The RBD clone v2 API allows us to delete images that are present in a chain of RBD image dependencies. This RFE tracks test cases related to deletion of volumes when using the clone v2 API.
I'm envisioning a new CinderRbdTrashPurgeInterval THT parameter. But, as discussed in an email thread, the larger efforts will likely involve ceph-ansible and cephadm.
The THT part of this is now tracked by bug 1999155.
*** Bug 2011588 has been marked as a duplicate of this bug. ***
We are postponing this RFE to 17.1 because we don't yet have sufficient coverage upstream and we won't be able to support this for 17.0GA. 17.1 RFE https://bugzilla.redhat.com/show_bug.cgi?id=2044870