add support for Chrone and JRE 8 (#25)

Add support for Chrome browser and JRE 8 (Selenium)

.circleci/config.yml

@@ -12,4 +12,4 @@ jobs:
 
       - run:
           name: Build the image
-          command: docker build -t nodejs-dev .
+          command: docker build -t nodejs-dev .

Dockerfile

@@ -1,7 +1,6 @@
 FROM ubuntu:16.04
 
-RUN apt-get update
-RUN apt-get install -y curl vim git bzip2 ssh
+RUN apt-get update && apt-get install -y curl vim git bzip2 ssh
 
 # install HeadlessChrome X11 packages
 # https://github.com/Quramy/puppeteer-example#with-docker-based-ci-services
@@ -11,19 +10,17 @@ RUN apt-get install -yq gconf-service libasound2 libatk1.0-0 libc6 libcairo2 lib
       libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 \
       ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget
 
-# install NodeJS LTS
+# install Chrome and Java JRE
+# https://askubuntu.com/questions/510056/how-to-install-google-chrome
+RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add 
+RUN echo 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' | tee /etc/apt/sources.list.d/google-chrome.list
+RUN apt-get update && apt-get install -y google-chrome-stable default-jre
+
+# install NodeJS 8 LTS
 RUN curl -sL https://deb.nodesource.com/setup_8.x | bash -
 RUN apt-get install -y nodejs
 
-# install latest yarn@^1.0.0
+# install latest yarn@1.0.0 and upgrade to latest release of npm@5.0.0
 # use yarn to install npm \_(ツ)_/¯
 # https://stackoverflow.com/questions/44269086/how-to-upgrade-npm-to-npm5-on-the-latest-node-docker-image
-RUN npm install -g yarn@^1.0.0
-
-# upgrade to latest release of npm@^5.0.0
-RUN yarn global add npm@^5.0.0
-
-# environment info
-RUN node -v
-RUN npm -v
-RUN yarn -v
+RUN npm install -g yarn@^1.0.0 && yarn global add npm@^5.0.0

README.md

@@ -6,20 +6,26 @@ A [Docker][] image for [NodeJS][] development, primarily for the benefit of The
 
 
 ## Features
+
+### Environment
 | Tool | Version | Notes |
 |------|---------|-------|
 | [NodeJS][] | 8.x  | This is the current LTS version |
 | [Yarn][] | 1.x  |       |
 | [npm][] | 5.x  |       |
-| [Chrome Headless][] | N / A  |  Base image accounts for needed host packages needed to run Chrome Headless |
+| [Chrome Headless][] | N / A  |  Host packages needed to run **Chrome** Headless |
+| [Chrome][] | Stable  |  Host packages needed to run **Chrome** browser (in headless mode) like **puppeteer** |
+| [JRE][] | 8  |  Java Runtime Environment (needed by **Selenium**) |
 
 [NodeJS]: https://nodejs.org/en/download/
 [npm]: https://www.npmjs.com/
 [Yarn]: https://yarnpkg.com/en/
 [Chrome Headless]: https://developers.google.com/web/updates/2017/04/headless-chrome
+[Chrome]: https://www.google.com/chrome/
+[JRE]: http://www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
 
-### Headless Chrome (Karma)
-Include this in your _karma.conf.js_.
+### Karma
+[Karma](https://karma-runner.github.io/) can use HeadlessChrome by including this in _karma.conf.js_.
 
 ```javascript
 browsers: ['CustomChromeHeadless'],
@@ -35,6 +41,32 @@ browserDisconnectTimeout: 210000,
 browserNoActivityTimeout: 210000,
 ```
 
+### Web Component Tester (Selenium)
+[Web Component Tester](https://github.com/Polymer/tools/tree/master/packages/web-component-tester#custom-environments) can use Chrome by including  this in _wct.conf.json_.
+
+```javascript
+{
+  "plugins": {
+    "local": {
+      "disabled": true
+    },
+    "headless": {
+      "browsers": [
+        "chrome"
+      ],
+      "browsersOptions": {
+        "chrome": [
+          "window-size=1920,1080",
+          "headless",
+          "disable-gpu",
+          "no-sandbox"
+        ]
+      }
+    }
+  }
+}
+```
+
 ## Development
 Common Docker commands, generally used in development