kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: cluster-autoscaler
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
rules:
  # leader election
  - apiGroups: ["coordination.k8s.io"]
    resources: ["leases"]
    verbs: ["create"]
  - apiGroups: ["coordination.k8s.io"]
    resources: ["leases"]
    resourceNames: ["cluster-autoscaler"]
    verbs: ["get", "update", "patch", "delete"]
  # accessing & modifying cluster state (nodes & pods)
  - apiGroups: [""]
    resources: ["nodes"]
    verbs: ["get", "list", "watch", "update", "patch"]
  - apiGroups: [""]
    resources: ["pods"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["pods/eviction"]
    verbs: ["create"]
  # read-only access to cluster state
  - apiGroups: [""]
    resources: ["services", "replicationcontrollers", "persistentvolumes", "persistentvolumeclaims"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["apps"]
    resources: ["daemonsets", "replicasets"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["apps"]
    resources: ["statefulsets"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["batch"]
    resources: ["jobs"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["policy"]
    resources: ["poddisruptionbudgets"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["storageclasses", "csinodes"]
    verbs: ["get", "list", "watch"]
  # misc access
  - apiGroups: [""]
    resources: ["events"]
    verbs: ["create", "update", "patch"]
  - apiGroups: [""]
    resources: ["configmaps"]
    verbs: ["create"]
  - apiGroups: [""]
    resources: ["configmaps"]
    resourceNames: ["cluster-autoscaler-status"]
    verbs: ["get", "update", "patch", "delete"]
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: cluster-autoscaler
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
subjects:
  - kind: User
    name: cluster-autoscaler
    namespace: kube-system
roleRef:
  kind: ClusterRole
  name: cluster-autoscaler
  apiGroup: rbac.authorization.k8s.io