containerapp : allow creating a new revision both with a target label (preview) and a base revision

[RemyBoyer]

Related commands

az containerapp update and az containerapp revision copy

Is your feature request related to a problem? Please describe.

When using the Deployment labels (preview) revision mode, we want, for each label, to use the latest revision of the label as the "base" for the new revision.

We can set --from-revision using az containerapp revision copy, but we can't set --target-label.
We can set --target-label using az containerapp update, but we can't set --from-revision.

The default behavior of ACA if I'm not mistaken is to use the latest created revision both for the target label but also for the revision to copy from.

So, it seems that we can't have labels with their own "lifecycle", where each revision is created from the previous one with the same label, using az cli.

Describe the solution you'd like

Ideally, we should:

• Be able to set --from-revision with az containerapp update
• And be able to set --target-label with az containerapp revision copy

Or any other solution that allows us to have labels that are considered kind of "silos".

Describe alternatives you've considered
Listed above

[yonzhan]

Thank you for opening this issue, we will look into it.