Label `org.opencontainers.image.source`

[Roland Franssen :)]

Hi,

See eg. mlocati/docker-php-extension-installer#848

So we get transparent dependency updates in renovate PRs

This could be handled in Dockerfile, or 'label on build' during workflow action, or rely on docker/metadata-action which also takes care of it. (source should point to https://github.com/composer/composer)

[Rob]

I will accept a PR to the relevant Dockerfile's.

[Rob]

Are you sure the source should point to composer/composer though?

[Roland Franssen :)]

The goal is to get a changelog for composer/composer@2.7.1...2.7.2 yes

org.opencontainers.image.source URL to get source code for building the image (string)

'source code' is relative, so IMHO it plays out :) then again, at this point, im not sure how other integrations would behave.

From renovate POV im not sure it can get a changelog for this repo, since there are no tags, nor GH releases here.

Im tempted to just try it :)