Using Ember-CLI with Chrome on GitLab CI

.gitlab-ci.yml

image: node:7.10

cache:
  paths:
    - node_modules/
    - bower_components/

before_script:
  # Install Chrome
  - wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
  - echo "deb http://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google.list
  - apt-get update -yqqq
  - apt-get install -y google-chrome-stable > /dev/null 2>&1

  - npm install --silent
  
  # Remove if you don't have bower deps
  - npm install -g bower
  - bower install --allow-root --silent

test:
  stage: test
  script:
    - ./node_modules/.bin/ember test

testem.js

/* eslint-env node */
module.exports = {
  test_page: 'tests/index.html?hidepassed',
  disable_watching: true,
  parallel: 4,
  launch_in_ci: [
    'Chrome'
  ],
  launch_in_dev: [
    'Chrome'
  ],
  browser_args: {
    Chrome: [
      '--headless',
      '--remote-debugging-port=9222'
    ]
  }
};