Where to locate this file? https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/fast_forward_upgrades/assembly-preparing_for_openstack-platform_upgrade#annotations:c5687f5b-e3c6-491c-b7ae-7629ec6ec60f
*** Bug 1657521 has been marked as a duplicate of this bug. ***