Docker

Docker a wrapper around virtualisation interfaces including its own libcontainerd and LXC. See Docker (software) on enwiki. Wikimedia also runs its own docker-registry.

/apparmor

Installation

To install Docker on Debian: apt-get install docker.io (note it's NOT just "docker", that's an entirely unrelated package)

Publishing production images

To publish images in the operations/docker-images/production-images repository, log into package builder (currently deneb.codfw.wmnet) and run sudo build-production-images.

Updating CI docker images

TODO: this should be moved somewhere else

When updating CI images follow the documentation at mw:Continuous integration/Docker MediaWiki. The basic process is:

• Update the changelog of the appropriate image to force a docker image rebuild. You can use docker-pkg (see MediaWiki page above)
• Update the image version in the CI job specification