Allow Helm Chart Overlay Merges

[anthonyalayo]

Eschewed features

• This issue is not requesting templating, unstuctured edits, build-time side-effects from args or env vars, or any other eschewed feature.

What would you like to have added?

The ability to merge/override select parts of helmCharts between base and overlays.

Why is this needed?

I would assume its a very common pattern to roll out helm chart version updates across environments. At the moment, I need to keep helmCharts out of my base config and re-specify it in every overlay. It would be much cleaner to allow merge/overriding of parts, like version.

Can you accomplish the motivating task without this feature, and if so, how?

You have to copy/paste helmCharts in each overlay, and keep it out of the base. This is against the pattern that Kustomize is known / useful for.

What other solutions have you considered?

Not aware of other solutions.

Anything else we should know?

No response

Feature ownership

• I am interested in contributing this feature myself! 🎉

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