# This YAML file contains all API objects that are necessary to run external
# CSI snapshotter.
#
# In production, this needs to be in separate files, e.g. service account and
# role and role binding needs to be created once, while stateful set may
# require some tuning.
#
# In addition, hostpath CSI driver is hardcoded as the CSI driver.
apiVersion: v1
kind: ServiceAccount
metadata:
  name: csi-snapshotter
 
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: external-snapshotter-runner
rules:
  - apiGroups: [""]
    resources: ["persistentvolumes"]
    verbs: ["get", "list", "watch", "create", "delete"]
  - apiGroups: [""]
    resources: ["persistentvolumeclaims"]
    verbs: ["get", "list", "watch", "update"]
  - apiGroups: ["storage.k8s.io"]
    resources: ["storageclasses"]
    verbs: ["get", "list", "watch"]
  - apiGroups: [""]
    resources: ["events"]
    verbs: ["list", "watch", "create", "update", "patch"]
  - apiGroups: [""]
    resources: ["endpoints"]
    verbs: ["list", "watch", "create", "update", "delete", "get"]
  - apiGroups: [""]
    resources: ["secrets"]
    verbs: ["get", "list"]
  - apiGroups: ["snapshot.storage.k8s.io"]
    resources: ["volumesnapshotclasses"]
    verbs: ["get", "list", "watch"]
  - apiGroups: ["snapshot.storage.k8s.io"]
    resources: ["volumesnapshotcontents"]
    verbs: ["create", "get", "list", "watch", "update", "delete"]
  - apiGroups: ["snapshot.storage.k8s.io"]
    resources: ["volumesnapshots"]
    verbs: ["get", "list", "watch", "update"]
  - apiGroups: ["apiextensions.k8s.io"]
    resources: ["customresourcedefinitions"]
    verbs: ["create", "list", "watch", "delete"]
 
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: csi-snapshotter-role
subjects:
  - kind: ServiceAccount
    name: csi-snapshotter
    namespace: default
roleRef:
  kind: ClusterRole
  name: external-snapshotter-runner
  apiGroup: rbac.authorization.k8s.io
 
---
kind: Service
apiVersion: v1
metadata:
  name: csi-snapshotter
  labels:
    app: csi-snapshotter
spec:
  selector:
    app: csi-snapshotter
  ports:
    - name: dummy
      port: 12345

---
kind: StatefulSet
apiVersion: apps/v1
metadata:
  name: csi-snapshotter
spec:
  serviceName: "csi-snapshotter"
  replicas: 1
  selector:
    matchLabels:
      app: csi-snapshotter
  template:
    metadata:
      labels:
        app: csi-snapshotter
    spec:
      serviceAccount: csi-snapshotter
      containers:
        - name: csi-provisioner
          image: xyang105/csi:csi-provisioner
          args:
            - "--provisioner=csi-hostpath"
            - "--csi-address=$(ADDRESS)"
            - "--connection-timeout=15s"
          env:
            - name: ADDRESS
              value: /csi/csi.sock
          imagePullPolicy: "IfNotPresent"
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
        - name: csi-snapshotter
          image: xyang105/csi:csi-snapshotter
          args:
            - "--csi-address=$(ADDRESS)"
            - "--connection-timeout=15s"
          env:
            - name: ADDRESS
              value: /csi/csi.sock
          imagePullPolicy: "IfNotPresent"
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
        - name: hostpath
          image: xyang105/csi:csi-hostpath
          args:
            - "--v=5"
            - "--endpoint=$(CSI_ENDPOINT)"
            - "--nodeid=$(KUBE_NODE_NAME)"
          env:
            - name: CSI_ENDPOINT
              value: unix:///csi/csi.sock
            - name: KUBE_NODE_NAME
              valueFrom:
                fieldRef:
                  apiVersion: v1
                  fieldPath: spec.nodeName
          imagePullPolicy: IfNotPresent
          securityContext:
            privileged: true
          volumeMounts:
            - name: socket-dir
              mountPath: /csi
      volumes:
        - name: socket-dir
          emptyDir: