How to launch --headless on Docker or wercker?

Hi. I want to run ChromeHeadless on CI services.

I could not launch google-chrome --headless because the following error:

Failed to move to new namespace: PID namespaces supported, Network namespace supported, but failed: errno = Operation not permitted

Is there some workarounds?

• CI conf script: https://github.com/Quramy/angular-karma-chrome-headless-demo/blob/master/wercker.yml#L28
• result of running on wercker CI: https://app.wercker.com/Quramy/angular-karma-chrome-headless-demo/runs/build/590c7c4da73a560001067c6e?step=590c7c514a016c0001f00fbe

I tried to run in local env(macOS Chrome canary), and it works well.

[hoeck]

There is no need to start a privileged container, turning off the chrome sandbox with --no-sandbox is enough. Added the following to my karma.conf.js:

    browsers: ['ChromeHeadlessNoSandbox'],
    customLaunchers: {
        ChromeHeadlessNoSandbox: {
            base: 'ChromeHeadless',
            flags: [
                '--no-sandbox', // required to run without privileges in docker
                '--user-data-dir=/tmp/chrome-test-profile',
                '--disable-web-security'
            ]
        }
    },

[andybry]

Hi,

I was getting this issue as well. For me adding the --privileged flag when running docker run resolved the issue.

The complete command I ran when starting the Docker container was: docker run -it --privileged -v $(pwd):${MOUNT_POINT} ${DOCKER_IMAGE} bash

Hope that helps you too!