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

Gerrit User 15834 2d26c82dc3 Create change ... Uploaded patch set 1. Patch-set: 1 Change-id: I794b11a8684f5fc513cb8f5affcd370ec70f3dbc Subject: Detailed session information and enhancements Branch: refs/heads/master Commit: 8a3723b43e Groups: 8a3723b43e		2020-04-17 09:32:44 +00:00