Add recursive user manifests

[markusheinemann]

see #1313

How to Test

1. Create the following files inside of extra-manifests:

kustomization.yaml.tpl

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

resources:
  - subfolder

subfolder/kustomization.yaml.tpl

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

resources:
  - namespace.yaml

subfolder/namespace.yaml.tpl

apiVersion: v1
kind: Namespace
metadata:
  name: mynamespace

2. Create a cluster using terrafom apply

3. Check if the resource has been applied: kubectl get ns

--> It work's on my machine 🤣

[mysticaltech]

@markusheinemann Thanks for this. Looking good. Please if you could tweak the docs for this, especially in the examples section in the readme and other relevant places (if this is mentioned there, like kube.tf), it would be great.

[markusheinemann]

@markusheinemann Thanks for this. Looking good. Please if you could tweak the docs for this, especially in the examples section in the readme and other relevant places (if this is mentioned there, like kube.tf), it would be great.

I have updated the related docs and updated the examples as well. I am happy about your feedback.

[markusheinemann]

Actual the provided solution will not work due to hashicorp/terraform#16330. I'm currently looking for a workaround

[mysticaltech]

Awesome @markusheinemann! Please let me know when it's working.

[mysticaltech]

@markusheinemann What about now?

[markusheinemann]

lgtm. I think the PR can be merged in my eyes. Can you please rerun the workflow?

PS. Sorry for closing the PR due to an oversight

[mysticaltech]

Thanks again for this @markusheinemann, awesome!