Comment 18 for bug 1712087

Great. The fiddly part will be destroying only volumes created by kolla. For containers we can filter by label, but this is not possible for volumes. That is why we look for volumes mounted by kolla containers.

A better solution would be to implement destroy via ansible, on a per-service basis. There is an old patch for this, but it will need some love: https://review.opendev.org/504592