# ClusterRole + RoleBinding

# 用户权限范围限制在 RoleBinding 的命名空间内（只能访问default空间内的configmap）

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: configmap-reader
rules:

  - apiGroups: [ "" ]
    resources: [ "configmap" ]
    verbs: [ "get", "watch", "list" ]

---

apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: read-configmap
  namespace: default
subjects:

  - kind: User
    name: user2
    namespace: default
    roleRef:
      kind: ClusterRole
      name: configmap-reader
      apiGroup: rbac.authorization.k8s.io