Description of problem:

We've seen OSE3 documentation talks about recycling volumes is only supported in NFS and HostPath ( https://docs.openshift.org/latest/architecture/additional_concepts/storage.html#pv-recycling-policy ) but Ceph backend shows recycle as a persistentVolumeReclaimPolicy.  A bugzilla ticket is opened to fix documentation: https://bugzilla.redhat.com/show_bug.cgi?id=1295460

But, the thing is, what will be the procedure to manually recycle the volume? Should the admin user delete the pv, then delete the volume in the storage backend and recreate it?

The recycling not implemented when using ceph backend. AFAIK, the recycling is just a special pod (ose-recycler) that uses the previously released volume and runs an "rm -Rf /" isn't it?

I guess we can also have generic recycler that works with all volumes type or in this case it will be better to have rbd recycler.

If we set the reclaimpolicy to recycle for ceph pv, logs say:

messages:Jan  4 04:56:16 ose1master atomic-openshift-master: I0104 04:56:16.019862    9525 persistentvolume_recycler_controller.go:94] Reclaiming PersistentVolume[ceph-vol13]
messages:Jan  4 04:56:16 ose1master atomic-openshift-master: I0104 04:56:16.023230    9525 persistentvolume_recycler_controller.go:126] Recycling PersistentVolume[ceph-vol13]
messages:Jan  4 04:56:16 ose1master atomic-openshift-master: E0104 04:56:16.023259    9525 persistentvolume_recycler_controller.go:118] Could not recycle volume spec: Could not find recyclable volume plugin for spec: no volume plugin matched


Version-Release number of selected component (if applicable):
3.1

How reproducible:
Always

Steps to Reproduce:
1. As per https://docs.openshift.org/latest/architecture/additional_concepts/storage.html#pv-recycling-policy
2.
3.

Actual results:
Setting the reclaimpolicy to recycle for ceph pv fails.

Expected results:
Setting the reclaimpolicy to recycle for ceph pv shall be successful.

Additional info: