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

Gerrit User 15834 6703c5851f Update patch set 5 ... Patch Set 5: Code-Review+2 Workflow+1 Patch-set: 5 Reviewer: Gerrit User 15834 <15834@4a232e18-c5a9-48ee-94c0-e04e7cca6543> Label: Code-Review=+2 Label: Workflow=+1		2020-03-20 06:50:54 +00:00