1.17.2

* Add reference to supported filters

* fix spacing

.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" } }]]
+    }
+  }
 }

.editorconfig

@@ -0,0 +1,17 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+max_line_length = 120
+
+[*.go]
+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:1.13
+
+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 +1,13 @@
+FROM golang:1.13-alpine
+
+RUN apk --no-cache add git nodejs-current nodejs-npm make g++ bash bzr curl docker rpm && \
+  npm i -g npm && \
+  wget https://github.com/goreleaser/goreleaser/releases/latest/download/goreleaser_Linux_x86_64.tar.gz && \
+  tar -xvzf *.tar.gz -C /usr/local/bin && \
+  rm *.gz && \
+  go get -u github.com/gobuffalo/packr/packr
+
+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/workflows/push.yml

@@ -0,0 +1,23 @@
+on: push
+name: Build, Test and Release
+jobs:
+  build:
+    name: npm test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: npm test
+        uses: actions/setup-node@v1
+      - run: npm it
+      - name: go test
+        uses: ./.github/golang/
+      - name: Release
+        uses: ./.github/goreleaser/
+        env:
+          DOCKER_PASSWORD: ${{ secrets.DOCKER_PASSWORD }}
+          DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REF: ${{ github. ref }}
+        with:
+          args: release
+        if: contains(github.ref, 'tags')

.gitignore

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

.goreleaser.yml

@@ -1,5 +1,6 @@
 before:
   hooks:
+    - npm run clean
     - npm run build
     - packr
 builds:
@@ -12,14 +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:
@@ -35,3 +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."

.prettierrc.json

@@ -0,0 +1,3 @@
+{
+  "printWidth": 120
+}

.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

@@ -1,25 +0,0 @@
-language: go
-
-go:
-  - "1.11"
-
-services:
-  - docker
-
-before_install:
-  - nvm install --lts
-  - npm i
-  - 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

@@ -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

@@ -1,47 +1,106 @@
-# 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/)
 
-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 right 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 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. 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)
 
 ## Getting dozzle
 
-Dozzle is a very small Docker container (13.3MB 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
 
 ## 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,
+dozzle doesn't support authentication out of the box. You can control the device dozzle binds to by passing `--addr` parameter. For example,
 
-    $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -p 8888:1224 amir20/dozzle:latest -addr localhost:1224
+    $ 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 the dozzle.
+will bind to `localhost` on port `1224`. You can then use a reverse proxy to control who can see dozzle.
 
-#### Environment variable, DOCKER_API_VERSION
+If you wish to restrict the containers shown you can pass the `--filter` parameter. For example,
 
-If you see
+    $ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -p 8888:1224 amir20/dozzle:latest --filter name=foo
 
-    2018/10/31 08:53:17 Error response from daemon: client version 1.40 is too new. Maximum supported API version is 1.38
+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.
 
-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`
+#### Changing base URL
 
-$ docker run --volume=/var/run/docker.sock:/var/run/docker.sock -e DOCKER_API_VERSION=1.20 -p 8888:8080 amir20/dozzle:latest
+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`. See env variables below for using `DOZZLE_BASE` to change this.
 
-If you are not sure what to set `DOCKER_API_VERSION` then run `docker version` which will show supported API version.
+    $ 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
+
+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.
+
+| 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 +1,50 @@
+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 };
+  let store;
+
+  beforeEach(() => {
+    global.BASE_PATH = "";
+    global.EventSource = EventSource;
+    const state = {
+      containers: [
+        { id: "abc", name: "Test 1" },
+        { id: "xyz", name: "Test 2" }
+      ]
+    };
+
+    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

@@ -1,15 +1,89 @@
 <template lang="html">
-    <router-view></router-view>
+  <div class="columns is-marginless">
+    <side-menu></side-menu>
+    <div class="column is-offset-3-tablet is-offset-2-widescreen is-9-tablet is-10-widescreen is-paddingless">
+      <splitpanes>
+        <pane>
+          <router-view></router-view>
+        </pane>
+        <pane v-for="other in activeContainers" :key="other.id">
+          <scrollable-view>
+            <template v-slot:header>
+              <div class="name columns is-marginless">
+                <span class="column">{{ other.name }}</span>
+                <span class="column is-narrow">
+                  <button class="delete is-medium" @click="removeActiveContainer(other)"></button>
+                </span>
+              </div>
+            </template>
+            <log-viewer-with-source :id="other.id"></log-viewer-with-source>
+          </scrollable-view>
+        </pane>
+      </splitpanes>
+    </div>
+  </div>
 </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";
+
 export default {
-  name: "App"
+  name: "App",
+  components: {
+    LogViewerWithSource,
+    SideMenu,
+    ScrollableView,
+    Splitpanes,
+    Pane
+  },
+  data() {
+    return {
+      title: "",
+      showNav: false
+    };
+  },
+  metaInfo() {
+    return {
+      title: this.title,
+      titleTemplate: "%s - Dozzle"
+    };
+  },
+  async created() {
+    await this.fetchContainerList();
+    this.title = `${this.containers.length} containers`;
+  },
+  computed: {
+    ...mapState(["containers", "activeContainers"])
+  },
+  methods: {
+    ...mapActions({
+      fetchContainerList: "FETCH_CONTAINERS",
+      removeActiveContainer: "REMOVE_ACTIVE_CONTAINER"
+    })
+  },
+  watch: {
+    $route(to, from) {
+      this.showNav = false;
+    }
+  }
 };
 </script>
 
-<style lang="css">
-.section.is-fullwidth {
-  padding: 0 !important;
+<style scoped lang="scss">
+.name {
+  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+  background: rgba(0, 0, 0, 0.1);
+  font-weight: bold;
+  font-family: monospace;
+}
+
+::v-deep .splitpanes__splitter {
+  min-width: 4px;
+  background: #666;
 }
 </style>

assets/__snapshots__/App.spec.js.snap

@@ -0,0 +1,26 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<App /> renders correctly 1`] = `
+<div
+  class="columns is-marginless"
+>
+  <side-menu-stub />
+   
+  <div
+    class="column is-offset-3-tablet is-offset-2-widescreen is-9-tablet is-10-widescreen is-paddingless"
+  >
+    <splitpanes-stub
+      dblclicksplitter="true"
+      pushotherpanes="true"
+    >
+      <pane-stub
+        maxsize="100"
+        minsize="0"
+      >
+        <router-view-stub />
+      </pane-stub>
+       
+    </splitpanes-stub>
+  </div>
+</div>
+`;

assets/components/LogEventSource.spec.js

@@ -0,0 +1,158 @@
+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 LogEventSource from "./LogEventSource.vue";
+import LogViewer from "./LogViewer.vue";
+
+describe("<LogEventSource />", () => {
+  beforeEach(() => {
+    global.BASE_PATH = "";
+    global.EventSource = EventSource;
+    MockDate.set("6/12/2019", 0);
+    window.scrollTo = jest.fn();
+  });
+
+  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 };
+
+    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).toMatchSnapshot();
+  });
+
+  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).toBeGreaterThanOrEqual(0);
+
+    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).toBeGreaterThanOrEqual(0);
+
+    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">
+        <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">
+        <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">
+        <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">
+        <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 +1,55 @@
+<template lang="html">
+  <div>
+    <slot v-bind:messages="messages"></slot>
+  </div>
+</template>
+
+<script>
+let nextId = 0;
+function parseMessage(data) {
+  const date = new Date(data.substring(0, 30));
+  const message = data.substring(30);
+  const key = nextId++;
+  return {
+    key,
+    date,
+    message
+  };
+}
+
+export default {
+  props: ["id"],
+  name: "LogEventSource",
+  data() {
+    return {
+      messages: []
+    };
+  },
+  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}`);
+      this.es.onmessage = e => this.messages.push(parseMessage(e.data));
+      this.es.onerror = function(e) {
+        console.log("EventSource failed." + e);
+      };
+      this.$once("hook:beforeDestroy", () => this.es.close());
+    }
+  },
+  watch: {
+    id(newValue, oldValue) {
+      if (oldValue !== newValue) {
+        this.loadLogs(newValue);
+      }
+    }
+  }
+};
+</script>

assets/components/LogViewer.vue

@@ -0,0 +1,94 @@
+<template lang="html">
+  <ul class="events">
+    <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"]),
+    filtered() {
+      const { searchFilter, messages } = this;
+      if (searchFilter) {
+        const isSmartCase = searchFilter === searchFilter.toLowerCase();
+        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>")
+          }));
+      }
+      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 {
+    font-size: 13px;
+    line-height: 16px;
+    word-wrap: break-word;
+  }
+}
+
+.date {
+  background-color: #262626;
+  color: #258ccd;
+}
+
+.text {
+  white-space: pre-wrap;
+}
+
+>>> 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/ScrollableView.vue

@@ -0,0 +1,89 @@
+<template lang="html">
+  <section>
+    <header v-if="$slots.header">
+      <slot name="header"></slot>
+    </header>
+    <main ref="content" @scroll.passive="onScroll">
+      <slot></slot>
+    </main>
+    <div class="scroll-bar-notification">
+      <transition name="fade">
+        <button
+          class="button"
+          :class="hasMore ? 'is-warning' : 'is-primary'"
+          @click="scrollToBottom('smooth')"
+          v-show="paused"
+        >
+          <span class="icon large"> <i class="fas fa-chevron-down"></i> </span>
+        </button>
+      </transition>
+    </div>
+  </section>
+</template>
+
+<script>
+export default {
+  name: "ScrollableView",
+  data() {
+    return {
+      paused: false,
+      hasMore: false
+    };
+  },
+  mounted() {
+    const { content } = this.$refs;
+    new MutationObserver(e => {
+      if (!this.paused) {
+        this.scrollToBottom("instant");
+      } else {
+        this.hasMore = true;
+      }
+    }).observe(content, { childList: true, subtree: true });
+  },
+  methods: {
+    scrollToBottom(behavior = "instant") {
+      const { content } = this.$refs;
+      if (typeof content.scroll === "function") {
+        content.scroll({ top: content.scrollHeight, behavior });
+      } else {
+        content.scrollTop = content.scrollHeight;
+      }
+      this.hasMore = false;
+    },
+    onScroll(e) {
+      const { content } = this.$refs;
+      this.paused = content.scrollTop + content.clientHeight + 1 < content.scrollHeight;
+    }
+  },
+  watch: {}
+};
+</script>
+<style scoped lang="scss">
+section {
+  display: flex;
+  flex-direction: column;
+  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/Search.vue

@@ -0,0 +1,77 @@
+<template lang="html">
+  <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>
+</template>
+
+<script>
+import { mapActions, mapState } from "vuex";
+export default {
+  props: [],
+  name: "Search",
+  data() {
+    return {
+      showSearch: false
+    };
+  },
+  mounted() {
+    window.addEventListener("keydown", this.onKeyDown);
+  },
+  destroyed() {
+    window.removeEventListener("keydown", this.onKeyDown);
+  },
+  methods: {
+    ...mapActions({
+      updateSearchFilter: "SET_SEARCH"
+    }),
+    onKeyDown(e) {
+      if ((e.metaKey || e.ctrlKey) && e.key === "f") {
+        this.showSearch = true;
+        this.$nextTick(() => this.$refs.filter.focus());
+        e.preventDefault();
+      } else if (e.key === "Escape") {
+        this.resetSearch();
+      }
+    },
+    resetSearch() {
+      this.showSearch = false;
+      this.filter = "";
+    }
+  },
+  computed: {
+    ...mapState(["searchFilter"]),
+    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 +1,126 @@
+<template lang="html">
+  <aside class="column menu is-3-tablet is-2-widescreen">
+    <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">
+            <span
+              @click.stop.prevent="appendActiveContainer(item)"
+              class="icon is-small will-append-container"
+              :class="{ 'is-active': activeContainersById[item.id] }"
+            >
+              <i class="fas fa-thumbtack"></i>
+            </span>
+            {{ item.name }}
+          </div>
+        </router-link>
+      </li>
+    </ul>
+  </aside>
+</template>
+
+<script>
+import { mapActions, mapGetters, mapState } from "vuex";
+
+export default {
+  props: [],
+  name: "SideMenu",
+  data() {
+    return {
+      showNav: false
+    };
+  },
+  methods: {
+    colorize: value =>
+      ansiConvertor
+        .toHtml(value)
+        .replace("&lt;mark&gt;", "<mark>")
+        .replace("&lt;/mark&gt;", "</mark>")
+  },
+  computed: {
+    ...mapState(["containers", "activeContainers"]),
+    activeContainersById() {
+      return this.activeContainers.reduce((map, obj) => {
+        map[obj.id] = obj;
+        return map;
+      }, {});
+    }
+  },
+  methods: {
+    ...mapActions({
+      appendActiveContainer: "APPEND_ACTIVE_CONTAINER"
+    })
+  }
+};
+</script>
+<style scoped lang="scss">
+aside {
+  position: fixed;
+  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 {
+    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;
+  }
+}
+
+.will-append-container.icon {
+  transition: transform 0.2s ease-out;
+  &.is-active {
+    transform: rotate(25deg);
+    pointer-events: none;
+    color: #00d1b2;
+  }
+  .router-link-exact-active & {
+    visibility: hidden;
+  }
+}
+</style>

assets/components/__snapshots__/LogEventSource.spec.js.snap

@@ -0,0 +1,9 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<LogEventSource /> renders correctly 1`] = `
+<div>
+  <ul
+    class="events"
+  />
+</div>
+`;

assets/index.html

@@ -1,19 +1,21 @@
 <!DOCTYPE html>
 <html>
-
-<head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
     <title>Dozzle</title>
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bulma/0.7.2/css/bulma.min.css">
+    <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 }}";
+    </script>
     <script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
-</head>
+  </head>
 
-<body>
-    <section class="section is-fullwidth">
-        <div id="app"></div>
-    </section>
-    <script src="/main.js"></script>
-</body>
-
-</html>
+  <body class="is-dark">
+    <div id="app"></div>
+    <script src="main.js"></script>
+  </body>
+</html>

assets/main.js

@@ -1,13 +1,21 @@
 import Vue from "vue";
 import VueRouter from "vue-router";
+import Meta from "vue-meta";
+import Vuex from "vuex";
+import store from "./store";
 import App from "./App.vue";
-import Index from "./pages/Index.vue";
 import Container from "./pages/Container.vue";
+import Index from "./pages/Index.vue";
 
 Vue.use(VueRouter);
+Vue.use(Meta);
 
 const routes = [
-  { path: "/", component: Index },
+  {
+    path: "/",
+    component: Index,
+    name: "default"
+  },
   {
     path: "/container/:id",
     component: Container,
@@ -18,10 +26,12 @@ const routes = [
 
 const router = new VueRouter({
   mode: "history",
+  base: BASE_PATH + "/",
   routes
 });
 
 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

@@ -1,70 +1,31 @@
 <template lang="html">
-    <ul ref="events" class="events"></ul>
+  <div>
+    <search></search>
+    <scrollable-view>
+      <log-viewer-with-source :id="id"></log-viewer-with-source>
+    </scrollable-view>
+  </div>
 </template>
 
 <script>
-import { formatRelative } from "date-fns";
-let ws;
-
-const parseMessage = data => {
-  const date = new Date(data.substring(0, 30));
-  const dateRelative = formatRelative(date, new Date());
-  const message = data.substring(30);
-  return {
-    date,
-    dateRelative,
-    message
-  };
-};
+import LogViewerWithSource from "../components/LogViewerWithSource";
+import Search from "../components/Search";
+import ScrollableView from "../components/ScrollableView";
 
 export default {
-  props: ["id"],
+  props: ["id", "name"],
   name: "Container",
-  mounted() {
-    ws = new WebSocket(`ws://${window.location.host}/api/logs?id=${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 data = parseMessage(e.data);
-      const parent = this.$refs.events;
-      const item = document.createElement("li");
-      item.className = "event";
-
-      const date = document.createElement("span");
-      date.className = "date";
-      date.innerHTML = data.dateRelative;
-      item.appendChild(date);
-
-      const message = document.createElement("span");
-      message.className = "text";
-      message.innerHTML = data.message;
-      item.appendChild(message);
-
-      parent.appendChild(item);
-
-      this.$nextTick(() => item.scrollIntoView());
+  components: {
+    LogViewerWithSource,
+    ScrollableView,
+    Search
+  },
+  metaInfo() {
+    return {
+      title: this.name,
+      titleTemplate: "%s - Dozzle"
     };
   }
 };
 </script>
-<style>
-.events {
-  color: #ddd;
-  background-color: #111;
-  padding: 10px;
-}
-
-.event {
-  font-family: monaco, monospace;
-  font-size: 12px;
-  line-height: 16px;
-  padding: 0 15px 0 30px;
-  word-wrap: break-word;
-}
-
-.date {
-  background-color: #262626;
-  color: #258ccd;
-}
-</style>
+<style lang="scss" scoped></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/Index.vue

@@ -1,55 +1,22 @@
 <template lang="html">
-<div class="container">
-    <div class="content">
-        <section class="section">
-            <ul class="is-marginless is-paddless">
-                <li v-for="item in containers" class=" unstyled box">
-                    <router-link :to="{name: 'container', params: {id: item.Id}}" class="columns">
-                        <div class="column is-6">
-                            <h2 class="is-2 hide-overflow">{{ item.Names[0] }}</h2>
-                            <span class="subtitle is-6 code hide-overflow">{{ item.Command}}</span>
-                        </div>
-                        <div class="column is-4">
-                            <span class="code hide-overflow">{{ item.Image }}</span>
-                        </div>
-                        <div class="column is-narrow">
-                            <span class="subtitle is-7">{{ item.Status}}</span>
-                        </div>
-                    </router-link>
-                </li>
-            </ul>
-        </section>
+  <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>
+  </div>
 </template>
 
 <script>
 export default {
-  name: "Index",
-  data() {
-    return {
-      containers: []
-    };
-  },
-  async created() {
-    this.containers = await (await fetch(`/api/containers.json`)).json();
-  }
+  props: [],
+  name: "Default"
 };
 </script>
-
-<style lang="css">
-.hide-overflow {
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  overflow: hidden;
-}
-.code {
-  background-color: #f5f5f5;
-  color: #ff3860;
-  font-size: 0.875em;
-  font-weight: 400;
-  padding: 0.25em 0.5em 0.25em;
-  display: block;
-  border-radius: 2px;
+<style scoped>
+.hero.is-dark {
+  color: #ddd;
+  background-color: #111;
 }
 </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 +1,56 @@
+import Vue from "vue";
+import Vuex from "vuex";
+// import storage from "store/dist/store.modern";
+
+Vue.use(Vuex);
+
+const state = {
+  containers: [],
+  activeContainers: [],
+  searchFilter: null
+};
+
+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;
+  }
+};
+
+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(`${BASE_PATH}/api/containers.json`)).json();
+    commit("SET_CONTAINERS", containers);
+  }
+};
+const getters = {};
+
+const es = new EventSource(`${BASE_PATH}/api/events/stream`);
+es.addEventListener("containers-changed", e => setTimeout(() => store.dispatch("FETCH_CONTAINERS"), 1000), false);
+
+const store = new Vuex.Store({
+  strict: true,
+  state,
+  getters,
+  actions,
+  mutations
+});
+
+export default store;

assets/styles.scss

@@ -0,0 +1,24 @@
+@charset "utf-8";
+
+$menu-item-active-background-color: hsl(171, 100%, 41%);
+$menu-item-color: hsl(0, 6%, 87%);
+
+@import "../node_modules/bulma/bulma.sass";
+@import "../node_modules/splitpanes/dist/splitpanes.css";
+
+.is-dark {
+  color: #ddd;
+  background-color: #111;
+}
+
+body {
+  font-family: "Roboto", sans-serif;
+}
+
+h1.title {
+  font-family: "Gafata", sans-serif;
+}
+
+.column {
+  min-width: 0;
+}

docker/client.go

@@ -0,0 +1,192 @@
+package docker
+
+import (
+	"bufio"
+	"bytes"
+	"context"
+	"encoding/binary"
+	"fmt"
+	"io"
+	"sort"
+	"strconv"
+	"strings"
+
+	"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)
+}
+
+// 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 (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)
+
+	if containerJSON.Config.Tty {
+		go func() {
+			defer close(messages)
+			defer close(errChannel)
+			defer reader.Close()
+			scanner := bufio.NewScanner(reader)
+			for scanner.Scan() {
+				line := scanner.Text()
+				select {
+				case messages <- line:
+				case <-ctx.Done():
+				}
+			}
+		}()
+	} else {
+		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 +1,230 @@
+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 +1,48 @@
+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 v1.2.9 // 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 v1.7.1 // indirect
+	github.com/gobuffalo/packr v1.30.1
+	github.com/gogo/protobuf v1.3.0 // indirect
+	github.com/google/go-cmp v0.3.1 // indirect
+	github.com/gorilla/mux v1.7.3
+	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 v1.4.0 // 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/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5
+	github.com/spf13/viper v1.5.0
+	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/stretchr/testify v1.4.0
+	golang.org/x/net v0.0.0-20190918130420-a8b05e9114ab // indirect
+	golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3 // indirect
+	golang.org/x/text v0.3.2 // indirect
+	google.golang.org/genproto v0.0.0-20190916214212-f660b8655731 // indirect
+	google.golang.org/grpc v1.23.1 // indirect
+	gotest.tools v2.2.0+incompatible // indirect
+)
+
+go 1.13

go.sum

@@ -0,0 +1,321 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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main.go

@@ -2,94 +2,268 @@ package main
 
 import (
 	"context"
-	"encoding/binary"
 	"encoding/json"
-	"flag"
-	"log"
+	"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/amir20/dozzle/docker"
 	"github.com/gobuffalo/packr"
-	"github.com/gorilla/websocket"
+	"github.com/gorilla/mux"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/pflag"
+	"github.com/spf13/viper"
 )
 
 var (
-	cli      *client.Client
-	addr     = flag.String("addr", ":8080", "http service address")
-	upgrader = websocket.Upgrader{}
+	addr     = ""
+	base     = ""
+	level    = ""
+	showAll  = false
+	tailSize = 300
+	filters  map[string]string
 	version  = "dev"
 	commit   = "none"
 	date     = "unknown"
 )
 
+type handler struct {
+	client docker.Client
+	showAll bool
+	box    packr.Box
+}
+
 func init() {
-	var err error
-	cli, err = client.NewClientWithOpts(client.FromEnv)
-	if err != nil {
-		log.Fatal(err)
+	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]
+		}
 	}
-	flag.Parse()
+
+	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/events/stream", h.streamEvents)
+	s.HandleFunc("/version", h.version)
+	s.PathPrefix("/").Handler(http.StripPrefix(base, http.HandlerFunc(h.index)))
+	return r
 }
 
 func main() {
+	log.Infof("Dozzle version %s", version)
+	dockerClient := docker.NewClientWithFilters(filters)
+	_, err := dockerClient.ListContainers(true)
+
+	if err != nil {
+		log.Fatalf("Could not connect to Docker Engine: %v", err)
+	}
+
 	box := packr.NewBox("./static")
-	http.HandleFunc("/api/containers.json", listContainers)
-	http.HandleFunc("/api/logs", logs)
-	http.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		fileServer := http.FileServer(box)
-		if box.Has(req.URL.Path) {
-			fileServer.ServeHTTP(w, req)
-		} else {
-			bytes, _ := box.Find("index.html")
-			w.Write(bytes)
+	r := createRoutes(base, &handler{
+		client: dockerClient,
+		showAll: showAll,
+		box: 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)
 		}
-	}))
+	}()
 
-	log.Fatal(http.ListenAndServe(*addr, nil))
+	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 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 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: "500", 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)
+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)
 		}
-		count := binary.BigEndian.Uint32(hdr[4:])
-		n, err := reader.Read(content[:count])
-		if err != nil {
-			log.Println(err)
-			break
+
+		path := ""
+		if base != "/" {
+			path = base
 		}
-		err = c.WriteMessage(websocket.TextMessage, content[:n])
+
+		data := struct{ Base string }{path}
+		err = tmpl.Execute(w, data)
 		if err != nil {
-			log.Println(err)
-			break
+			http.Error(w, err.Error(), http.StatusInternalServerError)
 		}
 	}
 }
+
+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 (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
+	}
+
+	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

@@ -1,54 +1,104 @@
 {
-  "name": "dozzle",
-  "version": "1.0.9",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "start": "concurrently 'go run main.go' 'npm run watch-assets'",
-    "watch-assets": "parcel watch assets/index.html -d static",
-    "build": "parcel build assets/index.html -d static",
-    "clean": "rm -rf static"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/amir20/dozzle.git"
-  },
-  "author": "",
-  "license": "ISC",
-  "bugs": {
-    "url": "https://github.com/amir20/dozzle/issues"
-  },
-  "homepage": "https://github.com/amir20/dozzle#readme",
-  "dependencies": {
-    "vue": "^2.5.17",
-    "vue-router": "^3.0.1"
-  },
-  "devDependencies": {
-    "@babel/core": "^7.1.2",
-    "@babel/plugin-transform-runtime": "^7.1.0",
-    "@vue/component-compiler-utils": "^2.3.0",
-    "concurrently": "^4.0.1",
-    "date-fns": "^2.0.0-alpha.25",
-    "husky": "^1.1.2",
-    "lint-staged": "^8.0.4",
-    "parcel-bundler": "^1.10.3",
-    "prettier": "^1.14.3",
-    "vue-hot-reload-api": "^2.3.1",
-    "vue-template-compiler": "^2.5.17"
-  },
-  "husky": {
-    "hooks": {
-      "pre-commit": "lint-staged"
-    }
-  },
-  "lint-staged": {
-    "*.{js,vue,css}": [
-      "prettier --write",
-      "git add"
-    ]
-  },
-  "browserslist": [
-    ">5%",
-    "not ie <= 8"
+ "name": "dozzle",
+ "version": "1.17.2",
+ "description": "Realtime log viewer for docker containers. ",
+ "scripts": {
+  "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": "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",
+  "test": "jest"
+ },
+ "repository": {
+  "type": "git",
+  "url": "git+https://github.com/amir20/dozzle.git"
+ },
+ "author": "",
+ "license": "ISC",
+ "bugs": {
+  "url": "https://github.com/amir20/dozzle/issues"
+ },
+ "homepage": "https://github.com/amir20/dozzle#readme",
+ "dependencies": {
+  "ansi-to-html": "^0.6.13",
+  "bulma": "^0.8.0",
+  "date-fns": "^2.8.1",
+  "splitpanes": "^2.1.1",
+  "store": "^2.0.12",
+  "vue": "^2.6.10",
+  "vue-meta": "^2.3.1",
+  "vue-router": "^3.1.3",
+  "vuex": "^3.1.2"
+ },
+ "devDependencies": {
+  "@babel/core": "^7.7.4",
+  "@babel/plugin-transform-runtime": "^7.7.4",
+  "@vue/component-compiler-utils": "^3.0.2",
+  "@vue/test-utils": "^1.0.0-beta.29",
+  "babel-core": "^7.0.0-bridge.0",
+  "babel-jest": "^24.9.0",
+  "concurrently": "^5.0.0",
+  "eventsourcemock": "^2.0.0",
+  "husky": "^3.1.0",
+  "jest": "^24.9.0",
+  "jest-serializer-vue": "^2.0.2",
+  "lint-staged": "^9.4.3",
+  "mockdate": "^2.0.5",
+  "node-fetch": "^2.6.0",
+  "parcel-bundler": "^1.12.4",
+  "prettier": "^1.19.1",
+  "sass": "^1.23.7",
+  "vue-hot-reload-api": "^2.3.4",
+  "vue-jest": "^3.0.5",
+  "vue-template-compiler": "^2.6.10"
+ },
+ "husky": {
+  "hooks": {
+   "pre-commit": "lint-staged"
+  }
+ },
+ "lint-staged": {
+  "*.{js,vue,css}": [
+   "prettier --write",
+   "git add"
   ]
+ },
+ "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"
+  }
+ }
 }