Get(0))
+	if err != nil {
+		return errors.Wrap(err, "Invalid network CIDR")
+	}
+	if network == nil {
+		return errors.New("Invalid network CIDR")
+	}
+	tunnelRef := args.Get(1)
+	tunnelID, err := sc.findID(tunnelRef)
+	if err != nil {
+		return errors.Wrap(err, "Invalid tunnel")
+	}
+	comment := ""
+	if c.NArg() >= 3 {
+		comment = args.Get(2)
+	}
+	_, err = sc.addRoute(teamnet.NewRoute{
+		Comment:  comment,
+		Network:  *network,
+		TunnelID: tunnelID,
+	})
+	if err != nil {
+		return errors.Wrap(err, "API error")
+	}
+	fmt.Printf("Successfully added route for %s over tunnel %s\n", network, tunnelID)
+	return nil
+}
+
+func deleteRouteCommand(c *cli.Context) error {
+	sc, err := newSubcommandContext(c)
+	if err != nil {
+		return err
+	}
+	if c.NArg() != 1 {
+		return errors.New("You must supply exactly one argument, the network whose route you want to delete (in CIDR form e.g. 1.2.3.4/32)")
+	}
+	_, network, err := net.ParseCIDR(c.Args().First())
+	if err != nil {
+		return errors.Wrap(err, "Invalid network CIDR")
+	}
+	if network == nil {
+		return errors.New("Invalid network CIDR")
+	}
+	if err := sc.deleteRoute(*network); err != nil {
+		return errors.Wrap(err, "API error")
+	}
+	fmt.Printf("Successfully deleted route for %s\n", network)
+	return nil
+}
+
+func getRouteByIPCommand(c *cli.Context) error {
+	sc, err := newSubcommandContext(c)
+	if err != nil {
+		return err
+	}
+	if c.NArg() != 1 {
+		return errors.New("You must supply exactly one argument, an IP whose route will be queried (e.g. 1.2.3.4 or 2001:0db8:::7334)")
+	}
+
+	ipInput := c.Args().First()
+	ip := net.ParseIP(ipInput)
+	if ip == nil {
+		return fmt.Errorf("Invalid IP %s", ipInput)
+	}
+	route, err := sc.getRouteByIP(ip)
+	if err != nil {
+		return errors.Wrap(err, "API error")
+	}
+	if route.IsZero() {
+		fmt.Printf("No route matches the IP %s\n", ip)
+	} else {
+		formatAndPrintRouteList([]*teamnet.DetailedRoute{&route})
+	}
+	return nil
+}
+
+func formatAndPrintRouteList(routes []*teamnet.DetailedRoute) {
+	const (
+		minWidth = 0
+		tabWidth = 8
+		padding  = 1
+		padChar  = ' '
+		flags    = 0
+	)
+
+	writer := tabwriter.NewWriter(os.Stdout, minWidth, tabWidth, padding, padChar, flags)
+	defer writer.Flush()
+
+	// Print column headers with tabbed columns
+	_, _ = fmt.Fprintln(writer, "NETWORK\tCOMMENT\tTUNNEL ID\tTUNNEL NAME\tCREATED\tDELETED\t")
+
+	// Loop through routes, create formatted string for each, and print using tabwriter
+	for _, route := range routes {
+		formattedStr := route.TableString()
+		_, _ = fmt.Fprintln(writer, formattedStr)
+	}
+}

cmd/cloudflared/ui/launch_ui.go

@@ -3,42 +3,26 @@ package ui
 import (
 	"context"
 	"fmt"
-	"time"
+	"strings"
 
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/cloudflare/cloudflared/connection"
+	"github.com/cloudflare/cloudflared/ingress"
 
 	"github.com/gdamore/tcell"
 	"github.com/rivo/tview"
+	"github.com/rs/zerolog"
 )
 
 type connState struct {
 	location string
-	state    status
-}
-
-type status int
-
-const (
-	Disconnected status = iota
-	Connected
-	Reconnecting
-	SetUrl
-	RegisteringTunnel
-)
-
-type TunnelEvent struct {
-	Index     uint8
-	EventType status
-	Location  string
-	Url       string
 }
 
 type uiModel struct {
-	version     string
-	edgeURL     string
-	metricsURL  string
-	proxyURL    string
-	connections []connState
+	version       string
+	edgeURL       string
+	metricsURL    string
+	localServices []string
+	connections   []connState
 }
 
 type palette struct {
@@ -47,29 +31,34 @@ type palette struct {
 	defaultText  string
 	disconnected string
 	reconnecting string
+	unregistered string
 }
 
-func NewUIModel(version, hostname, metricsURL, proxyURL string, haConnections int) *uiModel {
+func NewUIModel(version, hostname, metricsURL string, ing *ingress.Ingress, haConnections int) *uiModel {
+	localServices := make([]string, len(ing.Rules))
+	for i, rule := range ing.Rules {
+		localServices[i] = rule.Service.String()
+	}
 	return &uiModel{
-		version:     version,
-		edgeURL:     hostname,
-		metricsURL:  metricsURL,
-		proxyURL:    proxyURL,
-		connections: make([]connState, haConnections),
+		version:       version,
+		edgeURL:       hostname,
+		metricsURL:    metricsURL,
+		localServices: localServices,
+		connections:   make([]connState, haConnections),
 	}
 }
 
-func (data *uiModel) LaunchUI(
+func (data *uiModel) Launch(
 	ctx context.Context,
-	log logger.Service,
-	logLevels []logger.Level,
-	tunnelEventChan <-chan TunnelEvent,
-) {
+	log, transportLog *zerolog.Logger,
+) connection.EventSink {
 	// Configure the logger to stream logs into the textview
 
 	// Add TextView as a group to write output to
 	logTextView := NewDynamicColorTextView()
-	log.Add(logTextView, logger.NewUIFormatter(time.RFC3339), logLevels...)
+	// TODO: Format log for UI
+	//log.Add(logTextView, logger.NewUIFormatter(time.RFC3339), logLevels...)
+	//transportLog.Add(logTextView, logger.NewUIFormatter(time.RFC3339), logLevels...)
 
 	// Construct the UI
 	palette := palette{
@@ -78,6 +67,7 @@ func (data *uiModel) LaunchUI(
 		defaultText:  "white",
 		disconnected: "red",
 		reconnecting: "orange",
+		unregistered: "orange",
 	}
 
 	app := tview.NewApplication()
@@ -107,7 +97,8 @@ func (data *uiModel) LaunchUI(
 	tunnelHostText := tview.NewTextView().SetText(data.edgeURL)
 
 	grid.AddItem(tunnelHostText, 0, 1, 1, 1, 0, 0, false)
-	grid.AddItem(NewDynamicColorTextView().SetText(fmt.Sprintf("[%s]\u2022[%s] Proxying to [%s::b]%s", palette.connected, palette.defaultText, palette.url, data.proxyURL)), 1, 1, 1, 1, 0, 0, false)
+	status := fmt.Sprintf("[%s]\u2022[%s] Proxying to [%s::b]%s", palette.connected, palette.defaultText, palette.url, strings.Join(data.localServices, ", "))
+	grid.AddItem(NewDynamicColorTextView().SetText(status), 1, 1, 1, 1, 0, 0, false)
 
 	grid.AddItem(connTable, 2, 1, 1, 1, 0, 0, false)
 
@@ -123,35 +114,33 @@ func (data *uiModel) LaunchUI(
 	grid.AddItem(logFrame, 4, 0, 5, 2, 0, 0, false)
 
 	go func() {
-		for {
-			select {
-			case <-ctx.Done():
-				app.Stop()
-				return
-			case event := <-tunnelEventChan:
-				switch event.EventType {
-				case Connected:
-					data.setConnTableCell(event, connTable, palette)
-				case Disconnected, Reconnecting:
-					data.changeConnStatus(event, connTable, log, palette)
-				case SetUrl:
-					tunnelHostText.SetText(event.Url)
-					data.edgeURL = event.Url
-				case RegisteringTunnel:
-					if data.edgeURL == "" {
-						tunnelHostText.SetText("Registering tunnel...")
-					}
-				}
-			}
-			app.Draw()
-		}
+		<-ctx.Done()
+		app.Stop()
+		return
 	}()
 
 	go func() {
 		if err := app.SetRoot(frame, true).Run(); err != nil {
-			log.Errorf("Error launching UI: %s", err)
+			log.Error().Msgf("Error launching UI: %s", err)
 		}
 	}()
+
+	return connection.EventSinkFunc(func(event connection.Event) {
+		switch event.EventType {
+		case connection.Connected:
+			data.setConnTableCell(event, connTable, palette)
+		case connection.Disconnected, connection.Reconnecting, connection.Unregistering:
+			data.changeConnStatus(event, connTable, log, palette)
+		case connection.SetURL:
+			tunnelHostText.SetText(event.URL)
+			data.edgeURL = event.URL
+		case connection.RegisteringTunnel:
+			if data.edgeURL == "" {
+				tunnelHostText.SetText(fmt.Sprintf("Registering tunnel connection %d...", event.Index))
+			}
+		}
+		app.Draw()
+	})
 }
 
 func NewDynamicColorTextView() *tview.TextView {
@@ -167,22 +156,19 @@ func handleNewText(app *tview.Application, logTextView *tview.TextView) func() {
 	}
 }
 
-func (data *uiModel) changeConnStatus(event TunnelEvent, table *tview.Table, logger logger.Service, palette palette) {
+func (data *uiModel) changeConnStatus(event connection.Event, table *tview.Table, log *zerolog.Logger, palette palette) {
 	index := int(event.Index)
 	// Get connection location and state
 	connState := data.getConnState(index)
 	// Check if connection is already displayed in UI
 	if connState == nil {
-		logger.Info("Connection is not in the UI table")
+		log.Info().Msg("Connection is not in the UI table")
 		return
 	}
 
 	locationState := event.Location
 
-	if event.EventType == Disconnected {
-		connState.state = Disconnected
-	} else if event.EventType == Reconnecting {
-		connState.state = Reconnecting
+	if event.EventType == connection.Reconnecting {
 		locationState = "Reconnecting..."
 	}
 
@@ -203,12 +189,11 @@ func (data *uiModel) getConnState(connID int) *connState {
 	return nil
 }
 
-func (data *uiModel) setConnTableCell(event TunnelEvent, table *tview.Table, palette palette) {
+func (data *uiModel) setConnTableCell(event connection.Event, table *tview.Table, palette palette) {
 	index := int(event.Index)
 	connectionNum := index + 1
 
 	// Update slice to keep track of connection location and state in UI table
-	data.connections[index].state = Connected
 	data.connections[index].location = event.Location
 
 	// Update text in table cell to show disconnected state
@@ -217,19 +202,21 @@ func (data *uiModel) setConnTableCell(event TunnelEvent, table *tview.Table, pal
 	table.SetCell(index, 0, cell)
 }
 
-func newCellText(palette palette, connectionNum int, location string, connectedStatus status) string {
+func newCellText(palette palette, connectionNum int, location string, connectedStatus connection.Status) string {
 	// HA connection indicator formatted as: "• #<CONNECTION_INDEX>: <COLO>",
 	//  where the left middle dot's color depends on the status of the connection
 	const connFmtString = "[%s]\u2022[%s] #%d: %s"
 
 	var dotColor string
 	switch connectedStatus {
-	case Connected:
+	case connection.Connected:
 		dotColor = palette.connected
-	case Disconnected:
+	case connection.Disconnected:
 		dotColor = palette.disconnected
-	case Reconnecting:
+	case connection.Reconnecting:
 		dotColor = palette.reconnecting
+	case connection.Unregistering:
+		dotColor = palette.unregistered
 	}
 
 	return fmt.Sprintf(connFmtString, dotColor, palette.defaultText, connectionNum, location)

cmd/cloudflared/updater/check.go

@@ -0,0 +1,49 @@
+package updater
+
+import (
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v2"
+)
+
+type VersionWarningChecker struct {
+	warningChan chan string
+}
+
+func StartWarningCheck(c *cli.Context) VersionWarningChecker {
+	checker := VersionWarningChecker{
+		warningChan: make(chan string),
+	}
+
+	go func() {
+		options := updateOptions{
+			updateDisabled:  true,
+			isBeta:          c.Bool("beta"),
+			isStaging:       c.Bool("staging"),
+			isForced:        false,
+			intendedVersion: "",
+		}
+		checkResult, err := CheckForUpdate(options)
+		if err == nil {
+			checker.warningChan <- checkResult.UserMessage()
+		}
+		close(checker.warningChan)
+	}()
+
+	return checker
+}
+
+func (checker VersionWarningChecker) getWarning() string {
+	select {
+	case message := <-checker.warningChan:
+		return message
+	default:
+		// No feedback on time, we don't wait for it, since this is best-effort.
+		return ""
+	}
+}
+
+func (checker VersionWarningChecker) LogWarningIfAny(log *zerolog.Logger) {
+	if warning := checker.getWarning(); warning != "" {
+		log.Warn().Msg(warning)
+	}
+}

cmd/cloudflared/updater/service.go

@@ -0,0 +1,30 @@
+package updater
+
+// CheckResult is the behaviour resulting from checking in with the Update Service
+type CheckResult interface {
+	Apply() error
+	Version() string
+	UserMessage() string
+}
+
+// Service is the functions to get check for new updates
+type Service interface {
+	Check() (CheckResult, error)
+}
+
+const (
+	// OSKeyName is the url parameter key to send to the checkin API for the operating system of the local cloudflared (e.g. windows, darwin, linux)
+	OSKeyName = "os"
+
+	// ArchitectureKeyName is the url parameter key to send to the checkin API for the architecture of the local cloudflared (e.g. amd64, x86)
+	ArchitectureKeyName = "arch"
+
+	// BetaKeyName is the url parameter key to send to the checkin API to signal if the update should be a beta version or not
+	BetaKeyName = "beta"
+
+	// VersionKeyName is the url parameter key to send to the checkin API to specific what version to upgrade or downgrade to
+	VersionKeyName = "version"
+
+	// ClientVersionName is the url parameter key to send the version that this cloudflared is currently running with
+	ClientVersionName = "clientVersion"
+)

cmd/cloudflared/updater/update.go

@@ -8,33 +8,29 @@ import (
 	"runtime"
 	"time"
 
+	"github.com/facebookgo/grace/gracenet"
+	"github.com/rs/zerolog"
 	"github.com/urfave/cli/v2"
 	"golang.org/x/crypto/ssh/terminal"
 
-	"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
+	"github.com/cloudflare/cloudflared/config"
 	"github.com/cloudflare/cloudflared/logger"
-	"github.com/equinox-io/equinox"
-	"github.com/facebookgo/grace/gracenet"
-	"github.com/pkg/errors"
 )
 
 const (
 	DefaultCheckUpdateFreq        = time.Hour * 24
-	appID                         = "app_idCzgxYerVD"
 	noUpdateInShellMessage        = "cloudflared will not automatically update when run from the shell. To enable auto-updates, run cloudflared as a service: https://developers.cloudflare.com/argo-tunnel/reference/service/"
 	noUpdateOnWindowsMessage      = "cloudflared will not automatically update on Windows systems."
 	noUpdateManagedPackageMessage = "cloudflared will not automatically update if installed by a package manager."
 	isManagedInstallFile          = ".installedFromPackageManager"
+	UpdateURL                     = "https://update.argotunnel.com"
+	StagingUpdateURL              = "https://staging-update.argotunnel.com"
+
+	LogFieldVersion = "version"
 )
 
 var (
-	publicKey = []byte(`
------BEGIN ECDSA PUBLIC KEY-----
-MHYwEAYHKoZIzj0CAQYFK4EEACIDYgAE4OWZocTVZ8Do/L6ScLdkV+9A0IYMHoOf
-dsCmJ/QZ6aw0w9qkkwEpne1Lmo6+0pGexZzFZOH6w5amShn+RXt7qkSid9iWlzGq
-EKx0BZogHSor9Wy5VztdFaAaVbsJiCbO
------END ECDSA PUBLIC KEY-----
-`)
+	version string
 )
 
 // BinaryUpdated implements ExitCoder interface, the app will exit with status code 11
@@ -64,56 +60,96 @@ func (e *statusErr) ExitCode() int {
 	return 10
 }
 
+type updateOptions struct {
+	updateDisabled  bool
+	isBeta          bool
+	isStaging       bool
+	isForced        bool
+	intendedVersion string
+}
+
 type UpdateOutcome struct {
-	Updated bool
-	Version string
-	Error   error
+	Updated     bool
+	Version     string
+	UserMessage string
+	Error       error
 }
 
 func (uo *UpdateOutcome) noUpdate() bool {
 	return uo.Error == nil && uo.Updated == false
 }
 
-func checkForUpdateAndApply() UpdateOutcome {
-	var opts equinox.Options
-	if err := opts.SetPublicKeyPEM(publicKey); err != nil {
-		return UpdateOutcome{Error: err}
-	}
-
-	resp, err := equinox.Check(appID, opts)
-	switch {
-	case err == equinox.NotAvailableErr:
-		return UpdateOutcome{}
-	case err != nil:
-		return UpdateOutcome{Error: err}
-	}
-
-	err = resp.Apply()
-	if err != nil {
-		return UpdateOutcome{Error: err}
-	}
-
-	return UpdateOutcome{Updated: true, Version: resp.ReleaseVersion}
+func Init(v string) {
+	version = v
 }
 
-func Update(_ *cli.Context) error {
-	logger, err := logger.New()
+func CheckForUpdate(options updateOptions) (CheckResult, error) {
+	cfdPath, err := os.Executable()
 	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
+		return nil, err
 	}
 
+	url := UpdateURL
+	if options.isStaging {
+		url = StagingUpdateURL
+	}
+
+	s := NewWorkersService(version, url, cfdPath, Options{IsBeta: options.isBeta,
+		IsForced: options.isForced, RequestedVersion: options.intendedVersion})
+
+	return s.Check()
+}
+
+func applyUpdate(options updateOptions, update CheckResult) UpdateOutcome {
+	if update.Version() == "" || options.updateDisabled {
+		return UpdateOutcome{UserMessage: update.UserMessage()}
+	}
+
+	err := update.Apply()
+	if err != nil {
+		return UpdateOutcome{Error: err}
+	}
+
+	return UpdateOutcome{Updated: true, Version: update.Version(), UserMessage: update.UserMessage()}
+}
+
+// Update is the handler for the update command from the command line
+func Update(c *cli.Context) error {
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
+
 	if wasInstalledFromPackageManager() {
-		logger.Error("cloudflared was installed by a package manager. Please update using the same method.")
+		log.Error().Msg("cloudflared was installed by a package manager. Please update using the same method.")
 		return nil
 	}
 
-	updateOutcome := loggedUpdate(logger)
+	isBeta := c.Bool("beta")
+	if isBeta {
+		log.Info().Msg("cloudflared is set to update to the latest beta version")
+	}
+
+	isStaging := c.Bool("staging")
+	if isStaging {
+		log.Info().Msg("cloudflared is set to update from staging")
+	}
+
+	isForced := c.Bool("force")
+	if isForced {
+		log.Info().Msg("cloudflared is set to upgrade to the latest publish version regardless of the current version")
+	}
+
+	updateOutcome := loggedUpdate(log, updateOptions{
+		updateDisabled:  false,
+		isBeta:          isBeta,
+		isStaging:       isStaging,
+		isForced:        isForced,
+		intendedVersion: c.String("version"),
+	})
 	if updateOutcome.Error != nil {
 		return &statusErr{updateOutcome.Error}
 	}
 
 	if updateOutcome.noUpdate() {
-		logger.Infof("cloudflared is up to date (%s)", updateOutcome.Version)
+		log.Info().Str(LogFieldVersion, updateOutcome.Version).Msg("cloudflared is up to date")
 		return nil
 	}
 
@@ -121,13 +157,19 @@ func Update(_ *cli.Context) error {
 }
 
 // Checks for an update and applies it if one is available
-func loggedUpdate(logger logger.Service) UpdateOutcome {
-	updateOutcome := checkForUpdateAndApply()
+func loggedUpdate(log *zerolog.Logger, options updateOptions) UpdateOutcome {
+	checkResult, err := CheckForUpdate(options)
+	if err != nil {
+		log.Err(err).Msg("update check failed")
+		return UpdateOutcome{Error: err}
+	}
+
+	updateOutcome := applyUpdate(options, checkResult)
 	if updateOutcome.Updated {
-		logger.Infof("cloudflared has been updated to version %s", updateOutcome.Version)
+		log.Info().Str(LogFieldVersion, updateOutcome.Version).Msg("cloudflared has been updated")
 	}
 	if updateOutcome.Error != nil {
-		logger.Errorf("update check failed: %s", updateOutcome.Error)
+		log.Err(updateOutcome.Error).Msg("update failed to apply")
 	}
 
 	return updateOutcome
@@ -138,7 +180,7 @@ type AutoUpdater struct {
 	configurable     *configurable
 	listeners        *gracenet.Net
 	updateConfigChan chan *configurable
-	logger           logger.Service
+	log              *zerolog.Logger
 }
 
 // AutoUpdaterConfigurable is the attributes of AutoUpdater that can be reconfigured during runtime
@@ -147,45 +189,53 @@ type configurable struct {
 	freq    time.Duration
 }
 
-func NewAutoUpdater(freq time.Duration, listeners *gracenet.Net, logger logger.Service) *AutoUpdater {
-	updaterConfigurable := &configurable{
-		enabled: true,
-		freq:    freq,
-	}
-	if freq == 0 {
-		updaterConfigurable.enabled = false
-		updaterConfigurable.freq = DefaultCheckUpdateFreq
-	}
+func NewAutoUpdater(updateDisabled bool, freq time.Duration, listeners *gracenet.Net, log *zerolog.Logger) *AutoUpdater {
 	return &AutoUpdater{
-		configurable:     updaterConfigurable,
+		configurable:     createUpdateConfig(updateDisabled, freq, log),
 		listeners:        listeners,
 		updateConfigChan: make(chan *configurable),
-		logger:           logger,
+		log:              log,
+	}
+}
+
+func createUpdateConfig(updateDisabled bool, freq time.Duration, log *zerolog.Logger) *configurable {
+	if isAutoupdateEnabled(log, updateDisabled, freq) {
+		log.Info().Dur("autoupdateFreq", freq).Msg("Autoupdate frequency is set")
+		return &configurable{
+			enabled: true,
+			freq:    freq,
+		}
+	} else {
+		return &configurable{
+			enabled: false,
+			freq:    DefaultCheckUpdateFreq,
+		}
 	}
 }
 
 func (a *AutoUpdater) Run(ctx context.Context) error {
 	ticker := time.NewTicker(a.configurable.freq)
 	for {
-		if a.configurable.enabled {
-			updateOutcome := loggedUpdate(a.logger)
-			if updateOutcome.Updated {
-				os.Args = append(os.Args, "--is-autoupdated=true")
-				if IsSysV() {
-					// SysV doesn't have a mechanism to keep service alive, we have to restart the process
-					a.logger.Info("Restarting service managed by SysV...")
-					pid, err := a.listeners.StartProcess()
-					if err != nil {
-						a.logger.Errorf("Unable to restart server automatically: %s", err)
-						return &statusErr{err: err}
-					}
-					// stop old process after autoupdate. Otherwise we create a new process
-					// after each update
-					a.logger.Infof("PID of the new process is %d", pid)
+		updateOutcome := loggedUpdate(a.log, updateOptions{updateDisabled: !a.configurable.enabled})
+		if updateOutcome.Updated {
+			Init(updateOutcome.Version)
+			if IsSysV() {
+				// SysV doesn't have a mechanism to keep service alive, we have to restart the process
+				a.log.Info().Msg("Restarting service managed by SysV...")
+				pid, err := a.listeners.StartProcess()
+				if err != nil {
+					a.log.Err(err).Msg("Unable to restart server automatically")
+					return &statusErr{err: err}
 				}
-				return &statusSuccess{newVersion: updateOutcome.Version}
+				// stop old process after autoupdate. Otherwise we create a new process
+				// after each update
+				a.log.Info().Msgf("PID of the new process is %d", pid)
 			}
+			return &statusSuccess{newVersion: updateOutcome.Version}
+		} else if updateOutcome.UserMessage != "" {
+			a.log.Warn().Msg(updateOutcome.UserMessage)
 		}
+
 		select {
 		case <-ctx.Done():
 			return ctx.Err()
@@ -200,39 +250,30 @@ func (a *AutoUpdater) Run(ctx context.Context) error {
 }
 
 // Update is the method to pass new AutoUpdaterConfigurable to a running AutoUpdater. It is safe to be called concurrently
-func (a *AutoUpdater) Update(newFreq time.Duration) {
-	newConfigurable := &configurable{
-		enabled: true,
-		freq:    newFreq,
-	}
-	// A ero duration means autoupdate is disabled
-	if newFreq == 0 {
-		newConfigurable.enabled = false
-		newConfigurable.freq = DefaultCheckUpdateFreq
-	}
-	a.updateConfigChan <- newConfigurable
+func (a *AutoUpdater) Update(updateDisabled bool, newFreq time.Duration) {
+	a.updateConfigChan <- createUpdateConfig(updateDisabled, newFreq, a.log)
 }
 
-func IsAutoupdateEnabled(c *cli.Context, l logger.Service) bool {
-	if !SupportAutoUpdate(l) {
+func isAutoupdateEnabled(log *zerolog.Logger, updateDisabled bool, updateFreq time.Duration) bool {
+	if !supportAutoUpdate(log) {
 		return false
 	}
-	return !c.Bool("no-autoupdate") && c.Duration("autoupdate-freq") != 0
+	return !updateDisabled && updateFreq != 0
 }
 
-func SupportAutoUpdate(logger logger.Service) bool {
+func supportAutoUpdate(log *zerolog.Logger) bool {
 	if runtime.GOOS == "windows" {
-		logger.Info(noUpdateOnWindowsMessage)
+		log.Info().Msg(noUpdateOnWindowsMessage)
 		return false
 	}
 
 	if wasInstalledFromPackageManager() {
-		logger.Info(noUpdateManagedPackageMessage)
+		log.Info().Msg(noUpdateManagedPackageMessage)
 		return false
 	}
 
 	if isRunningFromTerminal() {
-		logger.Info(noUpdateInShellMessage)
+		log.Info().Msg(noUpdateInShellMessage)
 		return false
 	}
 	return true

cmd/cloudflared/updater/update_test.go

@@ -2,17 +2,19 @@ package updater
 
 import (
 	"context"
+	"flag"
 	"testing"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/facebookgo/grace/gracenet"
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/assert"
+	"github.com/urfave/cli/v2"
 )
 
 func TestDisabledAutoUpdater(t *testing.T) {
 	listeners := &gracenet.Net{}
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
-	autoupdater := NewAutoUpdater(0, listeners, logger)
+	log := zerolog.Nop()
+	autoupdater := NewAutoUpdater(false, 0, listeners, &log)
 	ctx, cancel := context.WithCancel(context.Background())
 	errC := make(chan error)
 	go func() {
@@ -26,3 +28,13 @@ func TestDisabledAutoUpdater(t *testing.T) {
 	// Make sure that autoupdater terminates after canceling the context
 	assert.Equal(t, context.Canceled, <-errC)
 }
+
+func TestCheckInWithUpdater(t *testing.T) {
+	flagSet := flag.NewFlagSet(t.Name(), flag.PanicOnError)
+	cliCtx := cli.NewContext(cli.NewApp(), flagSet, nil)
+
+	warningChecker := StartWarningCheck(cliCtx)
+	warning := warningChecker.getWarning()
+	// Assuming this runs either on a release or development version, then the Worker will never have anything to tell us.
+	assert.Empty(t, warning)
+}

cmd/cloudflared/updater/workers_service.go

@@ -0,0 +1,94 @@
+package updater
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"runtime"
+)
+
+// Options are the update options supported by the
+type Options struct {
+	// IsBeta is for beta updates to be installed if available
+	IsBeta bool
+
+	// IsForced is to forcibly download the latest version regardless of the current version
+	IsForced bool
+
+	// RequestedVersion is the specific version to upgrade or downgrade to
+	RequestedVersion string
+}
+
+// VersionResponse is the JSON response from the Workers API endpoint
+type VersionResponse struct {
+	URL          string `json:"url"`
+	Version      string `json:"version"`
+	Checksum     string `json:"checksum"`
+	IsCompressed bool   `json:"compressed"`
+	UserMessage  string `json:"userMessage"`
+	ShouldUpdate bool   `json:"shouldUpdate"`
+	Error        string `json:"error"`
+}
+
+// WorkersService implements Service.
+// It contains everything needed to check in with the WorkersAPI and download and apply the updates
+type WorkersService struct {
+	currentVersion string
+	url            string
+	targetPath     string
+	opts           Options
+}
+
+// NewWorkersService creates a new updater Service object.
+func NewWorkersService(currentVersion, url, targetPath string, opts Options) Service {
+	return &WorkersService{
+		currentVersion: currentVersion,
+		url:            url,
+		targetPath:     targetPath,
+		opts:           opts,
+	}
+}
+
+// Check does a check in with the Workers API to get a new version update
+func (s *WorkersService) Check() (CheckResult, error) {
+	client := &http.Client{
+		Timeout: clientTimeout,
+	}
+
+	req, err := http.NewRequest(http.MethodGet, s.url, nil)
+	q := req.URL.Query()
+	q.Add(OSKeyName, runtime.GOOS)
+	q.Add(ArchitectureKeyName, runtime.GOARCH)
+	q.Add(ClientVersionName, s.currentVersion)
+
+	if s.opts.IsBeta {
+		q.Add(BetaKeyName, "true")
+	}
+
+	if s.opts.RequestedVersion != "" {
+		q.Add(VersionKeyName, s.opts.RequestedVersion)
+	}
+
+	req.URL.RawQuery = q.Encode()
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var v VersionResponse
+	if err := json.NewDecoder(resp.Body).Decode(&v); err != nil {
+		return nil, err
+	}
+
+	if v.Error != "" {
+		return nil, errors.New(v.Error)
+	}
+
+	versionToUpdate := ""
+	if v.ShouldUpdate {
+		versionToUpdate = v.Version
+	}
+
+	return NewWorkersVersion(v.URL, versionToUpdate, v.Checksum, s.targetPath, v.UserMessage, v.IsCompressed), nil
+}

cmd/cloudflared/updater/workers_service_test.go

@@ -0,0 +1,351 @@
+package updater
+
+import (
+	"archive/tar"
+	"bytes"
+	"compress/gzip"
+	"crypto/sha256"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"runtime"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func respondWithJSON(w http.ResponseWriter, v interface{}, status int) {
+	data, _ := json.Marshal(v)
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	w.Write(data)
+}
+
+func respondWithData(w http.ResponseWriter, b []byte, status int) {
+	w.Header().Set("Content-Type", "application/octet-stream")
+	w.WriteHeader(status)
+	w.Write(b)
+}
+
+const mostRecentVersion = "2021.2.5"
+const mostRecentBetaVersion = "2021.3.0"
+const knownBuggyVersion = "2020.12.0"
+const expectedUserMsg = "This message is expected when running a known buggy version"
+
+func updateHandler(w http.ResponseWriter, r *http.Request) {
+	version := mostRecentVersion
+	host := fmt.Sprintf("http://%s", r.Host)
+	url := host + "/download"
+
+	query := r.URL.Query()
+
+	if query.Get(BetaKeyName) == "true" {
+		version = mostRecentBetaVersion
+		url = host + "/beta"
+	}
+
+	requestedVersion := query.Get(VersionKeyName)
+	if requestedVersion != "" {
+		version = requestedVersion
+		url = fmt.Sprintf("%s?version=%s", url, requestedVersion)
+	}
+
+	if query.Get(ArchitectureKeyName) != runtime.GOARCH || query.Get(OSKeyName) != runtime.GOOS {
+		respondWithJSON(w, VersionResponse{Error: "unsupported os and architecture"}, http.StatusBadRequest)
+		return
+	}
+
+	h := sha256.New()
+	fmt.Fprint(h, version)
+	checksum := fmt.Sprintf("%x", h.Sum(nil))
+
+	var userMessage = ""
+	if query.Get(ClientVersionName) == knownBuggyVersion {
+		userMessage = expectedUserMsg
+	}
+	shouldUpdate := requestedVersion != "" || IsNewerVersion(query.Get(ClientVersionName), version)
+
+	v := VersionResponse{
+		URL: url, Version: version, Checksum: checksum, UserMessage: userMessage, ShouldUpdate: shouldUpdate,
+	}
+	respondWithJSON(w, v, http.StatusOK)
+}
+
+func gzipUpdateHandler(w http.ResponseWriter, r *http.Request) {
+	log.Println("got a request!")
+	version := "2020.09.02"
+	h := sha256.New()
+	fmt.Fprint(h, version)
+	checksum := fmt.Sprintf("%x", h.Sum(nil))
+
+	url := fmt.Sprintf("http://%s/gzip-download.tgz", r.Host)
+	v := VersionResponse{URL: url, Version: version, Checksum: checksum, ShouldUpdate: true}
+	respondWithJSON(w, v, http.StatusOK)
+}
+
+func compressedDownloadHandler(w http.ResponseWriter, r *http.Request) {
+	version := "2020.09.02"
+	buf := new(bytes.Buffer)
+
+	gw := gzip.NewWriter(buf)
+	tw := tar.NewWriter(gw)
+
+	header := &tar.Header{
+		Size: int64(len(version)),
+		Name: "download",
+	}
+	tw.WriteHeader(header)
+	tw.Write([]byte(version))
+
+	tw.Close()
+	gw.Close()
+
+	respondWithData(w, buf.Bytes(), http.StatusOK)
+}
+
+func downloadHandler(w http.ResponseWriter, r *http.Request) {
+	version := mostRecentVersion
+	requestedVersion := r.URL.Query().Get(VersionKeyName)
+	if requestedVersion != "" {
+		version = requestedVersion
+	}
+	respondWithData(w, []byte(version), http.StatusOK)
+}
+
+func betaHandler(w http.ResponseWriter, r *http.Request) {
+	respondWithData(w, []byte(mostRecentBetaVersion), http.StatusOK)
+}
+
+func failureHandler(w http.ResponseWriter, r *http.Request) {
+	respondWithJSON(w, VersionResponse{Error: "unsupported os and architecture"}, http.StatusBadRequest)
+}
+
+func IsNewerVersion(current string, check string) bool {
+	if current == "" || check == "" {
+		return false
+	}
+	if strings.Contains(strings.ToLower(current), "dev") {
+		return false // dev builds shouldn't update
+	}
+
+	cMajor, cMinor, cPatch, err := SemanticParts(current)
+	if err != nil {
+		return false
+	}
+
+	nMajor, nMinor, nPatch, err := SemanticParts(check)
+	if err != nil {
+		return false
+	}
+
+	if nMajor > cMajor {
+		return true
+	}
+
+	if nMajor == cMajor && nMinor > cMinor {
+		return true
+	}
+
+	if nMajor == cMajor && nMinor == cMinor && nPatch > cPatch {
+		return true
+	}
+	return false
+}
+
+func SemanticParts(version string) (major int, minor int, patch int, err error) {
+	major = 0
+	minor = 0
+	patch = 0
+	parts := strings.Split(version, ".")
+	if len(parts) != 3 {
+		err = errors.New("invalid version")
+		return
+	}
+	major, err = strconv.Atoi(parts[0])
+	if err != nil {
+		return
+	}
+
+	minor, err = strconv.Atoi(parts[1])
+	if err != nil {
+		return
+	}
+
+	patch, err = strconv.Atoi(parts[2])
+	if err != nil {
+		return
+	}
+	return
+}
+
+func createServer() *httptest.Server {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/updater", updateHandler)
+	mux.HandleFunc("/download", downloadHandler)
+	mux.HandleFunc("/beta", betaHandler)
+	mux.HandleFunc("/fail", failureHandler)
+	mux.HandleFunc("/compressed", gzipUpdateHandler)
+	mux.HandleFunc("/gzip-download.tgz", compressedDownloadHandler)
+	return httptest.NewServer(mux)
+}
+
+func createTestFile(t *testing.T, path string) {
+	f, err := os.Create(path)
+	require.NoError(t, err)
+	fmt.Fprint(f, "2020.08.04")
+	f.Close()
+}
+
+func TestUpdateService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+	log.Println("server url: ", ts.URL)
+
+	s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.Equal(t, v.Version(), mostRecentVersion)
+
+	require.NoError(t, v.Apply())
+	dat, err := ioutil.ReadFile(testFilePath)
+	require.NoError(t, err)
+
+	require.Equal(t, string(dat), mostRecentVersion)
+}
+
+func TestBetaUpdateService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+
+	s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{IsBeta: true})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.Equal(t, v.Version(), mostRecentBetaVersion)
+
+	require.NoError(t, v.Apply())
+	dat, err := ioutil.ReadFile(testFilePath)
+	require.NoError(t, err)
+
+	require.Equal(t, string(dat), mostRecentBetaVersion)
+}
+
+func TestFailUpdateService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+
+	s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/fail", ts.URL), testFilePath, Options{})
+	v, err := s.Check()
+	require.Error(t, err)
+	require.Nil(t, v)
+}
+
+func TestNoUpdateService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+
+	s := NewWorkersService(mostRecentVersion, fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.NotNil(t, v)
+	require.Empty(t, v.Version())
+}
+
+func TestForcedUpdateService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+
+	s := NewWorkersService("2020.8.5", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{IsForced: true})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.Equal(t, v.Version(), mostRecentVersion)
+
+	require.NoError(t, v.Apply())
+	dat, err := ioutil.ReadFile(testFilePath)
+	require.NoError(t, err)
+
+	require.Equal(t, string(dat), mostRecentVersion)
+}
+
+func TestUpdateSpecificVersionService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+	reqVersion := "2020.9.1"
+
+	s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{RequestedVersion: reqVersion})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.Equal(t, reqVersion, v.Version())
+
+	require.NoError(t, v.Apply())
+	dat, err := ioutil.ReadFile(testFilePath)
+	require.NoError(t, err)
+
+	require.Equal(t, reqVersion, string(dat))
+}
+
+func TestCompressedUpdateService(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+
+	s := NewWorkersService("2020.8.2", fmt.Sprintf("%s/compressed", ts.URL), testFilePath, Options{})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.Equal(t, "2020.09.02", v.Version())
+
+	require.NoError(t, v.Apply())
+	dat, err := ioutil.ReadFile(testFilePath)
+	require.NoError(t, err)
+
+	require.Equal(t, "2020.09.02", string(dat))
+}
+
+func TestUpdateWhenRunningKnownBuggyVersion(t *testing.T) {
+	ts := createServer()
+	defer ts.Close()
+
+	testFilePath := "tmpfile"
+	createTestFile(t, testFilePath)
+	defer os.Remove(testFilePath)
+
+	s := NewWorkersService(knownBuggyVersion, fmt.Sprintf("%s/updater", ts.URL), testFilePath, Options{})
+	v, err := s.Check()
+	require.NoError(t, err)
+	require.Equal(t, v.Version(), mostRecentVersion)
+	require.Equal(t, v.UserMessage(), expectedUserMsg)
+}

cmd/cloudflared/updater/workers_update.go

@@ -0,0 +1,246 @@
+package updater
+
+import (
+	"archive/tar"
+	"compress/gzip"
+	"crypto/sha256"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"text/template"
+	"time"
+)
+
+const (
+	clientTimeout = time.Second * 60
+	// stop the service
+	// rename cloudflared.exe to cloudflared.exe.old
+	// rename cloudflared.exe.new to cloudflared.exe
+	// delete cloudflared.exe.old
+	// start the service
+	// delete the batch file
+	windowsUpdateCommandTemplate = `@echo off
+sc stop cloudflared >nul 2>&1
+rename "{{.TargetPath}}" {{.OldName}}
+rename "{{.NewPath}}" {{.BinaryName}}
+del "{{.OldPath}}"
+sc start cloudflared >nul 2>&1
+del {{.BatchName}}`
+	batchFileName = "cfd_update.bat"
+)
+
+// Prepare some data to insert into the template.
+type batchData struct {
+	TargetPath string
+	OldName    string
+	NewPath    string
+	OldPath    string
+	BinaryName string
+	BatchName  string
+}
+
+// WorkersVersion implements the Version interface.
+// It contains everything needed to preform a version upgrade
+type WorkersVersion struct {
+	downloadURL  string
+	checksum     string
+	version      string
+	targetPath   string
+	isCompressed bool
+	userMessage  string
+}
+
+// NewWorkersVersion creates a new Version object. This is normally created by a WorkersService JSON checkin response
+// url is where to download the file
+// version is the version of this update
+// checksum is the expected checksum of the downloaded file
+// target path is where the file should be replace. Normally this the running cloudflared's path
+// userMessage is a possible message to convey back to the user after having checked in with the Updater Service
+// isCompressed tells whether the asset to update cloudflared is compressed or not
+func NewWorkersVersion(url, version, checksum, targetPath, userMessage string, isCompressed bool) CheckResult {
+	return &WorkersVersion{
+		downloadURL:  url,
+		version:      version,
+		checksum:     checksum,
+		targetPath:   targetPath,
+		isCompressed: isCompressed,
+		userMessage:  userMessage,
+	}
+}
+
+// Apply does the actual verification and update logic.
+// This includes signature and checksum validation,
+// replacing the binary, etc
+func (v *WorkersVersion) Apply() error {
+	newFilePath := fmt.Sprintf("%s.new", v.targetPath)
+	os.Remove(newFilePath) //remove any failed updates before download
+
+	// download the file
+	if err := download(v.downloadURL, newFilePath, v.isCompressed); err != nil {
+		return err
+	}
+
+	// check that the file is what is expected
+	if err := isValidChecksum(v.checksum, newFilePath); err != nil {
+		return err
+	}
+
+	oldFilePath := fmt.Sprintf("%s.old", v.targetPath)
+	// Windows requires more effort to self update, especially when it is running as a service:
+	// you have to stop the service (if running as one) in order to move/rename the binary
+	// but now the binary isn't running though, so an external process
+	// has to move the old binary out and the new one in then start the service
+	// the easiest way to do this is with a batch file (or with a DLL, but that gets ugly for a cross compiled binary like cloudflared)
+	// a batch file isn't ideal, but it is the simplest path forward for the constraints Windows creates
+	if runtime.GOOS == "windows" {
+		if err := writeBatchFile(v.targetPath, newFilePath, oldFilePath); err != nil {
+			return err
+		}
+		rootDir := filepath.Dir(v.targetPath)
+		batchPath := filepath.Join(rootDir, batchFileName)
+		return runWindowsBatch(batchPath)
+	}
+
+	// now move the current file out, move the new file in and delete the old file
+	if err := os.Rename(v.targetPath, oldFilePath); err != nil {
+		return err
+	}
+
+	if err := os.Rename(newFilePath, v.targetPath); err != nil {
+		//attempt rollback
+		os.Rename(oldFilePath, v.targetPath)
+		return err
+	}
+	os.Remove(oldFilePath)
+
+	return nil
+}
+
+// String returns the version number of this update/release (e.g. 2020.08.05)
+func (v *WorkersVersion) Version() string {
+	return v.version
+}
+
+// String returns a possible message to convey back to user after having checked in with the Updater Service. E.g.
+// it can warn about the need to update the version currently running.
+func (v *WorkersVersion) UserMessage() string {
+	return v.userMessage
+}
+
+// download the file from the link in the json
+func download(url, filepath string, isCompressed bool) error {
+	client := &http.Client{
+		Timeout: clientTimeout,
+	}
+	resp, err := client.Get(url)
+
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	var r io.Reader
+	r = resp.Body
+
+	// compressed macos binary, need to decompress
+	if isCompressed || isCompressedFile(url) {
+		// first the gzip reader
+		gr, err := gzip.NewReader(resp.Body)
+		if err != nil {
+			return err
+		}
+		defer gr.Close()
+
+		// now the tar
+		tr := tar.NewReader(gr)
+
+		// advance the reader pass the header, which will be the single binary file
+		tr.Next()
+
+		r = tr
+	}
+
+	out, err := os.OpenFile(filepath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0755)
+	if err != nil {
+		return err
+	}
+	defer out.Close()
+
+	_, err = io.Copy(out, r)
+	return err
+}
+
+// isCompressedFile is a really simple file extension check to see if this is a macos tar and gzipped
+func isCompressedFile(urlstring string) bool {
+	if strings.HasSuffix(urlstring, ".tgz") {
+		return true
+	}
+
+	u, err := url.Parse(urlstring)
+	if err != nil {
+		return false
+	}
+	return strings.HasSuffix(u.Path, ".tgz")
+}
+
+// checks if the checksum in the json response matches the checksum of the file download
+func isValidChecksum(checksum, filePath string) error {
+	f, err := os.Open(filePath)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	h := sha256.New()
+	if _, err := io.Copy(h, f); err != nil {
+		return err
+	}
+
+	hash := fmt.Sprintf("%x", h.Sum(nil))
+
+	if checksum != hash {
+		return errors.New("checksum validation failed")
+	}
+	return nil
+}
+
+// writeBatchFile writes a batch file out to disk
+// see the dicussion on why it has to be done this way
+func writeBatchFile(targetPath string, newPath string, oldPath string) error {
+	os.Remove(batchFileName) //remove any failed updates before download
+	f, err := os.Create(batchFileName)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	cfdName := filepath.Base(targetPath)
+	oldName := filepath.Base(oldPath)
+
+	data := batchData{
+		TargetPath: targetPath,
+		OldName:    oldName,
+		NewPath:    newPath,
+		OldPath:    oldPath,
+		BinaryName: cfdName,
+		BatchName:  batchFileName,
+	}
+
+	t, err := template.New("batch").Parse(windowsUpdateCommandTemplate)
+	if err != nil {
+		return err
+	}
+	return t.Execute(f, data)
+}
+
+// run each OS command for windows
+func runWindowsBatch(batchFile string) error {
+	cmd := exec.Command("cmd", "/c", batchFile)
+	return cmd.Start()
+}

cmd/cloudflared/windows_service.go

@@ -12,10 +12,12 @@ import (
 	"time"
 	"unsafe"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/pkg/errors"
-	cli "github.com/urfave/cli/v2"
 
+	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
+	"github.com/cloudflare/cloudflared/logger"
+
+	"github.com/urfave/cli/v2"
 	"golang.org/x/sys/windows"
 	"golang.org/x/sys/windows/svc"
 	"golang.org/x/sys/windows/svc/eventlog"
@@ -37,22 +39,24 @@ const (
 	// ERROR_FAILED_SERVICE_CONTROLLER_CONNECT
 	// https://docs.microsoft.com/en-us/windows/desktop/debug/system-error-codes--1000-1299-
 	serviceControllerConnectionFailure = 1063
+
+	LogFieldWindowsServiceName = "windowsServiceName"
 )
 
-func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
+func runApp(app *cli.App, graceShutdownC chan struct{}) {
 	app.Commands = append(app.Commands, &cli.Command{
 		Name:  "service",
 		Usage: "Manages the Argo Tunnel Windows service",
 		Subcommands: []*cli.Command{
-			&cli.Command{
+			{
 				Name:   "install",
 				Usage:  "Install Argo Tunnel as a Windows service",
-				Action: installWindowsService,
+				Action: cliutil.ConfiguredAction(installWindowsService),
 			},
-			&cli.Command{
+			{
 				Name:   "uninstall",
 				Usage:  "Uninstall the Argo Tunnel service",
-				Action: uninstallWindowsService,
+				Action: cliutil.ConfiguredAction(uninstallWindowsService),
 			},
 		},
 	})
@@ -67,15 +71,11 @@ func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
 	//     2. get ERROR_FAILED_SERVICE_CONTROLLER_CONNECT
 	// This involves actually trying to start the service.
 
-	logger, err := logger.New()
-	if err != nil {
-		os.Exit(1)
-		return
-	}
+	log := logger.Create(nil)
 
 	isIntSess, err := svc.IsAnInteractiveSession()
 	if err != nil {
-		logger.Fatalf("failed to determine if we are running in an interactive session: %v", err)
+		log.Fatal().Err(err).Msg("failed to determine if we are running in an interactive session")
 	}
 	if isIntSess {
 		app.Run(os.Args)
@@ -85,7 +85,7 @@ func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
 	// Run executes service name by calling windowsService which is a Handler
 	// interface that implements Execute method.
 	// It will set service status to stop after Execute returns
-	err = svc.Run(windowsServiceName, &windowsService{app: app, shutdownC: shutdownC, graceShutdownC: graceShutdownC})
+	err = svc.Run(windowsServiceName, &windowsService{app: app, graceShutdownC: graceShutdownC})
 	if err != nil {
 		if errno, ok := err.(syscall.Errno); ok && int(errno) == serviceControllerConnectionFailure {
 			// Hack: assume this is a false negative from the IsAnInteractiveSession() check above.
@@ -93,27 +93,22 @@ func runApp(app *cli.App, shutdownC, graceShutdownC chan struct{}) {
 			app.Run(os.Args)
 			return
 		}
-		logger.Fatalf("%s service failed: %v", windowsServiceName, err)
+		log.Fatal().Err(err).Msgf("%s service failed", windowsServiceName)
 	}
 }
 
 type windowsService struct {
 	app            *cli.App
-	shutdownC      chan struct{}
 	graceShutdownC chan struct{}
 }
 
-// called by the package code at the start of the service
+// Execute is called by the service manager when service starts, the state
+// of the service will be set to Stopped when this function returns.
 func (s *windowsService) Execute(serviceArgs []string, r <-chan svc.ChangeRequest, statusChan chan<- svc.Status) (ssec bool, errno uint32) {
-	logger, err := logger.New()
-	if err != nil {
-		os.Exit(1)
-		return
-	}
-
+	log := logger.Create(nil)
 	elog, err := eventlog.Open(windowsServiceName)
 	if err != nil {
-		logger.Errorf("Cannot open event log for %s with error: %s", windowsServiceName, err)
+		log.Err(err).Msgf("Cannot open event log for %s", windowsServiceName)
 		return
 	}
 	defer elog.Close()
@@ -136,13 +131,12 @@ func (s *windowsService) Execute(serviceArgs []string, r <-chan svc.ChangeReques
 	}
 	elog.Info(1, fmt.Sprintf("%s service arguments: %v", windowsServiceName, args))
 
-	const cmdsAccepted = svc.AcceptStop | svc.AcceptShutdown
 	statusChan <- svc.Status{State: svc.StartPending}
 	errC := make(chan error)
 	go func() {
 		errC <- s.app.Run(args)
 	}()
-	statusChan <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
+	statusChan <- svc.Status{State: svc.Running, Accepts: svc.AcceptStop | svc.AcceptShutdown}
 
 	for {
 		select {
@@ -151,17 +145,25 @@ func (s *windowsService) Execute(serviceArgs []string, r <-chan svc.ChangeReques
 			case svc.Interrogate:
 				statusChan <- c.CurrentStatus
 			case svc.Stop, svc.Shutdown:
-				close(s.graceShutdownC)
-				statusChan <- svc.Status{State: svc.Stopped, Accepts: cmdsAccepted}
+				if s.graceShutdownC != nil {
+					// start graceful shutdown
+					elog.Info(1, "cloudflared starting graceful shutdown")
+					close(s.graceShutdownC)
+					s.graceShutdownC = nil
+					statusChan <- svc.Status{State: svc.StopPending}
+					continue
+				}
+				// repeated attempts at graceful shutdown forces immediate stop
+				elog.Info(1, "cloudflared terminating immediately")
 				statusChan <- svc.Status{State: svc.StopPending}
-				return
+				return false, 0
 			default:
 				elog.Error(1, fmt.Sprintf("unexpected control request #%d", c))
 			}
 		case err := <-errC:
-			ssec = true
 			if err != nil {
 				elog.Error(1, fmt.Sprintf("cloudflared terminated with error %v", err))
+				ssec = true
 				errno = 1
 			} else {
 				elog.Info(1, "cloudflared terminated without error")
@@ -173,80 +175,68 @@ func (s *windowsService) Execute(serviceArgs []string, r <-chan svc.ChangeReques
 }
 
 func installWindowsService(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	zeroLogger := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog)
 
-	logger.Infof("Installing Argo Tunnel Windows service")
+	zeroLogger.Info().Msg("Installing Argo Tunnel Windows service")
 	exepath, err := os.Executable()
 	if err != nil {
-		logger.Errorf("Cannot find path name that start the process")
-		return err
+		return errors.Wrap(err, "Cannot find path name that start the process")
 	}
 	m, err := mgr.Connect()
 	if err != nil {
-		logger.Errorf("Cannot establish a connection to the service control manager: %s", err)
-		return err
+		return errors.Wrap(err, "Cannot establish a connection to the service control manager")
 	}
 	defer m.Disconnect()
 	s, err := m.OpenService(windowsServiceName)
+	log := zeroLogger.With().Str(LogFieldWindowsServiceName, windowsServiceName).Logger()
 	if err == nil {
 		s.Close()
-		logger.Errorf("service %s already exists", windowsServiceName)
-		return fmt.Errorf("service %s already exists", windowsServiceName)
+		return fmt.Errorf("Service %s already exists", windowsServiceName)
 	}
 	config := mgr.Config{StartType: mgr.StartAutomatic, DisplayName: windowsServiceDescription}
 	s, err = m.CreateService(windowsServiceName, exepath, config)
 	if err != nil {
-		logger.Errorf("Cannot install service %s", windowsServiceName)
-		return err
+		return errors.Wrap(err, "Cannot install service")
 	}
 	defer s.Close()
-	logger.Infof("Argo Tunnel agent service is installed")
+	log.Info().Msg("Argo Tunnel agent service is installed")
 	err = eventlog.InstallAsEventCreate(windowsServiceName, eventlog.Error|eventlog.Warning|eventlog.Info)
 	if err != nil {
 		s.Delete()
-		logger.Errorf("Cannot install event logger: %s", err)
-		return fmt.Errorf("SetupEventLogSource() failed: %s", err)
+		return errors.Wrap(err, "Cannot install event logger")
 	}
 	err = configRecoveryOption(s.Handle)
 	if err != nil {
-		logger.Errorf("Cannot set service recovery actions: %s", err)
-		logger.Infof("See %s to manually configure service recovery actions", windowsServiceUrl)
+		log.Err(err).Msg("Cannot set service recovery actions")
+		log.Info().Msgf("See %s to manually configure service recovery actions", windowsServiceUrl)
 	}
 	return nil
 }
 
 func uninstallWindowsService(c *cli.Context) error {
-	logger, err := logger.New()
-	if err != nil {
-		return errors.Wrap(err, "error setting up logger")
-	}
+	log := logger.CreateLoggerFromContext(c, logger.EnableTerminalLog).
+		With().
+		Str(LogFieldWindowsServiceName, windowsServiceName).Logger()
 
-	logger.Infof("Uninstalling Argo Tunnel Windows Service")
+	log.Info().Msg("Uninstalling Argo Tunnel Windows Service")
 	m, err := mgr.Connect()
 	if err != nil {
-		logger.Errorf("Cannot establish a connection to the service control manager")
-		return err
+		return errors.Wrap(err, "Cannot establish a connection to the service control manager")
 	}
 	defer m.Disconnect()
 	s, err := m.OpenService(windowsServiceName)
 	if err != nil {
-		logger.Errorf("service %s is not installed", windowsServiceName)
-		return fmt.Errorf("service %s is not installed", windowsServiceName)
+		return fmt.Errorf("Service %s is not installed", windowsServiceName)
 	}
 	defer s.Close()
 	err = s.Delete()
 	if err != nil {
-		logger.Errorf("Cannot delete service %s", windowsServiceName)
-		return err
+		return errors.Wrap(err, "Cannot delete service")
 	}
-	logger.Infof("Argo Tunnel agent service is uninstalled")
+	log.Info().Msg("Argo Tunnel agent service is uninstalled")
 	err = eventlog.Remove(windowsServiceName)
 	if err != nil {
-		logger.Errorf("Cannot remove event logger")
-		return fmt.Errorf("RemoveEventLogSource() failed: %s", err)
+		return errors.Wrap(err, "Cannot remove event logger")
 	}
 	return nil
 }

component-tests/.gitignore

@@ -0,0 +1,2 @@
+__pycache__
+.pytest_cache

component-tests/README.md

@@ -0,0 +1,52 @@
+# Requirements
+1. Python 3.7 or later with packages in the given `requirements.txt`
+   - E.g. with conda:
+   - `conda create -n component-tests python=3.7`  
+   - `conda activate component-tests`
+   - `pip3 install -r requirements.txt`
+
+2. Create a config yaml file, for example:
+```
+cloudflared_binary: "cloudflared"
+tunnel: "3d539f97-cd3a-4d8e-c33b-65e9099c7a8d"
+credentials_file: "/Users/tunnel/.cloudflared/3d539f97-cd3a-4d8e-c33b-65e9099c7a8d.json"
+classic_hostname: "classic-tunnel-component-tests.example.com"
+origincert: "/Users/tunnel/.cloudflared/cert.pem"
+ingress:
+- hostname: named-tunnel-component-tests.example.com
+  service: http_status:200
+- service: http_status:404
+```
+
+3. Route hostname to the tunnel. For the example config above, we can do that via
+```
+   cloudflared tunnel route dns 3d539f97-cd3a-4d8e-c33b-65e9099c7a8d named-tunnel-component-tests.example.com
+```
+
+4. Turn on linter
+If you are using Visual Studio, follow https://code.visualstudio.com/docs/python/linting to turn on linter.
+
+5. Turn on formatter
+If you are using Visual Studio, follow https://code.visualstudio.com/docs/python/editing#_formatting
+to turn on formatter and https://marketplace.visualstudio.com/items?itemName=cbrevik.toggle-format-on-save
+to turn on format on save.
+
+6. If you have cloudflared running as a service on your machine, you can either stop the service or ignore the service tests
+via `--ignore test_service.py`
+
+# How to run
+Specify path to config file via env var `COMPONENT_TESTS_CONFIG`. This is required.
+## All tests
+Run `pytest` inside this(component-tests) folder
+
+## Specific files
+Run `pytest <file 1 name>.py <file 2 name>.py`
+
+## Specific tests
+Run `pytest file.py -k <test 1 name> -k <test 2 name>`
+
+## Live Logging
+Running with `-o log_cli=true` outputs logging to CLI as the tests are. By default the log level is WARN.
+`--log-cli-level` control logging level.
+For example, to log at info level, run `pytest -o log_cli=true --log-cli-level=INFO`.
+See https://docs.pytest.org/en/latest/logging.html#live-logs for more documentation on logging.

component-tests/config.py

@@ -0,0 +1,132 @@
+#!/usr/bin/env python
+import base64
+import copy
+import os
+import yaml
+
+from dataclasses import dataclass, InitVar
+
+from constants import METRICS_PORT
+
+from util import LOGGER
+
+# frozen=True raises exception when assigning to fields. This emulates immutability
+
+
+@dataclass(frozen=True)
+class BaseConfig:
+    cloudflared_binary: str
+    no_autoupdate: bool = True
+    metrics: str = f'localhost:{METRICS_PORT}'
+
+    def merge_config(self, additional):
+        config = copy.copy(additional)
+        config['no-autoupdate'] = self.no_autoupdate
+        config['metrics'] = self.metrics
+        return config
+
+
+@dataclass(frozen=True)
+class NamedTunnelBaseConfig(BaseConfig):
+    # The attributes of the parent class are ordered before attributes in this class,
+    # so we have to use default values here and check if they are set in __post_init__
+    tunnel: str = None
+    credentials_file: str = None
+    ingress: list = None
+
+    def __post_init__(self):
+        if self.tunnel is None:
+            raise TypeError("Field tunnel is not set")
+        if self.credentials_file is None:
+            raise TypeError("Field credentials_file is not set")
+        if self.ingress is None:
+            raise TypeError("Field ingress is not set")
+
+    def merge_config(self, additional):
+        config = super(NamedTunnelBaseConfig, self).merge_config(additional)
+        config['tunnel'] = self.tunnel
+        config['credentials-file'] = self.credentials_file
+        # In some cases we want to override default ingress, such as in config tests
+        if 'ingress' not in config:
+            config['ingress'] = self.ingress
+        return config
+
+
+@dataclass(frozen=True)
+class NamedTunnelConfig(NamedTunnelBaseConfig):
+    full_config: dict = None
+    additional_config: InitVar[dict] = {}
+
+    def __post_init__(self, additional_config):
+        # Cannot call set self.full_config because the class is frozen, instead, we can use __setattr__
+        # https://docs.python.org/3/library/dataclasses.html#frozen-instances
+        object.__setattr__(self, 'full_config',
+                           self.merge_config(additional_config))
+
+    def get_url(self):
+        return "https://" + self.ingress[0]['hostname']
+
+
+@dataclass(frozen=True)
+class ClassicTunnelBaseConfig(BaseConfig):
+    hostname: str = None
+    origincert: str = None
+
+    def __post_init__(self):
+        if self.hostname is None:
+            raise TypeError("Field tunnel is not set")
+        if self.origincert is None:
+            raise TypeError("Field credentials_file is not set")
+
+    def merge_config(self, additional):
+        config = super(ClassicTunnelBaseConfig, self).merge_config(additional)
+        config['hostname'] = self.hostname
+        config['origincert'] = self.origincert
+        return config
+
+
+@dataclass(frozen=True)
+class ClassicTunnelConfig(ClassicTunnelBaseConfig):
+    full_config: dict = None
+    additional_config: InitVar[dict] = {}
+
+    def __post_init__(self, additional_config):
+        # Cannot call set self.full_config because the class is frozen, instead, we can use __setattr__
+        # https://docs.python.org/3/library/dataclasses.html#frozen-instances
+        object.__setattr__(self, 'full_config',
+                           self.merge_config(additional_config))
+
+    def get_url(self):
+        return "https://" + self.hostname
+
+
+def build_config_from_env():
+    config_path = get_env("COMPONENT_TESTS_CONFIG")
+    config_content = base64.b64decode(
+        get_env("COMPONENT_TESTS_CONFIG_CONTENT")).decode('utf-8')
+    config_yaml = yaml.safe_load(config_content)
+
+    credentials_file = get_env("COMPONENT_TESTS_CREDENTIALS_FILE")
+    write_file(credentials_file, config_yaml["credentials_file"])
+
+    origincert = get_env("COMPONENT_TESTS_ORIGINCERT")
+    write_file(origincert, config_yaml["origincert"])
+
+    write_file(config_content, config_path)
+
+
+def write_file(content, path):
+    with open(path, 'w') as outfile:
+        outfile.write(content)
+        outfile.close
+
+
+def get_env(env_name):
+    val = os.getenv(env_name)
+    if val is None:
+        raise Exception(f"{env_name} is not set")
+    return val
+
+
+if __name__ == '__main__':
+    build_config_from_env()

component-tests/conftest.py

@@ -0,0 +1,35 @@
+import os
+import pytest
+import yaml
+
+from time import sleep
+
+from config import NamedTunnelConfig, ClassicTunnelConfig
+from constants import BACKOFF_SECS
+from util import LOGGER
+
+
+@pytest.fixture(scope="session")
+def component_tests_config():
+    config_file = os.getenv("COMPONENT_TESTS_CONFIG")
+    if config_file is None:
+        raise Exception(
+            "Need to provide path to config file in COMPONENT_TESTS_CONFIG")
+    with open(config_file, 'r') as stream:
+        config = yaml.safe_load(stream)
+        LOGGER.info(f"component tests base config {config}")
+
+        def _component_tests_config(additional_config={}, named_tunnel=True):
+            if named_tunnel:
+                return NamedTunnelConfig(additional_config=additional_config,
+                                         cloudflared_binary=config['cloudflared_binary'], tunnel=config['tunnel'], credentials_file=config['credentials_file'],  ingress=config['ingress'])
+            return ClassicTunnelConfig(
+                additional_config=additional_config, cloudflared_binary=config['cloudflared_binary'], hostname=config['classic_hostname'], origincert=config['origincert'])
+
+        return _component_tests_config
+
+
+# This fixture is automatically called before each tests to make sure the previous cloudflared has been shutdown
+@pytest.fixture(autouse=True)
+def wait_previous_cloudflared():
+    sleep(BACKOFF_SECS)

component-tests/constants.py

@@ -0,0 +1,3 @@
+METRICS_PORT = 51000
+MAX_RETRIES = 5
+BACKOFF_SECS = 7

component-tests/requirements.txt

@@ -0,0 +1,5 @@
+flaky==3.7.0
+pytest==6.2.2
+pyyaml==5.4.1
+requests==2.25.1
+retrying==1.3.3

component-tests/test_config.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+from util import start_cloudflared
+
+
+class TestConfig:
+    # tmp_path is a fixture provides a temporary directory unique to the test invocation
+    def test_validate_ingress_rules(self, tmp_path, component_tests_config):
+        extra_config = {
+            'ingress': [
+                {
+                    "hostname": "example.com",
+                    "service": "https://localhost:8000",
+                    "originRequest": {
+                        "originServerName": "test.example.com",
+                        "caPool": "/etc/certs/ca.pem"
+                    },
+                },
+                {
+                    "hostname": "api.example.com",
+                    "path": "login",
+                    "service": "https://localhost:9000",
+                },
+                {
+                    "hostname": "wss.example.com",
+                    "service": "wss://localhost:8000",
+                },
+                {
+                    "hostname": "ssh.example.com",
+                    "service": "ssh://localhost:8000",
+                },
+                {"service": "http_status:404"}
+            ],
+        }
+        config = component_tests_config(extra_config)
+        validate_args = ["ingress", "validate"]
+        _ = start_cloudflared(tmp_path, config, validate_args)
+
+        self.match_rule(tmp_path, config,
+                        "http://example.com/index.html", 1)
+        self.match_rule(tmp_path, config,
+                        "https://example.com/index.html", 1)
+        self.match_rule(tmp_path, config,
+                        "https://api.example.com/login", 2)
+        self.match_rule(tmp_path, config,
+                        "https://wss.example.com", 3)
+        self.match_rule(tmp_path, config,
+                        "https://ssh.example.com", 4)
+        self.match_rule(tmp_path, config,
+                        "https://api.example.com", 5)
+
+    # This is used to check that the command tunnel ingress url <url> matches rule number <rule_num>. Note that rule number uses 1-based indexing
+
+    def match_rule(self, tmp_path, config, url, rule_num):
+        args = ["ingress", "rule", url]
+        match_rule = start_cloudflared(tmp_path, config, args)
+
+        assert f"Matched rule #{rule_num}" .encode() in match_rule.stdout

component-tests/test_logging.py

@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+import json
+import os
+from util import start_cloudflared, wait_tunnel_ready, send_requests, LOGGER
+
+
+class TestLogging:
+    # TODO: Test logging when running as a service https://jira.cfops.it/browse/TUN-4082
+    # Rolling logger rotate log files after 1 MB
+    rotate_after_size = 1000 * 1000
+    default_log_file = "cloudflared.log"
+    expect_message = "Starting tunnel"
+
+    def test_logging_to_terminal(self, tmp_path, component_tests_config):
+        config = component_tests_config()
+        with start_cloudflared(tmp_path, config, new_process=True) as cloudflared:
+            wait_tunnel_ready(tunnel_url=config.get_url())
+            self.assert_log_to_terminal(cloudflared)
+
+    def test_logging_to_file(self, tmp_path, component_tests_config):
+        log_file = tmp_path / self.default_log_file
+        extra_config = {
+            # Convert from pathlib.Path to str
+            "logfile": str(log_file),
+        }
+        config = component_tests_config(extra_config)
+        with start_cloudflared(tmp_path, config, new_process=True, capture_output=False):
+            wait_tunnel_ready(tunnel_url=config.get_url())
+            self.assert_log_in_file(log_file)
+            self.assert_json_log(log_file)
+
+    def test_logging_to_dir(self, tmp_path, component_tests_config):
+        log_dir = tmp_path / "logs"
+        extra_config = {
+            "loglevel": "debug",
+            # Convert from pathlib.Path to str
+            "log-directory": str(log_dir),
+        }
+        config = component_tests_config(extra_config)
+        with start_cloudflared(tmp_path, config, new_process=True, capture_output=False):
+            wait_tunnel_ready(tunnel_url=config.get_url())
+            self.assert_log_to_dir(config, log_dir)
+
+    def assert_log_to_terminal(self, cloudflared):
+        stderr = cloudflared.stderr.read(200)
+        # cloudflared logs the following when it first starts
+        # 2021-03-10T12:30:39Z INF Starting tunnel tunnelID=<tunnel ID>
+        assert self.expect_message.encode(
+        ) in stderr, f"{stderr} doesn't contain {self.expect_message}"
+
+    def assert_log_in_file(self, file, expect_message=""):
+        with open(file, "r") as f:
+            log = f.read(200)
+            # cloudflared logs the following when it first starts
+            # {"level":"info","tunnelID":"<tunnel ID>","time":"2021-03-10T12:21:13Z","message":"Starting tunnel"}
+            assert self.expect_message in log, f"{log} doesn't contain {self.expect_message}"
+
+    def assert_json_log(self, file):
+        with open(file, "r") as f:
+            line = f.readline()
+            json_log = json.loads(line)
+            self.assert_in_json(json_log, "level")
+            self.assert_in_json(json_log, "time")
+            self.assert_in_json(json_log, "message")
+
+    def assert_in_json(self, j, key):
+        assert key in j, f"{key} is not in j"
+
+    def assert_log_to_dir(self, config, log_dir):
+        max_batches = 3
+        batch_requests = 1000
+        for _ in range(max_batches):
+            send_requests(config.get_url(),
+                          batch_requests, require_ok=False)
+            files = os.listdir(log_dir)
+            if len(files) == 2:
+                current_log_file_index = files.index(self.default_log_file)
+                current_file = log_dir / files[current_log_file_index]
+                stats = os.stat(current_file)
+                assert stats.st_size > 0
+                self.assert_json_log(current_file)
+
+                # One file is the current log file, the other is the rotated log file
+                rotated_log_file_index = 0 if current_log_file_index == 1 else 1
+                rotated_file = log_dir / files[rotated_log_file_index]
+                stats = os.stat(rotated_file)
+                assert stats.st_size > self.rotate_after_size
+                self.assert_log_in_file(rotated_file)
+                self.assert_json_log(current_file)
+                return
+
+        raise Exception(
+            f"Log file isn't rotated after sending {max_batches * batch_requests} requests")

component-tests/test_reconnect.py

@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+import copy
+from flaky import flaky
+from retrying import retry
+from time import sleep
+
+from util import start_cloudflared, wait_tunnel_ready, check_tunnel_not_connected, send_requests
+
+
+@flaky(max_runs=3, min_passes=1)
+class TestReconnect():
+    default_ha_conns = 4
+    default_reconnect_secs = 5
+    extra_config = {
+        "stdin-control": True,
+    }
+
+    def test_named_reconnect(self, tmp_path, component_tests_config):
+        config = component_tests_config(self.extra_config)
+        with start_cloudflared(tmp_path, config, new_process=True, allow_input=True) as cloudflared:
+            # Repeat the test multiple times because some issues only occur after multiple reconnects
+            self.assert_reconnect(config, cloudflared, 5)
+
+    def test_classic_reconnect(self, tmp_path, component_tests_config):
+        extra_config = copy.copy(self.extra_config)
+        extra_config["hello-world"] = True
+        config = component_tests_config(
+            additional_config=extra_config, named_tunnel=False)
+        with start_cloudflared(tmp_path, config, cfd_args=[], new_process=True, allow_input=True) as cloudflared:
+            self.assert_reconnect(config, cloudflared, 1)
+
+    def send_reconnect(self, cloudflared, secs):
+        # Although it is recommended to use the Popen.communicate method, we cannot
+        # use it because it blocks on reading stdout and stderr until EOF is reached
+        cloudflared.stdin.write(f"reconnect {secs}s\n".encode())
+        cloudflared.stdin.flush()
+
+    def assert_reconnect(self, config, cloudflared, repeat):
+        wait_tunnel_ready(tunnel_url=config.get_url())
+        for _ in range(repeat):
+            for i in range(self.default_ha_conns):
+                self.send_reconnect(cloudflared, self.default_reconnect_secs)
+                expect_connections = self.default_ha_conns-i-1
+                if expect_connections > 0:
+                    # Don't check if tunnel returns 200 here because there is a race condition between wait_tunnel_ready
+                    # retrying to get 200 response and reconnecting
+                    wait_tunnel_ready(
+                        require_min_connections=expect_connections)
+                else:
+                    check_tunnel_not_connected()
+
+            sleep(self.default_reconnect_secs + 10)
+            wait_tunnel_ready(tunnel_url=config.get_url(),
+                              require_min_connections=self.default_ha_conns)

component-tests/test_service.py

@@ -0,0 +1,77 @@
+#!/usr/bin/env python
+from contextlib import contextmanager
+import os
+from pathlib import Path
+import platform
+import pytest
+import subprocess
+
+from util import start_cloudflared, cloudflared_cmd, wait_tunnel_ready, LOGGER
+
+
+def select_platform(plat):
+    return pytest.mark.skipif(
+        platform.system() != plat, reason=f"Only runs on {plat}")
+
+
+def default_config_dir():
+    return os.path.join(Path.home(), ".cloudflared")
+
+
+def default_config_file():
+    return os.path.join(default_config_dir(), "config.yml")
+
+
+class TestServiceMode():
+    @select_platform("Darwin")
+    @pytest.mark.skipif(os.path.exists(default_config_file()), reason=f"There is already a config file in default path")
+    def test_launchd_service(self, component_tests_config):
+        # On Darwin cloudflared service defaults to run classic tunnel command
+        additional_config = {
+            "hello-world": True,
+        }
+        config = component_tests_config(
+            additional_config=additional_config, named_tunnel=False)
+        with self.run_service(Path(default_config_dir()), config):
+            self.launchctl_cmd("list")
+            self.launchctl_cmd("start")
+            wait_tunnel_ready(tunnel_url=config.get_url())
+            self.launchctl_cmd("stop")
+
+        os.remove(default_config_file())
+        self.launchctl_cmd("list", success=False)
+
+    @select_platform("Linux")
+    @pytest.mark.skipif(os.path.exists("/etc/cloudflared/config.yml"), reason=f"There is already a config file in default path")
+    def test_sysv_service(self, tmp_path, component_tests_config):
+        config = component_tests_config()
+        with self.run_service(tmp_path, config, root=True):
+            self.sysv_cmd("start")
+            self.sysv_cmd("status")
+            wait_tunnel_ready(tunnel_url=config.get_url())
+            self.sysv_cmd("stop")
+        # Service install copies config file to /etc/cloudflared/config.yml
+        subprocess.run(["sudo", "rm", "/etc/cloudflared/config.yml"])
+        self.sysv_cmd("status", success=False)
+
+    @contextmanager
+    def run_service(self, tmp_path, config, root=False):
+        try:
+            service = start_cloudflared(
+                tmp_path, config, cfd_args=["service", "install"], cfd_pre_args=[], capture_output=False, root=root)
+            yield service
+        finally:
+            start_cloudflared(
+                tmp_path, config, cfd_args=["service", "uninstall"], cfd_pre_args=[], capture_output=False, root=root)
+
+    def launchctl_cmd(self, action, success=True):
+        cmd = subprocess.run(
+            ["launchctl", action, "com.cloudflare.cloudflared"], check=success)
+        if not success:
+            assert cmd.returncode != 0, f"Expect {cmd.args} to fail, but it succeed"
+
+    def sysv_cmd(self, action, success=True):
+        cmd = subprocess.run(
+            ["sudo", "service", "cloudflared", action], check=success)
+        if not success:
+            assert cmd.returncode != 0, f"Expect {cmd.args} to fail, but it succeed"

component-tests/test_termination.py

@@ -0,0 +1,103 @@
+#!/usr/bin/env python
+from contextlib import contextmanager
+import requests
+import signal
+import threading
+import time
+
+from util import start_cloudflared, wait_tunnel_ready, check_tunnel_not_connected, LOGGER
+
+
+class TestTermination():
+    grace_period = 5
+    timeout = 10
+    extra_config = {
+        "grace-period": f"{grace_period}s",
+    }
+    signals = [signal.SIGTERM, signal.SIGINT]
+    sse_endpoint = "/sse?freq=1s"
+
+    def test_graceful_shutdown(self, tmp_path, component_tests_config):
+        config = component_tests_config(self.extra_config)
+        for sig in self.signals:
+            with start_cloudflared(
+                    tmp_path, config, new_process=True, capture_output=False) as cloudflared:
+                wait_tunnel_ready(tunnel_url=config.get_url())
+
+                connected = threading.Condition()
+                in_flight_req = threading.Thread(
+                    target=self.stream_request, args=(config, connected,))
+                in_flight_req.start()
+
+                with connected:
+                    connected.wait(self.timeout)
+                # Send signal after the SSE connection is established
+                self.terminate_by_signal(cloudflared, sig)
+                self.wait_eyeball_thread(
+                    in_flight_req, self.grace_period + self.timeout)
+
+    # test cloudflared terminates before grace period expires when all eyeball
+    # connections are drained
+    def test_shutdown_once_no_connection(self, tmp_path, component_tests_config):
+        config = component_tests_config(self.extra_config)
+        for sig in self.signals:
+            with start_cloudflared(
+                    tmp_path, config, new_process=True, capture_output=False) as cloudflared:
+                wait_tunnel_ready(tunnel_url=config.get_url())
+
+                connected = threading.Condition()
+                in_flight_req = threading.Thread(
+                    target=self.stream_request, args=(config, connected, True, ))
+                in_flight_req.start()
+
+                with connected:
+                    connected.wait(self.timeout)
+                with self.within_grace_period():
+                    # Send signal after the SSE connection is established
+                    self.terminate_by_signal(cloudflared, sig)
+                    self.wait_eyeball_thread(in_flight_req, self.grace_period)
+
+    def test_no_connection_shutdown(self, tmp_path, component_tests_config):
+        config = component_tests_config(self.extra_config)
+        for sig in self.signals:
+            with start_cloudflared(
+                    tmp_path, config, new_process=True, capture_output=False) as cloudflared:
+                wait_tunnel_ready(tunnel_url=config.get_url())
+                with self.within_grace_period():
+                    self.terminate_by_signal(cloudflared, sig)
+
+    def terminate_by_signal(self, cloudflared, sig):
+        cloudflared.send_signal(sig)
+        check_tunnel_not_connected()
+        cloudflared.wait()
+
+    def wait_eyeball_thread(self, thread, timeout):
+        thread.join(timeout)
+        assert thread.is_alive() == False, "eyeball thread is still alive"
+
+    # Using this context asserts logic within the context is executed within grace period
+    @contextmanager
+    def within_grace_period(self):
+        try:
+            start = time.time()
+            yield
+        finally:
+            duration = time.time() - start
+            assert duration < self.grace_period
+
+    def stream_request(self, config, connected, early_terminate):
+        expected_terminate_message = "502 Bad Gateway"
+        url = config.get_url() + self.sse_endpoint
+
+        with requests.get(url, timeout=5, stream=True) as resp:
+            with connected:
+                connected.notifyAll()
+            lines = 0
+            for line in resp.iter_lines():
+                if expected_terminate_message.encode() == line:
+                    break
+                lines += 1
+                if early_terminate and lines == 2:
+                    return
+            # /sse returns count followed by 2 new lines
+            assert lines >= (self.grace_period * 2)

component-tests/util.py

@@ -0,0 +1,100 @@
+from contextlib import contextmanager
+import logging
+import requests
+from retrying import retry
+import subprocess
+import yaml
+
+from time import sleep
+
+from constants import METRICS_PORT, MAX_RETRIES, BACKOFF_SECS
+
+LOGGER = logging.getLogger(__name__)
+
+
+def write_config(directory, config):
+    config_path = directory / "config.yml"
+    with open(config_path, 'w') as outfile:
+        yaml.dump(config, outfile)
+    return config_path
+
+
+def start_cloudflared(directory, config, cfd_args=["run"], cfd_pre_args=["tunnel"], new_process=False, allow_input=False, capture_output=True, root=False):
+    config_path = write_config(directory, config.full_config)
+    cmd = cloudflared_cmd(config, config_path, cfd_args, cfd_pre_args, root)
+    if new_process:
+        return run_cloudflared_background(cmd, allow_input, capture_output)
+    # By setting check=True, it will raise an exception if the process exits with non-zero exit code
+    return subprocess.run(cmd, check=True, capture_output=capture_output)
+
+
+def cloudflared_cmd(config, config_path, cfd_args, cfd_pre_args, root):
+    cmd = []
+    if root:
+        cmd += ["sudo"]
+    cmd += [config.cloudflared_binary]
+    cmd += cfd_pre_args
+    cmd += ["--config", config_path]
+    cmd += cfd_args
+    LOGGER.info(f"Run cmd {cmd} with config {config}")
+    return cmd
+
+
+@contextmanager
+def run_cloudflared_background(cmd, allow_input, capture_output):
+    output = subprocess.PIPE if capture_output else subprocess.DEVNULL
+    stdin = subprocess.PIPE if allow_input else None
+    try:
+        cfd = subprocess.Popen(cmd, stdin=stdin, stdout=output, stderr=output)
+        yield cfd
+    finally:
+        cfd.terminate()
+        if capture_output:
+            LOGGER.info(
+                f"cloudflared log: {cfd.stderr.read()}")
+
+
+@retry(stop_max_attempt_number=MAX_RETRIES, wait_fixed=BACKOFF_SECS * 1000)
+def wait_tunnel_ready(tunnel_url=None, require_min_connections=1):
+    metrics_url = f'http://localhost:{METRICS_PORT}/ready'
+
+    with requests.Session() as s:
+        resp = send_request(s, metrics_url, True)
+        assert resp.json()[
+            "readyConnections"] >= require_min_connections, f"Ready endpoint returned {resp.json()} but we expect at least {require_min_connections} connections"
+        if tunnel_url is not None:
+            send_request(s, tunnel_url, True)
+
+
+@retry(stop_max_attempt_number=MAX_RETRIES * BACKOFF_SECS, wait_fixed=1000)
+def check_tunnel_not_connected():
+    url = f'http://localhost:{METRICS_PORT}/ready'
+
+    try:
+        resp = requests.get(url, timeout=1)
+        assert resp.status_code == 503, f"Expect {url} returns 503, got {resp.status_code}"
+    # cloudflared might already terminate
+    except requests.exceptions.ConnectionError as e:
+        LOGGER.warning(f"Failed to connect to {url}, error: {e}")
+
+
+# In some cases we don't need to check response status, such as when sending batch requests to generate logs
+def send_requests(url, count, require_ok=True):
+    errors = 0
+    with requests.Session() as s:
+        for _ in range(count):
+            resp = send_request(s, url, require_ok)
+            if resp is None:
+                errors += 1
+            sleep(0.01)
+    if errors > 0:
+        LOGGER.warning(
+            f"{errors} out of {count} requests to {url} return non-200 status")
+
+
+@retry(stop_max_attempt_number=MAX_RETRIES, wait_fixed=BACKOFF_SECS * 1000)
+def send_request(session, url, require_ok):
+    resp = session.get(url, timeout=BACKOFF_SECS)
+    if require_ok:
+        assert resp.status_code == 200, f"{url} returned {resp}"
+    return resp if resp.status_code == 200 else None

config/configuration.go

@@ -0,0 +1,388 @@
+package config
+
+import (
+	"fmt"
+	"io"
+	"net/url"
+	"os"
+	"path/filepath"
+	"runtime"
+	"time"
+
+	"github.com/mitchellh/go-homedir"
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
+	"github.com/urfave/cli/v2"
+	"gopkg.in/yaml.v2"
+
+	"github.com/cloudflare/cloudflared/validation"
+)
+
+var (
+	// DefaultConfigFiles is the file names from which we attempt to read configuration.
+	DefaultConfigFiles = []string{"config.yml", "config.yaml"}
+
+	// DefaultUnixConfigLocation is the primary location to find a config file
+	DefaultUnixConfigLocation = "/usr/local/etc/cloudflared"
+
+	// DefaultUnixLogLocation is the primary location to find log files
+	DefaultUnixLogLocation = "/var/log/cloudflared"
+
+	// Launchd doesn't set root env variables, so there is default
+	// Windows default config dir was ~/cloudflare-warp in documentation; let's keep it compatible
+	defaultUserConfigDirs = []string{"~/.cloudflared", "~/.cloudflare-warp", "~/cloudflare-warp"}
+	defaultNixConfigDirs  = []string{"/etc/cloudflared", DefaultUnixConfigLocation}
+
+	ErrNoConfigFile = fmt.Errorf("Cannot determine default configuration path. No file %v in %v", DefaultConfigFiles, DefaultConfigSearchDirectories())
+)
+
+const (
+	DefaultCredentialFile = "cert.pem"
+
+	// BastionFlag is to enable bastion, or jump host, operation
+	BastionFlag = "bastion"
+)
+
+// DefaultConfigDirectory returns the default directory of the config file
+func DefaultConfigDirectory() string {
+	if runtime.GOOS == "windows" {
+		path := os.Getenv("CFDPATH")
+		if path == "" {
+			path = filepath.Join(os.Getenv("ProgramFiles(x86)"), "cloudflared")
+			if _, err := os.Stat(path); os.IsNotExist(err) { //doesn't exist, so return an empty failure string
+				return ""
+			}
+		}
+		return path
+	}
+	return DefaultUnixConfigLocation
+}
+
+// DefaultLogDirectory returns the default directory for log files
+func DefaultLogDirectory() string {
+	if runtime.GOOS == "windows" {
+		return DefaultConfigDirectory()
+	}
+	return DefaultUnixLogLocation
+}
+
+// DefaultConfigPath returns the default location of a config file
+func DefaultConfigPath() string {
+	dir := DefaultConfigDirectory()
+	if dir == "" {
+		return DefaultConfigFiles[0]
+	}
+	return filepath.Join(dir, DefaultConfigFiles[0])
+}
+
+// DefaultConfigSearchDirectories returns the default folder locations of the config
+func DefaultConfigSearchDirectories() []string {
+	dirs := make([]string, len(defaultUserConfigDirs))
+	copy(dirs, defaultUserConfigDirs)
+	if runtime.GOOS != "windows" {
+		dirs = append(dirs, defaultNixConfigDirs...)
+	}
+	return dirs
+}
+
+// FileExists checks to see if a file exist at the provided path.
+func FileExists(path string) (bool, error) {
+	f, err := os.Open(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			// ignore missing files
+			return false, nil
+		}
+		return false, err
+	}
+	_ = f.Close()
+	return true, nil
+}
+
+// FindDefaultConfigPath returns the first path that contains a config file.
+// If none of the combination of DefaultConfigSearchDirectories() and DefaultConfigFiles
+// contains a config file, return empty string.
+func FindDefaultConfigPath() string {
+	for _, configDir := range DefaultConfigSearchDirectories() {
+		for _, configFile := range DefaultConfigFiles {
+			dirPath, err := homedir.Expand(configDir)
+			if err != nil {
+				continue
+			}
+			path := filepath.Join(dirPath, configFile)
+			if ok, _ := FileExists(path); ok {
+				return path
+			}
+		}
+	}
+	return ""
+}
+
+// FindOrCreateConfigPath returns the first path that contains a config file
+// or creates one in the primary default path if it doesn't exist
+func FindOrCreateConfigPath() string {
+	path := FindDefaultConfigPath()
+
+	if path == "" {
+		// create the default directory if it doesn't exist
+		path = DefaultConfigPath()
+		if err := os.MkdirAll(filepath.Dir(path), os.ModePerm); err != nil {
+			return ""
+		}
+
+		// write a new config file out
+		file, err := os.Create(path)
+		if err != nil {
+			return ""
+		}
+		defer file.Close()
+
+		logDir := DefaultLogDirectory()
+		_ = os.MkdirAll(logDir, os.ModePerm) //try and create it. Doesn't matter if it succeed or not, only byproduct will be no logs
+
+		c := Root{
+			LogDirectory: logDir,
+		}
+		if err := yaml.NewEncoder(file).Encode(&c); err != nil {
+			return ""
+		}
+	}
+
+	return path
+}
+
+// ValidateUnixSocket ensures --unix-socket param is used exclusively
+// i.e. it fails if a user specifies both --url and --unix-socket
+func ValidateUnixSocket(c *cli.Context) (string, error) {
+	if c.IsSet("unix-socket") && (c.IsSet("url") || c.NArg() > 0) {
+		return "", errors.New("--unix-socket must be used exclusivly.")
+	}
+	return c.String("unix-socket"), nil
+}
+
+// ValidateUrl will validate url flag correctness. It can be either from --url or argument
+// Notice ValidateUnixSocket, it will enforce --unix-socket is not used with --url or argument
+func ValidateUrl(c *cli.Context, allowURLFromArgs bool) (*url.URL, error) {
+	var url = c.String("url")
+	if allowURLFromArgs && c.NArg() > 0 {
+		if c.IsSet("url") {
+			return nil, errors.New("Specified origin urls using both --url and argument. Decide which one you want, I can only support one.")
+		}
+		url = c.Args().Get(0)
+	}
+	validUrl, err := validation.ValidateUrl(url)
+	return validUrl, err
+}
+
+type UnvalidatedIngressRule struct {
+	Hostname      string
+	Path          string
+	Service       string
+	OriginRequest OriginRequestConfig `yaml:"originRequest"`
+}
+
+// OriginRequestConfig is a set of optional fields that users may set to
+// customize how cloudflared sends requests to origin services. It is used to set
+// up general config that apply to all rules, and also, specific per-rule
+// config.
+// Note: To specify a time.Duration in go-yaml, use e.g. "3s" or "24h".
+type OriginRequestConfig struct {
+	// HTTP proxy timeout for establishing a new connection
+	ConnectTimeout *time.Duration `yaml:"connectTimeout"`
+	// HTTP proxy timeout for completing a TLS handshake
+	TLSTimeout *time.Duration `yaml:"tlsTimeout"`
+	// HTTP proxy TCP keepalive duration
+	TCPKeepAlive *time.Duration `yaml:"tcpKeepAlive"`
+	// HTTP proxy should disable "happy eyeballs" for IPv4/v6 fallback
+	NoHappyEyeballs *bool `yaml:"noHappyEyeballs"`
+	// HTTP proxy maximum keepalive connection pool size
+	KeepAliveConnections *int `yaml:"keepAliveConnections"`
+	// HTTP proxy timeout for closing an idle connection
+	KeepAliveTimeout *time.Duration `yaml:"keepAliveTimeout"`
+	// Sets the HTTP Host header for the local webserver.
+	HTTPHostHeader *string `yaml:"httpHostHeader"`
+	// Hostname on the origin server certificate.
+	OriginServerName *string `yaml:"originServerName"`
+	// Path to the CA for the certificate of your origin.
+	// This option should be used only if your certificate is not signed by Cloudflare.
+	CAPool *string `yaml:"caPool"`
+	// Disables TLS verification of the certificate presented by your origin.
+	// Will allow any certificate from the origin to be accepted.
+	// Note: The connection from your machine to Cloudflare's Edge is still encrypted.
+	NoTLSVerify *bool `yaml:"noTLSVerify"`
+	// Disables chunked transfer encoding.
+	// Useful if you are running a WSGI server.
+	DisableChunkedEncoding *bool `yaml:"disableChunkedEncoding"`
+	// Runs as jump host
+	BastionMode *bool `yaml:"bastionMode"`
+	// Listen address for the proxy.
+	ProxyAddress *string `yaml:"proxyAddress"`
+	// Listen port for the proxy.
+	ProxyPort *uint `yaml:"proxyPort"`
+	// Valid options are 'socks' or empty.
+	ProxyType *string `yaml:"proxyType"`
+	// IP rules for the proxy service
+	IPRules []IngressIPRule `yaml:"ipRules"`
+}
+
+type IngressIPRule struct {
+	Prefix *string `yaml:"prefix"`
+	Ports  []int   `yaml:"ports"`
+	Allow  bool    `yaml:"allow"`
+}
+
+type Configuration struct {
+	TunnelID      string `yaml:"tunnel"`
+	Ingress       []UnvalidatedIngressRule
+	WarpRouting   WarpRoutingConfig   `yaml:"warp-routing"`
+	OriginRequest OriginRequestConfig `yaml:"originRequest"`
+	sourceFile    string
+}
+
+type WarpRoutingConfig struct {
+	Enabled bool `yaml:"enabled"`
+}
+
+type configFileSettings struct {
+	Configuration `yaml:",inline"`
+	// older settings will be aggregated into the generic map, should be read via cli.Context
+	Settings map[string]interface{} `yaml:",inline"`
+}
+
+func (c *Configuration) Source() string {
+	return c.sourceFile
+}
+
+func (c *configFileSettings) Int(name string) (int, error) {
+	if raw, ok := c.Settings[name]; ok {
+		if v, ok := raw.(int); ok {
+			return v, nil
+		}
+		return 0, fmt.Errorf("expected int found %T for %s", raw, name)
+	}
+	return 0, nil
+}
+
+func (c *configFileSettings) Duration(name string) (time.Duration, error) {
+	if raw, ok := c.Settings[name]; ok {
+		switch v := raw.(type) {
+		case time.Duration:
+			return v, nil
+		case string:
+			return time.ParseDuration(v)
+		}
+		return 0, fmt.Errorf("expected duration found %T for %s", raw, name)
+	}
+	return 0, nil
+}
+
+func (c *configFileSettings) Float64(name string) (float64, error) {
+	if raw, ok := c.Settings[name]; ok {
+		if v, ok := raw.(float64); ok {
+			return v, nil
+		}
+		return 0, fmt.Errorf("expected float found %T for %s", raw, name)
+	}
+	return 0, nil
+}
+
+func (c *configFileSettings) String(name string) (string, error) {
+	if raw, ok := c.Settings[name]; ok {
+		if v, ok := raw.(string); ok {
+			return v, nil
+		}
+		return "", fmt.Errorf("expected string found %T for %s", raw, name)
+	}
+	return "", nil
+}
+
+func (c *configFileSettings) StringSlice(name string) ([]string, error) {
+	if raw, ok := c.Settings[name]; ok {
+		if slice, ok := raw.([]interface{}); ok {
+			strSlice := make([]string, len(slice))
+			for i, v := range slice {
+				str, ok := v.(string)
+				if !ok {
+					return nil, fmt.Errorf("expected string, found %T for %v", i, v)
+				}
+				strSlice[i] = str
+			}
+			return strSlice, nil
+		}
+		return nil, fmt.Errorf("expected string slice found %T for %s", raw, name)
+	}
+	return nil, nil
+}
+
+func (c *configFileSettings) IntSlice(name string) ([]int, error) {
+	if raw, ok := c.Settings[name]; ok {
+		if slice, ok := raw.([]interface{}); ok {
+			intSlice := make([]int, len(slice))
+			for i, v := range slice {
+				str, ok := v.(int)
+				if !ok {
+					return nil, fmt.Errorf("expected int, found %T for %v ", v, v)
+				}
+				intSlice[i] = str
+			}
+			return intSlice, nil
+		}
+		if v, ok := raw.([]int); ok {
+			return v, nil
+		}
+		return nil, fmt.Errorf("expected int slice found %T for %s", raw, name)
+	}
+	return nil, nil
+}
+
+func (c *configFileSettings) Generic(name string) (cli.Generic, error) {
+	return nil, errors.New("option type Generic not supported")
+}
+
+func (c *configFileSettings) Bool(name string) (bool, error) {
+	if raw, ok := c.Settings[name]; ok {
+		if v, ok := raw.(bool); ok {
+			return v, nil
+		}
+		return false, fmt.Errorf("expected boolean found %T for %s", raw, name)
+	}
+	return false, nil
+}
+
+var configuration configFileSettings
+
+func GetConfiguration() *Configuration {
+	return &configuration.Configuration
+}
+
+// ReadConfigFile returns InputSourceContext initialized from the configuration file.
+// On repeat calls returns with the same file, returns without reading the file again; however,
+// if value of "config" flag changes, will read the new config file
+func ReadConfigFile(c *cli.Context, log *zerolog.Logger) (*configFileSettings, error) {
+	configFile := c.String("config")
+	if configuration.Source() == configFile || configFile == "" {
+		if configuration.Source() == "" {
+			return nil, ErrNoConfigFile
+		}
+		return &configuration, nil
+	}
+
+	log.Debug().Msgf("Loading configuration from %s", configFile)
+	file, err := os.Open(configFile)
+	if err != nil {
+		if os.IsNotExist(err) {
+			err = ErrNoConfigFile
+		}
+		return nil, err
+	}
+	defer file.Close()
+	if err := yaml.NewDecoder(file).Decode(&configuration); err != nil {
+		if err == io.EOF {
+			log.Error().Msgf("Configuration file %s was empty", configFile)
+			return &configuration, nil
+		}
+		return nil, errors.Wrap(err, "error parsing YAML in config file at "+configFile)
+	}
+	configuration.sourceFile = configFile
+	return &configuration, nil
+}

config/configuration_test.go

@@ -0,0 +1,83 @@
+package config
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v2"
+)
+
+func TestConfigFileSettings(t *testing.T) {
+	var (
+		firstIngress = UnvalidatedIngressRule{
+			Hostname: "tunnel1.example.com",
+			Path:     "/id",
+			Service:  "https://localhost:8000",
+		}
+		secondIngress = UnvalidatedIngressRule{
+			Hostname: "*",
+			Path:     "",
+			Service:  "https://localhost:8001",
+		}
+		warpRouting = WarpRoutingConfig{
+			Enabled: true,
+		}
+	)
+	rawYAML := `
+tunnel: config-file-test
+ingress:
+ - hostname: tunnel1.example.com
+   path: /id
+   service: https://localhost:8000
+ - hostname: "*"
+   service: https://localhost:8001
+warp-routing: 
+  enabled: true
+retries: 5
+grace-period: 30s
+percentage: 3.14
+hostname: example.com
+tag:
+ - test
+ - central-1
+counters:
+ - 123
+ - 456
+`
+	var config configFileSettings
+	err := yaml.Unmarshal([]byte(rawYAML), &config)
+	assert.NoError(t, err)
+
+	assert.Equal(t, "config-file-test", config.TunnelID)
+	assert.Equal(t, firstIngress, config.Ingress[0])
+	assert.Equal(t, secondIngress, config.Ingress[1])
+	assert.Equal(t, warpRouting, config.WarpRouting)
+
+	retries, err := config.Int("retries")
+	assert.NoError(t, err)
+	assert.Equal(t, 5, retries)
+
+	gracePeriod, err := config.Duration("grace-period")
+	assert.NoError(t, err)
+	assert.Equal(t, time.Second*30, gracePeriod)
+
+	percentage, err := config.Float64("percentage")
+	assert.NoError(t, err)
+	assert.Equal(t, 3.14, percentage)
+
+	hostname, err := config.String("hostname")
+	assert.NoError(t, err)
+	assert.Equal(t, "example.com", hostname)
+
+	tags, err := config.StringSlice("tag")
+	assert.NoError(t, err)
+	assert.Equal(t, "test", tags[0])
+	assert.Equal(t, "central-1", tags[1])
+
+	counters, err := config.IntSlice("counters")
+	assert.NoError(t, err)
+	assert.Equal(t, 123, counters[0])
+	assert.Equal(t, 456, counters[1])
+
+}

config/manager.go

@@ -1,11 +1,13 @@
 package config
 
 import (
-	"errors"
+	"io"
 	"os"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/watcher"
+
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
 	"gopkg.in/yaml.v2"
 )
 
@@ -26,16 +28,16 @@ type FileManager struct {
 	watcher    watcher.Notifier
 	notifier   Notifier
 	configPath string
-	logger     logger.Service
-	ReadConfig func(string) (Root, error)
+	log        *zerolog.Logger
+	ReadConfig func(string, *zerolog.Logger) (Root, error)
 }
 
 // NewFileManager creates a config manager
-func NewFileManager(watcher watcher.Notifier, configPath string, logger logger.Service) (*FileManager, error) {
+func NewFileManager(watcher watcher.Notifier, configPath string, log *zerolog.Logger) (*FileManager, error) {
 	m := &FileManager{
 		watcher:    watcher,
 		configPath: configPath,
-		logger:     logger,
+		log:        log,
 		ReadConfig: readConfigFromPath,
 	}
 	err := watcher.Add(configPath)
@@ -59,7 +61,7 @@ func (m *FileManager) Start(notifier Notifier) error {
 
 // GetConfig reads the yaml file from the disk
 func (m *FileManager) GetConfig() (Root, error) {
-	return m.ReadConfig(m.configPath)
+	return m.ReadConfig(m.configPath, m.log)
 }
 
 // Shutdown stops the watcher
@@ -67,7 +69,7 @@ func (m *FileManager) Shutdown() {
 	m.watcher.Shutdown()
 }
 
-func readConfigFromPath(configPath string) (Root, error) {
+func readConfigFromPath(configPath string, log *zerolog.Logger) (Root, error) {
 	if configPath == "" {
 		return Root{}, errors.New("unable to find config file")
 	}
@@ -80,7 +82,11 @@ func readConfigFromPath(configPath string) (Root, error) {
 
 	var config Root
 	if err := yaml.NewDecoder(file).Decode(&config); err != nil {
-		return Root{}, err
+		if err == io.EOF {
+			log.Error().Msgf("Configuration file %s was empty", configPath)
+			return Root{}, nil
+		}
+		return Root{}, errors.Wrap(err, "error parsing YAML in config file at "+configPath)
 	}
 
 	return config, nil
@@ -93,14 +99,14 @@ func readConfigFromPath(configPath string) (Root, error) {
 func (m *FileManager) WatcherItemDidChange(filepath string) {
 	config, err := m.GetConfig()
 	if err != nil {
-		m.logger.Errorf("Failed to read new config: %s", err)
+		m.log.Err(err).Msg("Failed to read new config")
 		return
 	}
-	m.logger.Info("Config file has been updated")
+	m.log.Info().Msg("Config file has been updated")
 	m.notifier.ConfigDidUpdate(config)
 }
 
 // WatcherDidError notifies of errors with the file watcher
 func (m *FileManager) WatcherDidError(err error) {
-	m.logger.Errorf("Config watcher encountered an error: %s", err)
+	m.log.Err(err).Msg("Config watcher encountered an error")
 }

config/manager_test.go

@@ -4,8 +4,9 @@ import (
 	"os"
 	"testing"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/watcher"
+
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -45,8 +46,8 @@ func TestConfigChanged(t *testing.T) {
 	f, err := os.Create(filePath)
 	assert.NoError(t, err)
 	defer func() {
-		f.Close()
-		os.Remove(filePath)
+		_ = f.Close()
+		_ = os.Remove(filePath)
 	}()
 	c := &Root{
 		Forwarders: []Forwarder{
@@ -56,15 +57,15 @@ func TestConfigChanged(t *testing.T) {
 			},
 		},
 	}
-	configRead := func(configPath string) (Root, error) {
+	configRead := func(configPath string, log *zerolog.Logger) (Root, error) {
 		return *c, nil
 	}
 	wait := make(chan struct{})
 	w := &mockFileWatcher{path: filePath, ready: wait}
 
-	logger := logger.NewOutputWriter(logger.NewMockWriteManager())
+	log := zerolog.Nop()
 
-	service, err := NewFileManager(w, filePath, logger)
+	service, err := NewFileManager(w, filePath, &log)
 	service.ReadConfig = configRead
 	assert.NoError(t, err)
 

config/model.go

@@ -5,6 +5,8 @@ import (
 	"fmt"
 	"io"
 	"strings"
+
+	"github.com/cloudflare/cloudflared/tunneldns"
 )
 
 // Forwarder represents a client side listener to forward traffic to the edge
@@ -25,11 +27,12 @@ type Tunnel struct {
 
 // DNSResolver represents a client side DNS resolver
 type DNSResolver struct {
-	Enabled    bool     `json:"enabled"`
-	Address    string   `json:"address,omitempty"`
-	Port       uint16   `json:"port,omitempty"`
-	Upstreams  []string `json:"upstreams,omitempty"`
-	Bootstraps []string `json:"bootstraps,omitempty"`
+	Enabled                bool     `json:"enabled"`
+	Address                string   `json:"address,omitempty"`
+	Port                   uint16   `json:"port,omitempty"`
+	Upstreams              []string `json:"upstreams,omitempty"`
+	Bootstraps             []string `json:"bootstraps,omitempty"`
+	MaxUpstreamConnections int      `json:"max_upstream_connections,omitempty"`
 }
 
 // Root is the base options to configure the service
@@ -59,6 +62,7 @@ func (r *DNSResolver) Hash() string {
 	io.WriteString(h, strings.Join(r.Bootstraps, ","))
 	io.WriteString(h, strings.Join(r.Upstreams, ","))
 	io.WriteString(h, fmt.Sprintf("%d", r.Port))
+	io.WriteString(h, fmt.Sprintf("%d", r.MaxUpstreamConnections))
 	io.WriteString(h, fmt.Sprintf("%v", r.Enabled))
 	return fmt.Sprintf("%x", h.Sum(nil))
 }
@@ -99,3 +103,11 @@ func (r *DNSResolver) BootstrapsOrDefault() []string {
 	}
 	return []string{"https://162.159.36.1/dns-query", "https://162.159.46.1/dns-query", "https://[2606:4700:4700::1111]/dns-query", "https://[2606:4700:4700::1001]/dns-query"}
 }
+
+// MaxUpstreamConnectionsOrDefault return the max upstream connections or returns the default if negative
+func (r *DNSResolver) MaxUpstreamConnectionsOrDefault() int {
+	if r.MaxUpstreamConnections >= 0 {
+		return r.MaxUpstreamConnections
+	}
+	return tunneldns.MaxUpstreamConnsDefault
+}

connection/connection.go

@@ -0,0 +1,113 @@
+package connection
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+	"github.com/google/uuid"
+)
+
+const LogFieldConnIndex = "connIndex"
+
+type Config struct {
+	OriginProxy     OriginProxy
+	GracePeriod     time.Duration
+	ReplaceExisting bool
+}
+
+type NamedTunnelConfig struct {
+	Credentials Credentials
+	Client      pogs.ClientInfo
+}
+
+// Credentials are stored in the credentials file and contain all info needed to run a tunnel.
+type Credentials struct {
+	AccountTag   string
+	TunnelSecret []byte
+	TunnelID     uuid.UUID
+	TunnelName   string
+}
+
+func (c *Credentials) Auth() pogs.TunnelAuth {
+	return pogs.TunnelAuth{
+		AccountTag:   c.AccountTag,
+		TunnelSecret: c.TunnelSecret,
+	}
+}
+
+type ClassicTunnelConfig struct {
+	Hostname   string
+	OriginCert []byte
+	// feature-flag to use new edge reconnect tokens
+	UseReconnectToken bool
+}
+
+func (c *ClassicTunnelConfig) IsTrialZone() bool {
+	return c.Hostname == ""
+}
+
+// Type indicates the connection type of the  connection.
+type Type int
+
+const (
+	TypeWebsocket Type = iota
+	TypeTCP
+	TypeControlStream
+	TypeHTTP
+)
+
+// ShouldFlush returns whether this kind of connection should actively flush data
+func (t Type) shouldFlush() bool {
+	switch t {
+	case TypeWebsocket, TypeTCP, TypeControlStream:
+		return true
+	default:
+		return false
+	}
+}
+
+func (t Type) String() string {
+	switch t {
+	case TypeWebsocket:
+		return "websocket"
+	case TypeTCP:
+		return "tcp"
+	case TypeControlStream:
+		return "control stream"
+	case TypeHTTP:
+		return "http"
+	default:
+		return fmt.Sprintf("Unknown Type %d", t)
+	}
+}
+
+type OriginProxy interface {
+	// If Proxy returns an error, the caller is responsible for writing the error status to ResponseWriter
+	Proxy(w ResponseWriter, req *http.Request, sourceConnectionType Type) error
+}
+
+type ResponseWriter interface {
+	WriteRespHeaders(status int, header http.Header) error
+	io.Writer
+}
+
+type ConnectedFuse interface {
+	Connected()
+	IsConnected() bool
+}
+
+func IsServerSentEvent(headers http.Header) bool {
+	if contentType := headers.Get("content-type"); contentType != "" {
+		return strings.HasPrefix(strings.ToLower(contentType), "text/event-stream")
+	}
+	return false
+}
+
+func uint8ToString(input uint8) string {
+	return strconv.FormatUint(uint64(input), 10)
+}

connection/connection_test.go

@@ -0,0 +1,145 @@
+package connection
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"testing"
+	"time"
+
+	"github.com/gobwas/ws/wsutil"
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	largeFileSize = 2 * 1024 * 1024
+)
+
+var (
+	testConfig = &Config{
+		OriginProxy: &mockOriginProxy{},
+		GracePeriod: time.Millisecond * 100,
+	}
+	log           = zerolog.Nop()
+	testOriginURL = &url.URL{
+		Scheme: "https",
+		Host:   "connectiontest.argotunnel.com",
+	}
+	testLargeResp = make([]byte, largeFileSize)
+)
+
+type testRequest struct {
+	name           string
+	endpoint       string
+	expectedStatus int
+	expectedBody   []byte
+	isProxyError   bool
+}
+
+type mockOriginProxy struct {
+}
+
+func (moc *mockOriginProxy) Proxy(w ResponseWriter, r *http.Request, sourceConnectionType Type) error {
+	if sourceConnectionType == TypeWebsocket {
+		return wsEndpoint(w, r)
+	}
+	switch r.URL.Path {
+	case "/ok":
+		originRespEndpoint(w, http.StatusOK, []byte(http.StatusText(http.StatusOK)))
+	case "/large_file":
+		originRespEndpoint(w, http.StatusOK, testLargeResp)
+	case "/400":
+		originRespEndpoint(w, http.StatusBadRequest, []byte(http.StatusText(http.StatusBadRequest)))
+	case "/500":
+		originRespEndpoint(w, http.StatusInternalServerError, []byte(http.StatusText(http.StatusInternalServerError)))
+	case "/error":
+		return fmt.Errorf("Failed to proxy to origin")
+	default:
+		originRespEndpoint(w, http.StatusNotFound, []byte("page not found"))
+	}
+	return nil
+}
+
+type nowriter struct {
+	io.Reader
+}
+
+func (nowriter) Write(p []byte) (int, error) {
+	return 0, fmt.Errorf("Writer not implemented")
+}
+
+func wsEndpoint(w ResponseWriter, r *http.Request) error {
+	resp := &http.Response{
+		StatusCode: http.StatusSwitchingProtocols,
+	}
+	_ = w.WriteRespHeaders(resp.StatusCode, resp.Header)
+	clientReader := nowriter{r.Body}
+	go func() {
+		for {
+			data, err := wsutil.ReadClientText(clientReader)
+			if err != nil {
+				return
+			}
+			if err := wsutil.WriteServerText(w, data); err != nil {
+				return
+			}
+		}
+	}()
+	<-r.Context().Done()
+	return nil
+}
+
+func originRespEndpoint(w ResponseWriter, status int, data []byte) {
+	resp := &http.Response{
+		StatusCode: status,
+	}
+	_ = w.WriteRespHeaders(resp.StatusCode, resp.Header)
+	_, _ = w.Write(data)
+}
+
+type mockConnectedFuse struct{}
+
+func (mcf mockConnectedFuse) Connected() {}
+
+func (mcf mockConnectedFuse) IsConnected() bool {
+	return true
+}
+
+func TestIsEventStream(t *testing.T) {
+	tests := []struct {
+		headers       http.Header
+		isEventStream bool
+	}{
+		{
+			headers:       newHeader("Content-Type", "text/event-stream"),
+			isEventStream: true,
+		},
+		{
+			headers:       newHeader("content-type", "text/event-stream"),
+			isEventStream: true,
+		},
+		{
+			headers:       newHeader("Content-Type", "text/event-stream; charset=utf-8"),
+			isEventStream: true,
+		},
+		{
+			headers:       newHeader("Content-Type", "application/json"),
+			isEventStream: false,
+		},
+		{
+			headers:       http.Header{},
+			isEventStream: false,
+		},
+	}
+	for _, test := range tests {
+		assert.Equal(t, test.isEventStream, IsServerSentEvent(test.headers))
+	}
+}
+
+func newHeader(key, value string) http.Header {
+	header := http.Header{}
+	header.Add(key, value)
+	return header
+}

connection/errors.go

@@ -0,0 +1,68 @@
+package connection
+
+import (
+	"github.com/cloudflare/cloudflared/edgediscovery"
+	"github.com/cloudflare/cloudflared/h2mux"
+	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+)
+
+const (
+	DuplicateConnectionError = "EDUPCONN"
+)
+
+type DupConnRegisterTunnelError struct{}
+
+var errDuplicationConnection = DupConnRegisterTunnelError{}
+
+func (e DupConnRegisterTunnelError) Error() string {
+	return "already connected to this server, trying another address"
+}
+
+// RegisterTunnel error from server
+type ServerRegisterTunnelError struct {
+	Cause     error
+	Permanent bool
+}
+
+func (e ServerRegisterTunnelError) Error() string {
+	return e.Cause.Error()
+}
+
+func serverRegistrationErrorFromRPC(err error) ServerRegisterTunnelError {
+	if retryable, ok := err.(*tunnelpogs.RetryableError); ok {
+		return ServerRegisterTunnelError{
+			Cause:     retryable.Unwrap(),
+			Permanent: false,
+		}
+	}
+	return ServerRegisterTunnelError{
+		Cause:     err,
+		Permanent: true,
+	}
+}
+
+type muxerShutdownError struct{}
+
+func (e muxerShutdownError) Error() string {
+	return "muxer shutdown"
+}
+
+var errMuxerStopped = muxerShutdownError{}
+
+func isHandshakeErrRecoverable(err error, connIndex uint8, observer *Observer) bool {
+	log := observer.log.With().
+		Uint8(LogFieldConnIndex, connIndex).
+		Err(err).
+		Logger()
+
+	switch err.(type) {
+	case edgediscovery.DialError:
+		log.Error().Msg("Connection unable to dial edge")
+	case h2mux.MuxerHandshakeError:
+		log.Error().Msg("Connection handshake with edge server failed")
+	default:
+		log.Error().Msg("Connection failed")
+		return false
+	}
+	return true
+}

connection/event.go

@@ -0,0 +1,27 @@
+package connection
+
+// Event is something that happened to a connection, e.g. disconnection or registration.
+type Event struct {
+	Index     uint8
+	EventType Status
+	Location  string
+	URL       string
+}
+
+// Status is the status of a connection.
+type Status int
+
+const (
+	// Disconnected means the connection to the edge was broken.
+	Disconnected Status = iota
+	// Connected means the connection to the edge was successfully established.
+	Connected
+	// Reconnecting means the connection to the edge is being re-established.
+	Reconnecting
+	// SetURL means this connection's tunnel was given a URL by the edge. Used for free tunnels.
+	SetURL
+	// RegisteringTunnel means the non-named tunnel is registering its connection.
+	RegisteringTunnel
+	// We're unregistering tunnel from the edge in preparation for a disconnect
+	Unregistering
+)

connection/h2mux.go

@@ -0,0 +1,260 @@
+package connection
+
+import (
+	"context"
+	"io"
+	"net"
+	"net/http"
+	"time"
+
+	"github.com/cloudflare/cloudflared/h2mux"
+	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+	"github.com/cloudflare/cloudflared/websocket"
+
+	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
+	"golang.org/x/sync/errgroup"
+)
+
+const (
+	muxerTimeout      = 5 * time.Second
+	openStreamTimeout = 30 * time.Second
+)
+
+type h2muxConnection struct {
+	config      *Config
+	muxerConfig *MuxerConfig
+	muxer       *h2mux.Muxer
+	// connectionID is only used by metrics, and prometheus requires labels to be string
+	connIndexStr string
+	connIndex    uint8
+
+	observer          *Observer
+	gracefulShutdownC <-chan struct{}
+	stoppedGracefully bool
+
+	// newRPCClientFunc allows us to mock RPCs during testing
+	newRPCClientFunc func(context.Context, io.ReadWriteCloser, *zerolog.Logger) NamedTunnelRPCClient
+}
+
+type MuxerConfig struct {
+	HeartbeatInterval  time.Duration
+	MaxHeartbeats      uint64
+	CompressionSetting h2mux.CompressionSetting
+	MetricsUpdateFreq  time.Duration
+}
+
+func (mc *MuxerConfig) H2MuxerConfig(h h2mux.MuxedStreamHandler, log *zerolog.Logger) *h2mux.MuxerConfig {
+	return &h2mux.MuxerConfig{
+		Timeout:            muxerTimeout,
+		Handler:            h,
+		IsClient:           true,
+		HeartbeatInterval:  mc.HeartbeatInterval,
+		MaxHeartbeats:      mc.MaxHeartbeats,
+		Log:                log,
+		CompressionQuality: mc.CompressionSetting,
+	}
+}
+
+// NewTunnelHandler returns a TunnelHandler, origin LAN IP and error
+func NewH2muxConnection(
+	config *Config,
+	muxerConfig *MuxerConfig,
+	edgeConn net.Conn,
+	connIndex uint8,
+	observer *Observer,
+	gracefulShutdownC <-chan struct{},
+) (*h2muxConnection, error, bool) {
+	h := &h2muxConnection{
+		config:            config,
+		muxerConfig:       muxerConfig,
+		connIndexStr:      uint8ToString(connIndex),
+		connIndex:         connIndex,
+		observer:          observer,
+		gracefulShutdownC: gracefulShutdownC,
+		newRPCClientFunc:  newRegistrationRPCClient,
+	}
+
+	// Establish a muxed connection with the edge
+	// Client mux handshake with agent server
+	muxer, err := h2mux.Handshake(edgeConn, edgeConn, *muxerConfig.H2MuxerConfig(h, observer.logTransport), h2mux.ActiveStreams)
+	if err != nil {
+		recoverable := isHandshakeErrRecoverable(err, connIndex, observer)
+		return nil, err, recoverable
+	}
+	h.muxer = muxer
+	return h, nil, false
+}
+
+func (h *h2muxConnection) ServeNamedTunnel(ctx context.Context, namedTunnel *NamedTunnelConfig, connOptions *tunnelpogs.ConnectionOptions, connectedFuse ConnectedFuse) error {
+	errGroup, serveCtx := errgroup.WithContext(ctx)
+	errGroup.Go(func() error {
+		return h.serveMuxer(serveCtx)
+	})
+
+	errGroup.Go(func() error {
+		if err := h.registerNamedTunnel(serveCtx, namedTunnel, connOptions); err != nil {
+			return err
+		}
+		connectedFuse.Connected()
+		return nil
+	})
+
+	errGroup.Go(func() error {
+		h.controlLoop(serveCtx, connectedFuse, true)
+		return nil
+	})
+
+	err := errGroup.Wait()
+	if err == errMuxerStopped {
+		if h.stoppedGracefully {
+			return nil
+		}
+		h.observer.log.Info().Uint8(LogFieldConnIndex, h.connIndex).Msg("Unexpected muxer shutdown")
+	}
+	return err
+}
+
+func (h *h2muxConnection) ServeClassicTunnel(ctx context.Context, classicTunnel *ClassicTunnelConfig, credentialManager CredentialManager, registrationOptions *tunnelpogs.RegistrationOptions, connectedFuse ConnectedFuse) error {
+	errGroup, serveCtx := errgroup.WithContext(ctx)
+	errGroup.Go(func() error {
+		return h.serveMuxer(serveCtx)
+	})
+
+	errGroup.Go(func() (err error) {
+		defer func() {
+			if err == nil {
+				connectedFuse.Connected()
+			}
+		}()
+		if classicTunnel.UseReconnectToken && connectedFuse.IsConnected() {
+			err := h.reconnectTunnel(ctx, credentialManager, classicTunnel, registrationOptions)
+			if err == nil {
+				return nil
+			}
+			// log errors and proceed to RegisterTunnel
+			h.observer.log.Err(err).
+				Uint8(LogFieldConnIndex, h.connIndex).
+				Msg("Couldn't reconnect connection. Re-registering it instead.")
+		}
+		return h.registerTunnel(ctx, credentialManager, classicTunnel, registrationOptions)
+	})
+
+	errGroup.Go(func() error {
+		h.controlLoop(serveCtx, connectedFuse, false)
+		return nil
+	})
+
+	err := errGroup.Wait()
+	if err == errMuxerStopped {
+		if h.stoppedGracefully {
+			return nil
+		}
+		h.observer.log.Info().Uint8(LogFieldConnIndex, h.connIndex).Msg("Unexpected muxer shutdown")
+	}
+	return err
+}
+
+func (h *h2muxConnection) serveMuxer(ctx context.Context) error {
+	// All routines should stop when muxer finish serving. When muxer is shutdown
+	// gracefully, it doesn't return an error, so we need to return errMuxerShutdown
+	// here to notify other routines to stop
+	err := h.muxer.Serve(ctx)
+	if err == nil {
+		return errMuxerStopped
+	}
+	return err
+}
+
+func (h *h2muxConnection) controlLoop(ctx context.Context, connectedFuse ConnectedFuse, isNamedTunnel bool) {
+	updateMetricsTickC := time.Tick(h.muxerConfig.MetricsUpdateFreq)
+	var shutdownCompleted <-chan struct{}
+	for {
+		select {
+		case <-h.gracefulShutdownC:
+			if connectedFuse.IsConnected() {
+				h.unregister(isNamedTunnel)
+			}
+			h.stoppedGracefully = true
+			h.gracefulShutdownC = nil
+			shutdownCompleted = h.muxer.Shutdown()
+
+		case <-shutdownCompleted:
+			return
+
+		case <-ctx.Done():
+			// UnregisterTunnel blocks until the RPC call returns
+			if !h.stoppedGracefully && connectedFuse.IsConnected() {
+				h.unregister(isNamedTunnel)
+			}
+			h.muxer.Shutdown()
+			// don't wait for shutdown to finish when context is closed, this is the hard termination path
+			return
+
+		case <-updateMetricsTickC:
+			h.observer.metrics.updateMuxerMetrics(h.connIndexStr, h.muxer.Metrics())
+		}
+	}
+}
+
+func (h *h2muxConnection) newRPCStream(ctx context.Context, rpcName rpcName) (*h2mux.MuxedStream, error) {
+	openStreamCtx, openStreamCancel := context.WithTimeout(ctx, openStreamTimeout)
+	defer openStreamCancel()
+	stream, err := h.muxer.OpenRPCStream(openStreamCtx)
+	if err != nil {
+		return nil, err
+	}
+	return stream, nil
+}
+
+func (h *h2muxConnection) ServeStream(stream *h2mux.MuxedStream) error {
+	respWriter := &h2muxRespWriter{stream}
+
+	req, reqErr := h.newRequest(stream)
+	if reqErr != nil {
+		respWriter.WriteErrorResponse()
+		return reqErr
+	}
+
+	var sourceConnectionType = TypeHTTP
+	if websocket.IsWebSocketUpgrade(req) {
+		sourceConnectionType = TypeWebsocket
+	}
+
+	err := h.config.OriginProxy.Proxy(respWriter, req, sourceConnectionType)
+	if err != nil {
+		respWriter.WriteErrorResponse()
+		return err
+	}
+	return nil
+}
+
+func (h *h2muxConnection) newRequest(stream *h2mux.MuxedStream) (*http.Request, error) {
+	req, err := http.NewRequest("GET", "http://localhost:8080", h2mux.MuxedStreamReader{MuxedStream: stream})
+	if err != nil {
+		return nil, errors.Wrap(err, "Unexpected error from http.NewRequest")
+	}
+	err = h2mux.H2RequestHeadersToH1Request(stream.Headers, req)
+	if err != nil {
+		return nil, errors.Wrap(err, "invalid request received")
+	}
+	return req, nil
+}
+
+type h2muxRespWriter struct {
+	*h2mux.MuxedStream
+}
+
+func (rp *h2muxRespWriter) WriteRespHeaders(status int, header http.Header) error {
+	headers := h2mux.H1ResponseToH2ResponseHeaders(status, header)
+	headers = append(headers, h2mux.Header{Name: ResponseMetaHeaderField, Value: responseMetaHeaderOrigin})
+	return rp.WriteHeaders(headers)
+}
+
+func (rp *h2muxRespWriter) WriteErrorResponse() {
+	_ = rp.WriteHeaders([]h2mux.Header{
+		{Name: ":status", Value: "502"},
+		{Name: ResponseMetaHeaderField, Value: responseMetaHeaderCfd},
+	})
+	_, _ = rp.Write([]byte("502 Bad Gateway"))
+}

connection/h2mux_test.go

@@ -0,0 +1,301 @@
+package connection
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"strconv"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/gobwas/ws/wsutil"
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/cloudflare/cloudflared/h2mux"
+)
+
+var (
+	testMuxerConfig = &MuxerConfig{
+		HeartbeatInterval:  time.Second * 5,
+		MaxHeartbeats:      5,
+		CompressionSetting: 0,
+		MetricsUpdateFreq:  time.Second * 5,
+	}
+)
+
+func newH2MuxConnection(t require.TestingT) (*h2muxConnection, *h2mux.Muxer) {
+	edgeConn, originConn := net.Pipe()
+	edgeMuxChan := make(chan *h2mux.Muxer)
+	go func() {
+		edgeMuxConfig := h2mux.MuxerConfig{
+			Log: &log,
+			Handler: h2mux.MuxedStreamFunc(func(stream *h2mux.MuxedStream) error {
+				// we only expect RPC traffic in client->edge direction, provide minimal support for mocking
+				require.True(t, stream.IsRPCStream())
+				return stream.WriteHeaders([]h2mux.Header{
+					{Name:  ":status", Value: "200"},
+				})
+			}),
+		}
+		edgeMux, err := h2mux.Handshake(edgeConn, edgeConn, edgeMuxConfig, h2mux.ActiveStreams)
+		require.NoError(t, err)
+		edgeMuxChan <- edgeMux
+	}()
+	var connIndex = uint8(0)
+	testObserver := NewObserver(&log, &log, false)
+	h2muxConn, err, _ := NewH2muxConnection(testConfig, testMuxerConfig, originConn, connIndex, testObserver, nil)
+	require.NoError(t, err)
+	return h2muxConn, <-edgeMuxChan
+}
+
+func TestServeStreamHTTP(t *testing.T) {
+	tests := []testRequest{
+		{
+			name:           "ok",
+			endpoint:       "/ok",
+			expectedStatus: http.StatusOK,
+			expectedBody:   []byte(http.StatusText(http.StatusOK)),
+		},
+		{
+			name:           "large_file",
+			endpoint:       "/large_file",
+			expectedStatus: http.StatusOK,
+			expectedBody:   testLargeResp,
+		},
+		{
+			name:           "Bad request",
+			endpoint:       "/400",
+			expectedStatus: http.StatusBadRequest,
+			expectedBody:   []byte(http.StatusText(http.StatusBadRequest)),
+		},
+		{
+			name:           "Internal server error",
+			endpoint:       "/500",
+			expectedStatus: http.StatusInternalServerError,
+			expectedBody:   []byte(http.StatusText(http.StatusInternalServerError)),
+		},
+		{
+			name:           "Proxy error",
+			endpoint:       "/error",
+			expectedStatus: http.StatusBadGateway,
+			expectedBody:   nil,
+			isProxyError:   true,
+		},
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	h2muxConn, edgeMux := newH2MuxConnection(t)
+
+	var wg sync.WaitGroup
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		_ = edgeMux.Serve(ctx)
+	}()
+	go func() {
+		defer wg.Done()
+		err := h2muxConn.serveMuxer(ctx)
+		require.Error(t, err)
+	}()
+
+	for _, test := range tests {
+		headers := []h2mux.Header{
+			{
+				Name:  ":path",
+				Value: test.endpoint,
+			},
+		}
+		stream, err := edgeMux.OpenStream(ctx, headers, nil)
+		require.NoError(t, err)
+		require.True(t, hasHeader(stream, ":status", strconv.Itoa(test.expectedStatus)))
+
+		if test.isProxyError {
+			assert.True(t, hasHeader(stream, ResponseMetaHeaderField, responseMetaHeaderCfd))
+		} else {
+			assert.True(t, hasHeader(stream, ResponseMetaHeaderField, responseMetaHeaderOrigin))
+			body := make([]byte, len(test.expectedBody))
+			_, err = stream.Read(body)
+			require.NoError(t, err)
+			require.Equal(t, test.expectedBody, body)
+		}
+	}
+	cancel()
+	wg.Wait()
+}
+
+func TestServeStreamWS(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	h2muxConn, edgeMux := newH2MuxConnection(t)
+
+	var wg sync.WaitGroup
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		edgeMux.Serve(ctx)
+	}()
+	go func() {
+		defer wg.Done()
+		err := h2muxConn.serveMuxer(ctx)
+		require.Error(t, err)
+	}()
+
+	headers := []h2mux.Header{
+		{
+			Name:  ":path",
+			Value: "/ws",
+		},
+		{
+			Name:  "connection",
+			Value: "upgrade",
+		},
+		{
+			Name:  "upgrade",
+			Value: "websocket",
+		},
+	}
+
+	readPipe, writePipe := io.Pipe()
+	stream, err := edgeMux.OpenStream(ctx, headers, readPipe)
+	require.NoError(t, err)
+
+	require.True(t, hasHeader(stream, ":status", strconv.Itoa(http.StatusSwitchingProtocols)))
+	assert.True(t, hasHeader(stream, ResponseMetaHeaderField, responseMetaHeaderOrigin))
+
+	data := []byte("test websocket")
+	err = wsutil.WriteClientText(writePipe, data)
+	require.NoError(t, err)
+
+	respBody, err := wsutil.ReadServerText(stream)
+	require.NoError(t, err)
+	require.Equal(t, data, respBody, fmt.Sprintf("Expect %s, got %s", string(data), string(respBody)))
+
+	cancel()
+	wg.Wait()
+}
+
+func TestGracefulShutdownH2Mux(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	h2muxConn, edgeMux := newH2MuxConnection(t)
+
+	shutdownC := make(chan struct{})
+	unregisteredC := make(chan struct{})
+	h2muxConn.gracefulShutdownC = shutdownC
+	h2muxConn.newRPCClientFunc = func(_ context.Context, _ io.ReadWriteCloser, _ *zerolog.Logger) NamedTunnelRPCClient {
+		return &mockNamedTunnelRPCClient{
+			registered:   nil,
+			unregistered: unregisteredC,
+		}
+	}
+
+	var wg sync.WaitGroup
+	wg.Add(3)
+	go func() {
+		defer wg.Done()
+		_ = edgeMux.Serve(ctx)
+	}()
+	go func() {
+		defer wg.Done()
+		_ = h2muxConn.serveMuxer(ctx)
+	}()
+
+	go func() {
+		defer wg.Done()
+		h2muxConn.controlLoop(ctx, &mockConnectedFuse{}, true)
+	}()
+
+	time.Sleep(100 * time.Millisecond)
+	close(shutdownC)
+
+	select {
+	case <-unregisteredC:
+		break // ok
+	case <-time.Tick(time.Second):
+		assert.Fail(t, "timed out waiting for control loop to unregister")
+	}
+
+	cancel()
+	wg.Wait()
+
+	assert.True(t, h2muxConn.stoppedGracefully)
+	assert.Nil(t, h2muxConn.gracefulShutdownC)
+}
+
+func hasHeader(stream *h2mux.MuxedStream, name, val string) bool {
+	for _, header := range stream.Headers {
+		if header.Name == name && header.Value == val {
+			return true
+		}
+	}
+	return false
+}
+
+func benchmarkServeStreamHTTPSimple(b *testing.B, test testRequest) {
+	ctx, cancel := context.WithCancel(context.Background())
+	h2muxConn, edgeMux := newH2MuxConnection(b)
+
+	var wg sync.WaitGroup
+	wg.Add(2)
+	go func() {
+		defer wg.Done()
+		edgeMux.Serve(ctx)
+	}()
+	go func() {
+		defer wg.Done()
+		err := h2muxConn.serveMuxer(ctx)
+		require.Error(b, err)
+	}()
+
+	headers := []h2mux.Header{
+		{
+			Name:  ":path",
+			Value: test.endpoint,
+		},
+	}
+
+	body := make([]byte, len(test.expectedBody))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		b.StartTimer()
+		stream, openstreamErr := edgeMux.OpenStream(ctx, headers, nil)
+		_, readBodyErr := stream.Read(body)
+		b.StopTimer()
+
+		require.NoError(b, openstreamErr)
+		assert.True(b, hasHeader(stream, ResponseMetaHeaderField, responseMetaHeaderOrigin))
+		require.True(b, hasHeader(stream, ":status", strconv.Itoa(http.StatusOK)))
+		require.NoError(b, readBodyErr)
+		require.Equal(b, test.expectedBody, body)
+	}
+
+	cancel()
+	wg.Wait()
+}
+
+func BenchmarkServeStreamHTTPSimple(b *testing.B) {
+	test := testRequest{
+		name:           "ok",
+		endpoint:       "/ok",
+		expectedStatus: http.StatusOK,
+		expectedBody:   []byte(http.StatusText(http.StatusOK)),
+	}
+
+	benchmarkServeStreamHTTPSimple(b, test)
+}
+
+func BenchmarkServeStreamHTTPLargeFile(b *testing.B) {
+	test := testRequest{
+		name:           "large_file",
+		endpoint:       "/large_file",
+		expectedStatus: http.StatusOK,
+		expectedBody:   testLargeResp,
+	}
+
+	benchmarkServeStreamHTTPSimple(b, test)
+}

connection/header.go

@@ -0,0 +1,31 @@
+package connection
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/cloudflare/cloudflared/h2mux"
+)
+
+const (
+	ResponseMetaHeaderField = "cf-cloudflared-response-meta"
+)
+
+var (
+	canonicalResponseUserHeadersField = http.CanonicalHeaderKey(h2mux.ResponseUserHeadersField)
+	canonicalResponseMetaHeaderField  = http.CanonicalHeaderKey(ResponseMetaHeaderField)
+	responseMetaHeaderCfd             = mustInitRespMetaHeader("cloudflared")
+	responseMetaHeaderOrigin          = mustInitRespMetaHeader("origin")
+)
+
+type responseMetaHeader struct {
+	Source string `json:"src"`
+}
+
+func mustInitRespMetaHeader(src string) string {
+	header, err := json.Marshal(responseMetaHeader{Source: src})
+	if err != nil {
+		panic(fmt.Sprintf("Failed to serialize response meta header = %s, err: %v", src, err))
+	}
+	return string(header)
+}

connection/http2.go

@@ -0,0 +1,275 @@
+package connection
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+
+	"github.com/cloudflare/cloudflared/h2mux"
+	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
+	"github.com/rs/zerolog"
+	"golang.org/x/net/http2"
+)
+
+const (
+	internalUpgradeHeader = "Cf-Cloudflared-Proxy-Connection-Upgrade"
+	tcpStreamHeader       = "Cf-Cloudflared-Proxy-Src"
+	websocketUpgrade      = "websocket"
+	controlStreamUpgrade  = "control-stream"
+)
+
+var errEdgeConnectionClosed = fmt.Errorf("connection with edge closed")
+
+type http2Connection struct {
+	conn         net.Conn
+	server       *http2.Server
+	config       *Config
+	namedTunnel  *NamedTunnelConfig
+	connOptions  *tunnelpogs.ConnectionOptions
+	observer     *Observer
+	connIndexStr string
+	connIndex    uint8
+	// newRPCClientFunc allows us to mock RPCs during testing
+	newRPCClientFunc func(context.Context, io.ReadWriteCloser, *zerolog.Logger) NamedTunnelRPCClient
+
+	activeRequestsWG  sync.WaitGroup
+	connectedFuse     ConnectedFuse
+	gracefulShutdownC <-chan struct{}
+	stoppedGracefully bool
+	controlStreamErr  error // result of running control stream handler
+}
+
+func NewHTTP2Connection(
+	conn net.Conn,
+	config *Config,
+	namedTunnelConfig *NamedTunnelConfig,
+	connOptions *tunnelpogs.ConnectionOptions,
+	observer *Observer,
+	connIndex uint8,
+	connectedFuse ConnectedFuse,
+	gracefulShutdownC <-chan struct{},
+) *http2Connection {
+	return &http2Connection{
+		conn: conn,
+		server: &http2.Server{
+			MaxConcurrentStreams: math.MaxUint32,
+		},
+		config:            config,
+		namedTunnel:       namedTunnelConfig,
+		connOptions:       connOptions,
+		observer:          observer,
+		connIndexStr:      uint8ToString(connIndex),
+		connIndex:         connIndex,
+		newRPCClientFunc:  newRegistrationRPCClient,
+		connectedFuse:     connectedFuse,
+		gracefulShutdownC: gracefulShutdownC,
+	}
+}
+
+func (c *http2Connection) Serve(ctx context.Context) error {
+	go func() {
+		<-ctx.Done()
+		c.close()
+	}()
+	c.server.ServeConn(c.conn, &http2.ServeConnOpts{
+		Context: ctx,
+		Handler: c,
+	})
+
+	switch {
+	case c.stoppedGracefully:
+		return nil
+	case c.controlStreamErr != nil:
+		return c.controlStreamErr
+	default:
+		c.observer.log.Info().Uint8(LogFieldConnIndex, c.connIndex).Msg("Lost connection with the edge")
+		return errEdgeConnectionClosed
+	}
+}
+
+func (c *http2Connection) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	c.activeRequestsWG.Add(1)
+	defer c.activeRequestsWG.Done()
+
+	connType := determineHTTP2Type(r)
+	respWriter, err := newHTTP2RespWriter(r, w, connType)
+	if err != nil {
+		c.observer.log.Error().Msg(err.Error())
+		return
+	}
+
+	var proxyErr error
+	switch connType {
+	case TypeControlStream:
+		proxyErr = c.serveControlStream(r.Context(), respWriter)
+		c.controlStreamErr = proxyErr
+	case TypeWebsocket:
+		stripWebsocketUpgradeHeader(r)
+		proxyErr = c.config.OriginProxy.Proxy(respWriter, r, TypeWebsocket)
+	default:
+		proxyErr = c.config.OriginProxy.Proxy(respWriter, r, connType)
+	}
+	if proxyErr != nil {
+		respWriter.WriteErrorResponse()
+	}
+}
+
+func (c *http2Connection) serveControlStream(ctx context.Context, respWriter *http2RespWriter) error {
+	rpcClient := c.newRPCClientFunc(ctx, respWriter, c.observer.log)
+	defer rpcClient.Close()
+
+	if err := rpcClient.RegisterConnection(ctx, c.namedTunnel, c.connOptions, c.connIndex, c.observer); err != nil {
+		return err
+	}
+	c.connectedFuse.Connected()
+
+	// wait for connection termination or start of graceful shutdown
+	select {
+	case <-ctx.Done():
+		break
+	case <-c.gracefulShutdownC:
+		c.stoppedGracefully = true
+	}
+
+	c.observer.sendUnregisteringEvent(c.connIndex)
+	rpcClient.GracefulShutdown(ctx, c.config.GracePeriod)
+	c.observer.log.Info().Uint8(LogFieldConnIndex, c.connIndex).Msg("Unregistered tunnel connection")
+	return nil
+}
+
+func (c *http2Connection) close() {
+	// Wait for all serve HTTP handlers to return
+	c.activeRequestsWG.Wait()
+	c.conn.Close()
+}
+
+type http2RespWriter struct {
+	r           io.Reader
+	w           http.ResponseWriter
+	flusher     http.Flusher
+	shouldFlush bool
+}
+
+func newHTTP2RespWriter(r *http.Request, w http.ResponseWriter, connType Type) (*http2RespWriter, error) {
+	flusher, isFlusher := w.(http.Flusher)
+	if !isFlusher {
+		respWriter := &http2RespWriter{
+			r: r.Body,
+			w: w,
+		}
+		respWriter.WriteErrorResponse()
+		return nil, fmt.Errorf("%T doesn't implement http.Flusher", w)
+	}
+
+	return &http2RespWriter{
+		r:           r.Body,
+		w:           w,
+		flusher:     flusher,
+		shouldFlush: connType.shouldFlush(),
+	}, nil
+}
+
+func (rp *http2RespWriter) WriteRespHeaders(status int, header http.Header) error {
+	dest := rp.w.Header()
+	userHeaders := make(http.Header, len(header))
+	for header, values := range header {
+		// Since these are http2 headers, they're required to be lowercase
+		h2name := strings.ToLower(header)
+		for _, v := range values {
+			if h2name == "content-length" {
+				// This header has meaning in HTTP/2 and will be used by the edge,
+				// so it should be sent as an HTTP/2 response header.
+				dest.Add(h2name, v)
+				// Since these are http2 headers, they're required to be lowercase
+			} else if !h2mux.IsControlHeader(h2name) || h2mux.IsWebsocketClientHeader(h2name) {
+				// User headers, on the other hand, must all be serialized so that
+				// HTTP/2 header validation won't be applied to HTTP/1 header values
+				userHeaders.Add(h2name, v)
+			}
+		}
+	}
+
+	// Perform user header serialization and set them in the single header
+	dest.Set(canonicalResponseUserHeadersField, h2mux.SerializeHeaders(userHeaders))
+	rp.setResponseMetaHeader(responseMetaHeaderOrigin)
+	// HTTP2 removes support for 101 Switching Protocols https://tools.ietf.org/html/rfc7540#section-8.1.1
+	if status == http.StatusSwitchingProtocols {
+		status = http.StatusOK
+	}
+	rp.w.WriteHeader(status)
+	if IsServerSentEvent(header) {
+		rp.shouldFlush = true
+	}
+	if rp.shouldFlush {
+		rp.flusher.Flush()
+	}
+	return nil
+}
+
+func (rp *http2RespWriter) WriteErrorResponse() {
+	rp.setResponseMetaHeader(responseMetaHeaderCfd)
+	rp.w.WriteHeader(http.StatusBadGateway)
+}
+
+func (rp *http2RespWriter) setResponseMetaHeader(value string) {
+	rp.w.Header().Set(canonicalResponseMetaHeaderField, value)
+}
+
+func (rp *http2RespWriter) Read(p []byte) (n int, err error) {
+	return rp.r.Read(p)
+}
+
+func (rp *http2RespWriter) Write(p []byte) (n int, err error) {
+	defer func() {
+		// Implementer of OriginClient should make sure it doesn't write to the connection after Proxy returns
+		// Register a recover routine just in case.
+		if r := recover(); r != nil {
+			println("Recover from http2 response writer panic, error", r)
+		}
+	}()
+	n, err = rp.w.Write(p)
+	if err == nil && rp.shouldFlush {
+		rp.flusher.Flush()
+	}
+	return n, err
+}
+
+func (rp *http2RespWriter) Close() error {
+	return nil
+}
+
+func determineHTTP2Type(r *http.Request) Type {
+	switch {
+	case isWebsocketUpgrade(r):
+		return TypeWebsocket
+	case IsTCPStream(r):
+		return TypeTCP
+	case isControlStreamUpgrade(r):
+		return TypeControlStream
+	default:
+		return TypeHTTP
+	}
+}
+
+func isControlStreamUpgrade(r *http.Request) bool {
+	return r.Header.Get(internalUpgradeHeader) == controlStreamUpgrade
+}
+
+func isWebsocketUpgrade(r *http.Request) bool {
+	return r.Header.Get(internalUpgradeHeader) == websocketUpgrade
+}
+
+// IsTCPStream discerns if the connection request needs a tcp stream proxy.
+func IsTCPStream(r *http.Request) bool {
+	return r.Header.Get(tcpStreamHeader) != ""
+}
+
+func stripWebsocketUpgradeHeader(r *http.Request) {
+	r.Header.Del(internalUpgradeHeader)
+}

connection/http2_test.go

@@ -0,0 +1,409 @@
+package connection
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
+	"github.com/gobwas/ws/wsutil"
+	"github.com/rs/zerolog"
+	"github.com/stretchr/testify/require"
+	"golang.org/x/net/http2"
+)
+
+var (
+	testTransport = http2.Transport{}
+)
+
+func newTestHTTP2Connection() (*http2Connection, net.Conn) {
+	edgeConn, originConn := net.Pipe()
+	var connIndex = uint8(0)
+	return NewHTTP2Connection(
+		originConn,
+		testConfig,
+		&NamedTunnelConfig{},
+		&pogs.ConnectionOptions{},
+		NewObserver(&log, &log, false),
+		connIndex,
+		mockConnectedFuse{},
+		nil,
+	), edgeConn
+}
+
+func TestServeHTTP(t *testing.T) {
+	tests := []testRequest{
+		{
+			name:           "ok",
+			endpoint:       "ok",
+			expectedStatus: http.StatusOK,
+			expectedBody:   []byte(http.StatusText(http.StatusOK)),
+		},
+		{
+			name:           "large_file",
+			endpoint:       "large_file",
+			expectedStatus: http.StatusOK,
+			expectedBody:   testLargeResp,
+		},
+		{
+			name:           "Bad request",
+			endpoint:       "400",
+			expectedStatus: http.StatusBadRequest,
+			expectedBody:   []byte(http.StatusText(http.StatusBadRequest)),
+		},
+		{
+			name:           "Internal server error",
+			endpoint:       "500",
+			expectedStatus: http.StatusInternalServerError,
+			expectedBody:   []byte(http.StatusText(http.StatusInternalServerError)),
+		},
+		{
+			name:           "Proxy error",
+			endpoint:       "error",
+			expectedStatus: http.StatusBadGateway,
+			expectedBody:   nil,
+			isProxyError:   true,
+		},
+	}
+
+	http2Conn, edgeConn := newTestHTTP2Connection()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.Serve(ctx)
+	}()
+
+	edgeHTTP2Conn, err := testTransport.NewClientConn(edgeConn)
+	require.NoError(t, err)
+
+	for _, test := range tests {
+		endpoint := fmt.Sprintf("http://localhost:8080/%s", test.endpoint)
+		req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, nil)
+		require.NoError(t, err)
+
+		resp, err := edgeHTTP2Conn.RoundTrip(req)
+		require.NoError(t, err)
+		require.Equal(t, test.expectedStatus, resp.StatusCode)
+		if test.expectedBody != nil {
+			respBody, err := ioutil.ReadAll(resp.Body)
+			require.NoError(t, err)
+			require.Equal(t, test.expectedBody, respBody)
+		}
+		if test.isProxyError {
+			require.Equal(t, responseMetaHeaderCfd, resp.Header.Get(ResponseMetaHeaderField))
+		} else {
+			require.Equal(t, responseMetaHeaderOrigin, resp.Header.Get(ResponseMetaHeaderField))
+		}
+	}
+	cancel()
+	wg.Wait()
+}
+
+type mockNamedTunnelRPCClient struct {
+	shouldFail   error
+	registered   chan struct{}
+	unregistered chan struct{}
+}
+
+func (mc mockNamedTunnelRPCClient) RegisterConnection(
+	c context.Context,
+	config *NamedTunnelConfig,
+	options *tunnelpogs.ConnectionOptions,
+	connIndex uint8,
+	observer *Observer,
+) error {
+	if mc.shouldFail != nil {
+		return mc.shouldFail
+	}
+	close(mc.registered)
+	return nil
+}
+
+func (mc mockNamedTunnelRPCClient) GracefulShutdown(ctx context.Context, gracePeriod time.Duration) {
+	close(mc.unregistered)
+}
+
+func (mockNamedTunnelRPCClient) Close() {}
+
+type mockRPCClientFactory struct {
+	shouldFail   error
+	registered   chan struct{}
+	unregistered chan struct{}
+}
+
+func (mf *mockRPCClientFactory) newMockRPCClient(context.Context, io.ReadWriteCloser, *zerolog.Logger) NamedTunnelRPCClient {
+	return mockNamedTunnelRPCClient{
+		shouldFail:   mf.shouldFail,
+		registered:   mf.registered,
+		unregistered: mf.unregistered,
+	}
+}
+
+type wsRespWriter struct {
+	*httptest.ResponseRecorder
+	readPipe  *io.PipeReader
+	writePipe *io.PipeWriter
+}
+
+func newWSRespWriter() *wsRespWriter {
+	readPipe, writePipe := io.Pipe()
+	return &wsRespWriter{
+		httptest.NewRecorder(),
+		readPipe,
+		writePipe,
+	}
+}
+
+func (w *wsRespWriter) RespBody() io.ReadWriter {
+	return nowriter{w.readPipe}
+}
+
+func (w *wsRespWriter) Write(data []byte) (n int, err error) {
+	return w.writePipe.Write(data)
+}
+
+func TestServeWS(t *testing.T) {
+	http2Conn, _ := newTestHTTP2Connection()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.Serve(ctx)
+	}()
+
+	respWriter := newWSRespWriter()
+	readPipe, writePipe := io.Pipe()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, "http://localhost:8080/ws", readPipe)
+	require.NoError(t, err)
+	req.Header.Set(internalUpgradeHeader, websocketUpgrade)
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.ServeHTTP(respWriter, req)
+	}()
+
+	data := []byte("test websocket")
+	err = wsutil.WriteClientText(writePipe, data)
+	require.NoError(t, err)
+
+	respBody, err := wsutil.ReadServerText(respWriter.RespBody())
+	require.NoError(t, err)
+	require.Equal(t, data, respBody, fmt.Sprintf("Expect %s, got %s", string(data), string(respBody)))
+
+	cancel()
+	resp := respWriter.Result()
+	// http2RespWriter should rewrite status 101 to 200
+	require.Equal(t, http.StatusOK, resp.StatusCode)
+	require.Equal(t, responseMetaHeaderOrigin, resp.Header.Get(ResponseMetaHeaderField))
+
+	wg.Wait()
+}
+
+func TestServeControlStream(t *testing.T) {
+	http2Conn, edgeConn := newTestHTTP2Connection()
+
+	rpcClientFactory := mockRPCClientFactory{
+		registered:   make(chan struct{}),
+		unregistered: make(chan struct{}),
+	}
+	http2Conn.newRPCClientFunc = rpcClientFactory.newMockRPCClient
+
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.Serve(ctx)
+	}()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, "http://localhost:8080/", nil)
+	require.NoError(t, err)
+	req.Header.Set(internalUpgradeHeader, controlStreamUpgrade)
+
+	edgeHTTP2Conn, err := testTransport.NewClientConn(edgeConn)
+	require.NoError(t, err)
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		edgeHTTP2Conn.RoundTrip(req)
+	}()
+
+	<-rpcClientFactory.registered
+	cancel()
+	<-rpcClientFactory.unregistered
+	assert.False(t, http2Conn.stoppedGracefully)
+
+	wg.Wait()
+}
+
+func TestFailRegistration(t *testing.T) {
+	http2Conn, edgeConn := newTestHTTP2Connection()
+
+	rpcClientFactory := mockRPCClientFactory{
+		shouldFail:   errDuplicationConnection,
+		registered:   make(chan struct{}),
+		unregistered: make(chan struct{}),
+	}
+	http2Conn.newRPCClientFunc = rpcClientFactory.newMockRPCClient
+
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.Serve(ctx)
+	}()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, "http://localhost:8080/", nil)
+	require.NoError(t, err)
+	req.Header.Set(internalUpgradeHeader, controlStreamUpgrade)
+
+	edgeHTTP2Conn, err := testTransport.NewClientConn(edgeConn)
+	require.NoError(t, err)
+	resp, err := edgeHTTP2Conn.RoundTrip(req)
+	require.NoError(t, err)
+	require.Equal(t, http.StatusBadGateway, resp.StatusCode)
+
+	assert.NotNil(t, http2Conn.controlStreamErr)
+	cancel()
+	wg.Wait()
+}
+
+func TestGracefulShutdownHTTP2(t *testing.T) {
+	http2Conn, edgeConn := newTestHTTP2Connection()
+
+	rpcClientFactory := mockRPCClientFactory{
+		registered:   make(chan struct{}),
+		unregistered: make(chan struct{}),
+	}
+	events := &eventCollectorSink{}
+	http2Conn.newRPCClientFunc = rpcClientFactory.newMockRPCClient
+	http2Conn.observer.RegisterSink(events)
+	shutdownC := make(chan struct{})
+	http2Conn.gracefulShutdownC = shutdownC
+
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.Serve(ctx)
+	}()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, "http://localhost:8080/", nil)
+	require.NoError(t, err)
+	req.Header.Set(internalUpgradeHeader, controlStreamUpgrade)
+
+	edgeHTTP2Conn, err := testTransport.NewClientConn(edgeConn)
+	require.NoError(t, err)
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		_, _ = edgeHTTP2Conn.RoundTrip(req)
+	}()
+
+	select {
+	case <-rpcClientFactory.registered:
+		break //ok
+	case <-time.Tick(time.Second):
+		t.Fatal("timeout out waiting for registration")
+	}
+
+	// signal graceful shutdown
+	close(shutdownC)
+
+	select {
+	case <-rpcClientFactory.unregistered:
+		break //ok
+	case <-time.Tick(time.Second):
+		t.Fatal("timeout out waiting for unregistered signal")
+	}
+	assert.True(t, http2Conn.stoppedGracefully)
+
+	cancel()
+	wg.Wait()
+
+	events.assertSawEvent(t, Event{
+		Index:     http2Conn.connIndex,
+		EventType: Unregistering,
+	})
+}
+
+func benchmarkServeHTTP(b *testing.B, test testRequest) {
+	http2Conn, edgeConn := newTestHTTP2Connection()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	var wg sync.WaitGroup
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		http2Conn.Serve(ctx)
+	}()
+
+	endpoint := fmt.Sprintf("http://localhost:8080/%s", test.endpoint)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, endpoint, nil)
+	require.NoError(b, err)
+
+	edgeHTTP2Conn, err := testTransport.NewClientConn(edgeConn)
+	require.NoError(b, err)
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		b.StartTimer()
+		resp, err := edgeHTTP2Conn.RoundTrip(req)
+		b.StopTimer()
+		require.NoError(b, err)
+		require.Equal(b, test.expectedStatus, resp.StatusCode)
+		if test.expectedBody != nil {
+			respBody, err := ioutil.ReadAll(resp.Body)
+			require.NoError(b, err)
+			require.Equal(b, test.expectedBody, respBody)
+		}
+		resp.Body.Close()
+	}
+
+	cancel()
+	wg.Wait()
+}
+
+func BenchmarkServeHTTPSimple(b *testing.B) {
+	test := testRequest{
+		name:           "ok",
+		endpoint:       "ok",
+		expectedStatus: http.StatusOK,
+		expectedBody:   []byte(http.StatusText(http.StatusOK)),
+	}
+
+	benchmarkServeHTTP(b, test)
+}
+
+func BenchmarkServeHTTPLargeFile(b *testing.B) {
+	test := testRequest{
+		name:           "large_file",
+		endpoint:       "large_file",
+		expectedStatus: http.StatusOK,
+		expectedBody:   testLargeResp,
+	}
+
+	benchmarkServeHTTP(b, test)
+}

connection/json.go

@@ -0,0 +1,7 @@
+package connection
+
+import (
+	jsoniter "github.com/json-iterator/go"
+)
+
+var json = jsoniter.ConfigFastest

connection/metrics.go

@@ -0,0 +1,417 @@
+package connection
+
+import (
+	"sync"
+	"time"
+
+	"github.com/cloudflare/cloudflared/h2mux"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	MetricsNamespace = "cloudflared"
+	TunnelSubsystem  = "tunnel"
+	muxerSubsystem   = "muxer"
+)
+
+type muxerMetrics struct {
+	rtt              *prometheus.GaugeVec
+	rttMin           *prometheus.GaugeVec
+	rttMax           *prometheus.GaugeVec
+	receiveWindowAve *prometheus.GaugeVec
+	sendWindowAve    *prometheus.GaugeVec
+	receiveWindowMin *prometheus.GaugeVec
+	receiveWindowMax *prometheus.GaugeVec
+	sendWindowMin    *prometheus.GaugeVec
+	sendWindowMax    *prometheus.GaugeVec
+	inBoundRateCurr  *prometheus.GaugeVec
+	inBoundRateMin   *prometheus.GaugeVec
+	inBoundRateMax   *prometheus.GaugeVec
+	outBoundRateCurr *prometheus.GaugeVec
+	outBoundRateMin  *prometheus.GaugeVec
+	outBoundRateMax  *prometheus.GaugeVec
+	compBytesBefore  *prometheus.GaugeVec
+	compBytesAfter   *prometheus.GaugeVec
+	compRateAve      *prometheus.GaugeVec
+}
+
+type tunnelMetrics struct {
+	timerRetries    prometheus.Gauge
+	serverLocations *prometheus.GaugeVec
+	// locationLock is a mutex for oldServerLocations
+	locationLock sync.Mutex
+	// oldServerLocations stores the last server the tunnel was connected to
+	oldServerLocations map[string]string
+
+	regSuccess *prometheus.CounterVec
+	regFail    *prometheus.CounterVec
+	rpcFail    *prometheus.CounterVec
+
+	muxerMetrics        *muxerMetrics
+	tunnelsHA           tunnelsForHA
+	userHostnamesCounts *prometheus.CounterVec
+}
+
+func newMuxerMetrics() *muxerMetrics {
+	rtt := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "rtt",
+			Help:      "Round-trip time in millisecond",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(rtt)
+
+	rttMin := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "rtt_min",
+			Help:      "Shortest round-trip time in millisecond",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(rttMin)
+
+	rttMax := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "rtt_max",
+			Help:      "Longest round-trip time in millisecond",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(rttMax)
+
+	receiveWindowAve := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "receive_window_ave",
+			Help:      "Average receive window size in bytes",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(receiveWindowAve)
+
+	sendWindowAve := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "send_window_ave",
+			Help:      "Average send window size in bytes",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(sendWindowAve)
+
+	receiveWindowMin := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "receive_window_min",
+			Help:      "Smallest receive window size in bytes",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(receiveWindowMin)
+
+	receiveWindowMax := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "receive_window_max",
+			Help:      "Largest receive window size in bytes",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(receiveWindowMax)
+
+	sendWindowMin := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "send_window_min",
+			Help:      "Smallest send window size in bytes",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(sendWindowMin)
+
+	sendWindowMax := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "send_window_max",
+			Help:      "Largest send window size in bytes",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(sendWindowMax)
+
+	inBoundRateCurr := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "inbound_bytes_per_sec_curr",
+			Help:      "Current inbounding bytes per second, 0 if there is no incoming connection",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(inBoundRateCurr)
+
+	inBoundRateMin := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "inbound_bytes_per_sec_min",
+			Help:      "Minimum non-zero inbounding bytes per second",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(inBoundRateMin)
+
+	inBoundRateMax := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "inbound_bytes_per_sec_max",
+			Help:      "Maximum inbounding bytes per second",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(inBoundRateMax)
+
+	outBoundRateCurr := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "outbound_bytes_per_sec_curr",
+			Help:      "Current outbounding bytes per second, 0 if there is no outgoing traffic",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(outBoundRateCurr)
+
+	outBoundRateMin := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "outbound_bytes_per_sec_min",
+			Help:      "Minimum non-zero outbounding bytes per second",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(outBoundRateMin)
+
+	outBoundRateMax := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "outbound_bytes_per_sec_max",
+			Help:      "Maximum outbounding bytes per second",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(outBoundRateMax)
+
+	compBytesBefore := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "comp_bytes_before",
+			Help:      "Bytes sent via cross-stream compression, pre compression",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(compBytesBefore)
+
+	compBytesAfter := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "comp_bytes_after",
+			Help:      "Bytes sent via cross-stream compression, post compression",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(compBytesAfter)
+
+	compRateAve := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: muxerSubsystem,
+			Name:      "comp_rate_ave",
+			Help:      "Average outbound cross-stream compression ratio",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(compRateAve)
+
+	return &muxerMetrics{
+		rtt:              rtt,
+		rttMin:           rttMin,
+		rttMax:           rttMax,
+		receiveWindowAve: receiveWindowAve,
+		sendWindowAve:    sendWindowAve,
+		receiveWindowMin: receiveWindowMin,
+		receiveWindowMax: receiveWindowMax,
+		sendWindowMin:    sendWindowMin,
+		sendWindowMax:    sendWindowMax,
+		inBoundRateCurr:  inBoundRateCurr,
+		inBoundRateMin:   inBoundRateMin,
+		inBoundRateMax:   inBoundRateMax,
+		outBoundRateCurr: outBoundRateCurr,
+		outBoundRateMin:  outBoundRateMin,
+		outBoundRateMax:  outBoundRateMax,
+		compBytesBefore:  compBytesBefore,
+		compBytesAfter:   compBytesAfter,
+		compRateAve:      compRateAve,
+	}
+}
+
+func (m *muxerMetrics) update(connectionID string, metrics *h2mux.MuxerMetrics) {
+	m.rtt.WithLabelValues(connectionID).Set(convertRTTMilliSec(metrics.RTT))
+	m.rttMin.WithLabelValues(connectionID).Set(convertRTTMilliSec(metrics.RTTMin))
+	m.rttMax.WithLabelValues(connectionID).Set(convertRTTMilliSec(metrics.RTTMax))
+	m.receiveWindowAve.WithLabelValues(connectionID).Set(metrics.ReceiveWindowAve)
+	m.sendWindowAve.WithLabelValues(connectionID).Set(metrics.SendWindowAve)
+	m.receiveWindowMin.WithLabelValues(connectionID).Set(float64(metrics.ReceiveWindowMin))
+	m.receiveWindowMax.WithLabelValues(connectionID).Set(float64(metrics.ReceiveWindowMax))
+	m.sendWindowMin.WithLabelValues(connectionID).Set(float64(metrics.SendWindowMin))
+	m.sendWindowMax.WithLabelValues(connectionID).Set(float64(metrics.SendWindowMax))
+	m.inBoundRateCurr.WithLabelValues(connectionID).Set(float64(metrics.InBoundRateCurr))
+	m.inBoundRateMin.WithLabelValues(connectionID).Set(float64(metrics.InBoundRateMin))
+	m.inBoundRateMax.WithLabelValues(connectionID).Set(float64(metrics.InBoundRateMax))
+	m.outBoundRateCurr.WithLabelValues(connectionID).Set(float64(metrics.OutBoundRateCurr))
+	m.outBoundRateMin.WithLabelValues(connectionID).Set(float64(metrics.OutBoundRateMin))
+	m.outBoundRateMax.WithLabelValues(connectionID).Set(float64(metrics.OutBoundRateMax))
+	m.compBytesBefore.WithLabelValues(connectionID).Set(float64(metrics.CompBytesBefore.Value()))
+	m.compBytesAfter.WithLabelValues(connectionID).Set(float64(metrics.CompBytesAfter.Value()))
+	m.compRateAve.WithLabelValues(connectionID).Set(float64(metrics.CompRateAve()))
+}
+
+func convertRTTMilliSec(t time.Duration) float64 {
+	return float64(t / time.Millisecond)
+}
+
+// Metrics that can be collected without asking the edge
+func initTunnelMetrics() *tunnelMetrics {
+	maxConcurrentRequestsPerTunnel := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "max_concurrent_requests_per_tunnel",
+			Help:      "Largest number of concurrent requests proxied through each tunnel so far",
+		},
+		[]string{"connection_id"},
+	)
+	prometheus.MustRegister(maxConcurrentRequestsPerTunnel)
+
+	timerRetries := prometheus.NewGauge(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "timer_retries",
+			Help:      "Unacknowledged heart beats count",
+		})
+	prometheus.MustRegister(timerRetries)
+
+	serverLocations := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "server_locations",
+			Help:      "Where each tunnel is connected to. 1 means current location, 0 means previous locations.",
+		},
+		[]string{"connection_id", "location"},
+	)
+	prometheus.MustRegister(serverLocations)
+
+	rpcFail := prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "tunnel_rpc_fail",
+			Help:      "Count of RPC connection errors by type",
+		},
+		[]string{"error", "rpcName"},
+	)
+	prometheus.MustRegister(rpcFail)
+
+	registerFail := prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "tunnel_register_fail",
+			Help:      "Count of tunnel registration errors by type",
+		},
+		[]string{"error", "rpcName"},
+	)
+	prometheus.MustRegister(registerFail)
+
+	userHostnamesCounts := prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "user_hostnames_counts",
+			Help:      "Which user hostnames cloudflared is serving",
+		},
+		[]string{"userHostname"},
+	)
+	prometheus.MustRegister(userHostnamesCounts)
+
+	registerSuccess := prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: MetricsNamespace,
+			Subsystem: TunnelSubsystem,
+			Name:      "tunnel_register_success",
+			Help:      "Count of successful tunnel registrations",
+		},
+		[]string{"rpcName"},
+	)
+	prometheus.MustRegister(registerSuccess)
+
+	return &tunnelMetrics{
+		timerRetries:        timerRetries,
+		serverLocations:     serverLocations,
+		oldServerLocations:  make(map[string]string),
+		muxerMetrics:        newMuxerMetrics(),
+		tunnelsHA:           newTunnelsForHA(),
+		regSuccess:          registerSuccess,
+		regFail:             registerFail,
+		rpcFail:             rpcFail,
+		userHostnamesCounts: userHostnamesCounts,
+	}
+}
+
+func (t *tunnelMetrics) updateMuxerMetrics(connectionID string, metrics *h2mux.MuxerMetrics) {
+	t.muxerMetrics.update(connectionID, metrics)
+}
+
+func (t *tunnelMetrics) registerServerLocation(connectionID, loc string) {
+	t.locationLock.Lock()
+	defer t.locationLock.Unlock()
+	if oldLoc, ok := t.oldServerLocations[connectionID]; ok && oldLoc == loc {
+		return
+	} else if ok {
+		t.serverLocations.WithLabelValues(connectionID, oldLoc).Dec()
+	}
+	t.serverLocations.WithLabelValues(connectionID, loc).Inc()
+	t.oldServerLocations[connectionID] = loc
+}
+
+var tunnelMetricsInternal struct {
+	sync.Once
+	metrics *tunnelMetrics
+}
+
+func newTunnelMetrics() *tunnelMetrics {
+	tunnelMetricsInternal.Do(func() {
+		tunnelMetricsInternal.metrics = initTunnelMetrics()
+	})
+	return tunnelMetricsInternal.metrics
+}

connection/observer.go

@@ -0,0 +1,155 @@
+package connection
+
+import (
+	"fmt"
+	"net/url"
+	"strings"
+
+	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
+	"github.com/rs/zerolog"
+)
+
+const (
+	LogFieldLocation          = "location"
+	observerChannelBufferSize = 16
+)
+
+type Observer struct {
+	log             *zerolog.Logger
+	logTransport    *zerolog.Logger
+	metrics         *tunnelMetrics
+	tunnelEventChan chan Event
+	uiEnabled       bool
+	addSinkChan     chan EventSink
+}
+
+type EventSink interface {
+	OnTunnelEvent(event Event)
+}
+
+func NewObserver(log, logTransport *zerolog.Logger, uiEnabled bool) *Observer {
+	o := &Observer{
+		log:             log,
+		logTransport:    logTransport,
+		metrics:         newTunnelMetrics(),
+		uiEnabled:       uiEnabled,
+		tunnelEventChan: make(chan Event, observerChannelBufferSize),
+		addSinkChan:     make(chan EventSink, observerChannelBufferSize),
+	}
+	go o.dispatchEvents()
+	return o
+}
+
+func (o *Observer) RegisterSink(sink EventSink) {
+	o.addSinkChan <- sink
+}
+
+func (o *Observer) logServerInfo(connIndex uint8, location, msg string) {
+	o.sendEvent(Event{Index: connIndex, EventType: Connected, Location: location})
+	o.log.Info().
+		Uint8(LogFieldConnIndex, connIndex).
+		Str(LogFieldLocation, location).
+		Msg(msg)
+	o.metrics.registerServerLocation(uint8ToString(connIndex), location)
+}
+
+func (o *Observer) logTrialHostname(registration *tunnelpogs.TunnelRegistration) error {
+	// Print out the user's trial zone URL in a nice box (if they requested and got one and UI flag is not set)
+	if !o.uiEnabled {
+		if registrationURL, err := url.Parse(registration.Url); err == nil {
+			for _, line := range asciiBox(trialZoneMsg(registrationURL.String()), 2) {
+				o.log.Info().Msg(line)
+			}
+		} else {
+			o.log.Error().Msg("Failed to connect tunnel, please try again.")
+			return fmt.Errorf("empty URL in response from Cloudflare edge")
+		}
+	}
+	return nil
+}
+
+// Print out the given lines in a nice ASCII box.
+func asciiBox(lines []string, padding int) (box []string) {
+	maxLen := maxLen(lines)
+	spacer := strings.Repeat(" ", padding)
+
+	border := "+" + strings.Repeat("-", maxLen+(padding*2)) + "+"
+
+	box = append(box, border)
+	for _, line := range lines {
+		box = append(box, "|"+spacer+line+strings.Repeat(" ", maxLen-len(line))+spacer+"|")
+	}
+	box = append(box, border)
+	return
+}
+
+func maxLen(lines []string) int {
+	max := 0
+	for _, line := range lines {
+		if len(line) > max {
+			max = len(line)
+		}
+	}
+	return max
+}
+
+func trialZoneMsg(url string) []string {
+	return []string{
+		"Your free tunnel has started! Visit it:",
+		"  " + url,
+	}
+}
+
+func (o *Observer) sendRegisteringEvent(connIndex uint8) {
+	o.sendEvent(Event{Index: connIndex, EventType: RegisteringTunnel})
+}
+
+func (o *Observer) sendConnectedEvent(connIndex uint8, location string) {
+	o.sendEvent(Event{Index: connIndex, EventType: Connected, Location: location})
+}
+
+func (o *Observer) sendURL(url string) {
+	o.sendEvent(Event{EventType: SetURL, URL: url})
+}
+
+func (o *Observer) SendReconnect(connIndex uint8) {
+	o.sendEvent(Event{Index: connIndex, EventType: Reconnecting})
+}
+
+func (o *Observer) sendUnregisteringEvent(connIndex uint8) {
+	o.sendEvent(Event{Index: connIndex, EventType: Unregistering})
+}
+
+func (o *Observer) SendDisconnect(connIndex uint8) {
+	o.sendEvent(Event{Index: connIndex, EventType: Disconnected})
+}
+
+func (o *Observer) sendEvent(e Event) {
+	select {
+	case o.tunnelEventChan <- e:
+		break
+	default:
+		o.log.Warn().Msg("observer channel buffer is full")
+	}
+}
+
+func (o *Observer) dispatchEvents() {
+	var sinks []EventSink
+	for {
+		select {
+		case sink := <-o.addSinkChan:
+			sinks = append(sinks, sink)
+		case evt := <-o.tunnelEventChan:
+			for _, sink := range sinks {
+				sink.OnTunnelEvent(evt)
+			}
+		}
+	}
+}
+
+type EventSinkFunc func(event Event)
+
+func (f EventSinkFunc) OnTunnelEvent(event Event) {
+	f(event)
+}

connection/observer_test.go

@@ -0,0 +1,86 @@
+package connection
+
+import (
+	"strconv"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRegisterServerLocation(t *testing.T) {
+	m := newTunnelMetrics()
+	tunnels := 20
+	var wg sync.WaitGroup
+	wg.Add(tunnels)
+	for i := 0; i < tunnels; i++ {
+		go func(i int) {
+			id := strconv.Itoa(i)
+			m.registerServerLocation(id, "LHR")
+			wg.Done()
+		}(i)
+	}
+	wg.Wait()
+	for i := 0; i < tunnels; i++ {
+		id := strconv.Itoa(i)
+		assert.Equal(t, "LHR", m.oldServerLocations[id])
+	}
+
+	wg.Add(tunnels)
+	for i := 0; i < tunnels; i++ {
+		go func(i int) {
+			id := strconv.Itoa(i)
+			m.registerServerLocation(id, "AUS")
+			wg.Done()
+		}(i)
+	}
+	wg.Wait()
+	for i := 0; i < tunnels; i++ {
+		id := strconv.Itoa(i)
+		assert.Equal(t, "AUS", m.oldServerLocations[id])
+	}
+
+}
+
+func TestObserverEventsDontBlock(t *testing.T) {
+	observer := NewObserver(&log, &log, false)
+	var mu sync.Mutex
+	observer.RegisterSink(EventSinkFunc(func(_ Event) {
+		// callback will block if lock is already held
+		mu.Lock()
+		mu.Unlock()
+	}))
+
+	timeout := time.AfterFunc(5*time.Second, func() {
+		mu.Unlock() // release the callback on timer expiration
+		t.Fatal("observer is blocked")
+	})
+
+	mu.Lock() // block the callback
+	for i := 0; i < 2*observerChannelBufferSize; i++ {
+		observer.sendRegisteringEvent(0)
+	}
+	if pending := timeout.Stop(); pending {
+		// release the callback if timer hasn't expired yet
+		mu.Unlock()
+	}
+}
+
+
+type eventCollectorSink struct {
+	observedEvents []Event
+	mu sync.Mutex
+}
+
+func (s *eventCollectorSink) OnTunnelEvent(event Event) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.observedEvents = append(s.observedEvents, event)
+}
+
+func (s *eventCollectorSink) assertSawEvent(t *testing.T, event Event) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	assert.Contains(t, s.observedEvents, event)
+}

connection/protocol.go

@@ -0,0 +1,198 @@
+package connection
+
+import (
+	"fmt"
+	"hash/fnv"
+	"sync"
+	"time"
+
+	"github.com/rs/zerolog"
+)
+
+const (
+	AvailableProtocolFlagMessage = "Available protocols: http2 - Go's implementation, h2mux - Cloudflare's implementation of HTTP/2, and auto - automatically select between http2 and h2mux"
+	// edgeH2muxTLSServerName is the server name to establish h2mux connection with edge
+	edgeH2muxTLSServerName = "cftunnel.com"
+	// edgeH2TLSServerName is the server name to establish http2 connection with edge
+	edgeH2TLSServerName = "h2.cftunnel.com"
+	// threshold to switch back to h2mux when the user intentionally pick --protocol http2
+	explicitHTTP2FallbackThreshold = -1
+	autoSelectFlag                 = "auto"
+)
+
+var (
+	ProtocolList = []Protocol{H2mux, HTTP2}
+)
+
+type Protocol int64
+
+const (
+	H2mux Protocol = iota
+	HTTP2
+)
+
+func (p Protocol) ServerName() string {
+	switch p {
+	case H2mux:
+		return edgeH2muxTLSServerName
+	case HTTP2:
+		return edgeH2TLSServerName
+	default:
+		return ""
+	}
+}
+
+// Fallback returns the fallback protocol and whether the protocol has a fallback
+func (p Protocol) fallback() (Protocol, bool) {
+	switch p {
+	case H2mux:
+		return 0, false
+	case HTTP2:
+		return H2mux, true
+	default:
+		return 0, false
+	}
+}
+
+func (p Protocol) String() string {
+	switch p {
+	case H2mux:
+		return "h2mux"
+	case HTTP2:
+		return "http2"
+	default:
+		return fmt.Sprintf("unknown protocol")
+	}
+}
+
+type ProtocolSelector interface {
+	Current() Protocol
+	Fallback() (Protocol, bool)
+}
+
+type staticProtocolSelector struct {
+	current Protocol
+}
+
+func (s *staticProtocolSelector) Current() Protocol {
+	return s.current
+}
+
+func (s *staticProtocolSelector) Fallback() (Protocol, bool) {
+	return 0, false
+}
+
+type autoProtocolSelector struct {
+	lock           sync.RWMutex
+	current        Protocol
+	switchThrehold int32
+	fetchFunc      PercentageFetcher
+	refreshAfter   time.Time
+	ttl            time.Duration
+	log            *zerolog.Logger
+}
+
+func newAutoProtocolSelector(
+	current Protocol,
+	switchThrehold int32,
+	fetchFunc PercentageFetcher,
+	ttl time.Duration,
+	log *zerolog.Logger,
+) *autoProtocolSelector {
+	return &autoProtocolSelector{
+		current:        current,
+		switchThrehold: switchThrehold,
+		fetchFunc:      fetchFunc,
+		refreshAfter:   time.Now().Add(ttl),
+		ttl:            ttl,
+		log:            log,
+	}
+}
+
+func (s *autoProtocolSelector) Current() Protocol {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+	if time.Now().Before(s.refreshAfter) {
+		return s.current
+	}
+
+	percentage, err := s.fetchFunc()
+	if err != nil {
+		s.log.Err(err).Msg("Failed to refresh protocol")
+		return s.current
+	}
+
+	if s.switchThrehold < percentage {
+		s.current = HTTP2
+	} else {
+		s.current = H2mux
+	}
+	s.refreshAfter = time.Now().Add(s.ttl)
+	return s.current
+}
+
+func (s *autoProtocolSelector) Fallback() (Protocol, bool) {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+	return s.current.fallback()
+}
+
+type PercentageFetcher func() (int32, error)
+
+func NewProtocolSelector(
+	protocolFlag string,
+	warpRoutingEnabled bool,
+	namedTunnel *NamedTunnelConfig,
+	fetchFunc PercentageFetcher,
+	ttl time.Duration,
+	log *zerolog.Logger,
+) (ProtocolSelector, error) {
+	// Classic tunnel is only supported with h2mux
+	if namedTunnel == nil {
+		return &staticProtocolSelector{
+			current: H2mux,
+		}, nil
+	}
+
+	// warp routing can only be served over http2 connections
+	if warpRoutingEnabled {
+		if protocolFlag == H2mux.String() {
+			log.Warn().Msg("Warp routing is only supported by http2 protocol. Upgrading protocol to http2")
+		}
+		return &staticProtocolSelector{
+			current: HTTP2,
+		}, nil
+	}
+
+	if protocolFlag == H2mux.String() {
+		return &staticProtocolSelector{
+			current: H2mux,
+		}, nil
+	}
+
+	http2Percentage, err := fetchFunc()
+	if err != nil {
+		return nil, err
+	}
+	if protocolFlag == HTTP2.String() {
+		if http2Percentage < 0 {
+			return newAutoProtocolSelector(H2mux, explicitHTTP2FallbackThreshold, fetchFunc, ttl, log), nil
+		}
+		return newAutoProtocolSelector(HTTP2, explicitHTTP2FallbackThreshold, fetchFunc, ttl, log), nil
+	}
+
+	if protocolFlag != autoSelectFlag {
+		return nil, fmt.Errorf("Unknown protocol %s, %s", protocolFlag, AvailableProtocolFlagMessage)
+	}
+	threshold := switchThreshold(namedTunnel.Credentials.AccountTag)
+	if threshold < http2Percentage {
+		return newAutoProtocolSelector(HTTP2, threshold, fetchFunc, ttl, log), nil
+	}
+	return newAutoProtocolSelector(H2mux, threshold, fetchFunc, ttl, log), nil
+}
+
+func switchThreshold(accountTag string) int32 {
+	h := fnv.New32a()
+	_, _ = h.Write([]byte(accountTag))
+	return int32(h.Sum32() % 100)
+}

connection/protocol_test.go

@@ -0,0 +1,247 @@
+package connection
+
+import (
+	"fmt"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	testNoTTL            = 0
+	noWarpRoutingEnabled = false
+)
+
+var (
+	testNamedTunnelConfig = &NamedTunnelConfig{
+		Credentials: Credentials{
+			AccountTag: "testAccountTag",
+		},
+	}
+)
+
+func mockFetcher(percentage int32) PercentageFetcher {
+	return func() (int32, error) {
+		return percentage, nil
+	}
+}
+
+func mockFetcherWithError() PercentageFetcher {
+	return func() (int32, error) {
+		return 0, fmt.Errorf("failed to fetch precentage")
+	}
+}
+
+type dynamicMockFetcher struct {
+	percentage int32
+	err        error
+}
+
+func (dmf *dynamicMockFetcher) fetch() PercentageFetcher {
+	return func() (int32, error) {
+		if dmf.err != nil {
+			return 0, dmf.err
+		}
+		return dmf.percentage, nil
+	}
+}
+
+func TestNewProtocolSelector(t *testing.T) {
+	tests := []struct {
+		name               string
+		protocol           string
+		expectedProtocol   Protocol
+		hasFallback        bool
+		expectedFallback   Protocol
+		warpRoutingEnabled bool
+		namedTunnelConfig  *NamedTunnelConfig
+		fetchFunc          PercentageFetcher
+		wantErr            bool
+	}{
+		{
+			name:              "classic tunnel",
+			protocol:          "h2mux",
+			expectedProtocol:  H2mux,
+			namedTunnelConfig: nil,
+		},
+		{
+			name:              "named tunnel over h2mux",
+			protocol:          "h2mux",
+			expectedProtocol:  H2mux,
+			namedTunnelConfig: testNamedTunnelConfig,
+		},
+		{
+			name:              "named tunnel over http2",
+			protocol:          "http2",
+			expectedProtocol:  HTTP2,
+			hasFallback:       true,
+			expectedFallback:  H2mux,
+			fetchFunc:         mockFetcher(0),
+			namedTunnelConfig: testNamedTunnelConfig,
+		},
+		{
+			name:              "named tunnel http2 disabled",
+			protocol:          "http2",
+			expectedProtocol:  H2mux,
+			fetchFunc:         mockFetcher(-1),
+			namedTunnelConfig: testNamedTunnelConfig,
+		},
+		{
+			name:              "named tunnel auto all http2 disabled",
+			protocol:          "auto",
+			expectedProtocol:  H2mux,
+			fetchFunc:         mockFetcher(-1),
+			namedTunnelConfig: testNamedTunnelConfig,
+		},
+		{
+			name:              "named tunnel auto to h2mux",
+			protocol:          "auto",
+			expectedProtocol:  H2mux,
+			fetchFunc:         mockFetcher(0),
+			namedTunnelConfig: testNamedTunnelConfig,
+		},
+		{
+			name:              "named tunnel auto to http2",
+			protocol:          "auto",
+			expectedProtocol:  HTTP2,
+			hasFallback:       true,
+			expectedFallback:  H2mux,
+			fetchFunc:         mockFetcher(100),
+			namedTunnelConfig: testNamedTunnelConfig,
+		},
+		{
+			name:               "warp routing requesting h2mux",
+			protocol:           "h2mux",
+			expectedProtocol:   HTTP2,
+			hasFallback:        false,
+			expectedFallback:   H2mux,
+			fetchFunc:          mockFetcher(100),
+			warpRoutingEnabled: true,
+			namedTunnelConfig:  testNamedTunnelConfig,
+		},
+		{
+			name:               "warp routing http2",
+			protocol:           "http2",
+			expectedProtocol:   HTTP2,
+			hasFallback:        false,
+			expectedFallback:   H2mux,
+			fetchFunc:          mockFetcher(100),
+			warpRoutingEnabled: true,
+			namedTunnelConfig:  testNamedTunnelConfig,
+		},
+		{
+			name:               "warp routing auto",
+			protocol:           "auto",
+			expectedProtocol:   HTTP2,
+			hasFallback:        false,
+			expectedFallback:   H2mux,
+			fetchFunc:          mockFetcher(100),
+			warpRoutingEnabled: true,
+			namedTunnelConfig:  testNamedTunnelConfig,
+		},
+		{
+			// None named tunnel can only use h2mux, so specifying an unknown protocol is not an error
+			name:             "classic tunnel unknown protocol",
+			protocol:         "unknown",
+			expectedProtocol: H2mux,
+		},
+		{
+			name:              "named tunnel unknown protocol",
+			protocol:          "unknown",
+			fetchFunc:         mockFetcher(100),
+			namedTunnelConfig: testNamedTunnelConfig,
+			wantErr:           true,
+		},
+		{
+			name:              "named tunnel fetch error",
+			protocol:          "unknown",
+			fetchFunc:         mockFetcherWithError(),
+			namedTunnelConfig: testNamedTunnelConfig,
+			wantErr:           true,
+		},
+	}
+
+	for _, test := range tests {
+		selector, err := NewProtocolSelector(test.protocol, test.warpRoutingEnabled, test.namedTunnelConfig, test.fetchFunc, testNoTTL, &log)
+		if test.wantErr {
+			assert.Error(t, err, fmt.Sprintf("test %s failed", test.name))
+		} else {
+			assert.NoError(t, err, fmt.Sprintf("test %s failed", test.name))
+			assert.Equal(t, test.expectedProtocol, selector.Current(), fmt.Sprintf("test %s failed", test.name))
+			fallback, ok := selector.Fallback()
+			assert.Equal(t, test.hasFallback, ok, fmt.Sprintf("test %s failed", test.name))
+			if test.hasFallback {
+				assert.Equal(t, test.expectedFallback, fallback, fmt.Sprintf("test %s failed", test.name))
+			}
+		}
+	}
+}
+
+func TestAutoProtocolSelectorRefresh(t *testing.T) {
+	fetcher := dynamicMockFetcher{}
+	selector, err := NewProtocolSelector("auto", noWarpRoutingEnabled, testNamedTunnelConfig, fetcher.fetch(), testNoTTL, &log)
+	assert.NoError(t, err)
+	assert.Equal(t, H2mux, selector.Current())
+
+	fetcher.percentage = 100
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = 0
+	assert.Equal(t, H2mux, selector.Current())
+
+	fetcher.percentage = 100
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.err = fmt.Errorf("failed to fetch")
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = -1
+	fetcher.err = nil
+	assert.Equal(t, H2mux, selector.Current())
+
+	fetcher.percentage = 0
+	assert.Equal(t, H2mux, selector.Current())
+
+	fetcher.percentage = 100
+	assert.Equal(t, HTTP2, selector.Current())
+}
+
+func TestHTTP2ProtocolSelectorRefresh(t *testing.T) {
+	fetcher := dynamicMockFetcher{}
+	selector, err := NewProtocolSelector("http2", noWarpRoutingEnabled, testNamedTunnelConfig, fetcher.fetch(), testNoTTL, &log)
+	assert.NoError(t, err)
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = 100
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = 0
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.err = fmt.Errorf("failed to fetch")
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = -1
+	fetcher.err = nil
+	assert.Equal(t, H2mux, selector.Current())
+
+	fetcher.percentage = 0
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = 100
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = -1
+	assert.Equal(t, H2mux, selector.Current())
+}
+
+func TestProtocolSelectorRefreshTTL(t *testing.T) {
+	fetcher := dynamicMockFetcher{percentage: 100}
+	selector, err := NewProtocolSelector("auto", noWarpRoutingEnabled, testNamedTunnelConfig, fetcher.fetch(), time.Hour, &log)
+	assert.NoError(t, err)
+	assert.Equal(t, HTTP2, selector.Current())
+
+	fetcher.percentage = 0
+	assert.Equal(t, HTTP2, selector.Current())
+}

connection/rpc.go

@@ -3,47 +3,317 @@ package connection
 import (
 	"context"
 	"fmt"
+	"io"
 	"time"
 
-	rpc "zombiezen.com/go/capnproto2/rpc"
-
-	"github.com/cloudflare/cloudflared/h2mux"
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/tunnelrpc"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
+	"github.com/rs/zerolog"
+	"zombiezen.com/go/capnproto2/rpc"
 )
 
-// NewRPCClient creates and returns a new RPC client, which will communicate
-// using a stream on the given muxer
-func NewRPCClient(
+type tunnelServerClient struct {
+	client    tunnelpogs.TunnelServer_PogsClient
+	transport rpc.Transport
+}
+
+// NewTunnelRPCClient creates and returns a new RPC client, which will communicate using a stream on the given muxer.
+// This method is exported for supervisor to call Authenticate RPC
+func NewTunnelServerClient(
 	ctx context.Context,
-	muxer *h2mux.Muxer,
-	logger logger.Service,
-	openStreamTimeout time.Duration,
-) (client tunnelpogs.TunnelServer_PogsClient, err error) {
-	openStreamCtx, openStreamCancel := context.WithTimeout(ctx, openStreamTimeout)
-	defer openStreamCancel()
-	stream, err := muxer.OpenRPCStream(openStreamCtx)
+	stream io.ReadWriteCloser,
+	log *zerolog.Logger,
+) *tunnelServerClient {
+	transport := tunnelrpc.NewTransportLogger(log, rpc.StreamTransport(stream))
+	conn := rpc.NewConn(
+		transport,
+		tunnelrpc.ConnLog(log),
+	)
+	registrationClient := tunnelpogs.RegistrationServer_PogsClient{Client: conn.Bootstrap(ctx), Conn: conn}
+	return &tunnelServerClient{
+		client:    tunnelpogs.TunnelServer_PogsClient{RegistrationServer_PogsClient: registrationClient, Client: conn.Bootstrap(ctx), Conn: conn},
+		transport: transport,
+	}
+}
+
+func (tsc *tunnelServerClient) Authenticate(ctx context.Context, classicTunnel *ClassicTunnelConfig, registrationOptions *tunnelpogs.RegistrationOptions) (tunnelpogs.AuthOutcome, error) {
+	authResp, err := tsc.client.Authenticate(ctx, classicTunnel.OriginCert, classicTunnel.Hostname, registrationOptions)
+	if err != nil {
+		return nil, err
+	}
+	return authResp.Outcome(), nil
+}
+
+func (tsc *tunnelServerClient) Close() {
+	// Closing the client will also close the connection
+	_ = tsc.client.Close()
+	_ = tsc.transport.Close()
+}
+
+type NamedTunnelRPCClient interface {
+	RegisterConnection(
+		c context.Context,
+		config *NamedTunnelConfig,
+		options *tunnelpogs.ConnectionOptions,
+		connIndex uint8,
+		observer *Observer,
+	) error
+	GracefulShutdown(ctx context.Context, gracePeriod time.Duration)
+	Close()
+}
+
+type registrationServerClient struct {
+	client    tunnelpogs.RegistrationServer_PogsClient
+	transport rpc.Transport
+}
+
+func newRegistrationRPCClient(
+	ctx context.Context,
+	stream io.ReadWriteCloser,
+	log *zerolog.Logger,
+) NamedTunnelRPCClient {
+	transport := tunnelrpc.NewTransportLogger(log, rpc.StreamTransport(stream))
+	conn := rpc.NewConn(
+		transport,
+		tunnelrpc.ConnLog(log),
+	)
+	return &registrationServerClient{
+		client:    tunnelpogs.RegistrationServer_PogsClient{Client: conn.Bootstrap(ctx), Conn: conn},
+		transport: transport,
+	}
+}
+
+func (rsc *registrationServerClient) RegisterConnection(
+	ctx context.Context,
+	config *NamedTunnelConfig,
+	options *tunnelpogs.ConnectionOptions,
+	connIndex uint8,
+	observer *Observer,
+) error {
+	conn, err := rsc.client.RegisterConnection(
+		ctx,
+		config.Credentials.Auth(),
+		config.Credentials.TunnelID,
+		connIndex,
+		options,
+	)
+	if err != nil {
+		if err.Error() == DuplicateConnectionError {
+			observer.metrics.regFail.WithLabelValues("dup_edge_conn", "registerConnection").Inc()
+			return errDuplicationConnection
+		}
+		observer.metrics.regFail.WithLabelValues("server_error", "registerConnection").Inc()
+		return serverRegistrationErrorFromRPC(err)
+	}
+
+	observer.metrics.regSuccess.WithLabelValues("registerConnection").Inc()
+
+	observer.logServerInfo(connIndex, conn.Location, fmt.Sprintf("Connection %s registered", conn.UUID))
+	observer.sendConnectedEvent(connIndex, conn.Location)
+
+	return nil
+}
+
+func (rsc *registrationServerClient) GracefulShutdown(ctx context.Context, gracePeriod time.Duration) {
+	ctx, cancel := context.WithTimeout(ctx, gracePeriod)
+	defer cancel()
+	_ = rsc.client.UnregisterConnection(ctx)
+}
+
+func (rsc *registrationServerClient) Close() {
+	// Closing the client will also close the connection
+	_ = rsc.client.Close()
+	// Closing the transport also closes the stream
+	_ = rsc.transport.Close()
+}
+
+type rpcName string
+
+const (
+	register     rpcName = "register"
+	reconnect    rpcName = "reconnect"
+	unregister   rpcName = "unregister"
+	authenticate rpcName = " authenticate"
+)
+
+func (h *h2muxConnection) registerTunnel(ctx context.Context, credentialSetter CredentialManager, classicTunnel *ClassicTunnelConfig, registrationOptions *tunnelpogs.RegistrationOptions) error {
+	h.observer.sendRegisteringEvent(registrationOptions.ConnectionID)
+
+	stream, err := h.newRPCStream(ctx, register)
+	if err != nil {
+		return err
+	}
+	rpcClient := NewTunnelServerClient(ctx, stream, h.observer.log)
+	defer rpcClient.Close()
+
+	_ = h.logServerInfo(ctx, rpcClient)
+	registration := rpcClient.client.RegisterTunnel(
+		ctx,
+		classicTunnel.OriginCert,
+		classicTunnel.Hostname,
+		registrationOptions,
+	)
+	if registrationErr := registration.DeserializeError(); registrationErr != nil {
+		// RegisterTunnel RPC failure
+		return h.processRegisterTunnelError(registrationErr, register)
+	}
+
+	// Send free tunnel URL to UI
+	h.observer.sendURL(registration.Url)
+	credentialSetter.SetEventDigest(h.connIndex, registration.EventDigest)
+	return h.processRegistrationSuccess(registration, register, credentialSetter, classicTunnel)
+}
+
+type CredentialManager interface {
+	ReconnectToken() ([]byte, error)
+	EventDigest(connID uint8) ([]byte, error)
+	SetEventDigest(connID uint8, digest []byte)
+	ConnDigest(connID uint8) ([]byte, error)
+	SetConnDigest(connID uint8, digest []byte)
+}
+
+func (h *h2muxConnection) processRegistrationSuccess(
+	registration *tunnelpogs.TunnelRegistration,
+	name rpcName,
+	credentialManager CredentialManager, classicTunnel *ClassicTunnelConfig,
+) error {
+	for _, logLine := range registration.LogLines {
+		h.observer.log.Info().Msg(logLine)
+	}
+
+	if registration.TunnelID != "" {
+		h.observer.metrics.tunnelsHA.AddTunnelID(h.connIndex, registration.TunnelID)
+		h.observer.log.Info().Msgf("Each HA connection's tunnel IDs: %v", h.observer.metrics.tunnelsHA.String())
+	}
+
+	// Print out the user's trial zone URL in a nice box (if they requested and got one and UI flag is not set)
+	if classicTunnel.IsTrialZone() {
+		err := h.observer.logTrialHostname(registration)
+		if err != nil {
+			return err
+		}
+	}
+
+	credentialManager.SetConnDigest(h.connIndex, registration.ConnDigest)
+	h.observer.metrics.userHostnamesCounts.WithLabelValues(registration.Url).Inc()
+
+	h.observer.log.Info().Msgf("Route propagating, it may take up to 1 minute for your new route to become functional")
+	h.observer.metrics.regSuccess.WithLabelValues(string(name)).Inc()
+	return nil
+}
+
+func (h *h2muxConnection) processRegisterTunnelError(err tunnelpogs.TunnelRegistrationError, name rpcName) error {
+	if err.Error() == DuplicateConnectionError {
+		h.observer.metrics.regFail.WithLabelValues("dup_edge_conn", string(name)).Inc()
+		return errDuplicationConnection
+	}
+	h.observer.metrics.regFail.WithLabelValues("server_error", string(name)).Inc()
+	return ServerRegisterTunnelError{
+		Cause:     err,
+		Permanent: err.IsPermanent(),
+	}
+}
+
+func (h *h2muxConnection) reconnectTunnel(ctx context.Context, credentialManager CredentialManager, classicTunnel *ClassicTunnelConfig, registrationOptions *tunnelpogs.RegistrationOptions) error {
+	token, err := credentialManager.ReconnectToken()
+	if err != nil {
+		return err
+	}
+	eventDigest, err := credentialManager.EventDigest(h.connIndex)
+	if err != nil {
+		return err
+	}
+	connDigest, err := credentialManager.ConnDigest(h.connIndex)
+	if err != nil {
+		return err
+	}
+
+	h.observer.log.Debug().Msg("initiating RPC stream to reconnect")
+	stream, err := h.newRPCStream(ctx, register)
+	if err != nil {
+		return err
+	}
+	rpcClient := NewTunnelServerClient(ctx, stream, h.observer.log)
+	defer rpcClient.Close()
+
+	_ = h.logServerInfo(ctx, rpcClient)
+	registration := rpcClient.client.ReconnectTunnel(
+		ctx,
+		token,
+		eventDigest,
+		connDigest,
+		classicTunnel.Hostname,
+		registrationOptions,
+	)
+	if registrationErr := registration.DeserializeError(); registrationErr != nil {
+		// ReconnectTunnel RPC failure
+		return h.processRegisterTunnelError(registrationErr, reconnect)
+	}
+	return h.processRegistrationSuccess(registration, reconnect, credentialManager, classicTunnel)
+}
+
+func (h *h2muxConnection) logServerInfo(ctx context.Context, rpcClient *tunnelServerClient) error {
+	// Request server info without blocking tunnel registration; must use capnp library directly.
+	serverInfoPromise := tunnelrpc.TunnelServer{Client: rpcClient.client.Client}.GetServerInfo(ctx, func(tunnelrpc.TunnelServer_getServerInfo_Params) error {
+		return nil
+	})
+	serverInfoMessage, err := serverInfoPromise.Result().Struct()
+	if err != nil {
+		h.observer.log.Err(err).Msg("Failed to retrieve server information")
+		return err
+	}
+	serverInfo, err := tunnelpogs.UnmarshalServerInfo(serverInfoMessage)
+	if err != nil {
+		h.observer.log.Err(err).Msg("Failed to retrieve server information")
+		return err
+	}
+	h.observer.logServerInfo(h.connIndex, serverInfo.LocationName, "Connection established")
+	return nil
+}
+
+func (h *h2muxConnection) registerNamedTunnel(
+	ctx context.Context,
+	namedTunnel *NamedTunnelConfig,
+	connOptions *tunnelpogs.ConnectionOptions,
+) error {
+	stream, err := h.newRPCStream(ctx, register)
+	if err != nil {
+		return err
+	}
+	rpcClient := h.newRPCClientFunc(ctx, stream, h.observer.log)
+	defer rpcClient.Close()
+
+	if err = rpcClient.RegisterConnection(ctx, namedTunnel, connOptions, h.connIndex, h.observer); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (h *h2muxConnection) unregister(isNamedTunnel bool) {
+	h.observer.sendUnregisteringEvent(h.connIndex)
+
+	unregisterCtx, cancel := context.WithTimeout(context.Background(), h.config.GracePeriod)
+	defer cancel()
+
+	stream, err := h.newRPCStream(unregisterCtx, unregister)
 	if err != nil {
 		return
 	}
+	defer stream.Close()
 
-	if !isRPCStreamResponse(stream.Headers) {
-		stream.Close()
-		err = fmt.Errorf("rpc: bad response headers: %v", stream.Headers)
-		return
+	if isNamedTunnel {
+		rpcClient := h.newRPCClientFunc(unregisterCtx, stream, h.observer.log)
+		defer rpcClient.Close()
+
+		rpcClient.GracefulShutdown(unregisterCtx, h.config.GracePeriod)
+	} else {
+		rpcClient := NewTunnelServerClient(unregisterCtx, stream, h.observer.log)
+		defer rpcClient.Close()
+
+		// gracePeriod is encoded in int64 using capnproto
+		_ = rpcClient.client.UnregisterTunnel(unregisterCtx, h.config.GracePeriod.Nanoseconds())
 	}
 
-	conn := rpc.NewConn(
-		tunnelrpc.NewTransportLogger(logger, rpc.StreamTransport(stream)),
-		tunnelrpc.ConnLog(logger),
-	)
-	client = tunnelpogs.TunnelServer_PogsClient{Client: conn.Bootstrap(ctx), Conn: conn}
-	return client, nil
-}
-
-func isRPCStreamResponse(headers []h2mux.Header) bool {
-	return len(headers) == 1 &&
-		headers[0].Name == ":status" &&
-		headers[0].Value == "200"
+	h.observer.log.Info().Uint8(LogFieldConnIndex, h.connIndex).Msg("Unregistered tunnel connection")
 }

connection/tunnelsforha.go

@@ -0,0 +1,50 @@
+package connection
+
+import (
+	"fmt"
+	"sync"
+
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+// tunnelsForHA maps this cloudflared instance's HA connections to the tunnel IDs they serve.
+type tunnelsForHA struct {
+	sync.Mutex
+	metrics *prometheus.GaugeVec
+	entries map[uint8]string
+}
+
+// NewTunnelsForHA initializes the Prometheus metrics etc for a tunnelsForHA.
+func newTunnelsForHA() tunnelsForHA {
+	metrics := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Name: "tunnel_ids",
+			Help: "The ID of all tunnels (and their corresponding HA connection ID) running in this instance of cloudflared.",
+		},
+		[]string{"tunnel_id", "ha_conn_id"},
+	)
+	prometheus.MustRegister(metrics)
+
+	return tunnelsForHA{
+		metrics: metrics,
+		entries: make(map[uint8]string),
+	}
+}
+
+// Track a new tunnel ID, removing the disconnected tunnel (if any) and update metrics.
+func (t *tunnelsForHA) AddTunnelID(haConn uint8, tunnelID string) {
+	t.Lock()
+	defer t.Unlock()
+	haStr := fmt.Sprintf("%v", haConn)
+	if oldTunnelID, ok := t.entries[haConn]; ok {
+		t.metrics.WithLabelValues(oldTunnelID, haStr).Dec()
+	}
+	t.entries[haConn] = tunnelID
+	t.metrics.WithLabelValues(tunnelID, haStr).Inc()
+}
+
+func (t *tunnelsForHA) String() string {
+	t.Lock()
+	defer t.Unlock()
+	return fmt.Sprintf("%v", t.entries)
+}

dbconnect/client.go

@@ -1,145 +0,0 @@
-package dbconnect
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"net/url"
-	"strings"
-	"time"
-	"unicode"
-	"unicode/utf8"
-)
-
-// Client is an interface to talk to any database.
-//
-// Currently, the only implementation is SQLClient, but its structure
-// should be designed to handle a MongoClient or RedisClient in the future.
-type Client interface {
-	Ping(context.Context) error
-	Submit(context.Context, *Command) (interface{}, error)
-}
-
-// NewClient creates a database client based on its URL scheme.
-func NewClient(ctx context.Context, originURL *url.URL) (Client, error) {
-	return NewSQLClient(ctx, originURL)
-}
-
-// Command is a standard, non-vendor format for submitting database commands.
-//
-// When determining the scope of this struct, refer to the following litmus test:
-// Could this (roughly) conform to SQL, Document-based, and Key-value command formats?
-type Command struct {
-	Statement string        `json:"statement"`
-	Arguments Arguments     `json:"arguments,omitempty"`
-	Mode      string        `json:"mode,omitempty"`
-	Isolation string        `json:"isolation,omitempty"`
-	Timeout   time.Duration `json:"timeout,omitempty"`
-}
-
-// Validate enforces the contract of Command: non empty statement (both in length and logic),
-// lowercase mode and isolation, non-zero timeout, and valid Arguments.
-func (cmd *Command) Validate() error {
-	if cmd.Statement == "" {
-		return fmt.Errorf("cannot provide an empty statement")
-	}
-
-	if strings.Map(func(char rune) rune {
-		if char == ';' || unicode.IsSpace(char) {
-			return -1
-		}
-		return char
-	}, cmd.Statement) == "" {
-		return fmt.Errorf("cannot provide a statement with no logic: '%s'", cmd.Statement)
-	}
-
-	cmd.Mode = strings.ToLower(cmd.Mode)
-	cmd.Isolation = strings.ToLower(cmd.Isolation)
-
-	if cmd.Timeout.Nanoseconds() <= 0 {
-		cmd.Timeout = 24 * time.Hour
-	}
-
-	return cmd.Arguments.Validate()
-}
-
-// UnmarshalJSON converts a byte representation of JSON into a Command, which is also validated.
-func (cmd *Command) UnmarshalJSON(data []byte) error {
-	// Alias is required to avoid infinite recursion from the default UnmarshalJSON.
-	type Alias Command
-	alias := &struct {
-		*Alias
-	}{
-		Alias: (*Alias)(cmd),
-	}
-
-	err := json.Unmarshal(data, &alias)
-	if err == nil {
-		err = cmd.Validate()
-	}
-
-	return err
-}
-
-// Arguments is a wrapper for either map-based or array-based Command arguments.
-//
-// Each field is mutually-exclusive and some Client implementations may not
-// support both fields (eg. MySQL does not accept named arguments).
-type Arguments struct {
-	Named      map[string]interface{}
-	Positional []interface{}
-}
-
-// Validate enforces the contract of Arguments: non nil, mutually exclusive, and no empty or reserved keys.
-func (args *Arguments) Validate() error {
-	if args.Named == nil {
-		args.Named = map[string]interface{}{}
-	}
-	if args.Positional == nil {
-		args.Positional = []interface{}{}
-	}
-
-	if len(args.Named) > 0 && len(args.Positional) > 0 {
-		return fmt.Errorf("both named and positional arguments cannot be specified: %+v and %+v", args.Named, args.Positional)
-	}
-
-	for key := range args.Named {
-		if key == "" {
-			return fmt.Errorf("named arguments cannot contain an empty key: %+v", args.Named)
-		}
-		if !utf8.ValidString(key) {
-			return fmt.Errorf("named argument does not conform to UTF-8 encoding: %s", key)
-		}
-		if strings.HasPrefix(key, "_") {
-			return fmt.Errorf("named argument cannot start with a reserved keyword '_': %s", key)
-		}
-		if unicode.IsNumber([]rune(key)[0]) {
-			return fmt.Errorf("named argument cannot start with a number: %s", key)
-		}
-	}
-
-	return nil
-}
-
-// UnmarshalJSON converts a byte representation of JSON into Arguments, which is also validated.
-func (args *Arguments) UnmarshalJSON(data []byte) error {
-	var obj interface{}
-	err := json.Unmarshal(data, &obj)
-	if err != nil {
-		return err
-	}
-
-	named, ok := obj.(map[string]interface{})
-	if ok {
-		args.Named = named
-	} else {
-		positional, ok := obj.([]interface{})
-		if ok {
-			args.Positional = positional
-		} else {
-			return fmt.Errorf("arguments must either be an object {\"0\":\"val\"} or an array [\"val\"]: %s", string(data))
-		}
-	}
-
-	return args.Validate()
-}

dbconnect/client_test.go

@@ -1,183 +0,0 @@
-package dbconnect
-
-import (
-	"encoding/json"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestCommandValidateEmpty(t *testing.T) {
-	stmts := []string{
-		"",
-		";",
-		" \n\t",
-		";\n;\t;",
-	}
-
-	for _, stmt := range stmts {
-		cmd := Command{Statement: stmt}
-
-		assert.Error(t, cmd.Validate(), stmt)
-	}
-}
-
-func TestCommandValidateMode(t *testing.T) {
-	modes := []string{
-		"",
-		"query",
-		"ExEc",
-		"PREPARE",
-	}
-
-	for _, mode := range modes {
-		cmd := Command{Statement: "Ok", Mode: mode}
-
-		assert.NoError(t, cmd.Validate(), mode)
-		assert.Equal(t, strings.ToLower(mode), cmd.Mode)
-	}
-}
-
-func TestCommandValidateIsolation(t *testing.T) {
-	isos := []string{
-		"",
-		"default",
-		"read_committed",
-		"SNAPshot",
-	}
-
-	for _, iso := range isos {
-		cmd := Command{Statement: "Ok", Isolation: iso}
-
-		assert.NoError(t, cmd.Validate(), iso)
-		assert.Equal(t, strings.ToLower(iso), cmd.Isolation)
-	}
-}
-
-func TestCommandValidateTimeout(t *testing.T) {
-	cmd := Command{Statement: "Ok", Timeout: 0}
-
-	assert.NoError(t, cmd.Validate())
-	assert.NotZero(t, cmd.Timeout)
-
-	cmd = Command{Statement: "Ok", Timeout: 1 * time.Second}
-
-	assert.NoError(t, cmd.Validate())
-	assert.Equal(t, 1*time.Second, cmd.Timeout)
-}
-
-func TestCommandValidateArguments(t *testing.T) {
-	cmd := Command{Statement: "Ok", Arguments: Arguments{
-		Named:      map[string]interface{}{"key": "val"},
-		Positional: []interface{}{"val"},
-	}}
-
-	assert.Error(t, cmd.Validate())
-}
-
-func TestCommandUnmarshalJSON(t *testing.T) {
-	strs := []string{
-		"{\"statement\":\"Ok\"}",
-		"{\"statement\":\"Ok\",\"arguments\":[0, 3.14, \"apple\"],\"mode\":\"query\"}",
-		"{\"statement\":\"Ok\",\"isolation\":\"read_uncommitted\",\"timeout\":1000}",
-	}
-
-	for _, str := range strs {
-		var cmd Command
-		assert.NoError(t, json.Unmarshal([]byte(str), &cmd), str)
-	}
-
-	strs = []string{
-		"",
-		"\"",
-		"{}",
-		"{\"argument\":{\"key\":\"val\"}}",
-		"{\"statement\":[\"Ok\"]}",
-	}
-
-	for _, str := range strs {
-		var cmd Command
-		assert.Error(t, json.Unmarshal([]byte(str), &cmd), str)
-	}
-}
-
-func TestArgumentsValidateNotNil(t *testing.T) {
-	args := Arguments{}
-
-	assert.NoError(t, args.Validate())
-	assert.NotNil(t, args.Named)
-	assert.NotNil(t, args.Positional)
-}
-
-func TestArgumentsValidateMutuallyExclusive(t *testing.T) {
-	args := []Arguments{
-		Arguments{},
-		Arguments{Named: map[string]interface{}{"key": "val"}},
-		Arguments{Positional: []interface{}{"val"}},
-	}
-
-	for _, arg := range args {
-		assert.NoError(t, arg.Validate())
-		assert.False(t, len(arg.Named) > 0 && len(arg.Positional) > 0)
-	}
-
-	args = []Arguments{
-		Arguments{
-			Named:      map[string]interface{}{"key": "val"},
-			Positional: []interface{}{"val"},
-		},
-	}
-
-	for _, arg := range args {
-		assert.Error(t, arg.Validate())
-		assert.True(t, len(arg.Named) > 0 && len(arg.Positional) > 0)
-	}
-}
-
-func TestArgumentsValidateKeys(t *testing.T) {
-	keys := []string{
-		"",
-		"_",
-		"_key",
-		"1",
-		"1key",
-		"\xf0\x28\x8c\xbc", // non-utf8
-	}
-
-	for _, key := range keys {
-		args := Arguments{Named: map[string]interface{}{key: "val"}}
-
-		assert.Error(t, args.Validate(), key)
-	}
-}
-
-func TestArgumentsUnmarshalJSON(t *testing.T) {
-	strs := []string{
-		"{}",
-		"{\"key\":\"val\"}",
-		"{\"key\":[1, 3.14, {\"key\":\"val\"}]}",
-		"[]",
-		"[\"key\",\"val\"]",
-		"[{}]",
-	}
-
-	for _, str := range strs {
-		var args Arguments
-		assert.NoError(t, json.Unmarshal([]byte(str), &args), str)
-	}
-
-	strs = []string{
-		"",
-		"\"",
-		"1",
-		"\"key\"",
-		"{\"key\",\"val\"}",
-	}
-
-	for _, str := range strs {
-		var args Arguments
-		assert.Error(t, json.Unmarshal([]byte(str), &args), str)
-	}
-}

dbconnect/cmd.go

@@ -1,165 +0,0 @@
-package dbconnect
-
-import (
-	"context"
-	"log"
-	"net"
-	"strconv"
-
-	"github.com/urfave/cli/v2"
-	"github.com/urfave/cli/v2/altsrc"
-)
-
-// Cmd is the entrypoint command for dbconnect.
-//
-// The tunnel package is responsible for appending this to tunnel.Commands().
-func Cmd() *cli.Command {
-	return &cli.Command{
-		Category:  "Database Connect (ALPHA) - Deprecated",
-		Name:      "db-connect",
-		Usage:     "deprecated: Access your SQL database from Cloudflare Workers or the browser",
-		ArgsUsage: " ",
-		Description: `
-		This feature has been deprecated. 
-		Please see: 
-
-		cloudflared access tcp --help 
-
-		for setting up database connections to the cloudflare edge.
-		
-
-		Creates a connection between your database and the Cloudflare edge.
-		Now you can execute SQL commands anywhere you can send HTTPS requests.
-
-		Connect your database with any of the following commands, you can also try the "playground" without a database:
-
-			cloudflared db-connect --hostname sql.mysite.com --url postgres://user:pass@localhost?sslmode=disable \
-			                       --auth-domain mysite.cloudflareaccess.com --application-aud my-access-policy-tag
-			cloudflared db-connect --hostname sql-dev.mysite.com --url mysql://localhost --insecure
-			cloudflared db-connect --playground
-		
-		Requests should be authenticated using Cloudflare Access, learn more about how to enable it here:
-
-			https://developers.cloudflare.com/access/service-auth/service-token/
-		`,
-		Flags: []cli.Flag{
-			altsrc.NewStringFlag(&cli.StringFlag{
-				Name:    "url",
-				Usage:   "URL to the database (eg. postgres://user:pass@localhost?sslmode=disable)",
-				EnvVars: []string{"TUNNEL_URL"},
-			}),
-			altsrc.NewStringFlag(&cli.StringFlag{
-				Name:    "hostname",
-				Usage:   "Hostname to accept commands over HTTPS (eg. sql.mysite.com)",
-				EnvVars: []string{"TUNNEL_HOSTNAME"},
-			}),
-			altsrc.NewStringFlag(&cli.StringFlag{
-				Name:    "auth-domain",
-				Usage:   "Cloudflare Access authentication domain for your account (eg. mysite.cloudflareaccess.com)",
-				EnvVars: []string{"TUNNEL_ACCESS_AUTH_DOMAIN"},
-			}),
-			altsrc.NewStringFlag(&cli.StringFlag{
-				Name:    "application-aud",
-				Usage:   "Cloudflare Access application \"AUD\" to verify JWTs from requests",
-				EnvVars: []string{"TUNNEL_ACCESS_APPLICATION_AUD"},
-			}),
-			altsrc.NewBoolFlag(&cli.BoolFlag{
-				Name:    "insecure",
-				Usage:   "Disable authentication, the database will be open to the Internet",
-				Value:   false,
-				EnvVars: []string{"TUNNEL_ACCESS_INSECURE"},
-			}),
-			altsrc.NewBoolFlag(&cli.BoolFlag{
-				Name:    "playground",
-				Usage:   "Run a temporary, in-memory SQLite3 database for testing",
-				Value:   false,
-				EnvVars: []string{"TUNNEL_HELLO_WORLD"},
-			}),
-			altsrc.NewStringFlag(&cli.StringFlag{
-				Name:    "loglevel",
-				Value:   "debug", // Make it more verbose than the tunnel default 'info'.
-				EnvVars: []string{"TUNNEL_LOGLEVEL"},
-				Hidden:  true,
-			}),
-		},
-		Before: CmdBefore,
-		Action: CmdAction,
-		Hidden: true,
-	}
-}
-
-// CmdBefore runs some validation checks before running the command.
-func CmdBefore(c *cli.Context) error {
-	// Show the help text is no flags are specified.
-	if c.NumFlags() == 0 {
-		return cli.ShowSubcommandHelp(c)
-	}
-
-	// Hello-world and playground are synonymous with each other,
-	// unset hello-world to prevent tunnel from initializing the hello package.
-	if c.IsSet("hello-world") {
-		c.Set("playground", "true")
-		c.Set("hello-world", "false")
-	}
-
-	// Unix-socket database urls are supported, but the logic is the same as url.
-	if c.IsSet("unix-socket") {
-		c.Set("url", c.String("unix-socket"))
-		c.Set("unix-socket", "")
-	}
-
-	// When playground mode is enabled, run with an in-memory database.
-	if c.IsSet("playground") {
-		c.Set("url", "sqlite3::memory:?cache=shared")
-		c.Set("insecure", strconv.FormatBool(!c.IsSet("auth-domain") && !c.IsSet("application-aud")))
-	}
-
-	// At this point, insecure configurations are valid.
-	if c.Bool("insecure") {
-		return nil
-	}
-
-	// Ensure that secure configurations specify a hostname, domain, and tag for JWT validation.
-	if !c.IsSet("hostname") || !c.IsSet("auth-domain") || !c.IsSet("application-aud") {
-		log.Fatal("must specify --hostname, --auth-domain, and --application-aud unless you want to run in --insecure mode")
-	}
-
-	return nil
-}
-
-// CmdAction starts the Proxy and sets the url in cli.Context to point to the Proxy address.
-func CmdAction(c *cli.Context) error {
-	// STOR-612: sync with context in tunnel daemon.
-	ctx := context.Background()
-
-	var proxy *Proxy
-	var err error
-	if c.Bool("insecure") {
-		proxy, err = NewInsecureProxy(ctx, c.String("url"))
-	} else {
-		proxy, err = NewSecureProxy(ctx, c.String("url"), c.String("auth-domain"), c.String("application-aud"))
-	}
-
-	if err != nil {
-		log.Fatal(err)
-		return err
-	}
-
-	listenerC := make(chan net.Listener)
-	defer close(listenerC)
-
-	// Since the Proxy should only talk to the tunnel daemon, find the next available
-	// localhost port and start to listen to requests.
-	go func() {
-		err := proxy.Start(ctx, "127.0.0.1:", listenerC)
-		if err != nil {
-			log.Fatal(err)
-		}
-	}()
-
-	// Block until the the Proxy is online, retreive its address, and change the url to point to it.
-	// This is effectively "handing over" control to the tunnel package so it can run the tunnel daemon.
-	c.Set("url", "https://"+(<-listenerC).Addr().String())
-
-	return nil
-}

dbconnect/cmd_test.go

@@ -1,27 +0,0 @@
-package dbconnect
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-
-	"github.com/urfave/cli/v2"
-)
-
-func TestCmd(t *testing.T) {
-	tests := [][]string{
-		{"cloudflared", "db-connect", "--playground"},
-		{"cloudflared", "db-connect", "--playground", "--hostname", "sql.mysite.com"},
-		{"cloudflared", "db-connect", "--url", "sqlite3::memory:?cache=shared", "--insecure"},
-		{"cloudflared", "db-connect", "--url", "sqlite3::memory:?cache=shared", "--hostname", "sql.mysite.com", "--auth-domain", "mysite.cloudflareaccess.com", "--application-aud", "aud"},
-	}
-
-	app := &cli.App{
-		Name:     "cloudflared",
-		Commands: []*cli.Command{Cmd()},
-	}
-
-	for _, test := range tests {
-		assert.NoError(t, app.Run(test))
-	}
-}

dbconnect/proxy.go

@@ -1,278 +0,0 @@
-package dbconnect
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"net/url"
-	"time"
-
-	"github.com/cloudflare/cloudflared/hello"
-	"github.com/cloudflare/cloudflared/logger"
-	"github.com/cloudflare/cloudflared/validation"
-	"github.com/gorilla/mux"
-	"github.com/pkg/errors"
-)
-
-// Proxy is an HTTP server that proxies requests to a Client.
-type Proxy struct {
-	client          Client
-	accessValidator *validation.Access
-	logger          logger.Service
-}
-
-// NewInsecureProxy creates a Proxy that talks to a Client at an origin.
-//
-// In insecure mode, the Proxy will allow all Command requests.
-func NewInsecureProxy(ctx context.Context, origin string) (*Proxy, error) {
-	originURL, err := url.Parse(origin)
-	if err != nil {
-		return nil, errors.Wrap(err, "must provide a valid database url")
-	}
-
-	client, err := NewClient(ctx, originURL)
-	if err != nil {
-		return nil, err
-	}
-
-	err = client.Ping(ctx)
-	if err != nil {
-		return nil, errors.Wrap(err, "could not connect to the database")
-	}
-
-	logger, err := logger.New()
-	if err != nil {
-		return nil, errors.Wrap(err, "error setting up logger")
-	}
-
-	return &Proxy{client, nil, logger}, nil
-}
-
-// NewSecureProxy creates a Proxy that talks to a Client at an origin.
-//
-// In secure mode, the Proxy will reject any Command requests that are
-// not authenticated by Cloudflare Access with a valid JWT.
-func NewSecureProxy(ctx context.Context, origin, authDomain, applicationAUD string) (*Proxy, error) {
-	proxy, err := NewInsecureProxy(ctx, origin)
-	if err != nil {
-		return nil, err
-	}
-
-	validator, err := validation.NewAccessValidator(ctx, authDomain, authDomain, applicationAUD)
-	if err != nil {
-		return nil, err
-	}
-
-	proxy.accessValidator = validator
-
-	return proxy, err
-}
-
-// IsInsecure gets whether the Proxy will accept a Command from any source.
-func (proxy *Proxy) IsInsecure() bool {
-	return proxy.accessValidator == nil
-}
-
-// IsAllowed checks whether a http.Request is allowed to receive data.
-//
-// By default, requests must pass through Cloudflare Access for authentication.
-// If the proxy is explcitly set to insecure mode, all requests will be allowed.
-func (proxy *Proxy) IsAllowed(r *http.Request, verbose ...bool) bool {
-	if proxy.IsInsecure() {
-		return true
-	}
-
-	// Access and Tunnel should prevent bad JWTs from even reaching the origin,
-	// but validate tokens anyway as an abundance of caution.
-	err := proxy.accessValidator.ValidateRequest(r.Context(), r)
-	if err == nil {
-		return true
-	}
-
-	// Warn administrators that invalid JWTs are being rejected. This is indicative
-	// of either a misconfiguration of the CLI or a massive failure of upstream systems.
-	if len(verbose) > 0 {
-		cfRay := proxy.getRayHeader(r)
-		proxy.logger.Infof("dbproxy: Failed JWT authentication: cf-ray: %s %s", cfRay, err)
-	}
-
-	return false
-}
-
-// Start the Proxy at a given address and notify the listener channel when the server is online.
-func (proxy *Proxy) Start(ctx context.Context, addr string, listenerC chan<- net.Listener) error {
-	// STOR-611: use a seperate listener and consider web socket support.
-	httpListener, err := hello.CreateTLSListener(addr)
-	if err != nil {
-		return errors.Wrapf(err, "could not create listener at %s", addr)
-	}
-
-	errC := make(chan error)
-	defer close(errC)
-
-	// Starts the HTTP server and begins to serve requests.
-	go func() {
-		errC <- proxy.httpListen(ctx, httpListener)
-	}()
-
-	// Continually ping the server until it comes online or 10 attempts fail.
-	go func() {
-		var err error
-		for i := 0; i < 10; i++ {
-			_, err = http.Get("http://" + httpListener.Addr().String())
-
-			// Once no error was detected, notify the listener channel and return.
-			if err == nil {
-				listenerC <- httpListener
-				return
-			}
-
-			// Backoff between requests to ping the server.
-			<-time.After(1 * time.Second)
-		}
-		errC <- errors.Wrap(err, "took too long for the http server to start")
-	}()
-
-	return <-errC
-}
-
-// httpListen starts the httpServer and blocks until the context closes.
-func (proxy *Proxy) httpListen(ctx context.Context, listener net.Listener) error {
-	httpServer := &http.Server{
-		Addr:         listener.Addr().String(),
-		Handler:      proxy.httpRouter(),
-		ReadTimeout:  10 * time.Second,
-		WriteTimeout: 60 * time.Second,
-		IdleTimeout:  60 * time.Second,
-	}
-
-	go func() {
-		<-ctx.Done()
-		httpServer.Close()
-		listener.Close()
-	}()
-
-	return httpServer.Serve(listener)
-}
-
-// httpRouter creates a mux.Router for the Proxy.
-func (proxy *Proxy) httpRouter() *mux.Router {
-	router := mux.NewRouter()
-
-	router.HandleFunc("/ping", proxy.httpPing()).Methods("GET", "HEAD")
-	router.HandleFunc("/submit", proxy.httpSubmit()).Methods("POST")
-
-	return router
-}
-
-// httpPing tests the connection to the database.
-//
-// By default, this endpoint is unauthenticated to allow for health checks.
-// To enable authentication, Cloudflare Access must be enabled on this route.
-func (proxy *Proxy) httpPing() http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		ctx := r.Context()
-		err := proxy.client.Ping(ctx)
-
-		if err == nil {
-			proxy.httpRespond(w, r, http.StatusOK, "")
-		} else {
-			proxy.httpRespondErr(w, r, http.StatusInternalServerError, err)
-		}
-	}
-}
-
-// httpSubmit sends a command to the database and returns its response.
-//
-// By default, this endpoint will reject requests that do not pass through Cloudflare Access.
-// To disable authentication, the --insecure flag must be specified in the command line.
-func (proxy *Proxy) httpSubmit() http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		if !proxy.IsAllowed(r, true) {
-			proxy.httpRespondErr(w, r, http.StatusForbidden, fmt.Errorf(""))
-			return
-		}
-
-		var cmd Command
-		err := json.NewDecoder(r.Body).Decode(&cmd)
-		if err != nil {
-			proxy.httpRespondErr(w, r, http.StatusBadRequest, err)
-			return
-		}
-
-		ctx := r.Context()
-		data, err := proxy.client.Submit(ctx, &cmd)
-
-		if err != nil {
-			proxy.httpRespondErr(w, r, http.StatusUnprocessableEntity, err)
-			return
-		}
-
-		w.Header().Set("Content-type", "application/json")
-		err = json.NewEncoder(w).Encode(data)
-		if err != nil {
-			proxy.httpRespondErr(w, r, http.StatusInternalServerError, err)
-		}
-	}
-}
-
-// httpRespond writes a status code and string response to the response writer.
-func (proxy *Proxy) httpRespond(w http.ResponseWriter, r *http.Request, status int, message string) {
-	w.WriteHeader(status)
-
-	// Only expose the message detail of the reponse if the request is not HEAD
-	// and the user is authenticated. For example, this prevents an unauthenticated
-	// failed health check from accidentally leaking sensitive information about the Client.
-	if r.Method != http.MethodHead && proxy.IsAllowed(r) {
-		if message == "" {
-			message = http.StatusText(status)
-		}
-		fmt.Fprint(w, message)
-	}
-}
-
-// httpRespondErr is similar to httpRespond, except it formats errors to be more friendly.
-func (proxy *Proxy) httpRespondErr(w http.ResponseWriter, r *http.Request, defaultStatus int, err error) {
-	status, err := httpError(defaultStatus, err)
-
-	proxy.httpRespond(w, r, status, err.Error())
-	if len(err.Error()) > 0 {
-		cfRay := proxy.getRayHeader(r)
-		proxy.logger.Infof("dbproxy: Database proxy error: cf-ray: %s %s", cfRay, err)
-	}
-}
-
-// getRayHeader returns the request's Cf-ray header.
-func (proxy *Proxy) getRayHeader(r *http.Request) string {
-	return r.Header.Get("Cf-ray")
-}
-
-// httpError extracts common errors and returns an status code and friendly error.
-func httpError(defaultStatus int, err error) (int, error) {
-	if err == nil {
-		return http.StatusNotImplemented, fmt.Errorf("error expected but found none")
-	}
-
-	if err == io.EOF {
-		return http.StatusBadRequest, fmt.Errorf("request body cannot be empty")
-	}
-
-	if err == context.DeadlineExceeded {
-		return http.StatusRequestTimeout, err
-	}
-
-	_, ok := err.(net.Error)
-	if ok {
-		return http.StatusRequestTimeout, err
-	}
-
-	if err == context.Canceled {
-		// Does not exist in Golang, but would be: http.StatusClientClosedWithoutResponse
-		return 444, err
-	}
-
-	return defaultStatus, err
-}