1.10.2

Bumps [husky](https://github.com/typicode/husky) from 2.3.0 to 2.4.0.
- [Release notes](https://github.com/typicode/husky/releases)
- [Changelog](https://github.com/typicode/husky/blob/master/CHANGELOG.md)
- [Commits](https://github.com/typicode/husky/compare/v2.3.0...v2.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

.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/golang/Dockerfile

@@ -0,0 +1,6 @@
+FROM golang:1.12
+
+COPY entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD [""]

.github/golang/entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+
+go test -cover ./...

.github/goreleaser/Dockerfile

@@ -0,0 +1,9 @@
+FROM goreleaser/goreleaser:v0.106
+
+RUN go get -u github.com/gobuffalo/packr/packr
+RUN apk --no-cache add nodejs-current nodejs-npm && npm i -g npm
+
+COPY entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD [""]

.github/goreleaser/entrypoint.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+if [ -n "$DOCKER_USERNAME" ] && [ -n "$DOCKER_PASSWORD" ]; then
+    echo "Login to the docker..."
+    docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD $DOCKER_REGISTRY
+fi
+
+# Workaround for github actions when access to different repositories is needed.
+# Github actions provides a GITHUB_TOKEN secret that can only access the current
+# repository and you cannot configure it's value.
+# Access to different repositories is needed by brew for example.
+
+if [ -n "$GORELEASER_GITHUB_TOKEN" ] ; then
+  export GITHUB_TOKEN=$GORELEASER_GITHUB_TOKEN
+fi
+
+npm ci
+goreleaser $@

.github/main.workflow

@@ -0,0 +1,23 @@
+workflow "Release" {
+  on = "push"
+  resolves = [
+    "release",
+  ]
+}
+
+action "test" {
+  uses = "./.github/golang/"
+}
+
+action "is-tag" {
+  uses = "actions/bin/filter@master"
+  needs = ["test"]
+  args = "tag"
+}
+
+action "release" {
+  uses = "./.github/goreleaser/"
+  needs = ["is-tag"]
+  args = "release"
+  secrets = ["GITHUB_TOKEN", "DOCKER_USERNAME", "DOCKER_PASSWORD"]
+}

.gitignore

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

.goreleaser.yml

@@ -13,14 +13,14 @@ builds:
       - amd64
       - arm
       - arm64
-archive:
-  replacements:
-    amd64: 64-bit
-    386: 32-bit
-    arm64: ARM_64-bit
-    arm: ARM_32-bit
-    linux: Linux
-    darwin: Darwin
+archives:
+  - 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:
@@ -36,3 +36,12 @@ dockers:
       - "amir20/dozzle:{{ .Tag }}"
       - "amir20/dozzle:v{{ .Major }}.{{ .Minor }}"
       - amir20/dozzle:latest
+    build_flag_templates:
+      - "--label=org.label-schema.schema-version=1.0"
+      - "--label=org.label-schema.build-date={{.Date}}"
+      - "--label=org.label-schema.vcs-ref={{.ShortCommit}}"
+      - "--label=org.label-schema.version={{.Version}}"
+      - "--label=org.label-schema.name=Dozzle"
+      - "--label=org.label-schema.url=https://dozzle.dev/"
+      - "--label=org.label-schema.vcs-url=https://github.com/amir20/dozzle"
+      - "--label=org.label-schema.description=Dozzle is a real-time log viewer for docker containers."

.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

CNAME

@@ -0,0 +1 @@
+dozzle.dev

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

@@ -7,4 +7,3 @@ ENV DOCKER_API_VERSION 1.38
 COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 COPY dozzle /
 ENTRYPOINT ["/dozzle"]
-EXPOSE 8080

README.md

@@ -1,16 +1,22 @@
+[![Go Report Card](https://goreportcard.com/badge/github.com/amir20/dozzle)](https://goreportcard.com/report/github.com/amir20/dozzle)
+[![Build Status](https://travis-ci.org/amir20/dozzle.svg?branch=master)](https://travis-ci.org/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/)
+
 # dozzle
 
 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?
 
 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 service, then you are in luck! Dozzle will be able 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 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.
 
 ![Image](demo.gif)
 
 ## Getting dozzle
 
-Dozzle is a very small Docker container (8.6MB virtual). Pull the latest release from the index:
+Dozzle is a very small Docker container (4 MB compressed). Pull the latest release from the index:
 
     $ docker pull amir20/dozzle:latest
 
@@ -28,29 +34,29 @@ dozzle doesn't support authentication out of the box. You can control the device
 
     $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -p 8888:1224 amir20/dozzle:latest --addr localhost:1224
 
-will bind to `localhost` on port `1224`. You can then use use reverse proxy to control who can see dozzle.
+will bind to `localhost` on port `1224`. You can then use a reverse proxy to control who can see dozzle.
 
 #### 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 variable, DOCKER_API_VERSION
+#### Environment variables and configuration
 
-If you see
+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.
 
-    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 to 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` |
+| n/a | `DOCKER_API_VERSION` | `1.38` |
+| `--tailSize` | `DOZZLE_TAILSIZE` | `300` |
 
 ## License
 

__snapshots__/dozzle.snapshot

@@ -0,0 +1,77 @@
+/* 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_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.vue

@@ -1,43 +1,105 @@
 <template lang="html">
   <div class="columns is-marginless">
-    <aside class="column menu is-2 section">
-      <h1 class="title has-text-warning">Dozzle</h1>
-      <p class="menu-label">Containers</p>
-      <ul class="menu-list">
+    <aside class="column menu is-2-desktop is-3-tablet">
+      <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 :to="{ name: 'container', params: { id: item.id, name: item.name } }" active-class="is-active">
+            <div class="hide-overflow">{{ item.name }}</div>
           </router-link>
         </li>
       </ul>
     </aside>
-    <div class="column is-offset-2"><router-view></router-view></div>
+    <div class="column is-offset-2-desktop is-offset-3-tablet">
+      <router-view></router-view>
+    </div>
   </div>
 </template>
 
 <script>
+let es;
 export default {
   name: "App",
   data() {
     return {
-      containers: []
+      title: "Dozzle",
+      containers: [],
+      showNav: false
+    };
+  },
+  metaInfo() {
+    return {
+      title: this.title
     };
   },
   async created() {
-    this.containers = await (await fetch(`${BASE_PATH}/api/containers.json`)).json();
+    await this.fetchContainerList();
+    this.title = `${this.containers.length} containers - Dozzle`;
+    es = new EventSource(`${BASE_PATH}/api/events/stream`);
+    es.addEventListener("containers-changed", e => setTimeout(this.fetchContainerList, 1000), false);
+  },
+  beforeDestroy() {
+    if (es) {
+      es.close();
+      es = null;
+    }
+  },
+  methods: {
+    async fetchContainerList() {
+      this.containers = await (await fetch(`${BASE_PATH}/api/containers.json`)).json();
+    }
+  },
+  watch: {
+    $route(to, from) {
+      this.showNav = false;
+    }
   }
 };
 </script>
 
-<style scoped>
+<style scoped lang="scss">
+.is-hidden-mobile.is-active {
+  display: block !important;
+}
+
+.navbar-burger {
+  height: 2.35rem;
+}
+
 aside {
   position: fixed;
-  padding-right: 0;
+  z-index: 2;
+  padding: 1em;
+
+  @media screen and (min-width: 769px) {
+    & {
+      height: 100vh;
+      overflow: auto;
+    }
+  }
+
+  @media screen and (max-width: 768px) {
+    & {
+      position: sticky;
+      top: 0;
+      left: 0;
+      right: 0;
+      background: #222;
+    }
+
+    .menu-label {
+      margin-top: 1em;
+    }
+  }
 }
 
 .hide-overflow {
@@ -45,4 +107,8 @@ aside {
   white-space: nowrap;
   overflow: hidden;
 }
+
+.burger.is-white {
+  color: #fff;
+}
 </style>

assets/components/ScrollbarNotification.vue

@@ -44,7 +44,7 @@ export default {
     }
   },
   watch: {
-    messages(newValue, oldValue) {
+    messages() {
       if (this.visible) {
         this.hasNew = true;
       } else {

assets/index.html

@@ -5,10 +5,11 @@
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <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" ? true : false;
     </script>
     <script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
   </head>

assets/main.js

@@ -1,10 +1,12 @@
 import Vue from "vue";
 import VueRouter from "vue-router";
+import Meta from "vue-meta";
 import App from "./App.vue";
 import Container from "./pages/Container.vue";
 import Index from "./pages/Index.vue";
 
 Vue.use(VueRouter);
+Vue.use(Meta);
 
 const routes = [
   {

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

@@ -1,8 +1,20 @@
 <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>
+    <div class="search columns is-gapless is-vcentered" v-show="showSearch">
+      <div class="column">
+        <p class="control has-icons-left">
+          <input class="input" type="text" placeholder="Filter" ref="filter" v-model="filter" />
+          <span class="icon is-small is-left"><i class="fas fa-search"></i></span>
+        </p>
+      </div>
+      <div class="column is-1 has-text-centered">
+        <button class="delete is-medium" @click="resetSearch()"></button>
+      </div>
+    </div>
+
+    <ul class="events">
+      <li v-for="item in filtered" class="event" :key="item.key">
+        <span class="date">{{ item.dateRelative }}</span> <span class="text" v-html="item.message"></span>
       </li>
     </ul>
     <scrollbar-notification :messages="messages"></scrollbar-notification>
@@ -13,7 +25,7 @@
 import { formatRelative } from "date-fns";
 import ScrollbarNotification from "../components/ScrollbarNotification";
 
-let ws = null;
+let es = null;
 let nextId = 0;
 const parseMessage = data => {
   const date = new Date(data.substring(0, 30));
@@ -29,22 +41,39 @@ const parseMessage = data => {
 };
 
 export default {
-  props: ["id"],
+  props: ["id", "name"],
   name: "Container",
   components: {
     ScrollbarNotification
   },
   data() {
     return {
-      messages: []
+      messages: [],
+      showSearch: false,
+      title: "",
+      filter: ""
     };
   },
+  metaInfo() {
+    return {
+      title: this.title,
+      titleTemplate: "%s - Dozzle"
+    };
+  },
+  mounted() {
+    window.addEventListener("keydown", this.onKeyDown);
+  },
+  destroyed() {
+    window.removeEventListener("keydown", this.onKeyDown);
+  },
   created() {
     this.loadLogs(this.id);
   },
   beforeDestroy() {
-    ws.close();
-    ws = null;
+    if (es) {
+      es.close();
+      es = null;
+    }
   },
   watch: {
     id(newValue, oldValue) {
@@ -55,20 +84,45 @@ export default {
   },
   methods: {
     loadLogs(id) {
-      if (ws) {
-        ws.close();
-        ws = null;
+      if (es) {
+        es.close();
+        es = 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);
-      };
+      es = new EventSource(`${BASE_PATH}/api/logs/stream?id=${id}`);
+      es.onmessage = e => this.messages.push(parseMessage(e.data));
+      this.title = `${this.name} - Dozzle`;
+    },
+    onKeyDown(e) {
+      if ((e.metaKey || e.ctrlKey) && e.key === "f") {
+        this.showSearch = true;
+        this.$nextTick(() => this.$refs.filter.focus());
+        e.preventDefault();
+      } else if ((e.metaKey || e.ctrlKey) && e.key === "k") {
+        this.messages = [];
+      } else if (e.key === "Escape") {
+        this.resetSearch();
+      }
+    },
+    resetSearch() {
+      this.showSearch = false;
+      this.filter = "";
+    }
+  },
+  computed: {
+    filtered() {
+      const { filter } = this;
+      if (filter) {
+        const isSmartCase = filter === filter.toLowerCase();
+        const regex = isSmartCase ? new RegExp(filter, "i") : new RegExp(filter);
+        return this.messages
+          .filter(d => d.message.match(regex))
+          .map(d => ({
+            ...d,
+            message: d.message.replace(regex, "<mark>$&</mark>")
+          }));
+      }
+      return this.messages;
     }
   }
 };
@@ -93,4 +147,37 @@ export default {
 .is-fullheight {
   min-height: 100vh;
 }
+
+.text {
+  white-space: pre-wrap;
+}
+
+.search {
+  width: 350px;
+  position: fixed;
+  padding: 10px;
+  background: rgba(50, 50, 50, 0.9);
+  top: 0;
+  right: 0;
+  border-radius: 0 0 0 5px;
+}
+.delete {
+  margin-left: 1em;
+}
+
+/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/styles.scss

@@ -4,7 +4,6 @@ $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;

docker/client.go

@@ -0,0 +1,126 @@
+package docker
+
+import (
+	"strconv"
+	"bytes"
+	"context"
+	"encoding/binary"
+	"github.com/docker/docker/api/types"
+	"github.com/docker/docker/api/types/events"
+	"github.com/docker/docker/client"
+	"io"
+	"log"
+	"sort"
+	"strings"
+)
+
+type dockerClient struct {
+	cli dockerProxy
+}
+
+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)
+}
+
+// Client is a proxy around the docker client
+type Client interface {
+	ListContainers() ([]Container, error)
+	ContainerLogs(context.Context, string, int) (<-chan string, <-chan error)
+	Events(context.Context) (<-chan events.Message, <-chan error)
+}
+
+// NewClient creates a new instance of Client
+func NewClient() Client {
+	cli, err := client.NewClientWithOpts(client.FromEnv)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return &dockerClient{cli}
+}
+
+func (d *dockerClient) ListContainers() ([]Container, error) {
+	list, err := d.cli.ContainerList(context.Background(), types.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 (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()
+	}()
+
+	go func() {
+		defer close(messages)
+		defer close(errChannel)
+		defer reader.Close()
+
+		hdr := make([]byte, 8)
+		var buffer bytes.Buffer
+		for {
+			_, err := reader.Read(hdr)
+			if err != nil {
+				errChannel <- err
+				break
+			}
+			count := binary.BigEndian.Uint32(hdr[4:])
+			_, err = io.CopyN(&buffer, reader, int64(count))
+			if err != nil {
+				errChannel <- err
+				break
+			}
+			select {
+			case messages <- buffer.String():
+			case <-ctx.Done():
+			}
+			buffer.Reset()
+		}
+	}()
+
+	return messages, errChannel
+}
+
+func (d *dockerClient) Events(ctx context.Context) (<-chan events.Message, <-chan error) {
+	return d.cli.Events(ctx, types.EventsOptions{})
+}

docker/client_test.go

@@ -0,0 +1,143 @@
+package docker
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"errors"
+	"github.com/docker/docker/api/types"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+	"io"
+	"io/ioutil"
+	"testing"
+)
+
+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 Test_dockerClient_ListContainers_null(t *testing.T) {
+	proxy := new(mockedProxy)
+	proxy.On("ContainerList", mock.Anything, mock.Anything).Return(nil, nil)
+	client := &dockerClient{proxy}
+
+	list, err := client.ListContainers()
+	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}
+
+	list, err := client.ListContainers()
+	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}
+
+	list, err := client.ListContainers()
+	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)...)
+
+	var reader io.ReadCloser
+	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)
+
+	client := &dockerClient{proxy}
+	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}
+
+	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)
+}

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 +1,40 @@
+module github.com/amir20/dozzle
+
+replace github.com/docker/docker v0.0.0-20170601211448-f5ec1e2936dc => github.com/docker/engine v0.0.0-20180718150940-a3ef7e9a9bda
+
+// github.com/docker/engine v18.06.1-ce
+replace github.com/docker/docker => github.com/docker/engine v0.0.0-20180816081446-320063a2ad06
+
+// 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 v2.6.0-rc.1.0.20180820212402-02bf4a2887a4+incompatible
+
+require (
+	github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
+	github.com/Microsoft/go-winio v0.4.12 // indirect
+	github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 // indirect
+	github.com/beme/abide v0.0.0-20181227202223-4c487ef9d895
+	github.com/docker/distribution v2.7.1+incompatible // indirect
+	github.com/docker/docker v0.0.0-20170601211448-f5ec1e2936dc
+	github.com/docker/go-connections v0.4.0 // indirect
+	github.com/docker/go-units v0.4.0 // indirect
+	github.com/gobuffalo/packd v0.1.0 // indirect
+	github.com/gobuffalo/packr v1.25.0
+	github.com/google/go-cmp v0.3.0 // indirect
+	github.com/gorilla/mux v1.7.2
+	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/magiconair/properties v1.8.1
+	github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
+	github.com/opencontainers/image-spec v1.0.1 // indirect
+	github.com/sergi/go-diff v1.0.0 // indirect
+	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/pflag v1.0.3
+	github.com/spf13/viper v1.4.0
+	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/stretchr/testify v1.3.0
+	golang.org/x/sync v0.0.0-20190423024810-112230192c58 // indirect
+	golang.org/x/sys v0.0.0-20190509141414-a5b02f93d862 // indirect
+	golang.org/x/text v0.3.2 // indirect
+	gotest.tools v2.2.0+incompatible // indirect
+)

go.sum

@@ -0,0 +1,243 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+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/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/Microsoft/go-winio v0.4.12 h1:xAfWHN1IrQ0NJ9TBC0KBZoqLjzDTr1ML+4MywiUOryc=
+github.com/Microsoft/go-winio v0.4.12/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
+github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5 h1:TngWCqHvy9oXAN6lEVMRuU21PR1EtLVZJmdB18Gu3Rw=
+github.com/Nvveen/Gotty v0.0.0-20120604004816-cd527374f1e5/go.mod h1:lmUJ/7eu/Q8D7ML55dXQrVaamCz2vxCfdQBasLZfHKk=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+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/beme/abide v0.0.0-20181227202223-4c487ef9d895 h1:gKYojZRR5Nko2XJrcAEiQpBQbir/wzsNqGqtOjKJU6g=
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main.go

@@ -2,142 +2,235 @@ package main
 
 import (
 	"context"
-	"encoding/binary"
 	"encoding/json"
 	"fmt"
-	"html/template"
-	"log"
-	"net/http"
-	"strings"
-
-	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/client"
+	"github.com/amir20/dozzle/docker"
 	"github.com/gobuffalo/packr"
 	"github.com/gorilla/mux"
-	"github.com/gorilla/websocket"
-	flag "github.com/spf13/pflag"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
+	"html/template"
+	"net/http"
+	"os"
+	"os/signal"
+	"runtime"
+	"strings"
+	"time"
 )
 
 var (
-	cli      *client.Client
-	addr     = ""
-	ssl      = false
-	base     = "/"
-	upgrader = websocket.Upgrader{}
-	version  = "dev"
-	commit   = "none"
-	date     = "unknown"
+	addr    = ""
+	base    = ""
+	level   = ""
+	tailSize = 300
+	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")
-
-	var err error
-	cli, err = client.NewClientWithOpts(client.FromEnv)
-	if err != nil {
-		log.Fatal(err)
-	}
-	flag.Parse()
+type handler struct {
+	client docker.Client
+	box    packr.Box
 }
 
-func main() {
-	r := mux.NewRouter()
+func init() {
+	pflag.String("addr", ":8080", "http service address")
+	pflag.String("base", "/", "base address of the application to mount")
+	pflag.String("level", "info", "logging level")
+	pflag.Int("tailSize", 300, "Tail size to use for initial container 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")
+
+	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()
-	box := packr.NewBox("./static")
-
-	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)
-		}
-	})))
-
-	log.Fatal(http.ListenAndServe(addr, r))
+	s.HandleFunc("/api/containers.json", h.listContainers)
+	s.HandleFunc("/api/logs/stream", h.streamLogs)
+	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 versionHandler(w http.ResponseWriter, r *http.Request) {
+func main() {
+	log.Infof("Dozzle version %s", version)
+	dockerClient := docker.NewClient()
+	_, err := dockerClient.ListContainers()
+
+	if err != nil {
+		log.Fatalf("Could not connect to Docker Engine: %v", err)
+	}
+
+	box := packr.NewBox("./static")
+	r := createRoutes(base, &handler{dockerClient, box})
+	srv := &http.Server{Addr: addr, Handler: r}
+
+	go func() {
+		log.Infof("Accepting connections on %s", srv.Addr)
+		if err := srv.ListenAndServe(); err != nil {
+			log.Fatal(err)
+		}
+	}()
+
+	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 (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, _ := h.box.FindString("index.html")
+		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 }{path}
+		err = tmpl.Execute(w, data)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+		}
+	}
+}
+
+func (h *handler) listContainers(w http.ResponseWriter, r *http.Request) {
+	containers, err := h.client.ListContainers()
+	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 (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
+	}
+
+	f, ok := w.(http.Flusher)
+	if !ok {
+		http.Error(w, "Streaming unsupported!", http.StatusInternalServerError)
+		return
+	}
+	messages, err := h.client.ContainerLogs(r.Context(), 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)
 }
-
-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 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)
-	}
-
-	path := ""
-	if base != "/" {
-		path = base
-	}
-	data := struct {
-		Base string
-		SSL  bool
-	}{path, ssl}
-	err = tmpl.Execute(w, data)
-	if err != nil {
-		panic(err)
-	}
-}
-
-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()
-
-	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)
-	}
-
-	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
-		}
-	}
-}

main_test.go

@@ -0,0 +1,287 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"github.com/magiconair/properties/assert"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"testing"
+
+	"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) ListContainers() ([]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.")
+
+	rr := httptest.NewRecorder()
+
+	mockedClient := new(MockedClient)
+
+	messages := make(chan string)
+	errChannel := make(chan error)
+	mockedClient.On("ContainerLogs", mock.Anything, id, 300).Return(messages, errChannel)
+	go func() {
+		messages <- "INFO Testing logs..."
+		close(messages)
+	}()
+
+	h := handler{client: mockedClient}
+	handler := http.HandlerFunc(h.streamLogs)
+	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", "123456")
+	req.URL.RawQuery = q.Encode()
+	require.NoError(t, err, "NewRequest should not return an error.")
+	rr := httptest.NewRecorder()
+
+	mockedClient := new(MockedClient)
+	messages := make(chan string)
+	errChannel := make(chan error)
+	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)
+	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.")
+	rr := httptest.NewRecorder()
+	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)
+	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.")
+	rr := httptest.NewRecorder()
+	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)
+	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.")
+
+	rr := httptest.NewRecorder()
+
+	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)
+	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, 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, 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, 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, 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, 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

@@ -1,14 +1,15 @@
 {
  "name": "dozzle",
- "version": "1.2.1",
- "description": "",
- "main": "index.js",
+ "version": "1.10.2",
+ "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 --public-url '__BASE__' assets/index.html -d static",
+  "watch-server": "reflex -c .reflex",
   "prebuild": "npm run clean",
-  "build": "parcel build --public-url '__BASE__' assets/index.html -d static",
-  "clean": "rm -rf static",
+  "build": "npx parcel build --no-source-maps --public-url '__BASE__' assets/index.html -d static",
+  "clean": "rm -rf static/ a_main-packr.go",
   "release": "goreleaser --rm-dist"
  },
  "repository": {
@@ -22,24 +23,24 @@
  },
  "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": "^3.0.1"
+  "bulma": "^0.7.5",
+  "date-fns": "^2.0.0-alpha.31",
+  "vue": "^2.6.10",
+  "vue-meta": "^2.0.2",
+  "vue-router": "^3.0.6"
  },
  "devDependencies": {
-  "@babel/core": "^7.1.6",
-  "@babel/plugin-transform-runtime": "^7.1.0",
-  "@vue/component-compiler-utils": "^2.3.0",
+  "@babel/core": "^7.4.5",
+  "@babel/plugin-transform-runtime": "^7.4.4",
+  "@vue/component-compiler-utils": "^3.0.0",
   "concurrently": "^4.1.0",
-  "husky": "^1.1.4",
-  "lint-staged": "^8.0.5",
-  "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"
+  "husky": "^2.4.0",
+  "lint-staged": "^8.2.0",
+  "parcel-bundler": "^1.12.3",
+  "prettier": "^1.18.2",
+  "sass": "^1.21.0",
+  "vue-hot-reload-api": "^2.3.3",
+  "vue-template-compiler": "^2.6.10"
  },
  "husky": {
   "hooks": {
@@ -55,5 +56,8 @@
  "browserslist": [
   ">5%",
   "not ie <= 8"
- ]
+ ],
+ "alias": {
+  "vue": "./node_modules/vue/dist/vue.esm.js"
+ }
 }