Installing CSI Snapshot Controller

To enable the HPE SimpliVity CSI to take snapshots install the CSI Snapshot Controller on each cluster

Download the yaml files from the GitHub repo of CSI Snapshotter. Refer to the support information page to download the appropriate yamls according to the driver version.

• CSI Snapshot CRDs
• CSI Snapshot Controller

In the below examples we are using namespace kube-system, which is a good place to store infrastructure related resources in Kubernetes.

In setup-snapshot-controller.yaml, update the namespace and image version. The CSI snapshot controller image version should be a compatible version from the table in Support Information.

11 metadata:
12   name: snapshot-controller
13   namespace: kube-system    # Use kube-system namespace
14 spec:

27         - name: snapshot-controller
28           image: quay.io/k8scsi/snapshot-controller:v4.0.0

Update the namespace values in rbac-snapshot-controller.yaml

9  kind: ServiceAccount
10 metadata:
11   name: snapshot-controller
12   namespace: kube-system    # Use kube-system namespace
13
14 ---

47 kind: ClusterRoleBinding
48 apiVersion: rbac.authorization.k8s.io/v1
49 metadata:
50   name: snapshot-controller-role
51 subjects:
52   - kind: ServiceAccount
53     name: snapshot-controller
54     # replace with non-default namespace name
55     namespace: kube-system    # Use kube-system namespace
56 roleRef:

62 kind: Role
63 apiVersion: rbac.authorization.k8s.io/v1
64 metadata:
65   namespace: kube-system    # Use kube-system namespace
66   name: snapshot-controller-leaderelection

73 kind: RoleBinding
74 apiVersion: rbac.authorization.k8s.io/v1
75 metadata:
76   name: snapshot-controller-leaderelection
77   namespace: kube-system    # Use kube-system namespace
78 subjects:
79   - kind: ServiceAccount
80     name: snapshot-controller
81     namespace: kube-system    # Use kube-system namespace

(Optional) Enabling Fault Tolerance

Update "replica" and "leader-election" values in setup-snapshot-controller.yaml

14 spec:
15   serviceName: "snapshot-controller"
16   replicas: 2  # Update value to 2
17   selector:

29           args:
30             - "--v=5"
31             - "--leader-election=true" # Update value to True
32           imagePullPolicy: Always

Install the custom resource definition (CRD) for the Snapshot side car

$ kubectl create -f snapshot.storage.k8s.io_volumesnapshotclasses.yaml
$ kubectl create -f snapshot.storage.k8s.io_volumesnapshotcontents.yaml
$ kubectl create -f snapshot.storage.k8s.io_volumesnapshots.yaml

Install the snapshot-controller

$ kubectl create -f rbac-snapshot-controller.yaml
$ kubectl create -f setup-snapshot-controller.yaml