feat(longhorn): Add snapshot classes for longhorn

Reference:
https://longhorn.io/docs/1.5.3/snapshots-and-backups/csi-snapshot-support/enable-csi-snapshot-support/

infrastructure/longhorn/kustomization.yaml

@@ -6,6 +6,7 @@ resources:
   - repository.yaml
   - release.yaml
   - monitoring.yaml
+  - snapshot.yaml
   # Add network policies
   - ../../shared/networkpolicies/allow-from-ingress.yaml
   - ../../shared/networkpolicies/allow-from-monitoring.yaml

infrastructure/longhorn/snapshot.yaml

+---
+kind: VolumeSnapshotClass
+apiVersion: snapshot.storage.k8s.io/v1
+metadata:
+  name: longhorn-snapshot
+driver: driver.longhorn.io
+deletionPolicy: Delete
+parameters:
+  type: snap
+---
+kind: VolumeSnapshotClass
+apiVersion: snapshot.storage.k8s.io/v1
+metadata:
+  name: longhorn-backup
+driver: driver.longhorn.io
+deletionPolicy: Delete
+parameters:
+  type: bak
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