Generate namespaces with a common base in an overlay

[cpjboon]

Hello,

I have a question, i have the following setup:

overlays
└── prd
└── kustomization.yaml
├── acc
│   └── kustomization.yaml
├── base
│   ├── kustomization.yaml
│    └── namespaces.yaml
├── dev   
│   └── kustomization.yaml
├── kustomization.yaml
├── prd
│   └── kustomization.yaml
└── tst
└── kustomization.yaml

A prd overlay that also has different environments, dev, tst, acc and prd.
And a common base. it's a bit unorthodox setup i know :)

In that base folder:

overlays/prd/base$ cat kustomization.yaml
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:

• namespaces.yaml

overlays/prd/base$ cat namespaces.yaml
apiVersion: v1
kind: Namespace
metadata:
name: webserver

apiVersion: v1
kind: Namespace
metadata:
name: proxy

So for every namespace, dev, tst, acc, prd, i want to generate a namespace like: dev-webserver, dev-proxy etc.
This works for things like configmaps but not for namespace anymore, with a namePrefix and a nameSuffix.
Is there another way to do this? I tried it with a configmap and then use namereference like this:

nameReference:

• version: v1
  kind: ConfigMap
  fieldSpecs:
  • version: v1
    kind: Namespace
    path: metadata/name

that works with one environment, but not with 2 or more:

error: accumulating resources: accumulation err='accumulating resources from './prd': '/overlays/prd/tst' must resolve to a file': recursed merging from path 'overlays/prd/tst': may not add resource with an already registered id: Namespace.v1.[noGrp]/webserver.[noNs]

it seems like kustomize does this nameReference after the whole config is loaded and has that base namespace registered.
Is there another way to do this?

Thanks in advance.