how to control access for pods/exec only in kubernetes rbac without pods create binded?

Question

I checked the kubernetes docs, find that pods/exec resources has no verb, and do not know how to only control access for it? Since I create a pod, someone else need to access it use 'exec' but cannot create anything in my cluster.

How to implement this?

Answer 1

Since pods/exec is a subresource of pods, If you want to exec a pod, you first need to get the pod, so here is my role definition.

kind: Role
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  namespace: default
  name: pod-reader
rules:
- apiGroups: [""]
  resources: ["pods", "pods/log"]
  verbs: ["get", "list"]
- apiGroups: [""]
  resources: ["pods/exec"]
  verbs: ["create"]