title: angular-cli - Use multiple karma.conf.js
body: <p>I am using angular-cli and I want to use two karma.conf.js files for testing.</p>
  
  <ol>
  <li><p>For CI : For which I am using Headless Chrome</p>
  
  <p>customLaunchers: {</p>
  
  <blockquote>
  <pre><code>  ChromeHeadless: {
      base: 'Chrome',
      flags: [
        '--headless',
        '--disable-gpu',
        // Without a remote debugging port, Google Chrome exits immediately.
        '--remote-debugging-port=9222',
      ],
    }
  }
  </code></pre>
  </blockquote></li>
  <li><p>For Dev : For which I am using Chrome.</p></li>
  </ol>
  
  <p>Is there any way that I could switch betwwen two karma.conf.js based on an argument value.</p>