External Snapshotter
External snapshotter is used to create Volume Snapshots of the Persistent Volumes.
Documentation
- https://github.com/kubernetes-csi/external-snapshotter#readme
- https://kubernetes.io/blog/2020/12/10/kubernetes-1.20-volume-snapshot-moves-to-ga/
- https://kubernetes.io/docs/concepts/storage/volume-snapshots/
Troubleshooting
Sometimes, VolumeSnapshots remain on the cluster long after a backup from Velero or a similar application has been deleted. We need to check the snapshots on our cloud provider periodically to avoid spending on cloud costs for unused snapshots. Check more details on the Velero Helm chart readme