OpenNebula

I attempted to create a volatile swap disk which fails as it appears Nebula attempts to use RBD Kernel driver to map the device and newer RBD features (object map, exclusive lock) are not supported by RBD kernel driver.

The problem is:
Upon terminating the virtual machine the volatile disks which were created, yet never attached to the VM are not cleared out of ceph.
The Volatile disks which were part of the template, however, are removed.

It is unclear to me if they aren't removed because they are not part of the template or because they weren't successfully attached initially.

I imagine that it is because they did not attach as if you wanted a disk to persist beyond termination you would use a persistent datablock.

I suspect the desired outcome is that even volatile disks which do not successfully attach should be cleaned up upon VM termination.

Nebula 5.0.2 Ceph 10.2.2