Release 1.21.5

* Uses experimental docker multi-arch

* Fixes dockerfile to build node and golang images

* Adds ldflags

* Adds buildx to push.yml

* Adds docker login

* Adds login in again

* Login using run

* Login using run

* Adds Makefile

* Updates actions

* Fixes push

.babelrc

@@ -1,18 +1,9 @@
 {
-  "presets": [
-    [
-      "@babel/preset-env",
-      {
-        "modules": false
-      }
-    ]
-  ],
-  "plugins": [
-    [
-      "@babel/plugin-transform-runtime",
-      {
-        "regenerator": true
-      }
-    ]
-  ]
+  "presets": [["@babel/preset-env", { "modules": false }]],
+  "plugins": [["@babel/plugin-transform-runtime", { "regenerator": true }]],
+  "env": {
+    "test": {
+      "presets": [["@babel/preset-env", { "targets": { "node": "current" } }]]
+    }
+  }
 }

.dockerignore

@@ -0,0 +1,6 @@
+node_modules
+.cache
+.idea
+dist
+.git
+static

.editorconfig

@@ -10,10 +10,8 @@ trim_trailing_whitespace = true
 max_line_length = 120
 
 [*.go]
-indent_size = 4
-
-[Makefile]
 indent_style = tab
+indent_size = 4
 
 [package.json]
 indent_size = 1

.gitattributes

@@ -0,0 +1 @@
+*.snapshot binary

.github/workflows/deploy.yml

@@ -0,0 +1,46 @@
+on:
+  push:
+    tags:
+      - "v*"
+name: Test and Release
+jobs:
+  npm-test:
+    name: npm test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: npm test
+        uses: actions/setup-node@v1
+      - name: npm it
+        run: npm it
+  go-test:
+    name: go test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14.x
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Test
+        run: go test -cover ./...
+  buildx:
+    needs: [go-test, npm-test]
+    name: Release
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: crazy-max/ghaction-docker-buildx@v1
+        with:
+          version: latest
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+      - name: Docker Login
+        run: docker login -u ${{ secrets.DOCKER_USERNAME }} -p ${{ secrets.DOCKER_PASSWORD }}
+      - name: Run Buildx
+        run: make publish

.github/workflows/push.yml

@@ -0,0 +1,25 @@
+on: push
+name: Test
+jobs:
+  npm-test:
+    name: npm test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: npm test
+        uses: actions/setup-node@v1
+      - name: npm it
+        run: npm it
+  go-test:
+    name: go test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14.x
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Test
+        run: go test -cover ./...

.gitignore

@@ -4,4 +4,5 @@ node_modules
 .cache
 static
 a_main-packr.go
-dozzle
+dozzle
+gin-bin

.goreleaser.yml

@@ -1,38 +0,0 @@
-before:
-  hooks:
-    - npm run clean
-    - npm run build
-    - packr
-builds:
-  - env:
-      - CGO_ENABLED=0
-    goos:
-      - linux
-      - darwin
-    goarch:
-      - amd64
-      - arm
-      - arm64
-archive:
-  replacements:
-    amd64: 64-bit
-    386: 32-bit
-    arm64: ARM_64-bit
-    arm: ARM_32-bit
-    linux: Linux
-    darwin: Darwin
-checksum:
-  name_template: "checksums.txt"
-snapshot:
-  name_template: "{{ .Tag }}-next"
-changelog:
-  sort: asc
-  filters:
-    exclude:
-      - "^docs:"
-      - "^test:"
-dockers:
-  - image_templates:
-      - "amir20/dozzle:{{ .Tag }}"
-      - "amir20/dozzle:v{{ .Major }}.{{ .Minor }}"
-      - amir20/dozzle:latest

.reflex

@@ -0,0 +1 @@
+-r '\.go$' -R '^node_modules/' -R '^static/' -R '^.cache/' -G '*_test.go' -s -- go run main.go --level debug

.travis.yml

@@ -1,26 +0,0 @@
-language: go
-
-go:
-  - "1.11"
-
-services:
-  - docker
-
-before_install:
-  - nvm install --lts
-  - npm i -g npm
-  - npm ci
-  - go get -u github.com/gobuffalo/packr/packr
-
-after_success:
-  # docker login is required if you want to push docker images.
-  # DOCKER_PASSWORD should be a secret in your .travis.yml configuration.
-  # - test -n "$TRAVIS_TAG" && docker login -u=myuser -p="$DOCKER_PASSWORD"
-
-deploy:
-  - provider: script
-    skip_cleanup: true
-    script: curl -sL https://git.io/goreleaser | bash
-    on:
-      tags: true
-      condition: $TRAVIS_OS_NAME = linux

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at findamir@gmail.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

Dockerfile

@@ -1,10 +1,56 @@
-FROM alpine:latest as certs
-RUN apk --update add ca-certificates
+# Build assets
+FROM node:13-alpine as node
+
+RUN apk add --no-cache git openssh python make g++ util-linux
+
+WORKDIR /build
+
+# Install dependencies
+COPY package*.json ./
+RUN npm install
+
+# Copy assets to build
+COPY assets ./assets
+
+# Do the build
+RUN npm run build
+
+
+FROM golang:alpine AS builder
+
+RUN apk add --no-cache git ca-certificates
+RUN mkdir /dozzle
+
+WORKDIR /dozzle
+
+# Needed for assets
+RUN go get -u github.com/gobuffalo/packr/packr
+
+# Copy go mod files
+COPY go.* ./
+RUN go mod download
+
+# Copy assets built with node
+COPY --from=node /build/static ./static
+
+# Copy all other files
+COPY . .
+
+# Compile static files
+RUN packr -z
+
+# Args
+ARG TAG=dev
+
+# Build binary
+RUN CGO_ENABLED=0 go build -ldflags "-s -w -X main.version=$TAG"  -o dozzle
 
 FROM scratch
+
 ENV PATH=/bin
 ENV DOCKER_API_VERSION 1.38
-COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
-COPY dozzle /
+
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /dozzle/dozzle /dozzle
+
 ENTRYPOINT ["/dozzle"]
-EXPOSE 8080

Makefile

@@ -0,0 +1,6 @@
+TAG := $(shell git describe --tags)
+PLATFROMS := linux/amd64,linux/arm64,linux/arm/v7
+
+.PHONY: publish
+publish:
+	docker buildx build --build-arg TAG=$(TAG) --platform $(PLATFROMS) -t amir20/dozzle:latest -t amir20/dozzle:$(TAG) --push .

README.md

@@ -1,10 +1,16 @@
-# dozzle
+[![Go Report Card](https://goreportcard.com/badge/github.com/amir20/dozzle)](https://goreportcard.com/report/github.com/amir20/dozzle)
+[![Docker Pulls](https://img.shields.io/docker/pulls/amir20/dozzle.svg)](https://hub.docker.com/r/amir20/dozzle/)
+[![Docker Size](https://images.microbadger.com/badges/image/amir20/dozzle.svg)](https://hub.docker.com/r/amir20/dozzle/)
+[![Docker Version](https://images.microbadger.com/badges/version/amir20/dozzle.svg)](https://hub.docker.com/r/amir20/dozzle/)
+![Test](https://github.com/amir20/dozzle/workflows/Test/badge.svg)
 
-Dozzle is a log viewer for Docker. It's free. It's small. And it's right in your browser. Oh, did I mention it is also real-time?
+# Dozzle - [dozzle.dev](https://dozzle.dev/)
+
+Dozzle is a real-time log viewer for Docker. It's free. It's small. And it's in your browser.
 
 While dozzle should work for most, it is not meant to be a full logging solution. For enterprise use, I recommend you look at [Loggly](https://www.loggly.com), [Papertrail](https://papertrailapp.com) or [Kibana](https://www.elastic.co/products/kibana).
 
-But if you don't want to pay for those services, then you are in luck! Dozzle will be able to capture all logs from your containers and send them in real-time to your browser. Installation is also very easy.
+But if you don't want to pay for these services, then Dozzle can help! Dozzle will be able to capture all logs from your containers and send them in real-time to your browser. Installation is also very easy. Dozzle is not a database. It does not store or save any logs. You can only see live logs while using Dozzle.
 
 ![Image](demo.gif)
 
@@ -16,12 +22,36 @@ Dozzle is a very small Docker container (4 MB compressed). Pull the latest relea
 
 ## Using dozzle
 
-The simplest way to use dozzle is to run the docker container. Also, mount the Docker Unix socket with `-volume` to `/var/run/docker.sock`:
+The simplest way to use dozzle is to run the docker container. Also, mount the Docker Unix socket with `--volume` to `/var/run/docker.sock`:
 
     $ docker run --name dozzle -d --volume=/var/run/docker.sock:/var/run/docker.sock -p 8888:8080 amir20/dozzle:latest
 
 dozzle will be available at [http://localhost:8888/](http://localhost:8888/). You can change `-p 8888:8080` to any port. For example, if you want to view dozzle over port 4040 then you would do `-p 4040:8080`.
 
+### With Docker swarm
+
+    docker service create \
+    --name=dozzle \
+    --publish=8888:8080 \
+    --constraint=node.role==manager \
+    --mount=type=bind,src=/var/run/docker.sock,dst=/var/run/docker.sock \
+    amir20/dozzle:latest
+
+### With Docker compose
+
+    version: "3"
+    services:
+      dozzle:
+        container_name: dozzle
+        image: amir20/dozzle:latest
+        environment:
+          - DOZZLE_TAILSIZE=100
+          - DOZZLE_FILTER=status=running
+        volumes:
+          - /var/run/docker.sock:/var/run/docker.sock
+        ports:
+          - 9999:8080
+
 #### Security
 
 dozzle doesn't support authentication out of the box. You can control the device dozzle binds to by passing `--addr` parameter. For example,
@@ -30,28 +60,48 @@ dozzle doesn't support authentication out of the box. You can control the device
 
 will bind to `localhost` on port `1224`. You can then use a reverse proxy to control who can see dozzle.
 
+If you wish to restrict the containers shown you can pass the `--filter` parameter. For example,
+
+    $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -p 8888:1224 amir20/dozzle:latest --filter name=foo
+
+this would then only allow you to view containers with a name starting with "foo". You can use other filters like `status` as well, please check the official docker [command line docs](https://docs.docker.com/engine/reference/commandline/ps/#filtering) for available filters.
+
 #### Changing base URL
 
 dozzle by default mounts to "/". If you want to control the base path you can use the `--base` option. For example, if you want to mount at "/foobar",
-then you can override by using `--base /foobar`.
+then you can override by using `--base /foobar`. See env variables below for using `DOZZLE_BASE` to change this.
 
-    $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -p 8888:8080 amir20/dozzle:latest --base /foobar
+    $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -p 8080:8080 amir20/dozzle:latest --base /foobar
 
 dozzle will be available at [http://localhost:8080/foobar/](http://localhost:8080/foobar/).
 
+#### Environment variables and configuration
 
-#### Environment variable, DOCKER_API_VERSION
+Dozzle follows the [12-factor](https://12factor.net/) model. Configurations can use the CLI flags or enviroment variables. The table below outlines all supported options and their respective env vars.
 
-If you see
-
-    2018/10/31 08:53:17 Error response from daemon: client version 1.40 is too new. Maximum supported API version is 1.38
-
-Then you need to modify `DOCKER_API_VERSION` to let dozzle know which version of the API is supported. By default, `DOCKER_API_VERSION=1.38` and you can change it by passing `-e` flag. For example, this would change the `DOCKER_API_VERSION` to `1.20`
-
-    $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -e DOCKER_API_VERSION=1.20 -p 8888:8080 amir20/dozzle:latest
-
-If you are not sure what to set `DOCKER_API_VERSION` then run `docker version` which will show supported API version.
+| Flag         | Env Variable         | Default |
+| ------------ | -------------------- | ------- |
+| `--addr`     | `DOZZLE_ADDR`        | `:8080` |
+| `--base`     | `DOZZLE_BASE`        | `/`     |
+| `--level`    | `DOZZLE_LEVEL`       | `info`  |
+| `--showAll`  | `DOZZLE_SHOWALL`     | `false` |
+| n/a          | `DOCKER_API_VERSION` | `1.38`  |
+| `--tailSize` | `DOZZLE_TAILSIZE`    | `300`   |
+| `--filter`   | `DOZZLE_FILTER`      | `""`    |
 
 ## License
 
 [MIT](LICENSE)
+
+## Building
+
+To Build and test locally:
+
+1. Install NodeJs.
+2. Install Go.
+3. Globally install [packr utility](https://github.com/gobuffalo/packr) with `go get -u github.com/gobuffalo/packr/packr` outside of dozzle directory.
+4. Install [reflex](https://github.com/cespare/reflex) with `get -u github.com/cespare/reflex` outside of dozzle.
+5. Install node modules with `npm install`.
+6. Do `npm start`
+
+Instructions for Github actions can be found [here](.github/goreleaser/Dockerfile) which build and tests Dozzle.

__snapshots__/dozzle.snapshot

@@ -0,0 +1,85 @@
+/* snapshot: Test_createRoutes_foobar */
+HTTP/1.1 200 OK
+Connection: close
+Content-Type: text/plain; charset=utf-8
+
+foo page
+
+/* snapshot: Test_createRoutes_index */
+HTTP/1.1 200 OK
+Connection: close
+Content-Type: text/plain; charset=utf-8
+
+index page
+
+/* snapshot: Test_createRoutes_redirect */
+HTTP/1.1 301 Moved Permanently
+Connection: close
+Content-Type: text/html; charset=utf-8
+Location: /foobar/
+
+<a href="/foobar/">Moved Permanently</a>.
+
+/* snapshot: Test_createRoutes_version */
+HTTP/1.1 200 OK
+Connection: close
+Content-Type: text/plain; charset=utf-8
+
+dev
+none
+unknown
+
+/* snapshot: Test_handler_listContainers_happy */
+HTTP/1.1 200 OK
+Connection: close
+Content-Type: text/plain; charset=utf-8
+
+[{"id":"1234567890","names":null,"name":"test","image":"image","imageId":"image_id","command":"command","created":0,"state":"state","status":"status"}]
+
+/* snapshot: Test_handler_streamEvents_error */
+HTTP/1.1 200 OK
+Connection: close
+Cache-Control: no-cache
+Connection: keep-alive
+Content-Type: text/event-stream
+
+/* snapshot: Test_handler_streamEvents_error_request */
+HTTP/1.1 200 OK
+Connection: close
+Cache-Control: no-cache
+Connection: keep-alive
+Content-Type: text/event-stream
+
+/* snapshot: Test_handler_streamEvents_happy */
+HTTP/1.1 200 OK
+Connection: close
+Cache-Control: no-cache
+Connection: keep-alive
+Content-Type: text/event-stream
+
+event: containers-changed
+data: start
+
+/* snapshot: Test_handler_streamLogs_error_finding_container */
+HTTP/1.1 500 Internal Server Error
+Connection: close
+Content-Type: text/plain; charset=utf-8
+X-Content-Type-Options: nosniff
+
+error finding container
+
+/* snapshot: Test_handler_streamLogs_error_reading */
+HTTP/1.1 200 OK
+Connection: close
+Cache-Control: no-cache
+Connection: keep-alive
+Content-Type: text/event-stream
+
+/* snapshot: Test_handler_streamLogs_happy */
+HTTP/1.1 200 OK
+Connection: close
+Cache-Control: no-cache
+Connection: keep-alive
+Content-Type: text/event-stream
+
+data: INFO Testing logs...

assets/App.spec.js

@@ -0,0 +1,51 @@
+import EventSource from "eventsourcemock";
+import { shallowMount, RouterLinkStub, createLocalVue } from "@vue/test-utils";
+import Vuex from "vuex";
+import App from "./App";
+
+const localVue = createLocalVue();
+
+localVue.use(Vuex);
+
+describe("<App />", () => {
+  const stubs = { RouterLink: RouterLinkStub, "router-view": true, "ion-icon": true };
+  let store;
+
+  beforeEach(() => {
+    global.BASE_PATH = "";
+    global.EventSource = EventSource;
+    const state = {
+      containers: [
+        { id: "abc", name: "Test 1" },
+        { id: "xyz", name: "Test 2" }
+      ],
+      settings: { menuWidth: 15 }
+    };
+
+    const actions = {
+      FETCH_CONTAINERS: () => Promise.resolve()
+    };
+
+    store = new Vuex.Store({
+      state,
+      actions
+    });
+  });
+
+  test("is a Vue instance", async () => {
+    const wrapper = shallowMount(App, { stubs, store, localVue });
+    expect(wrapper.isVueInstance()).toBeTruthy();
+  });
+
+  test("has right title", async () => {
+    const wrapper = shallowMount(App, { stubs, store, localVue });
+    await wrapper.vm.$nextTick();
+    expect(wrapper.vm.title).toContain("2 containers");
+  });
+
+  test("renders correctly", async () => {
+    const wrapper = shallowMount(App, { stubs, store, localVue });
+    await wrapper.vm.$nextTick();
+    expect(wrapper.element).toMatchSnapshot();
+  });
+});

assets/App.vue

@@ -1,89 +1,148 @@
 <template lang="html">
-  <div class="columns is-marginless">
-    <aside class="column menu is-2">
-      <a
-        role="button"
-        class="navbar-burger burger is-white is-hidden-tablet is-pulled-right"
-        @click="showNav = !showNav;"
-        :class="{ 'is-active': showNav }"
-      >
-        <span></span> <span></span> <span></span>
-      </a>
-      <h1 class="title has-text-warning is-marginless">Dozzle</h1>
-      <p class="menu-label is-hidden-mobile" :class="{ 'is-active': showNav }">Containers</p>
-      <ul class="menu-list is-hidden-mobile" :class="{ 'is-active': showNav }">
-        <li v-for="item in containers">
-          <router-link
-            :to="{ name: 'container', params: { id: item.Id } }"
-            active-class="is-active"
-            class="tooltip is-tooltip-right is-tooltip-info"
-            :data-tooltip="item.Names[0]"
-          >
-            <div class="hide-overflow">{{ item.Names[0] }}</div>
-          </router-link>
-        </li>
-      </ul>
-    </aside>
-    <div class="column is-offset-2"><router-view></router-view></div>
-  </div>
+  <main>
+    <mobile-menu v-if="isMobile"></mobile-menu>
+
+    <splitpanes @resized="onResized($event)">
+      <pane min-size="10" :size="settings.menuWidth" v-if="!isMobile" v-show="!collapseNav">
+        <side-menu></side-menu>
+      </pane>
+      <pane min-size="10">
+        <splitpanes>
+          <pane class="has-min-height">
+            <search></search>
+            <router-view></router-view>
+          </pane>
+          <pane v-for="other in activeContainers" :key="other.id" v-if="!isMobile">
+            <scrollable-view>
+              <template v-slot:header>
+                <container-title :value="other.name" closable @close="removeActiveContainer(other)"></container-title>
+              </template>
+              <log-viewer-with-source :id="other.id"></log-viewer-with-source>
+            </scrollable-view>
+          </pane>
+        </splitpanes>
+      </pane>
+    </splitpanes>
+    <button
+      @click="collapseNav = !collapseNav"
+      class="button is-small is-rounded is-settings-control"
+      :class="{ collapsed: collapseNav }"
+      id="hide-nav"
+      v-if="!isMobile"
+    >
+      <span class="icon">
+        <ion-icon :name="collapseNav ? 'arrow-dropright' : 'arrow-dropleft'" size="large"></ion-icon>
+      </span>
+    </button>
+  </main>
 </template>
 
 <script>
+import { mapActions, mapGetters, mapState } from "vuex";
+import { Splitpanes, Pane } from "splitpanes";
+
+import LogViewerWithSource from "./components/LogViewerWithSource";
+import ScrollableView from "./components/ScrollableView";
+import SideMenu from "./components/SideMenu";
+import MobileMenu from "./components/MobileMenu";
+import Search from "./components/Search";
+import ContainerTitle from "./components/ContainerTitle";
+
 export default {
   name: "App",
+  components: {
+    LogViewerWithSource,
+    SideMenu,
+    MobileMenu,
+    ScrollableView,
+    Splitpanes,
+    Pane,
+    Search,
+    ContainerTitle
+  },
   data() {
     return {
-      containers: [],
-      showNav: false
+      title: "",
+      collapseNav: false
+    };
+  },
+  metaInfo() {
+    return {
+      title: this.title,
+      titleTemplate: "%s - Dozzle"
     };
   },
   async created() {
-    this.containers = await (await fetch(`${BASE_PATH}/api/containers.json`)).json();
+    await this.fetchContainerList();
+    this.title = `${this.containers.length} containers`;
+  },
+  mounted() {
+    if (this.hasSmallerScrollbars) {
+      document.documentElement.classList.add("has-custom-scrollbars");
+    }
+    this.menuWidth = this.settings.menuWidth;
+  },
+  watch: {
+    hasSmallerScrollbars(newValue, oldValue) {
+      if (newValue) {
+        document.documentElement.classList.add("has-custom-scrollbars");
+      } else {
+        document.documentElement.classList.remove("has-custom-scrollbars");
+      }
+    }
+  },
+  computed: {
+    ...mapState(["containers", "activeContainers", "isMobile", "settings"]),
+    hasSmallerScrollbars() {
+      return this.settings.smallerScrollbars;
+    }
+  },
+  methods: {
+    ...mapActions({
+      fetchContainerList: "FETCH_CONTAINERS",
+      removeActiveContainer: "REMOVE_ACTIVE_CONTAINER",
+      updateSetting: "UPDATE_SETTING"
+    }),
+    onResized(e) {
+      if (e.length == 2) {
+        const menuWidth = e[0].size;
+        this.updateSetting({ menuWidth });
+      }
+    }
   }
 };
 </script>
 
 <style scoped lang="scss">
-.is-hidden-mobile.is-active {
-  display: block !important;
-}
-
-.navbar-burger {
-  height: 2.35rem;
-}
-
-aside {
-  position: fixed;
-  z-index: 2;
-  padding: 1em;
-
-  @media screen and (max-width: 768px) {
-    & {
-      position: sticky;
-      top: 0;
-      left: 0;
-      right: 0;
-      background: #222;
-    }
-
-    .tooltip::after,
-    .tooltip::before {
-      display: none !important;
-    }
-
-    .menu-label {
-      margin-top: 1em;
-    }
+::v-deep .splitpanes__splitter {
+  min-width: 4px;
+  background: #666;
+  &:hover {
+    background: rgb(255, 221, 87);
   }
 }
 
-.hide-overflow {
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  overflow: hidden;
+.button.has-no-border {
+  border-color: transparent !important;
 }
 
-.burger.is-white {
-  color: #fff;
+.has-min-height {
+  min-height: 100vh;
+}
+
+#hide-nav {
+  position: fixed;
+  left: 10px;
+  bottom: 10px;
+  &.collapsed {
+    left: -40px;
+    width: 60px;
+    padding-left: 40px;
+    background: rgba(0, 0, 0, 0.95);
+
+    &:hover {
+      left: -25px;
+    }
+  }
 }
 </style>

assets/__snapshots__/App.spec.js.snap

@@ -0,0 +1,55 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<App /> renders correctly 1`] = `
+<main>
+  <!---->
+   
+  <splitpanes-stub
+    dblclicksplitter="true"
+    pushotherpanes="true"
+  >
+    <pane-stub
+      maxsize="100"
+      minsize="10"
+      size="15"
+    >
+      <side-menu-stub />
+    </pane-stub>
+     
+    <pane-stub
+      maxsize="100"
+      minsize="10"
+    >
+      <splitpanes-stub
+        dblclicksplitter="true"
+        pushotherpanes="true"
+      >
+        <pane-stub
+          class="has-min-height"
+          maxsize="100"
+          minsize="0"
+        >
+          <search-stub />
+           
+          <router-view-stub />
+        </pane-stub>
+         
+      </splitpanes-stub>
+    </pane-stub>
+  </splitpanes-stub>
+   
+  <button
+    class="button is-small is-rounded is-settings-control"
+    id="hide-nav"
+  >
+    <span
+      class="icon"
+    >
+      <ion-icon-stub
+        name="arrow-dropleft"
+        size="large"
+      />
+    </span>
+  </button>
+</main>
+`;

assets/components/ContainerTitle.vue

@@ -0,0 +1,30 @@
+<template lang="html">
+  <div class="name columns is-marginless">
+    <span class="column">{{ value }}</span>
+    <span class="column is-narrow" v-if="closable">
+      <button class="delete is-medium" @click="$emit('close')"></button>
+    </span>
+  </div>
+</template>
+
+<script>
+export default {
+  props: {
+    value: String,
+    closable: {
+      type: Boolean,
+      default: false
+    }
+  },
+  name: "ContainerTitle"
+};
+</script>
+
+<style lang="scss" scoped>
+.name {
+  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+  background: rgba(0, 0, 0, 0.1);
+  font-weight: bold;
+  font-family: monospace;
+}
+</style>

assets/components/InfiniteLoader.vue

@@ -0,0 +1,37 @@
+<template lang="html">
+  <div ref="observer" class="control" :class="{ 'is-loading': isLoading }"></div>
+</template>
+
+<script>
+export default {
+  name: "InfiniteLoader",
+  data() {
+    return {
+      isLoading: false
+    };
+  },
+  props: {
+    onLoadMore: Function,
+    enabled: Boolean
+  },
+  mounted() {
+    const intersectionObserver = new IntersectionObserver(
+      async entries => {
+        if (entries[0].intersectionRatio <= 0) return;
+        if (this.onLoadMore && this.enabled) {
+          const scrollingParent = this.$el.closest("[data-scrolling]") || document.documentElement;
+          const previousHeight = scrollingParent.scrollHeight;
+          this.isLoading = true;
+          await this.onLoadMore();
+          this.isLoading = false;
+          this.$nextTick(() => (scrollingParent.scrollTop += scrollingParent.scrollHeight - previousHeight));
+        }
+      },
+      { threshholds: 1 }
+    );
+
+    intersectionObserver.observe(this.$refs.observer);
+  }
+};
+</script>
+<style scoped lang="scss"></style>

assets/components/LogEventSource.spec.js

@@ -0,0 +1,179 @@
+import EventSource from "eventsourcemock";
+import { sources } from "eventsourcemock";
+import { shallowMount, mount, createLocalVue } from "@vue/test-utils";
+import Vuex from "vuex";
+import MockDate from "mockdate";
+import debounce from "lodash.debounce";
+import LogEventSource from "./LogEventSource.vue";
+import LogViewer from "./LogViewer.vue";
+
+jest.mock("lodash.debounce", () => jest.fn(fn => fn));
+
+describe("<LogEventSource />", () => {
+  beforeEach(() => {
+    global.BASE_PATH = "";
+    global.EventSource = EventSource;
+    MockDate.set("6/12/2019", 0);
+    window.scrollTo = jest.fn();
+
+    const observe = jest.fn();
+    const unobserve = jest.fn();
+    global.IntersectionObserver = jest.fn(() => ({
+      observe,
+      unobserve
+    }));
+    debounce.mockClear();
+  });
+
+  afterEach(() => MockDate.reset());
+
+  function createLogEventSource(searchFilter = null) {
+    const localVue = createLocalVue();
+    localVue.use(Vuex);
+
+    localVue.component("log-event-source", LogEventSource);
+    localVue.component("log-viewer", LogViewer);
+
+    const state = { searchFilter, settings: { size: "medium" } };
+
+    const store = new Vuex.Store({
+      state
+    });
+
+    return mount(LogEventSource, {
+      localVue,
+      store,
+      scopedSlots: {
+        default: `
+        <log-viewer :messages="props.messages"></log-viewer>
+        `
+      },
+      propsData: { id: "abc" }
+    });
+  }
+
+  test("is a Vue instance", async () => {
+    const wrapper = shallowMount(LogEventSource);
+    expect(wrapper.isVueInstance()).toBeTruthy();
+  });
+
+  test("renders correctly", async () => {
+    const wrapper = createLogEventSource();
+    expect(wrapper.element).toMatchInlineSnapshot(`
+      <div>
+        <div
+          class="control"
+        />
+         
+        <ul
+          class="events medium"
+        />
+      </div>
+    `);
+  });
+
+  test("should connect to EventSource", async () => {
+    shallowMount(LogEventSource);
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    expect(sources["/api/logs/stream?id=abc"].readyState).toBe(1);
+  });
+
+  test("should close EventSource", async () => {
+    const wrapper = createLogEventSource();
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    wrapper.destroy();
+    expect(sources["/api/logs/stream?id=abc"].readyState).toBe(2);
+  });
+
+  test("should parse messages", async () => {
+    const wrapper = createLogEventSource();
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    sources["/api/logs/stream?id=abc"].emitMessage({ data: `2019-06-12T10:55:42.459034602Z "This is a message."` });
+
+    const [message, _] = wrapper.vm.messages;
+    const { key, ...messageWithoutKey } = message;
+
+    expect(key).toBe("2019-06-12T10:55:42.459034602Z");
+    expect(messageWithoutKey).toMatchInlineSnapshot(`
+      Object {
+        "date": 2019-06-12T10:55:42.459Z,
+        "message": "\\"This is a message.\\"",
+      }
+    `);
+  });
+
+  test("should pass messages to slot", async () => {
+    const wrapper = createLogEventSource();
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    sources["/api/logs/stream?id=abc"].emitMessage({ data: `2019-06-12T10:55:42.459034602Z "This is a message."` });
+    const [message, _] = wrapper.find(LogViewer).vm.messages;
+
+    const { key, ...messageWithoutKey } = message;
+
+    expect(key).toBe("2019-06-12T10:55:42.459034602Z");
+
+    expect(messageWithoutKey).toMatchInlineSnapshot(`
+      Object {
+        "date": 2019-06-12T10:55:42.459Z,
+        "message": "\\"This is a message.\\"",
+      }
+    `);
+  });
+
+  test("should render messages", async () => {
+    const wrapper = createLogEventSource();
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    sources["/api/logs/stream?id=abc"].emitMessage({ data: `2019-06-12T10:55:42.459034602Z "This is a message."` });
+
+    expect(wrapper.find("ul.events")).toMatchInlineSnapshot(`
+      <ul class="events medium">
+        <li><span class="date">today at 10:55 AM</span> <span class="text">"This is a message."</span></li>
+      </ul>
+    `);
+  });
+
+  test("should render messages with color", async () => {
+    const wrapper = createLogEventSource();
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    sources["/api/logs/stream?id=abc"].emitMessage({
+      data: `2019-06-12T10:55:42.459034602Z \x1b[30mblack\x1b[37mwhite`
+    });
+
+    expect(wrapper.find("ul.events")).toMatchInlineSnapshot(`
+      <ul class="events medium">
+        <li><span class="date">today at 10:55 AM</span> <span class="text"><span style="color:#000">black<span style="color:#AAA">white</span></span></span></li>
+      </ul>
+    `);
+  });
+
+  test("should render messages with html entities", async () => {
+    const wrapper = createLogEventSource();
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    sources["/api/logs/stream?id=abc"].emitMessage({
+      data: `2019-06-12T10:55:42.459034602Z <test>foo bar</test>`
+    });
+
+    expect(wrapper.find("ul.events")).toMatchInlineSnapshot(`
+      <ul class="events medium">
+        <li><span class="date">today at 10:55 AM</span> <span class="text">&lt;test&gt;foo bar&lt;/test&gt;</span></li>
+      </ul>
+    `);
+  });
+
+  test("should render messages with filter", async () => {
+    const wrapper = createLogEventSource("test");
+    sources["/api/logs/stream?id=abc"].emitOpen();
+    sources["/api/logs/stream?id=abc"].emitMessage({
+      data: `2019-06-11T10:55:42.459034602Z Foo bar`
+    });
+    sources["/api/logs/stream?id=abc"].emitMessage({
+      data: `2019-06-12T10:55:42.459034602Z This is a test <hi></hi>`
+    });
+
+    expect(wrapper.find("ul.events")).toMatchInlineSnapshot(`
+      <ul class="events medium">
+        <li><span class="date">today at 10:55 AM</span> <span class="text">This is a <mark>test</mark> &lt;hi&gt;&lt;/hi&gt;</span></li>
+      </ul>
+    `);
+  });
+});

assets/components/LogEventSource.vue

@@ -0,0 +1,89 @@
+<template lang="html">
+  <div>
+    <infinite-loader :onLoadMore="loadOlderLogs" :enabled="messages.length > 100"></infinite-loader>
+    <slot :messages="messages"></slot>
+  </div>
+</template>
+
+<script>
+import debounce from "lodash.debounce";
+import InfiniteLoader from "./InfiniteLoader";
+
+function parseMessage(data) {
+  const date = new Date(data.substring(0, 30));
+  const key = data.substring(0, 30);
+  const message = data.substring(30).trim();
+  return {
+    key,
+    date,
+    message
+  };
+}
+
+export default {
+  props: ["id"],
+  name: "LogEventSource",
+  components: {
+    InfiniteLoader
+  },
+  data() {
+    return {
+      messages: [],
+      buffer: []
+    };
+  },
+  created() {
+    this.es = null;
+    this.loadLogs(this.id);
+  },
+  methods: {
+    loadLogs(id) {
+      if (this.es) {
+        this.es.close();
+        this.messages = [];
+        this.es = null;
+      }
+      this.es = new EventSource(`${BASE_PATH}/api/logs/stream?id=${this.id}`);
+      const flushBuffer = debounce(
+        () => {
+          this.messages.push(...this.buffer);
+          this.buffer = [];
+        },
+        250,
+        { maxWait: 1000 }
+      );
+      this.es.onmessage = e => {
+        this.buffer.push(parseMessage(e.data));
+        flushBuffer();
+      };
+      this.es.onerror = e => console.log("EventSource failed." + e);
+      this.$once("hook:beforeDestroy", () => this.es.close());
+    },
+    async loadOlderLogs() {
+      if (this.messages.length < 300) return;
+
+      const to = this.messages[0].date;
+      const last = this.messages[299].date;
+      const delta = to - last;
+      const from = new Date(to.getTime() + delta);
+      const logs = await (
+        await fetch(`/api/logs?id=${this.id}&from=${from.toISOString()}&to=${to.toISOString()}`)
+      ).text();
+      if (logs) {
+        const newMessages = logs
+          .trim()
+          .split("\n")
+          .map(line => parseMessage(line));
+        this.messages.unshift(...newMessages);
+      }
+    }
+  },
+  watch: {
+    id(newValue, oldValue) {
+      if (oldValue !== newValue) {
+        this.loadLogs(newValue);
+      }
+    }
+  }
+};
+</script>

assets/components/LogViewer.vue

@@ -0,0 +1,113 @@
+<template lang="html">
+  <ul class="events" :class="settings.size">
+    <li v-for="item in filtered" :key="item.key">
+      <span class="date">{{ item.date | relativeTime }}</span>
+      <span class="text" v-html="colorize(item.message)"></span>
+    </li>
+  </ul>
+</template>
+
+<script>
+import { mapActions, mapGetters, mapState } from "vuex";
+import { formatRelative } from "date-fns";
+import AnsiConvertor from "ansi-to-html";
+
+const ansiConvertor = new AnsiConvertor({ escapeXML: true });
+
+export default {
+  props: ["messages"],
+  name: "LogViewer",
+  components: {},
+  data() {
+    return {
+      showSearch: false
+    };
+  },
+  methods: {
+    colorize: function(value) {
+      return ansiConvertor
+        .toHtml(value)
+        .replace("&lt;mark&gt;", "<mark>")
+        .replace("&lt;/mark&gt;", "</mark>");
+    }
+  },
+  computed: {
+    ...mapState(["searchFilter", "settings"]),
+    filtered() {
+      const { searchFilter, messages } = this;
+      if (searchFilter) {
+        const isSmartCase = searchFilter === searchFilter.toLowerCase();
+        try {
+          const regex = isSmartCase ? new RegExp(searchFilter, "i") : new RegExp(searchFilter);
+          return messages
+            .filter(d => d.message.match(regex))
+            .map(d => ({
+              ...d,
+              message: d.message.replace(regex, "<mark>$&</mark>")
+            }));
+        } catch (e) {
+          if (e instanceof SyntaxError) {
+            console.info(`Ignoring SytaxError from search.`, e);
+            return messages;
+          }
+          throw e;
+        }
+      }
+      return messages;
+    }
+  },
+  filters: {
+    relativeTime(date) {
+      return formatRelative(date, new Date());
+    }
+  }
+};
+</script>
+<style scoped lang="scss">
+.events {
+  padding: 10px;
+  font-family: "Roboto Mono", monaco, monospace;
+
+  & > li {
+    word-wrap: break-word;
+    line-height: 130%;
+  }
+
+  &.small {
+    font-size: 60%;
+  }
+
+  &.medium {
+    font-size: 80%;
+  }
+
+  &.large {
+    font-size: 120%;
+  }
+}
+
+.date {
+  background-color: #262626;
+  color: #258ccd;
+}
+
+.text {
+  white-space: pre-wrap;
+}
+
+::v-deep mark {
+  border-radius: 2px;
+  background-color: #ffdd57;
+  animation: pops 0.2s ease-out;
+  display: inline-block;
+}
+
+@keyframes pops {
+  0% {
+    transform: scale(1.5);
+  }
+  100% {
+    transform: scale(1.05);
+  }
+}
+</style>

assets/components/LogViewerWithSource.vue

@@ -0,0 +1,19 @@
+<template lang="html">
+  <log-event-source :id="id" v-slot="eventSource">
+    <log-viewer :messages="eventSource.messages"></log-viewer>
+  </log-event-source>
+</template>
+
+<script>
+import LogEventSource from "./LogEventSource";
+import LogViewer from "./LogViewer";
+
+export default {
+  props: ["id"],
+  name: "LogViewerWithSource",
+  components: {
+    LogEventSource,
+    LogViewer
+  }
+};
+</script>

assets/components/MobileMenu.vue

@@ -0,0 +1,88 @@
+<template lang="html">
+  <aside>
+    <a
+      role="button"
+      class="navbar-burger burger is-white is-hidden-tablet is-pulled-right"
+      @click="showNav = !showNav"
+      :class="{ 'is-active': showNav }"
+    >
+      <span></span> <span></span> <span></span>
+    </a>
+    <h1 class="title has-text-warning is-marginless">Dozzle</h1>
+    <p class="menu-label is-hidden-mobile" :class="{ 'is-active': showNav }">Containers</p>
+    <ul class="menu-list is-hidden-mobile" :class="{ 'is-active': showNav }">
+      <li v-for="item in containers">
+        <router-link
+          :to="{ name: 'container', params: { id: item.id, name: item.name } }"
+          active-class="is-active"
+          :title="item.name"
+        >
+          <div class="hide-overflow">
+            {{ item.name }}
+          </div>
+        </router-link>
+      </li>
+    </ul>
+  </aside>
+</template>
+
+<script>
+import { mapActions, mapGetters, mapState } from "vuex";
+
+export default {
+  props: [],
+  name: "MobileMenu",
+  data() {
+    return {
+      showNav: false
+    };
+  },
+
+  computed: {
+    ...mapState(["containers"]),
+    ...mapGetters(["activeContainersById"])
+  },
+  methods: {
+    ...mapActions({})
+  },
+  watch: {
+    $route(to, from) {
+      this.showNav = false;
+    }
+  }
+};
+</script>
+<style scoped lang="scss">
+aside {
+  padding: 1em;
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  background: #222;
+  z-index: 2;
+  max-height: 100vh;
+  overflow: auto;
+
+  .menu-label {
+    margin-top: 1em;
+  }
+  .hide-overflow {
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    overflow: hidden;
+  }
+
+  .burger.is-white {
+    color: #fff;
+  }
+
+  .is-hidden-mobile.is-active {
+    display: block !important;
+  }
+
+  .navbar-burger {
+    height: 2.35rem;
+  }
+}
+</style>

assets/components/ScrollableView.vue

@@ -0,0 +1,98 @@
+<template lang="html">
+  <section :class="{ 'is-full-height-scrollable': scrollable }">
+    <header v-if="$slots.header">
+      <slot name="header"></slot>
+    </header>
+    <main ref="content" :data-scrolling="scrollable">
+      <slot></slot>
+      <div ref="scrollObserver"></div>
+    </main>
+    <div class="scroll-bar-notification">
+      <transition name="fade">
+        <button
+          class="button"
+          :class="hasMore ? 'is-warning' : 'is-primary'"
+          @click="scrollToBottom('instant')"
+          v-show="paused"
+        >
+          <ion-icon name="download"></ion-icon>
+        </button>
+      </transition>
+    </div>
+  </section>
+</template>
+
+<script>
+export default {
+  props: {
+    scrollable: {
+      type: Boolean,
+      default: true
+    }
+  },
+  name: "ScrollableView",
+  data() {
+    return {
+      paused: false,
+      hasMore: false
+    };
+  },
+  mounted() {
+    const { content } = this.$refs;
+    new MutationObserver(e => {
+      if (!this.paused) {
+        this.scrollToBottom("instant");
+      } else {
+        this.hasMore = true;
+      }
+    }).observe(content, { childList: true, subtree: true });
+
+    const intersectionObserver = new IntersectionObserver(
+      entries => (this.paused = entries[0].intersectionRatio == 0),
+      { threshholds: [0, 1], rootMargin: "80px 0px" }
+    );
+
+    intersectionObserver.observe(this.$refs.scrollObserver);
+  },
+
+  methods: {
+    scrollToBottom(behavior = "instant") {
+      this.$refs.scrollObserver.scrollIntoView({ behavior });
+      this.hasMore = false;
+    }
+  }
+};
+</script>
+<style scoped lang="scss">
+section {
+  display: flex;
+  flex-direction: column;
+
+  &.is-full-height-scrollable {
+    height: 100vh;
+  }
+
+  main {
+    flex: 1;
+    overflow: auto;
+  }
+
+  .scroll-bar-notification {
+    text-align: right;
+    margin-right: 65px;
+    button {
+      position: fixed;
+      bottom: 30px;
+    }
+  }
+
+  .fade-enter-active,
+  .fade-leave-active {
+    transition: opacity 0.15s ease-in;
+  }
+  .fade-enter,
+  .fade-leave-to {
+    opacity: 0;
+  }
+}
+</style>

assets/components/ScrollbarNotification.vue

@@ -1,71 +0,0 @@
-<template lang="html">
-  <transition name="fade">
-    <button
-      class="button scroll-notification"
-      :class="hasNew ? 'is-warning' : 'is-primary'"
-      @click="scrollToBottom"
-      v-show="visible"
-    >
-      <span class="icon large"> <i class="fas fa-chevron-down"></i> </span>
-    </button>
-  </transition>
-</template>
-
-<script>
-export default {
-  props: ["messages"],
-  data() {
-    return {
-      visible: false,
-      hasNew: false
-    };
-  },
-  mounted() {
-    document.addEventListener("scroll", this.onScroll, { passive: true });
-    setTimeout(() => this.scrollToBottom(), 500);
-  },
-  beforeDestroy() {
-    document.removeEventListener("scroll", this.onScroll);
-  },
-  methods: {
-    scrollToBottom() {
-      this.visible = false;
-      window.scrollTo(0, document.documentElement.scrollHeight || document.body.scrollHeight);
-    },
-    onScroll() {
-      const scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
-      const scrollBottom =
-        (document.documentElement.scrollHeight || document.body.scrollHeight) - document.documentElement.clientHeight;
-      const diff = Math.abs(scrollTop - scrollBottom);
-      this.visible = diff > 50;
-      if (!this.visible) {
-        this.hasNew = false;
-      }
-    }
-  },
-  watch: {
-    messages(newValue, oldValue) {
-      if (this.visible) {
-        this.hasNew = true;
-      } else {
-        this.scrollToBottom();
-      }
-    }
-  }
-};
-</script>
-<style scoped>
-.scroll-notification {
-  position: fixed;
-  right: 40px;
-  bottom: 30px;
-}
-.fade-enter-active,
-.fade-leave-active {
-  transition: opacity 0.15s ease-in;
-}
-.fade-enter,
-.fade-leave-to {
-  opacity: 0;
-}
-</style>

assets/components/Search.vue

@@ -0,0 +1,83 @@
+<template lang="html">
+  <div class="search columns is-gapless is-vcentered" v-show="showSearch" v-if="settings.search">
+    <div class="column">
+      <p class="control has-icons-left">
+        <input
+          class="input"
+          type="text"
+          placeholder="Find / RegEx"
+          ref="filter"
+          v-model="filter"
+          @keyup.esc="resetSearch()"
+        />
+        <span class="icon is-small is-left">
+          <ion-icon name="search"></ion-icon>
+        </span>
+      </p>
+    </div>
+    <div class="column is-1 has-text-centered">
+      <button class="delete is-medium" @click="resetSearch()"></button>
+    </div>
+  </div>
+</template>
+
+<script>
+import { mapActions, mapState } from "vuex";
+import hotkeys from "hotkeys-js";
+
+export default {
+  props: [],
+  name: "Search",
+  data() {
+    return {
+      showSearch: false
+    };
+  },
+  mounted() {
+    hotkeys("command+f, ctrl+f", (event, handler) => {
+      this.showSearch = true;
+      this.$nextTick(() => this.$refs.filter.focus() || this.$refs.filter.select());
+      event.preventDefault();
+    });
+    hotkeys("esc", (event, handler) => {
+      this.resetSearch();
+    });
+  },
+  methods: {
+    ...mapActions({
+      updateSearchFilter: "SET_SEARCH"
+    }),
+    resetSearch() {
+      this.showSearch = false;
+      this.filter = "";
+    }
+  },
+  computed: {
+    ...mapState(["searchFilter", "settings"]),
+    filter: {
+      get() {
+        return this.searchFilter;
+      },
+      set(value) {
+        this.updateSearchFilter(value);
+      }
+    }
+  }
+};
+</script>
+
+<style lang="scss" scoped>
+.search {
+  width: 350px;
+  position: fixed;
+  padding: 10px;
+  background: rgba(50, 50, 50, 0.9);
+  top: 0;
+  right: 0;
+  border-radius: 0 0 0 5px;
+  z-index: 10;
+}
+.delete {
+  margin-left: 1em;
+}
+</style>

assets/components/SideMenu.vue

@@ -0,0 +1,94 @@
+<template lang="html">
+  <aside>
+    <div class="columns is-marginless">
+      <div class="column">
+        <h1 class="title has-text-warning is-marginless">Dozzle</h1>
+      </div>
+      <div class="column is-narrow has-text-right is-hidden-mobile">
+        <router-link
+          :to="{ name: 'settings' }"
+          active-class="is-active"
+          class="button is-small is-rounded is-settings-control"
+        >
+          <span class="icon"><ion-icon name="settings" size="large"></ion-icon></span>
+        </router-link>
+      </div>
+    </div>
+    <p class="menu-label is-hidden-mobile">Containers</p>
+    <ul class="menu-list is-hidden-mobile">
+      <li v-for="item in containers">
+        <router-link
+          :to="{ name: 'container', params: { id: item.id, name: item.name } }"
+          active-class="is-active"
+          :title="item.name"
+        >
+          <div class="hide-overflow">
+            <span
+              @click.stop.prevent="appendActiveContainer(item)"
+              class="icon is-small will-append-container"
+              :class="{ 'is-active': activeContainersById[item.id] }"
+            >
+              <ion-icon name="ios-add-circle"></ion-icon>
+            </span>
+            {{ item.name }}
+          </div>
+        </router-link>
+      </li>
+    </ul>
+  </aside>
+</template>
+
+<script>
+import { mapActions, mapGetters, mapState } from "vuex";
+
+export default {
+  props: [],
+  name: "SideMenu",
+  data() {
+    return {};
+  },
+  computed: {
+    ...mapState(["containers", "activeContainers"]),
+    ...mapGetters(["activeContainersById"])
+  },
+  methods: {
+    ...mapActions({
+      appendActiveContainer: "APPEND_ACTIVE_CONTAINER"
+    })
+  }
+};
+</script>
+<style scoped lang="scss">
+aside {
+  padding: 1em;
+  height: 100vh;
+  overflow: auto;
+  position: fixed;
+  width: inherit;
+
+  .hide-overflow {
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    overflow: hidden;
+  }
+
+  .burger.is-white {
+    color: #fff;
+  }
+
+  .is-hidden-mobile.is-active {
+    display: block !important;
+  }
+}
+
+.will-append-container.icon {
+  transition: transform 0.2s ease-out;
+  &.is-active {
+    pointer-events: none;
+    color: #00d1b2;
+  }
+  .router-link-exact-active & {
+    visibility: hidden;
+  }
+}
+</style>

assets/index.html

@@ -3,17 +3,20 @@
   <head>
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <title>{{ .Hostname }} - Dozzle</title>
+    <title>Dozzle</title>
     <link href="https://fonts.googleapis.com/css?family=Roboto|Roboto+Mono|Gafata" rel="stylesheet" />
+    <link rel="manifest" href="manifest.webmanifest" />
     <link href="styles.scss" rel="stylesheet" />
+    <link rel="icon" href="favicon.ico" />
     <script>
       window["BASE_PATH"] = "{{ .Base }}";
-      window["SSL_ENABLED"] = "{{ .SSL }}".toLowerCase() === "true";
+      window["VERSION"] = "{{ .Version }}";
     </script>
-    <script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
+    <script type="module" src="https://unpkg.com/ionicons@4.5.10-0/dist/ionicons/ionicons.esm.js"></script>
+    <script nomodule="" src="https://unpkg.com/ionicons@4.5.10-0/dist/ionicons/ionicons.js"></script>
   </head>
 
-  <body class="is-dark">
+  <body>
     <div id="app"></div>
     <script src="main.js"></script>
   </body>

assets/main.js

@@ -1,10 +1,19 @@
 import Vue from "vue";
 import VueRouter from "vue-router";
+import Meta from "vue-meta";
+import { Dropdown, Switch } from "buefy";
+import store from "./store";
 import App from "./App.vue";
 import Container from "./pages/Container.vue";
+import Settings from "./pages/Settings.vue";
 import Index from "./pages/Index.vue";
 
 Vue.use(VueRouter);
+Vue.use(Meta);
+Vue.use(Dropdown);
+Vue.use(Switch);
+
+Vue.config.ignoredElements = [/^ion-/];
 
 const routes = [
   {
@@ -17,6 +26,11 @@ const routes = [
     component: Container,
     name: "container",
     props: true
+  },
+  {
+    path: "/settings",
+    component: Settings,
+    name: "settings"
   }
 ];
 
@@ -28,5 +42,6 @@ const router = new VueRouter({
 
 new Vue({
   router,
+  store,
   render: h => h(App)
 }).$mount("#app");

assets/manifest.webmanifest

@@ -0,0 +1,9 @@
+{
+  "name": "Dozzle Log Viewer",
+  "short_name": "Dozzle",
+  "theme_color": "#111111",
+  "background_color": "#111111",
+  "display": "standalone",
+  "scope": "/",
+  "start_url": "/"
+}

assets/pages/Container.vue

@@ -1,96 +1,53 @@
 <template lang="html">
-  <div class="is-fullheight">
-    <ul ref="events" class="events">
-      <li v-for="item in messages" class="event" :key="item.key">
-        <span class="date">{{ item.dateRelative }}</span> <span class="text">{{ item.message }}</span>
-      </li>
-    </ul>
-    <scrollbar-notification :messages="messages"></scrollbar-notification>
-  </div>
+  <scrollable-view :scrollable="activeContainers.length > 0">
+    <template v-slot:header v-if="activeContainers.length > 0">
+      <container-title :value="allContainersById[id].name"></container-title>
+    </template>
+    <log-viewer-with-source :id="id"></log-viewer-with-source>
+  </scrollable-view>
 </template>
 
 <script>
-import { formatRelative } from "date-fns";
-import ScrollbarNotification from "../components/ScrollbarNotification";
+import { mapActions, mapGetters, mapState } from "vuex";
 
-let ws = null;
-let nextId = 0;
-const parseMessage = data => {
-  const date = new Date(data.substring(0, 30));
-  const dateRelative = formatRelative(date, new Date());
-  const message = data.substring(30);
-  const key = nextId++;
-  return {
-    key,
-    date,
-    dateRelative,
-    message
-  };
-};
+import LogViewerWithSource from "../components/LogViewerWithSource";
+import ScrollableView from "../components/ScrollableView";
+import ContainerTitle from "../components/ContainerTitle";
 
 export default {
-  props: ["id"],
+  props: ["id", "name"],
   name: "Container",
   components: {
-    ScrollbarNotification
+    LogViewerWithSource,
+    ScrollableView,
+    ContainerTitle
   },
   data() {
     return {
-      messages: []
+      title: "loading"
     };
   },
-  created() {
-    this.loadLogs(this.id);
+  metaInfo() {
+    return {
+      title: this.title
+    };
   },
-  beforeDestroy() {
-    ws.close();
-    ws = null;
-  },
-  watch: {
-    id(newValue, oldValue) {
-      if (oldValue !== newValue) {
-        this.loadLogs(newValue);
-      }
+  mounted() {
+    if (this.allContainersById[this.id]) {
+      this.title = this.allContainersById[this.id].name;
     }
   },
-  methods: {
-    loadLogs(id) {
-      if (ws) {
-        ws.close();
-        ws = null;
-        this.messages = [];
-      }
-      const protocol = SSL_ENABLED ? "wss" : "ws";
-      ws = new WebSocket(`${protocol}://${window.location.host}${BASE_PATH}/api/logs?id=${this.id}`);
-      ws.onopen = e => console.log("Connection opened.");
-      ws.onclose = e => console.log("Connection closed.");
-      ws.onerror = e => console.error("Connection error: " + e.data);
-      ws.onmessage = e => {
-        const message = parseMessage(e.data);
-        this.messages.push(message);
-      };
+  computed: {
+    ...mapState(["activeContainers"]),
+    ...mapGetters(["allContainersById"])
+  },
+  watch: {
+    id() {
+      this.title = this.allContainersById[this.id].name;
+    },
+    allContainersById() {
+      this.title = this.allContainersById[this.id].name;
     }
   }
 };
 </script>
-<style scoped>
-.events {
-  padding: 10px;
-  font-family: "Roboto Mono", monaco, monospace;
-}
-
-.event {
-  font-size: 13px;
-  line-height: 16px;
-  word-wrap: break-word;
-}
-
-.date {
-  background-color: #262626;
-  color: #258ccd;
-}
-
-.is-fullheight {
-  min-height: 100vh;
-}
-</style>

assets/pages/Index.spec.js

@@ -0,0 +1,14 @@
+import { shallowMount } from "@vue/test-utils";
+import Index from "./Index";
+
+describe("<Index />", () => {
+  test("is a Vue instance", () => {
+    const wrapper = shallowMount(Index);
+    expect(wrapper.isVueInstance()).toBeTruthy();
+  });
+
+  test("renders correctly", () => {
+    const wrapper = shallowMount(Index);
+    expect(wrapper.element).toMatchSnapshot();
+  });
+});

assets/pages/Settings.vue

@@ -0,0 +1,138 @@
+<template lang="html">
+  <div>
+    <section class="section">
+      <div class="has-underline">
+        <h2 class="title is-4">About</h2>
+      </div>
+
+      <div>
+        You are using Dozzle <i>{{ currentVersion }}</i
+        >.
+        <span v-if="hasUpdate">
+          New version is available! Update to
+          <a :href="nextRelease.html_url" class="next-release">{{ nextRelease.name }}</a
+          >.
+        </span>
+      </div>
+    </section>
+    <section class="section">
+      <div class="has-underline">
+        <h2 class="title is-4">Display</h2>
+      </div>
+      <div class="item">
+        <b-switch v-model="search">
+          Enable searching with Dozzle using <code>command+f</code> or <code>ctrl+f</code>
+        </b-switch>
+      </div>
+
+      <div class="item">
+        <b-switch v-model="smallerScrollbars">
+          Use smaller scrollbars
+        </b-switch>
+      </div>
+
+      <div class="item">
+        <h2 class="title is-6 is-marginless">Font size</h2>
+        Modify the font size when viewing logs.
+
+        <b-dropdown v-model="size" aria-role="list" style="margin:-8px 10px 0">
+          <button class="button is-primary" type="button" slot="trigger">
+            <span class="is-capitalized">{{ size }}</span>
+            <span class="icon"><ion-icon name="ios-arrow-down"></ion-icon></span>
+          </button>
+          <b-dropdown-item :value="value" aria-role="listitem" v-for="value in ['small', 'medium', 'large']">
+            <div class="media">
+              <span class="icon">
+                <ion-icon name="checkmark" v-if="value == size"></ion-icon>
+              </span>
+              <div class="media-content">
+                <h3 class="is-capitalized">{{ value }}</h3>
+              </div>
+            </div>
+          </b-dropdown-item>
+        </b-dropdown>
+      </div>
+    </section>
+  </div>
+</template>
+
+<script>
+import gt from "semver/functions/gt";
+import valid from "semver/functions/valid";
+import { mapActions, mapState } from "vuex";
+
+export default {
+  props: [],
+  name: "Settings",
+  components: {},
+  data() {
+    return {
+      currentVersion: VERSION,
+      nextRelease: null,
+      hasUpdate: false
+    };
+  },
+  async created() {
+    const releases = await (await fetch("https://api.github.com/repos/amir20/dozzle/releases")).json();
+    this.hasUpdate = gt(releases[0].tag_name, this.currentVersion);
+    this.nextRelease = releases[0];
+  },
+  metaInfo() {
+    return {
+      title: "Settings"
+    };
+  },
+  methods: {
+    ...mapActions({
+      updateSetting: "UPDATE_SETTING"
+    })
+  },
+  computed: {
+    ...mapState(["settings"]),
+    ...["search", "size", "smallerScrollbars"].reduce((map, name) => {
+      map[name] = {
+        get() {
+          return this.settings[name];
+        },
+        set(value) {
+          this.updateSetting({ [name]: value });
+        }
+      };
+      return map;
+    }, {})
+  }
+};
+</script>
+<style lang="scss">
+.title {
+  color: #eee;
+}
+
+a.next-release {
+  text-decoration: underline;
+  color: #00d1b2;
+
+  &:hover {
+    text-decoration: none;
+  }
+}
+
+.section {
+  padding: 1rem 1.5rem;
+}
+
+.has-underline {
+  border-bottom: 1px solid #fff;
+  padding: 1em 0px;
+  margin-bottom: 1em;
+}
+
+.item {
+  padding: 1em 0;
+}
+
+code {
+  border-radius: 4px;
+  background-color: #444;
+}
+</style>

assets/pages/__snapshots__/Index.spec.js.snap

@@ -0,0 +1,21 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<Index /> renders correctly 1`] = `
+<div
+  class="hero is-fullheight is-dark"
+>
+  <div
+    class="hero-body"
+  >
+    <div
+      class="container has-text-centered"
+    >
+      <h1
+        class="title"
+      >
+        Please choose a container from the list to view the logs
+      </h1>
+    </div>
+  </div>
+</div>
+`;

assets/store/index.js

@@ -0,0 +1,86 @@
+import Vue from "vue";
+import Vuex from "vuex";
+import storage from "store/dist/store.modern";
+import { DEFAULT_SETTINGS, DOZZLE_SETTINGS_KEY } from "./settings";
+
+Vue.use(Vuex);
+
+const mql = window.matchMedia("(max-width: 770px)");
+
+storage.set(DOZZLE_SETTINGS_KEY, { ...DEFAULT_SETTINGS, ...storage.get(DOZZLE_SETTINGS_KEY) });
+
+const state = {
+  containers: [],
+  activeContainers: [],
+  searchFilter: null,
+  isMobile: mql.matches,
+  settings: storage.get(DOZZLE_SETTINGS_KEY)
+};
+
+const mutations = {
+  SET_CONTAINERS(state, containers) {
+    state.containers = containers;
+  },
+  ADD_ACTIVE_CONTAINERS(state, container) {
+    state.activeContainers.push(container);
+  },
+  REMOVE_ACTIVE_CONTAINER(state, container) {
+    state.activeContainers.splice(state.activeContainers.indexOf(container), 1);
+  },
+  SET_SEARCH(state, filter) {
+    state.searchFilter = filter;
+  },
+  SET_MOBILE_WIDTH(state, value) {
+    state.isMobile = value;
+  },
+  UPDATE_SETTINGS(state, newValues) {
+    state.settings = { ...state.settings, ...newValues };
+    storage.set(DOZZLE_SETTINGS_KEY, state.settings);
+  }
+};
+
+const actions = {
+  APPEND_ACTIVE_CONTAINER({ commit }, container) {
+    commit("ADD_ACTIVE_CONTAINERS", container);
+  },
+  REMOVE_ACTIVE_CONTAINER({ commit }, container) {
+    commit("REMOVE_ACTIVE_CONTAINER", container);
+  },
+  SET_SEARCH({ commit }, filter) {
+    commit("SET_SEARCH", filter);
+  },
+  async FETCH_CONTAINERS({ commit }) {
+    const containers = await (await fetch(`${BASE_PATH}/api/containers.json`)).json();
+    commit("SET_CONTAINERS", containers);
+  },
+  UPDATE_SETTING({ commit }, setting) {
+    commit("UPDATE_SETTINGS", setting);
+  }
+};
+const getters = {
+  activeContainersById(state) {
+    return state.activeContainers.reduce((map, obj) => {
+      map[obj.id] = obj;
+      return map;
+    }, {});
+  },
+  allContainersById(state) {
+    return state.containers.reduce((map, obj) => {
+      map[obj.id] = obj;
+      return map;
+    }, {});
+  }
+};
+
+const es = new EventSource(`${BASE_PATH}/api/events/stream`);
+es.addEventListener("containers-changed", e => setTimeout(() => store.dispatch("FETCH_CONTAINERS"), 1000), false);
+mql.addListener(e => store.commit("SET_MOBILE_WIDTH", e.matches));
+
+const store = new Vuex.Store({
+  state,
+  getters,
+  actions,
+  mutations
+});
+
+export default store;

assets/store/settings.js

@@ -0,0 +1,7 @@
+export const DOZZLE_SETTINGS_KEY = "DOZZLE_SETTINGS";
+export const DEFAULT_SETTINGS = {
+  search: true,
+  size: "medium",
+  menuWidth: 15,
+  smallerScrollbars: false
+};

assets/styles.scss

@@ -3,18 +3,72 @@
 $menu-item-active-background-color: hsl(171, 100%, 41%);
 $menu-item-color: hsl(0, 6%, 87%);
 
-@import "../node_modules/bulma/bulma.sass";
-@import "../node_modules/bulma-tooltip/src/sass";
-
-.is-dark {
-    color: #ddd;
-    background-color: #111;
-}
+@import "~bulma";
+@import "../node_modules/splitpanes/dist/splitpanes.css";
+@import "~buefy/src/scss/utils/_all";
+@import "~buefy/src/scss/components/_dropdown";
+@import "~buefy/src/scss/components/_switch";
 
 body {
-    font-family: "Roboto", sans-serif;
+  font-family: "Roboto", sans-serif;
+  color: #ddd;
+  background-color: #111;
 }
 
 h1.title {
-    font-family: "Gafata", sans-serif;
+  font-family: "Gafata", sans-serif;
+}
+
+html {
+  overflow-x: unset;
+  overflow-y: unset;
+}
+
+html.has-custom-scrollbars {
+  ::-webkit-scrollbar {
+    width: 8px;
+    display: content;
+  }
+
+  ::-webkit-scrollbar-thumb {
+    background-color: rgba(128, 128, 128, 0.33);
+    outline: 1px solid slategrey;
+    border-radius: 4px;
+  }
+
+  ::-webkit-scrollbar-thumb:active {
+    background-color: #777;
+  }
+
+  ::-webkit-scrollbar-track {
+    background-color: transparent;
+  }
+
+  ::-webkit-scrollbar-track:hover {
+    background-color: rgba(64, 64, 64, 0.33);
+  }
+
+  section main {
+    scrollbar-color: #353535 transparent;
+    scrollbar-width: thin;
+  }
+}
+
+.is-settings-control {
+  
+  background: rgba(0, 0, 0, 0.4);
+  color: #fff;
+  border-color: transparent;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  &:hover {
+    border-color: rgb(255, 221, 87) !important;
+    background: rgba(0, 0, 0, 0.8) !important;
+    color: #fff !important;
+  }
+
+  &:focus {
+    box-shadow: none !important;
+    color: unset;
+    border-color: transparent;
+  }
 }

docker/client.go

@@ -0,0 +1,227 @@
+package docker
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/events"
+	"github.com/docker/docker/api/types/filters"
+	"github.com/docker/docker/client"
+	log "github.com/sirupsen/logrus"
+)
+
+type dockerClient struct {
+	cli     dockerProxy
+	filters filters.Args
+}
+
+type dockerProxy interface {
+	ContainerList(context.Context, types.ContainerListOptions) ([]types.Container, error)
+	ContainerLogs(context.Context, string, types.ContainerLogsOptions) (io.ReadCloser, error)
+	Events(context.Context, types.EventsOptions) (<-chan events.Message, <-chan error)
+	ContainerInspect(ctx context.Context, containerID string) (types.ContainerJSON, error)
+}
+
+// Client is a proxy around the docker client
+type Client interface {
+	ListContainers(showAll bool) ([]Container, error)
+	FindContainer(string) (Container, error)
+	ContainerLogs(context.Context, string, int) (<-chan string, <-chan error)
+	Events(context.Context) (<-chan events.Message, <-chan error)
+	ContainerLogsBetweenDates(context.Context, string, time.Time, time.Time) ([]string, error)
+}
+
+// NewClient creates a new instance of Client
+func NewClient() Client {
+	return NewClientWithFilters(map[string]string{})
+}
+
+// NewClientWithFilters creates a new instance of Client with docker filters
+func NewClientWithFilters(f map[string]string) Client {
+	filterArgs := filters.NewArgs()
+	for k, v := range f {
+		filterArgs.Add(k, v)
+	}
+
+	log.Debugf("filterArgs = %v", filterArgs)
+
+	cli, err := client.NewClientWithOpts(client.FromEnv)
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return &dockerClient{cli, filterArgs}
+}
+
+func (d *dockerClient) FindContainer(id string) (Container, error) {
+	var container Container
+	containers, err := d.ListContainers(true)
+	if err != nil {
+		return container, err
+	}
+
+	found := false
+	for _, c := range containers {
+		if c.ID == id {
+			container = c
+			found = true
+			break
+		}
+	}
+	if found == false {
+		return container, fmt.Errorf("Unable to find container with id: %s", id)
+	}
+
+	return container, nil
+}
+
+func (d *dockerClient) ListContainers(showAll bool) ([]Container, error) {
+	containerListOptions := types.ContainerListOptions{
+		Filters: d.filters,
+		All:     showAll,
+	}
+	list, err := d.cli.ContainerList(context.Background(), containerListOptions)
+	if err != nil {
+		return nil, err
+	}
+
+	var containers []Container
+	for _, c := range list {
+
+		container := Container{
+			ID:      c.ID[:12],
+			Names:   c.Names,
+			Name:    strings.TrimPrefix(c.Names[0], "/"),
+			Image:   c.Image,
+			ImageID: c.ImageID,
+			Command: c.Command,
+			Created: c.Created,
+			State:   c.State,
+			Status:  c.Status,
+		}
+		containers = append(containers, container)
+	}
+
+	sort.Slice(containers, func(i, j int) bool {
+		return containers[i].Name < containers[j].Name
+	})
+
+	if containers == nil {
+		containers = []Container{}
+	}
+
+	return containers, nil
+}
+
+func logReader(reader io.ReadCloser, tty bool) func() (string, error) {
+	if tty {
+		scanner := bufio.NewScanner(reader)
+		return func() (string, error) {
+			if scanner.Scan() {
+				return scanner.Text(), nil
+			}
+
+			return "", io.EOF
+		}
+	}
+	hdr := make([]byte, 8)
+	var buffer bytes.Buffer
+	return func() (string, error) {
+		buffer.Reset()
+		_, err := reader.Read(hdr)
+		if err != nil {
+			return "", err
+		}
+		count := binary.BigEndian.Uint32(hdr[4:])
+		_, err = io.CopyN(&buffer, reader, int64(count))
+		if err != nil {
+			return "", err
+		}
+		return strings.TrimSpace(buffer.String()), nil
+	}
+}
+
+func (d *dockerClient) ContainerLogs(ctx context.Context, id string, tailSize int) (<-chan string, <-chan error) {
+	options := types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true, Follow: true, Tail: strconv.Itoa(tailSize), Timestamps: true}
+	reader, err := d.cli.ContainerLogs(ctx, id, options)
+	errChannel := make(chan error, 1)
+
+	if err != nil {
+		errChannel <- err
+		close(errChannel)
+		return nil, errChannel
+	}
+
+	messages := make(chan string)
+	go func() {
+		<-ctx.Done()
+		reader.Close()
+	}()
+
+	containerJSON, _ := d.cli.ContainerInspect(ctx, id)
+
+	go func() {
+		defer close(messages)
+		defer close(errChannel)
+		defer reader.Close()
+		nextEntry := logReader(reader, containerJSON.Config.Tty)
+		for {
+			line, err := nextEntry()
+			if err != nil {
+				errChannel <- err
+				break
+			}
+			select {
+			case messages <- line:
+			case <-ctx.Done():
+			}
+		}
+	}()
+
+	return messages, errChannel
+}
+
+func (d *dockerClient) Events(ctx context.Context) (<-chan events.Message, <-chan error) {
+	return d.cli.Events(ctx, types.EventsOptions{})
+}
+
+func (d *dockerClient) ContainerLogsBetweenDates(ctx context.Context, id string, from time.Time, to time.Time) ([]string, error) {
+	options := types.ContainerLogsOptions{
+		ShowStdout: true,
+		ShowStderr: true,
+		Timestamps: true,
+		Since:      strconv.FormatInt(from.Unix(), 10),
+		Until:      strconv.FormatInt(to.Unix(), 10),
+	}
+	reader, _ := d.cli.ContainerLogs(ctx, id, options)
+	defer reader.Close()
+
+	containerJSON, _ := d.cli.ContainerInspect(ctx, id)
+
+	nextEntry := logReader(reader, containerJSON.Config.Tty)
+
+	var messages []string
+	for {
+		line, err := nextEntry()
+		if err != nil {
+			if err == io.EOF {
+				break
+			} else {
+				return nil, err
+			}
+		}
+		messages = append(messages, line)
+	}
+
+	return messages, nil
+}

docker/client_test.go

@@ -0,0 +1,230 @@
+package docker
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"errors"
+	"io"
+	"io/ioutil"
+	"testing"
+
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/filters"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+type mockedProxy struct {
+	mock.Mock
+	dockerProxy
+}
+
+func (m *mockedProxy) ContainerList(context.Context, types.ContainerListOptions) ([]types.Container, error) {
+	args := m.Called()
+	containers, ok := args.Get(0).([]types.Container)
+	if !ok && args.Get(0) != nil {
+		panic("containers is not of type []types.Container")
+	}
+	return containers, args.Error(1)
+
+}
+
+func (m *mockedProxy) ContainerLogs(ctx context.Context, id string, options types.ContainerLogsOptions) (io.ReadCloser, error) {
+	args := m.Called(ctx, id, options)
+	reader, ok := args.Get(0).(io.ReadCloser)
+	if !ok && args.Get(0) != nil {
+		panic("reader is not of type io.ReadCloser")
+	}
+	return reader, args.Error(1)
+}
+func (m *mockedProxy) ContainerInspect(ctx context.Context, containerID string) (types.ContainerJSON, error) {
+	args := m.Called(ctx, containerID)
+	json, ok := args.Get(0).(types.ContainerJSON)
+	if !ok && args.Get(0) != nil {
+		panic("proxies return value is not of type types.ContainerJSON")
+	}
+
+	return json, args.Error(1)
+}
+
+func Test_dockerClient_ListContainers_null(t *testing.T) {
+	proxy := new(mockedProxy)
+	proxy.On("ContainerList", mock.Anything, mock.Anything).Return(nil, nil)
+	client := &dockerClient{proxy, filters.NewArgs()}
+
+	list, err := client.ListContainers(true)
+	assert.Empty(t, list, "list should be empty")
+	require.NoError(t, err, "error should not return an error.")
+
+	proxy.AssertExpectations(t)
+}
+
+func Test_dockerClient_ListContainers_error(t *testing.T) {
+	proxy := new(mockedProxy)
+	proxy.On("ContainerList", mock.Anything, mock.Anything).Return(nil, errors.New("test"))
+	client := &dockerClient{proxy, filters.NewArgs()}
+
+	list, err := client.ListContainers(true)
+	assert.Nil(t, list, "list should be nil")
+	require.Error(t, err, "test.")
+
+	proxy.AssertExpectations(t)
+}
+
+func Test_dockerClient_ListContainers_happy(t *testing.T) {
+	containers := []types.Container{
+		{
+			ID:    "abcdefghijklmnopqrst",
+			Names: []string{"/z_test_container"},
+		},
+		{
+			ID:    "1234567890_abcxyzdef",
+			Names: []string{"/a_test_container"},
+		},
+	}
+
+	proxy := new(mockedProxy)
+	proxy.On("ContainerList", mock.Anything, mock.Anything).Return(containers, nil)
+	client := &dockerClient{proxy, filters.NewArgs()}
+
+	list, err := client.ListContainers(true)
+	require.NoError(t, err, "error should not return an error.")
+
+	assert.Equal(t, list, []Container{
+		{
+			ID:    "1234567890_a",
+			Name:  "a_test_container",
+			Names: []string{"/a_test_container"},
+		},
+		{
+			ID:    "abcdefghijkl",
+			Name:  "z_test_container",
+			Names: []string{"/z_test_container"},
+		},
+	})
+
+	proxy.AssertExpectations(t)
+}
+
+func Test_dockerClient_ContainerLogs_happy(t *testing.T) {
+	id := "123456"
+
+	proxy := new(mockedProxy)
+	expected := "INFO Testing logs..."
+	b := make([]byte, 8)
+
+	binary.BigEndian.PutUint32(b[4:], uint32(len(expected)))
+	b = append(b, []byte(expected)...)
+
+	reader := ioutil.NopCloser(bytes.NewReader(b))
+	options := types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true, Follow: true, Tail: "300", Timestamps: true}
+	proxy.On("ContainerLogs", mock.Anything, id, options).Return(reader, nil)
+
+	json := types.ContainerJSON{Config: &container.Config{Tty: false}}
+	proxy.On("ContainerInspect", mock.Anything, id).Return(json, nil)
+
+	client := &dockerClient{proxy, filters.NewArgs()}
+	messages, _ := client.ContainerLogs(context.Background(), id, 300)
+
+	actual, _ := <-messages
+	assert.Equal(t, expected, actual, "message doesn't match expected")
+
+	_, ok := <-messages
+	assert.False(t, ok, "channel should have been closed")
+	proxy.AssertExpectations(t)
+}
+
+func Test_dockerClient_ContainerLogs_happy_with_tty(t *testing.T) {
+	id := "123456"
+
+	proxy := new(mockedProxy)
+	expected := "INFO Testing logs..."
+
+	reader := ioutil.NopCloser(bytes.NewReader([]byte(expected)))
+	options := types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true, Follow: true, Tail: "300", Timestamps: true}
+	proxy.On("ContainerLogs", mock.Anything, id, options).Return(reader, nil)
+
+	json := types.ContainerJSON{Config: &container.Config{Tty: true}}
+	proxy.On("ContainerInspect", mock.Anything, id).Return(json, nil)
+
+	client := &dockerClient{proxy, filters.NewArgs()}
+	messages, _ := client.ContainerLogs(context.Background(), id, 300)
+
+	actual, _ := <-messages
+	assert.Equal(t, expected, actual, "message doesn't match expected")
+
+	_, ok := <-messages
+	assert.False(t, ok, "channel should have been closed")
+	proxy.AssertExpectations(t)
+}
+
+func Test_dockerClient_ContainerLogs_error(t *testing.T) {
+	id := "123456"
+	proxy := new(mockedProxy)
+
+	proxy.On("ContainerLogs", mock.Anything, id, mock.Anything).Return(nil, errors.New("test"))
+
+	client := &dockerClient{proxy, filters.NewArgs()}
+
+	messages, err := client.ContainerLogs(context.Background(), id, 300)
+
+	assert.Nil(t, messages, "messages should be nil")
+
+	e, _ := <-err
+	assert.Error(t, e, "error should have been returned")
+	_, ok := <-err
+	assert.False(t, ok, "error channel should have been closed")
+	proxy.AssertExpectations(t)
+}
+
+func Test_dockerClient_FindContainer_happy(t *testing.T) {
+	containers := []types.Container{
+		{
+			ID:    "abcdefghijklmnopqrst",
+			Names: []string{"/z_test_container"},
+		},
+		{
+			ID:    "1234567890_abcxyzdef",
+			Names: []string{"/a_test_container"},
+		},
+	}
+
+	proxy := new(mockedProxy)
+	proxy.On("ContainerList", mock.Anything, mock.Anything).Return(containers, nil)
+	client := &dockerClient{proxy, filters.NewArgs()}
+
+	container, err := client.FindContainer("abcdefghijkl")
+	require.NoError(t, err, "error should not be thrown")
+
+	assert.Equal(t, container, Container{
+		ID:    "abcdefghijkl",
+		Name:  "z_test_container",
+		Names: []string{"/z_test_container"},
+	})
+
+	proxy.AssertExpectations(t)
+}
+func Test_dockerClient_FindContainer_error(t *testing.T) {
+	containers := []types.Container{
+		{
+			ID:    "abcdefghijklmnopqrst",
+			Names: []string{"/z_test_container"},
+		},
+		{
+			ID:    "1234567890_abcxyzdef",
+			Names: []string{"/a_test_container"},
+		},
+	}
+
+	proxy := new(mockedProxy)
+	proxy.On("ContainerList", mock.Anything, mock.Anything).Return(containers, nil)
+	client := &dockerClient{proxy, filters.NewArgs()}
+
+	_, err := client.FindContainer("not_valid")
+	require.Error(t, err, "error should be thrown")
+
+	proxy.AssertExpectations(t)
+}

docker/types.go

@@ -0,0 +1,14 @@
+package docker
+
+// Container represents an internal representation of docker containers
+type Container struct {
+	ID      string   `json:"id"`
+	Names   []string `json:"names"`
+	Name    string   `json:"name"`
+	Image   string   `json:"image"`
+	ImageID string   `json:"imageId"`
+	Command string   `json:"command"`
+	Created int64    `json:"created"`
+	State   string   `json:"state"`
+	Status  string   `json:"status"`
+}

go.mod

@@ -0,0 +1,55 @@
+module github.com/amir20/dozzle
+
+replace github.com/docker/docker v0.0.0-20190827232753-32688a47f341 => github.com/docker/engine v0.0.0-20190827232753-32688a47f341
+
+// github.com/docker/engine v19.06.1-ce
+replace github.com/docker/docker => github.com/docker/engine v0.0.0-20190827232753-32688a47f341
+
+// github.com/docker/distribution master
+// a proper tagged release is expected in early fall(September 2018)
+// see; https://github.com/docker/distribution/issues/2693
+replace github.com/docker/distribution => github.com/docker/distribution v0.0.0-20190711223531-1fb7fffdb266
+
+require (
+	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
+	github.com/Microsoft/go-winio v0.4.14 // indirect
+	github.com/beme/abide v0.0.0-20190723115211-635a09831760
+	github.com/containerd/containerd v1.3.3 // indirect
+	github.com/docker/distribution v2.7.1+incompatible // indirect
+	github.com/docker/docker v0.0.0-20190827232753-32688a47f341
+	github.com/docker/go-connections v0.4.0 // indirect
+	github.com/docker/go-units v0.4.0 // indirect
+	github.com/gobuffalo/envy v1.9.0 // indirect
+	github.com/gobuffalo/packd v1.0.0 // indirect
+	github.com/gobuffalo/packr v1.30.1
+	github.com/gogo/protobuf v1.3.1 // indirect
+	github.com/golang/protobuf v1.3.4 // indirect
+	github.com/google/go-cmp v0.3.1 // indirect
+	github.com/gorilla/mux v1.7.4
+	github.com/magiconair/properties v1.8.1
+	github.com/morikuni/aec v0.0.0-20170113033406-39771216ff4c // indirect
+	github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
+	github.com/opencontainers/image-spec v1.0.1 // indirect
+	github.com/pelletier/go-toml v1.6.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/rogpeppe/go-internal v1.5.2 // indirect
+	github.com/sergi/go-diff v1.0.0 // indirect
+	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/afero v1.2.2 // indirect
+	github.com/spf13/cast v1.3.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5
+	github.com/spf13/viper v1.6.2
+	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/stretchr/testify v1.5.1
+	golang.org/x/net v0.0.0-20200226121028-0de0cce0169b // indirect
+	golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae // indirect
+	golang.org/x/text v0.3.2 // indirect
+	google.golang.org/genproto v0.0.0-20200226201735-46b91f19d98c // indirect
+	google.golang.org/grpc v1.27.1 // indirect
+	gopkg.in/ini.v1 v1.52.0 // indirect
+	gopkg.in/yaml.v2 v2.2.8 // indirect
+	gotest.tools v2.2.0+incompatible // indirect
+)
+
+go 1.14

go.sum

@@ -0,0 +1,350 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/Azure/azure-sdk-for-go v16.2.1+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
+github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
+github.com/Azure/go-autorest v10.8.1+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Microsoft/go-winio v0.4.14 h1:+hMXMk01us9KgxGb7ftKQt2Xpf5hH/yky+TDA+qxleU=
+github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d/go.mod h1:HI8ITrYtUY+O+ZhtlqUnD8+KwNPOyugEhfP9fdUIaEQ=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
+github.com/aws/aws-sdk-go v1.15.11/go.mod h1:mFuSZ37Z9YOHbQEwBWztmVzqXrEkub65tZoCYDt7FT0=
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main.go

@@ -1,146 +1,290 @@
 package main
 
 import (
-    "context"
-    "encoding/binary"
-    "encoding/json"
-    "fmt"
-    "html/template"
-    "log"
-    "net/http"
-    "os"
-    "strings"
+	"context"
+	"encoding/json"
+	"fmt"
+	"html/template"
+	"net/http"
+	"net/url"
+	"os"
+	"os/signal"
+	"runtime"
+	"strings"
+	"time"
 
-    "github.com/docker/docker/api/types"
-    "github.com/docker/docker/client"
-    "github.com/gobuffalo/packr"
-    "github.com/gorilla/mux"
-    "github.com/gorilla/websocket"
-    flag "github.com/spf13/pflag"
+	"github.com/amir20/dozzle/docker"
+	"github.com/gobuffalo/packr"
+	"github.com/gorilla/mux"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
 )
 
 var (
-    cli      *client.Client
-    addr     = ""
-    ssl      = false
-    base     = "/"
-    upgrader = websocket.Upgrader{}
-    version  = "dev"
-    commit   = "none"
-    date     = "unknown"
+	addr     = ""
+	base     = ""
+	level    = ""
+	showAll  = false
+	tailSize = 300
+	filters  map[string]string
+	version  = "dev"
+	commit   = "none"
+	date     = "unknown"
 )
 
-func init() {
-    flag.StringVar(&addr, "addr", ":8080", "http service address")
-    flag.StringVar(&base, "base", "/", "base address of the application to mount")
-    flag.BoolVarP(&ssl, "ssl", "s", false, "Uses websockets over ssl if enabled")
+type handler struct {
+	client  docker.Client
+	showAll bool
+	box     packr.Box
+}
 
-    var err error
-    cli, err = client.NewClientWithOpts(client.FromEnv)
-    if err != nil {
-        log.Fatal(err)
-    }
-    flag.Parse()
+func init() {
+	pflag.String("addr", ":8080", "http service address")
+	pflag.String("base", "/", "base address of the application to mount")
+	pflag.Bool("showAll", false, "show all containers, even stopped")
+	pflag.String("level", "info", "logging level")
+	pflag.Int("tailSize", 300, "Tail size to use for initial container logs")
+	pflag.StringToStringVar(&filters, "filter", map[string]string{}, "Container filters to use for showing logs")
+	pflag.Parse()
+
+	viper.AutomaticEnv()
+	viper.SetEnvPrefix("DOZZLE")
+	viper.BindPFlags(pflag.CommandLine)
+
+	addr = viper.GetString("addr")
+	base = viper.GetString("base")
+	level = viper.GetString("level")
+	tailSize = viper.GetInt("tailSize")
+	showAll = viper.GetBool("showAll")
+
+	// Until https://github.com/spf13/viper/issues/608 is fixed. We have to use this hacky way.
+	// filters = viper.GetStringSlice("filter")
+	if value, ok := os.LookupEnv("DOZZLE_FILTER"); ok {
+		log.Infof("Parsing %s", value)
+		urlValues, err := url.ParseQuery(strings.ReplaceAll(value, ",", "&"))
+		if err != nil {
+			log.Fatal(err)
+		}
+		filters = map[string]string{}
+		for k, v := range urlValues {
+			filters[k] = v[0]
+		}
+	}
+
+	l, _ := log.ParseLevel(level)
+	log.SetLevel(l)
+
+	log.SetFormatter(&log.TextFormatter{
+		DisableTimestamp:       true,
+		DisableLevelTruncation: true,
+	})
+}
+
+func createRoutes(base string, h *handler) *mux.Router {
+	r := mux.NewRouter()
+	if base != "/" {
+		r.HandleFunc(base, http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+			http.Redirect(w, req, base+"/", http.StatusMovedPermanently)
+		}))
+	}
+	s := r.PathPrefix(base).Subrouter()
+	s.HandleFunc("/api/containers.json", h.listContainers)
+	s.HandleFunc("/api/logs/stream", h.streamLogs)
+	s.HandleFunc("/api/logs", h.fetchLogsBetweenDates)
+	s.HandleFunc("/api/events/stream", h.streamEvents)
+	s.HandleFunc("/version", h.version)
+	s.PathPrefix("/").Handler(http.StripPrefix(base, http.HandlerFunc(h.index)))
+	return r
 }
 
 func main() {
-    r := mux.NewRouter()
+	log.Infof("Dozzle version %s", version)
+	dockerClient := docker.NewClientWithFilters(filters)
+	_, err := dockerClient.ListContainers(true)
 
-    if base != "/" {
-        r.HandleFunc(base, http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-            http.Redirect(w, req, base+"/", http.StatusMovedPermanently)
-        }))
-    }
+	if err != nil {
+		log.Fatalf("Could not connect to Docker Engine: %v", err)
+	}
 
-    s := r.PathPrefix(base).Subrouter()
-    box := packr.NewBox("./static")
+	box := packr.NewBox("./static")
+	r := createRoutes(base, &handler{
+		client:  dockerClient,
+		showAll: showAll,
+		box:     box,
+	})
+	srv := &http.Server{Addr: addr, Handler: r}
 
-    s.HandleFunc("/api/containers.json", listContainers)
-    s.HandleFunc("/api/logs", logs)
-    s.HandleFunc("/version", versionHandler)
-    s.PathPrefix("/").Handler(http.StripPrefix(base, http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-        fileServer := http.FileServer(box)
-        if box.Has(req.URL.Path) && req.URL.Path != "" && req.URL.Path != "/" {
-            fileServer.ServeHTTP(w, req)
-        } else {
-            handleIndex(box, w)
-        }
-    })))
+	go func() {
+		log.Infof("Accepting connections on %s", srv.Addr)
+		if err := srv.ListenAndServe(); err != nil {
+			log.Fatal(err)
+		}
+	}()
 
-    log.Fatal(http.ListenAndServe(addr, r))
+	c := make(chan os.Signal, 1)
+	signal.Notify(c, os.Interrupt)
+	signal.Notify(c, os.Kill)
+	<-c
+	log.Infof("Shutting down...")
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	srv.Shutdown(ctx)
+	os.Exit(0)
 }
 
-func versionHandler(w http.ResponseWriter, r *http.Request) {
-    fmt.Fprintln(w, version)
-    fmt.Fprintln(w, commit)
-    fmt.Fprintln(w, date)
+func (h *handler) index(w http.ResponseWriter, req *http.Request) {
+	fileServer := http.FileServer(h.box)
+	if h.box.Has(req.URL.Path) && req.URL.Path != "" && req.URL.Path != "/" {
+		fileServer.ServeHTTP(w, req)
+	} else {
+		text, err := h.box.FindString("index.html")
+		if err != nil {
+			panic(err)
+		}
+		text = strings.Replace(text, "__BASE__", "{{ .Base }}", -1)
+		tmpl, err := template.New("index.html").Parse(text)
+		if err != nil {
+			panic(err)
+		}
+
+		path := ""
+		if base != "/" {
+			path = base
+		}
+
+		data := struct {
+			Base    string
+			Version string
+		}{path, version}
+		err = tmpl.Execute(w, data)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+	}
 }
 
-func listContainers(w http.ResponseWriter, r *http.Request) {
-    containers, err := cli.ContainerList(context.Background(), types.ContainerListOptions{})
-    if err != nil {
-        log.Fatal(err)
-    }
-    json.NewEncoder(w).Encode(containers)
+func (h *handler) listContainers(w http.ResponseWriter, r *http.Request) {
+	containers, err := h.client.ListContainers(h.showAll)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	err = json.NewEncoder(w).Encode(containers)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
 }
 
-func handleIndex(box packr.Box, w http.ResponseWriter) {
-    text, _ := box.FindString("index.html")
-    text = strings.Replace(text, "__BASE__", "{{ .Base }}", -1)
-    tmpl, err := template.New("index.html").Parse(text)
-    if err != nil {
-        panic(err)
-    }
+func (h *handler) fetchLogsBetweenDates(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/plain; charset=UTF-8")
 
-    path := ""
-    if base != "/" {
-        path = base
-    }
-    hostname, _ := os.Hostname()
-    data := struct {
-        Base     string
-        SSL      bool
-        Hostname string
-    }{path, ssl, hostname}
-    err = tmpl.Execute(w, data)
-    if err != nil {
-        panic(err)
-    }
+	from, _ := time.Parse(time.RFC3339, r.URL.Query().Get("from"))
+	to, _ := time.Parse(time.RFC3339, r.URL.Query().Get("to"))
+	id := r.URL.Query().Get("id")
+
+	messages, _ := h.client.ContainerLogsBetweenDates(r.Context(), id, from, to)
+
+	for _, m := range messages {
+		fmt.Fprintln(w, m)
+	}
 }
 
-func logs(w http.ResponseWriter, r *http.Request) {
-    id := r.URL.Query().Get("id")
-    c, err := upgrader.Upgrade(w, r, nil)
-    if err != nil {
-        log.Fatal(err)
-        return
-    }
-    defer c.Close()
+func (h *handler) streamLogs(w http.ResponseWriter, r *http.Request) {
+	id := r.URL.Query().Get("id")
+	if id == "" {
+		http.Error(w, "id is required", http.StatusBadRequest)
+		return
+	}
 
-    options := types.ContainerLogsOptions{ShowStdout: true, ShowStderr: true, Follow: true, Tail: "300", Timestamps: true}
-    reader, err := cli.ContainerLogs(context.Background(), id, options)
-    defer reader.Close()
-    if err != nil {
-        log.Fatal(err)
-    }
+	f, ok := w.(http.Flusher)
+	if !ok {
+		http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
+		return
+	}
 
-    hdr := make([]byte, 8)
-    content := make([]byte, 1024, 1024*1024)
-    for {
-        _, err := reader.Read(hdr)
-        if err != nil {
-            log.Panicln(err)
-        }
-        count := binary.BigEndian.Uint32(hdr[4:])
-        n, err := reader.Read(content[:count])
-        if err != nil {
-            log.Println(err)
-            break
-        }
-        err = c.WriteMessage(websocket.TextMessage, content[:n])
-        if err != nil {
-            log.Println(err)
-            break
-        }
-    }
+	container, e := h.client.FindContainer(id)
+	if e != nil {
+		http.Error(w, e.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	messages, err := h.client.ContainerLogs(r.Context(), container.ID, tailSize)
+
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+	w.Header().Set("Transfer-Encoding", "chunked")
+
+	log.Debugf("Starting to stream logs for %s", id)
+Loop:
+	for {
+		select {
+		case message, ok := <-messages:
+			if !ok {
+				break Loop
+			}
+			_, e := fmt.Fprintf(w, "data: %s\n\n", message)
+			if e != nil {
+				log.Debugf("Error while writing to log stream: %v", e)
+				break Loop
+			}
+			f.Flush()
+		case e := <-err:
+			log.Debugf("Error while reading from log stream: %v", e)
+			break Loop
+		}
+	}
+
+	log.WithField("NumGoroutine", runtime.NumGoroutine()).Debug("runtime stats")
+}
+
+func (h *handler) streamEvents(w http.ResponseWriter, r *http.Request) {
+	f, ok := w.(http.Flusher)
+	if !ok {
+		http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+	w.Header().Set("Transfer-Encoding", "chunked")
+
+	ctx := r.Context()
+	messages, err := h.client.Events(ctx)
+
+Loop:
+	for {
+		select {
+		case message, ok := <-messages:
+			if !ok {
+				break Loop
+			}
+			switch message.Action {
+			case "connect", "disconnect", "create", "destroy", "start", "stop":
+				log.Debugf("Triggering docker event: %v", message.Action)
+				_, err := fmt.Fprintf(w, "event: containers-changed\ndata: %s\n\n", message.Action)
+
+				if err != nil {
+					log.Debugf("Error while writing to event stream: %v", err)
+					break
+				}
+				f.Flush()
+			default:
+				log.Debugf("Ignoring docker event: %v", message.Action)
+			}
+		case <-ctx.Done():
+			break Loop
+		case <-err:
+			break Loop
+		}
+	}
+}
+
+func (h *handler) version(w http.ResponseWriter, r *http.Request) {
+	fmt.Fprintln(w, version)
+	fmt.Fprintln(w, commit)
+	fmt.Fprintln(w, date)
 }

main_test.go

@@ -0,0 +1,316 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+
+	"github.com/magiconair/properties/assert"
+
+	"github.com/amir20/dozzle/docker"
+	"github.com/beme/abide"
+	"github.com/docker/docker/api/types/events"
+	"github.com/gobuffalo/packr"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+type MockedClient struct {
+	mock.Mock
+	docker.Client
+}
+
+func (m *MockedClient) FindContainer(id string) (docker.Container, error) {
+	args := m.Called(id)
+	container, ok := args.Get(0).(docker.Container)
+	if !ok {
+		panic("containers is not of type docker.Container")
+	}
+	return container, args.Error(1)
+}
+
+func (m *MockedClient) ListContainers(showAll bool) ([]docker.Container, error) {
+	args := m.Called()
+	containers, ok := args.Get(0).([]docker.Container)
+	if !ok {
+		panic("containers is not of type []docker.Container")
+	}
+	return containers, args.Error(1)
+}
+
+func (m *MockedClient) ContainerLogs(ctx context.Context, id string, tailSize int) (<-chan string, <-chan error) {
+	args := m.Called(ctx, id, tailSize)
+	channel, ok := args.Get(0).(chan string)
+	if !ok {
+		panic("channel is not of type chan string")
+	}
+
+	err, ok := args.Get(1).(chan error)
+	if !ok {
+		panic("error is not of type chan error")
+	}
+	return channel, err
+}
+
+func (m *MockedClient) Events(ctx context.Context) (<-chan events.Message, <-chan error) {
+	args := m.Called(ctx)
+	channel, ok := args.Get(0).(chan events.Message)
+	if !ok {
+		panic("channel is not of type chan events.Message")
+	}
+
+	err, ok := args.Get(1).(chan error)
+	if !ok {
+		panic("error is not of type chan error")
+	}
+	return channel, err
+}
+
+func Test_handler_listContainers_happy(t *testing.T) {
+	req, err := http.NewRequest("GET", "/api/containers.json", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+
+	rr := httptest.NewRecorder()
+
+	mockedClient := new(MockedClient)
+	containers := []docker.Container{
+		{
+			ID:      "1234567890",
+			Status:  "status",
+			State:   "state",
+			Name:    "test",
+			Created: 0,
+			Command: "command",
+			ImageID: "image_id",
+			Image:   "image",
+		},
+	}
+	mockedClient.On("ListContainers", mock.Anything).Return(containers, nil)
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.listContainers)
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_handler_streamLogs_happy(t *testing.T) {
+	id := "123456"
+	req, err := http.NewRequest("GET", "/api/logs/stream", nil)
+	q := req.URL.Query()
+	q.Add("id", id)
+	req.URL.RawQuery = q.Encode()
+	require.NoError(t, err, "NewRequest should not return an error.")
+
+	mockedClient := new(MockedClient)
+
+	messages := make(chan string)
+	errChannel := make(chan error)
+	mockedClient.On("FindContainer", id).Return(docker.Container{ID: id}, nil)
+	mockedClient.On("ContainerLogs", mock.Anything, mock.Anything, 300).Return(messages, errChannel)
+	go func() {
+		messages <- "INFO Testing logs..."
+		close(messages)
+	}()
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamLogs)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_handler_streamLogs_error_finding_container(t *testing.T) {
+	id := "123456"
+	req, err := http.NewRequest("GET", "/api/logs/stream", nil)
+	q := req.URL.Query()
+	q.Add("id", id)
+	req.URL.RawQuery = q.Encode()
+	require.NoError(t, err, "NewRequest should not return an error.")
+
+	mockedClient := new(MockedClient)
+	mockedClient.On("FindContainer", id).Return(docker.Container{}, errors.New("error finding container"))
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamLogs)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_handler_streamLogs_error_reading(t *testing.T) {
+	id := "123456"
+	req, err := http.NewRequest("GET", "/api/logs/stream", nil)
+	q := req.URL.Query()
+	q.Add("id", id)
+	req.URL.RawQuery = q.Encode()
+	require.NoError(t, err, "NewRequest should not return an error.")
+
+	mockedClient := new(MockedClient)
+	messages := make(chan string)
+	errChannel := make(chan error)
+	mockedClient.On("FindContainer", id).Return(docker.Container{ID: id}, nil)
+	mockedClient.On("ContainerLogs", mock.Anything, id, 300).Return(messages, errChannel)
+
+	go func() {
+		errChannel <- errors.New("test error")
+	}()
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamLogs)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_handler_streamEvents_happy(t *testing.T) {
+	req, err := http.NewRequest("GET", "/api/events/stream", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	mockedClient := new(MockedClient)
+	messages := make(chan events.Message)
+	errChannel := make(chan error)
+	mockedClient.On("Events", mock.Anything).Return(messages, errChannel)
+
+	go func() {
+		messages <- events.Message{
+			Action: "start",
+		}
+		messages <- events.Message{
+			Action: "something-random",
+		}
+		close(messages)
+	}()
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamEvents)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_handler_streamEvents_error(t *testing.T) {
+	req, err := http.NewRequest("GET", "/api/events/stream", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	mockedClient := new(MockedClient)
+	messages := make(chan events.Message)
+	errChannel := make(chan error)
+	mockedClient.On("Events", mock.Anything).Return(messages, errChannel)
+
+	go func() {
+		errChannel <- errors.New("fake error")
+		close(messages)
+	}()
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamEvents)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_handler_streamEvents_error_request(t *testing.T) {
+	req, err := http.NewRequest("GET", "/api/events/stream", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+
+	mockedClient := new(MockedClient)
+
+	messages := make(chan events.Message)
+	errChannel := make(chan error)
+	mockedClient.On("Events", mock.Anything).Return(messages, errChannel)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	req = req.WithContext(ctx)
+
+	go func() {
+		cancel()
+	}()
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamEvents)
+	rr := httptest.NewRecorder()
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+	mockedClient.AssertExpectations(t)
+}
+
+func Test_createRoutes_index(t *testing.T) {
+	mockedClient := new(MockedClient)
+	box := packr.NewBox("./virtual")
+	require.NoError(t, box.AddString("index.html", "index page"), "AddString should have no error.")
+
+	handler := createRoutes("/", &handler{mockedClient, true, box})
+	req, err := http.NewRequest("GET", "/", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+}
+
+func Test_createRoutes_redirect(t *testing.T) {
+	mockedClient := new(MockedClient)
+	box := packr.NewBox("./virtual")
+
+	handler := createRoutes("/foobar", &handler{mockedClient, true, box})
+	req, err := http.NewRequest("GET", "/foobar", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+}
+
+func Test_createRoutes_foobar(t *testing.T) {
+	mockedClient := new(MockedClient)
+	box := packr.NewBox("./virtual")
+	require.NoError(t, box.AddString("index.html", "foo page"), "AddString should have no error.")
+
+	handler := createRoutes("/foobar", &handler{mockedClient, true, box})
+	req, err := http.NewRequest("GET", "/foobar/", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+}
+
+func Test_createRoutes_foobar_file(t *testing.T) {
+	mockedClient := new(MockedClient)
+	box := packr.NewBox("./virtual")
+	require.NoError(t, box.AddString("/test", "test page"), "AddString should have no error.")
+
+	handler := createRoutes("/foobar", &handler{mockedClient, true, box})
+	req, err := http.NewRequest("GET", "/foobar/test", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+	assert.Equal(t, rr.Body.String(), "test page", "page doesn't match")
+}
+
+func Test_createRoutes_version(t *testing.T) {
+	mockedClient := new(MockedClient)
+	box := packr.NewBox("./virtual")
+
+	handler := createRoutes("/", &handler{mockedClient, true, box})
+	req, err := http.NewRequest("GET", "/version", nil)
+	require.NoError(t, err, "NewRequest should not return an error.")
+	rr := httptest.NewRecorder()
+
+	handler.ServeHTTP(rr, req)
+	abide.AssertHTTPResponse(t, t.Name(), rr.Result())
+}
+
+func TestMain(m *testing.M) {
+	exit := m.Run()
+	abide.Cleanup()
+	os.Exit(exit)
+}

package.json

@@ -1,15 +1,17 @@
 {
  "name": "dozzle",
- "version": "1.2.5",
- "description": "",
- "main": "index.js",
+ "version": "1.21.5",
+ "description": "Realtime log viewer for docker containers. ",
  "scripts": {
-  "start": "concurrently 'go run main.go' 'npm run watch-assets'",
-  "watch-assets": "parcel watch --public-url '__BASE__' assets/index.html -d static",
+  "prestart": "npm run clean",
+  "start": "DOCKER_API_VERSION=1.38 concurrently 'npm run watch-server' 'npm run watch-assets'",
+  "watch-assets": "npx parcel watch --no-source-maps --public-url '__BASE__' assets/index.html -d static",
+  "watch-server": "reflex -c .reflex",
   "prebuild": "npm run clean",
-  "build": "parcel build --no-source-maps --public-url '__BASE__' assets/index.html -d static",
-  "clean": "rm -rf static",
-  "release": "goreleaser --rm-dist"
+  "build": "npx parcel build --no-source-maps --public-url '__BASE__' assets/index.html -d static",
+  "clean": "rm -rf static/ a_main-packr.go",
+  "release": "release-it",
+  "test": "jest"
  },
  "repository": {
   "type": "git",
@@ -22,24 +24,42 @@
  },
  "homepage": "https://github.com/amir20/dozzle#readme",
  "dependencies": {
-  "bulma": "^0.7.2",
-  "bulma-tooltip": "^2.0.2",
-  "date-fns": "^2.0.0-alpha.25",
-  "vue": "^2.5.17",
-  "vue-router": "^3.0.2"
+  "ansi-to-html": "^0.6.14",
+  "buefy": "^0.8.13",
+  "bulma": "^0.8.0",
+  "date-fns": "^2.11.0",
+  "hotkeys-js": "^3.7.3",
+  "lodash.debounce": "^4.0.8",
+  "semver": "^7.1.3",
+  "splitpanes": "^2.2.1",
+  "store": "^2.0.12",
+  "vue": "^2.6.11",
+  "vue-meta": "^2.3.3",
+  "vue-router": "^3.1.6",
+  "vuex": "^3.1.3"
  },
  "devDependencies": {
-  "@babel/core": "^7.1.6",
-  "@babel/plugin-transform-runtime": "^7.1.0",
-  "@vue/component-compiler-utils": "^2.3.0",
-  "concurrently": "^4.1.0",
-  "husky": "^1.2.0",
-  "lint-staged": "^8.1.0",
-  "parcel-bundler": "^1.10.3",
-  "prettier": "^1.15.2",
-  "sass": "^1.15.1",
-  "vue-hot-reload-api": "^2.3.1",
-  "vue-template-compiler": "^2.5.17"
+  "@babel/core": "^7.8.7",
+  "@babel/plugin-transform-runtime": "^7.8.3",
+  "@vue/component-compiler-utils": "^3.1.1",
+  "@vue/test-utils": "^1.0.0-beta.29",
+  "babel-core": "^7.0.0-bridge.0",
+  "babel-jest": "^25.1.0",
+  "concurrently": "^5.1.0",
+  "eventsourcemock": "^2.0.0",
+  "husky": "^4.2.3",
+  "jest": "^25.1.0",
+  "jest-serializer-vue": "^2.0.2",
+  "lint-staged": "^10.0.8",
+  "mockdate": "^2.0.5",
+  "node-fetch": "^2.6.0",
+  "parcel-bundler": "^1.12.4",
+  "prettier": "^1.19.1",
+  "release-it": "^13.1.1",
+  "sass": "^1.26.3",
+  "vue-hot-reload-api": "^2.3.4",
+  "vue-jest": "^3.0.5",
+  "vue-template-compiler": "^2.6.11"
  },
  "husky": {
   "hooks": {
@@ -48,12 +68,49 @@
  },
  "lint-staged": {
   "*.{js,vue,css}": [
-   "prettier --write",
-   "git add"
+   "prettier --write"
   ]
  },
  "browserslist": [
   ">5%",
   "not ie <= 8"
- ]
+ ],
+ "alias": {
+  "vue": "./node_modules/vue/dist/vue.esm.js"
+ },
+ "jest": {
+  "clearMocks": true,
+  "moduleFileExtensions": [
+   "js",
+   "json",
+   "vue"
+  ],
+  "coveragePathIgnorePatterns": [
+   "node_modules"
+  ],
+  "testPathIgnorePatterns": [
+   "node_modules"
+  ],
+  "transformIgnorePatterns": [
+   "node_modules"
+  ],
+  "watchPathIgnorePatterns": [
+   "<rootDir>/node_modules/"
+  ],
+  "snapshotSerializers": [
+   "jest-serializer-vue"
+  ],
+  "transform": {
+   ".*\\.vue$": "vue-jest",
+   ".+\\.js$": "babel-jest"
+  }
+ },
+ "release-it": {
+  "github": {
+   "release": true
+  },
+  "npm": {
+   "publish": false
+  }
+ }
 }