Write Back to kustomization.yml

[iamnoah]

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

I like my overrides checked in to git. While .argocd-source.yml is nice, in practice, I find that I want to use the overriden images for other purposes too, e.g., setting up a local Minikube environment. It sucks that I can't get updated images when using the same base with local kustomize. The end result is that my local environment has to be manually and painstakingly updated while my dev environment is always up to date.

Describe the solution you'd like

Update kustomization.yml instead. Can be done easily with kustomize edit set image. I think it would just look like one more write back method, and be implemented as such.

Describe alternatives you've considered

Other options I considered:

• Run a script in my CI that parses the file and runs the right kustomize edit set image commands. That's yet another commit, and increases the odds of causing some kind of weird CI+CD feedback loop.
• A kustomize plugin - painful for end users to consume.

I'll probably do this myself in the next few days and submit a PR, but thought I should put this in to see if anyone else has thoughts on it.