Recover volume data using a snapshot

10/05/2023 Contributors

Astra Control Provisioner provides rapid, in-place volume restoration from a snapshot using the TridentActionSnapshotRestore (TASR) CR. This CR functions as an imperative Kubernetes action and does not persist after the operation completes.

Astra Control Provisioner supports snapshot restore on the ontap-san, ontap-san-economy, ontap-nas, ontap-nas-flexgroup, azure-netapp-files, gcp-cvs, and solidfire-san drivers.

Before you begin

You must have a bound PVC and available volume snapshot.

Verify the PVC status is bound.
```
kubectl get pvc
```
Verify the volume snapshot is ready to use.
```
kubectl get vs
```

Steps

Create the TASR CR. This example creates a CR for PVC pvc1 and volume snapshot pvc1-snapshot.

cat tasr-pvc1-snapshot.yaml

apiVersion: v1
kind: TridentActionSnapshotRestore
metadata:
  name: this-doesnt-matter
  namespace: trident
spec:
  pvcName: pvc1
  volumeSnapshotName: pvc1-snapshot

Apply the CR to restore from the snapshot. This example restores from snapshot pvc1.

kubectl create -f tasr-pvc1-snapshot.yaml

tridentactionsnapshotrestore.trident.netapp.io/this-doesnt-matter created

Results

Astra Control Provisioner restores the data from the snapshot. You can verify the snapshot restore status.

kubectl get tasr -o yaml

apiVersion: v1
items:
- apiVersion: trident.netapp.io/v1
  kind: TridentActionSnapshotRestore
  metadata:
    creationTimestamp: "2023-04-14T00:20:33Z"
    generation: 3
    name: this-doesnt-matter
    namespace: trident
    resourceVersion: "3453847"
    uid: <uid>
  spec:
    pvcName: pvc1
    volumeSnapshotName: pvc1-snapshot
  status:
    startTime: "2023-04-14T00:20:34Z"
    completionTime: "2023-04-14T00:20:37Z"
    state: Succeeded
kind: List
metadata:
  resourceVersion: ""

In most cases, Astra Control Provisioner will not automatically retry the operation in case of failure. You will need to perform the operation again.
Kubernetes users without admin access might have to be granted permission by the admin to create a TASR CR in their application namespace.

Recover volume data using a snapshot

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