Ability to customise values section when deploying a helm chart

[mcbenjemaa]

Summary

I want to customise and patch argocd application resources using kustomize,
there's no support for patching values because spec.source.helm.values is a string.

The only way is to patch with spec.source.helm.parameters but that's annoying when you have many nested values.

Motivation

I'm maintaining apps of apps for many platforms, and I would avoid DRY.

Using kustomize to customise my apps in different platforms/ and environments without the need to replicate manifests. single source of truth for my platforms.

Proposal

How do you think this should be implemented?

Add a field that holds values as raw yaml instead of string (make it backward compatible of course!)

I was assuming that argocd application has a field that supports yaml (like crossplane provider helm does https://github.com/crossplane-contrib/provider-helm/blob/master/apis/release/v1beta1/types.go#L71)

This is a super important feature!

[Joibel]

This is the problem I have written https://github.com/crumbhole/argocd-lovely-plugin to solve for myself.

[joggeli34]

This would also be handy for changing the values with yq more easily. We are using this to change the image tags when releasing a new image directly from a ci/cd pipeline.

[crenshaw-dev]

Closing in favor of duplicate #2936