# This YAML file contains all RBAC objects that are necessary to run external
# CSI attacher.
#
# In production, each CSI driver deployment has to be customized:
# - to avoid conflicts, use non-default namespace and different names
#   for non-namespaced entities like the ClusterRole
# - decide whether the deployment replicates the external CSI
#   attacher, in which case leadership election must be enabled;
#   this influences the RBAC setup, see below

apiVersion: v1
kind: ServiceAccount
metadata:
  name: csi-attacher
  # replace with non-default namespace name
  namespace: default

---
# Attacher must be able to work with PVs, nodes and VolumeAttachments
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: external-attacher-runner
rules:
  - apiGroups: [""]
    resources: ["persistentvolumes"]
    verbs: ["get", "list", "watch", "update"]
  - apiGroups: [""]
    resources: ["nodes"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["csinodes"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["volumeattachments"]
    verbs: ["get", "list", "watch", "update"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: csi-attacher-role
subjects:
  - kind: ServiceAccount
    name: csi-attacher
    # replace with non-default namespace name
    namespace: default
roleRef:
  kind: ClusterRole
  name: external-attacher-runner
  apiGroup: rbac.authorization.k8s.io

---
# Attacher must be able to work with configmaps or leases in the current namespace
# if (and only if) leadership election is enabled
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  # replace with non-default namespace name
  namespace: default
  name: external-attacher-cfg
rules:
# access to configmaps is only supported for backwards compatibility reasons
# and can be removed once you are uses Leases (--leader-election-type=leases)
- apiGroups: [""]
  resources: ["configmaps"]
  verbs: ["get", "watch", "list", "delete", "update", "create"]
- apiGroups: ["coordination.k8s.io"]
  resources: ["leases"]
  verbs: ["get", "watch", "list", "delete", "update", "create"]

---
kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: csi-attacher-role-cfg
  # replace with non-default namespace name
  namespace: default
subjects:
  - kind: ServiceAccount
    name: csi-attacher
    # replace with non-default namespace name
    namespace: default
roleRef:
  kind: Role
  name: external-attacher-cfg
  apiGroup: rbac.authorization.k8s.io
