Just following up here to report back and close the loop:
On 21/08/2019 16:51, Jason Dillaman wrote:
It just looks like this was an oversight from the
OpenStack developers
when Nova RBD "direct" ephemeral image snapshot support was added [1].
I would open a bug ticket against Nova for the issue.
Done:
https://bugs.launchpad.net/nova/+bug/1841160
Thanks again for your help!
Cheers,
Florian