Use case: as Kubernetes admin I want to define a StorageClass that provisions PVs with PersistentVolumeReclaimPolicy = "Retain" so users don't loose their data when they accidentally delete their PVCs.

API changes:

• Either "magic" annotation kubernetes.io/reclaim-policy: Retain
• Or a new StorageClass field sc.PersistentVolumeReclaimPolicy: Retain

Requested actions:

• Update the API.
• Update internal provisioning logic to respect this new annotation/field.
• Update docs.
• Announce that external provisioners need to respect this new annotation/field.

All these items are fairly easy if we agree on the design.

@kubernetes/sig-storage