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

Gerrit User 22348 f758a64ad0 Update patch set 2 ... Patch Set 2: Verified+2 Build succeeded (gate pipeline). - openstack-tox-pep8 https://zuul.opendev.org/t/openstack/build/1fa5e2a92a074ac295ec2c40af115464 : SUCCESS in 5m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d7c99dc86d6d4c7ab7e2753cce0c07a6 : SUCCESS in 4m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/048018210c84468f9f9e1cba779bec19 : SUCCESS in 4m 16s - openstack-tox-lower-constraints https://zuul.opendev.org/t/openstack/build/2ce75be82704486db609091430a7ff1d : SUCCESS in 5m 00s - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/1fa68f70591a48e09d1f9c4a26f032b7 : SUCCESS in 4m 00s Patch-set: 2 Tag: autogenerated:zuul:gate Reviewer: Gerrit User 22348 <22348@4a232e18-c5a9-48ee-94c0-e04e7cca6543> Label: Verified=+2		2020-04-17 12:06:25 +00:00
8a3723b43ee0bec3edb4cf1d537a15933e03b180	Update patch set 1	2020-04-17 09:43:55 +00:00