SnapshotPolicy

A Kubernetes controller for use in conjuction with VolumeSnapshot. This controller will create and retain volumesnapshot objects as declared.

Build

Check this out at $GOPATH/src/github.com/cisco-sso/snapshotpolicy

dep ensure
go build .

Or simply run docker build . anwywhere where this is checked out.

Example SnapshotPolicy

See artifacts/examples

apiVersion: snapshotpolicy.ciscosso.io/v1alpha1
kind: snapshotpolicy
metadata:
  name: demo-pvc-policy
spec:
  claims:
  - demo-pvc
  unit: minute
  period: 1
  retention: 3
  strategy:
    name: inuse

The above snapshot policy will create volume snapshots of the PersistentVolumeClaim named demo-pvc every 1 minute and retain 3 snapshots. Each time the control loop is ran when 3 snapshots exist one will be deleted.

Strategy InUse

A strategy has been added to perform no operation prior to creating the snapshot. Annotations have been added in the following branch of volume snapshot to achieve this and only support the openstack provider. https://github.com/cisco-sso/external-storage/tree/openstack-in-use-snapshots