Build environment should be available to kustomize

[jacekszlachtass]

Summary

Build environment should be available to sources using kustomize.
At the moment this is not supported: https://argo-cd.readthedocs.io/en/stable/user-guide/kustomize/#build-environment

Motivation

It is possible to use env variables with kustomize, please see these links:
https://rm3l.org/using-system-envvars-with-kustomize/
https://kubernetes.io/docs/tasks/manage-kubernetes-objects/kustomization/#configmapgenerator
kubernetes/website#30348

Proposal

How do you think this should be implemented?

I have no idea how, but I am guessing this could be done the same way as for helm, jsonnet and custom tools.

[jannfis]

Maybe this could be extended to also set arbitrary environment variables for kustomize applications, instead of only passing build environment?

[alexmt]

This has been implemented already. Please see latest version of build environment documentation: https://argo-cd.readthedocs.io/en/latest/user-guide/build-environment/

[crenshaw-dev]

Closing since the original use case is solved. Added an issue for Jann's suggestion.