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

Gerrit User 15834 16addec423 Create change ... Uploaded patch set 1. Patch-set: 1 Change-id: Ic2e76d4f054f1666726cfc1b4f2c945393d3c8a9 Subject: Update install and configuration instructions Branch: refs/heads/master Commit: 9994fbdac3 Groups: 9994fbdac3		2019-05-24 08:55:47 +00:00