branch ambiguously defined for ImageUpdateAutomation as well as for git repo

[davidkarlsen]

https://toolkit.fluxcd.io/guides/image-update/:
ImageUpdateAutomation takes a branch parameter, but so does the git-repo it refers, this seems ambiguous to me, you want to refer the git repo it was defined in, and that's already defined in the GitRepository - hence it should be sufficient with the gitRepositoryRef.

spec:
checkout:
branch: main <--
gitRepositoryRef:
name: flux-system <-- this repo already has a branch defined

Maybe a bit related to #85

[squaremo]

Also pertinent: the discussion in fluxcd/flux2#665

[pjbgf]

@davidkarlsen thank you for reporting this. This has been fixed in version v0.9.0 with the introduction of API version v1alpha2.

The change allows for ImageUpdateAutomation to optionally set checkout references in the same way as in the GitRepository objects and when not set it defaults to the value set in the GitRepository references to by the sourceRef field.

For more information, including the migration path, please check the documentation.

I will be closing this issue now, but feel free add a comment here in case you want this reopened.