Docker release notes

[rarkins]

1. datasource returns GitHub source repo
2. unify docker Pr body template with default

[rarkins]

Because docker registries have no metadata for source repo, I can’t think of any solution except hardcoding mappings within Renovate from docker image to GitHub repo. Also in many cases the user probably prefers release notes from the true source (eg node.js repo) than the image source/wrapper.

[mxey]

What would be better than nothing is checking if there's a matching GitHub repository (or a Gitlab repository on a configurable list of Gitlab instances?) and using that, because often the names line up.

For example:

• the Docker image quay.io/coreos/prometheus-operatorcomes from GitHub repository https://github.com/coreos/prometheus-operator.
• When using Gitlab's included Docker Registry, the paths will match, just the domain will be different. Image docker-registry.example.com/foo/bar will come from repository gitlab.example.com/foo/bar.

I also wouldn't mind configuring a list of patterns and mappings once, and then not have to go hunt for release notes anymore. For example, a list of regular expressions that turns the image names into repository URLs. That would cover more unusual registries like k8s.gcr.io

In addition, the Label Schema for Docker images has a label vcs-url to reference the Git repository that the image is built from.

The Docker Hub also supports automatic builds where you can find a link to the source repository on the page for the Docker image.

[rarkins]

First step we should support that vcs-url schema in case anyone's using it.

Next step is we can code in some known mappings (guesses).

Final step would be to allow manual overrides like we have for npm and pypi.

Note: I'm considering to move this manual mapping into lib/datasource/index.js to avoid reimplementing it in each individual datasoure.

[renovate-bot]

🎉 This issue has been resolved in version 14.39.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀