surahman commented on pull request #3710:
URL: https://github.com/apache/incubator-heron/pull/3710#issuecomment-932461676


   If it so happens that a Role is required it might [not be 
feasible](https://unofficial-kubernetes.readthedocs.io/en/latest/admin/authorization/rbac/)
 to set it up programmatically:
   
   > A user can only create/update a role if they already have all the 
permissions contained in the role, at the same scope as the role (cluster-wide 
for a `ClusterRole`, within the same namespace or cluster-wide for a `Role`).
   
   There is an example of a Role that can read a specific ConfigMap:
   ```yaml
   rules:
   - apiGroups: [""]
     resources: ["configmaps"]
     resourceNames: ["my-config"]
     verbs: ["get"]
   ```
   
   It might also be better to require the user to manually configure the Role 
in K8s than silently forcing it upon them.


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