Docker image for node 6.x latest and yarn and karma w/ headless chrome

Dockerfile

# yarn included
FROM node:6

# for installing chrome
RUN apt-get update -qqy \
 && apt-get -qqy install \
      apt-transport-https \
      ca-certificates \
      ttf-wqy-zenhei \
      ttf-unfonts-core \
      wget

# install chrome
RUN wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | apt-key add - \
 && echo "deb https://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list \
 && apt-get update -qqy \
 && apt-get -qqy install google-chrome-stable \
 && rm /etc/apt/sources.list.d/google-chrome.list \
 && rm -rf /var/lib/apt/lists/* /var/cache/apt/*

WORKDIR /workspace

karma.conf.js

// from https://github.com/karma-runner/karma/issues/2603
{
  // ...

  browsers: ['ChromeNoSandboxHeadless'],
  customLaunchers: {
    ChromeNoSandboxHeadless: {
      base: 'Chrome',
      flags: [
        '--no-sandbox',
        // See https://chromium.googlesource.com/chromium/src/+/lkgr/headless/README.md
        '--headless',
        '--disable-gpu',
        // Without a remote debugging port, Google Chrome exits immediately.
        ' --remote-debugging-port=9222',
      ],
    },
  },
  
  // ...
}

RUN curl https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
 && sh -c 'echo "deb http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
 && apt-get update -qq && apt-get install -qq \
  google-chrome-stable \
 && rm /etc/apt/sources.list.d/google-chrome.list \
 && rm -rf /var/lib/apt/lists/* /var/cache/apt/*

もはやこんだけでchrome入る疑惑