configurable pv recyclers

pkg/controller/persistentvolume/persistentvolume_recycler_controller.go

@@ -35,6 +35,8 @@ import (
 	"k8s.io/kubernetes/pkg/watch"
 )
 
+var _ volume.VolumeHost = &PersistentVolumeRecycler{}
+
 // PersistentVolumeRecycler is a controller that watches for PersistentVolumes that are released from their claims.
 // This controller will Recycle those volumes whose reclaim policy is set to PersistentVolumeReclaimRecycle and make them
 // available again for a new claim.