FFU 13 to 16.1: Ceph upgrade run fails to find ceph-mon if controller has FQDN hostname

Solution Verified - Updated -

Issue

  • When running the the upgrade_tasks and post_upgrade_tasks for ceph during FFU upgrade from RHOSP13 to 16.1 ceph-mon-${HOSTNAME} does not match the containers name during system_upgrade on the ceph-node.
["Error: no container with name or ID ceph-mon-overcloudctr001.test.lab.corp found: no such container"], "stdout": "", "stdout_lines": []}

Environment

Red Hat OpenStack Platform(RHOSP) 13

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