OpenStack host maintenance and upgrade in interaction with application on top of it

Gerrit User 15834 f9dc836f7a Create change ... Uploaded patch set 1. Patch-set: 1 Change-id: I91636f9cf6a4568badc7314bed9101da62924c2b Subject: Add instructions to test workflows Branch: refs/heads/master Commit: 6863e41c1a Groups: 6863e41c1a		2020-03-20 08:31:52 +00:00