As a cloud operator I want to be able to have working API services for my cloud in between upgrade steps so that users of my cloud have minimal donwtime when they are not able to manipulate with their VMs.
After major-upgrade-composable-steps.yaml I was able to spawn new instances/create networks/routers, reach instance via floating IP, create and attach volume. After upgrading 1/2 compute nodes I was able to spawn new instances/create networks/routers, reach instance via floating IP, create and attach volume.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2017:1245