[cbi-dev] Docker image with Xvnc working with Kubernetes agent?

[Mickael Istria <mistria@xxxxxxxxxx>]

Hi all,

I'm finally trying to create my own Docker image to run Wild Web Developer tests and runtime. WIP is at https://github.com/eclipse/wildwebdeveloper/blob/docker/docker/Dockerfile . The image seems correct locally (I can start vncserver, or at least it seems so) so I deployed it to hub.docker.com ( https://hub.docker.com/r/mickaelistria/wildwebdeveloper-build-test-dependencies/ ) to be able to reference it in our Jenkinsfile ( https://github.com/eclipse/wildwebdeveloper/blob/docker/Jenkinsfile#L15 ) and use it during build.

However, when the image is used on ci.eclipse.org, it's failing to start the vncserver with an error that looks like a user management issue:

`vncserver: Could not create //.vnc.` (from https://jenkins.eclipse.org/wildwebdeveloper/job/Wildwebdeveloper/job/docker/4/console ). This error makes me think it's because the current user of the Docker image is not named to it's not possible to infer a correct path.

So, from here, a couple of questions:

1. Does anyone already cover this scenario and can link to an existing Dockerfile or docker image which successfully runs I could use as baseline?

2. Can anyone advise of how I could fix that? Would defining the USER environment variable be a valid workaround?

Thanks in advance

--

Mickael Istria

Eclipse IDE developer, for Red Hat Developers