Overall Status

Volume snapshotting has been a GA feature since Kubernetes v1.20.

Supported CSI Spec Versions

1.0-1.5

Minimum Kubernetes version

1.20

Recommended Kubernetes version

1.20+

Container

docker pull k8s.gcr.io/sig-storage/snapshot-controller:v6.0.0
docker pull k8s.gcr.io/sig-storage/csi-snapshotter:v6.0.0
docker pull k8s.gcr.io/sig-storage/snapshot-validation-webhook:v6.0.0

Breaking Changes

API Removal

• Cherry-pick 704: Remove VolumeSnapshot v1beta1 APIs and generated functions. Please update to VolumeSnapshot v1 APIs as soon as possible. (#709, @RaunakShah)

Changes by Kind

API Change

• Add SourceVolumeMode field to VolumeSnapshotContents. (#665, @RaunakShah)
• Cherry-pick #683: Change SourceVolumeMode type to v1.PersistentVolumeMode. (#686, @RaunakShah)
• Update snapshotter module to v6 and client module to v5. (#670, @RaunakShah)
• Cherry-pick #673: Upgrade Volume Snapshot client to v6. (#673, @RaunakShah)

Feature

Snapshot Controller

• Cherry-pick #679: Changes to snapshot controller to add SourceVolumeMode to VolumeSnapshotContents. (#694, @RaunakShah)

Snapshot Validation Webhook

• Cherry-pick #680: Add webhook to make SourceVolumeMode immutable. (#701, @RaunakShah)
• Cherry-pick 704: Remove validation for VolumeSnapshot v1beta1 API objects from the snapshot validation webhook. (#709, @RaunakShah)
• Cherry-pick #688: Added admission webhook to ensure that only one VolumeSnapshotClass can be default for each CSI driver. To benefit from this validation, please update your webhook configuration as shown in deploy/kubernetes/webhook-example/admission-configuration-template. (#700, @shawn-hurley)
• Cherry-pick #674: Adding validation for VolumeSnapshotClass to only have a single default for a particular driver. (#693, @shawn-hurley)
• Cherry-pick #706: Adding RBAC file to webhook example for updated validating webhook. (#710, @shawn-hurley)

Full Changelog

https://github.com/kubernetes-csi/external-snapshotter/blob/v6.0.0/CHANGELOG/CHANGELOG-6.0.md