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

Gerrit User 15834 ede2ca4bfb Create patch set 4 ... Uploaded patch set 4. Patch-set: 4 Subject: Adding API documentation Commit: 91c2df8f0b Groups: 91c2df8f0b		2018-11-08 10:14:27 +00:00
6b6ddc244ae364ab363fb31f0e8fe6974fa5212d	Update patch set 2	2018-11-07 14:58:45 +00:00
cff7fe568eed41882350514e5ad40e328457b254	Update patch set 3	2018-11-08 10:14:01 +00:00