Can't create resources in a child namespace while authenticating to a parent namespace

[christian-konrad]

I can't create resources in a child namespace while authenticating to a parent namespace, since I can specify a single namespace only:

apiVersion: redhatcop.redhat.io/v1alpha1
kind: <Any Resource>
metadata:
  name: kubernetes-cluster-<name>                     # mount name
spec:
  namespace: "<CHILD-NAMESPACE>"
  path: "..."
  type: kubernetes
  authentication:          							  
    path: kubernetes-cluster-mgmt # can't specify an auth moun in the parent namespace!
    role: <name>  

This requires us to replicate the auth engine from the parent to the child namespaces. In our multi-tenancy model, this requires us to create an entity with aliases for each auth mount to limit client costs.