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

Gerrit User 15834 e0f657f1a6 Update patch set 2 ... Patch Set 2: Ok, I will merge as everything is addressed Patch-set: 2 Label: Verified=0		2020-05-04 09:18:23 +00:00
0607b6520e9883c74384969510626aa9913d3bb9	Update patch set 2	2020-04-22 06:52:00 +00:00