Comment 2 for bug 1855190

That is true, but it looks like we (Cinder) are currently more invested in driving this effort to make sure that this functionality works and is tested.

I've started devstack work here:
https://review.opendev.org/#/c/697335/

Next step would be to improve that into something mergeable, and start working on some zuul config changes to enable this backend.

This should be tested in both Glance jobs, maybe we can also add it to the lio-barbican Cinder job.