Create a Block Volume Snapshot

To create a snapshot of a Kubernetes volume using a Kubernetes YAML configuration file:

Create a YAML configuration file that adds a volume snapshot. In the file (see the example below for correct indentation and line breaks when specifying the keywords):
- In medadata:
  - name is the Persistent Volume Claim (PVC) name to store the snapshot.
- In spec:
  - volumeSnaphotClassName: the name of the block volume snapshot class.
  - In source:
    persistentVolumeClaimName is the PVC name for the block volume being protected.
For example:
```
apiVersion: snapshot.storage.k8s.io/v1
kind: VolumeSnapshot
metadata:
  name: snapshot-pvc-1
spec:
  volumeSnapshotClassName: vastdata-snapshot
  source:
    persistentVolumeClaimName: vast-pvc-1
```

Apply the YAML configuration file:

kubectl apply -f vast-csi-deployment.yaml

Verify that the PVC snapshot has been created with the following command:

kubectl get vs

The output is similar to the following:

NAME           READYTOUSE SOURCEPVC  SOURCESNAPSHOTCONTENT RESTORESIZE SNAPSHOTCLASS      SNAPSHOTCONTENT                                  CREATIONTIME AGE
snapshot-pvc-1 true       vast-pvc-1 0                                 vastdata-snapshot  snapcontent-8b1627cc-d50a-4bdb-a1b4-67931d36eb85 50m          49m