node-reader.yml

# To see if init containers need RBAC:
#
# $ kubectl -n kafka exec kafka-0 -- cat /etc/kafka/server.properties | grep broker.rack
# #init#broker.rack=# zone lookup failed, see -c init-config logs
# $ kubectl -n kafka logs -c init-config kafka-0
# ++ kubectl get node some-node '-o=go-template={{index .metadata.labels "failure-domain.beta.kubernetes.io/zone"}}'
# Error from server (Forbidden): User "system:serviceaccount:kafka:default" cannot get nodes at the cluster scope.: "Unknown user \"system:serviceaccount:kafka:default\""
#
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: node-reader
  labels:
    origin: github.com_Yolean_kubernetes-kafka
rules:
- apiGroups:
  - ""
  resources:
  - nodes
  verbs:
  - get
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: kafka-node-reader
  labels:
    origin: github.com_Yolean_kubernetes-kafka
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: node-reader
subjects:
- kind: ServiceAccount
  name: default
  namespace: kafka