openstack overcloud upgrade run fails during FFU from 16.2 to 17.1 due to 'pacemaker_remote_short_node_names_upgraded' is undefined error

Issue

• During the FFU upgrade from Red Hat OpenStack Platform 16.2 to 17.1, openstack overcloud upgrade run --yes --stack <stack> --debug --limit allovercloud,undercloud --playbook all command fails with the following error messages:

  openstack overcloud upgrade run --yes --stack overcloud --debug --limit allovercloud,undercloud --playbook all
     :
  2023-08-28 10:32:20.132475 | 525400dd-aae4-5ccd-59cf-000000000b46 |    SKIPPED | set pacemaker remote upgrade node facts from the limit option | overcloud-novacompute-2 | item=overcloud-novacompute-2
  2023-08-28 10:32:20.135555 | 525400dd-aae4-5ccd-59cf-000000000b46 |     TIMING | set pacemaker remote upgrade node facts from the limit option | overcloud-novacompute-2 | 0:03:27.951075 | 0.16s
  2023-08-28 10:32:20.137179 | 525400dd-aae4-5ccd-59cf-000000000b47 |      FATAL | debug | overcloud-novacompute-0 | error={"msg": "The task includes an option with an undefined variable. The error was: 'pacemaker_remote_short_node_names_upgraded' is undefined\n\nThe error appears to be in '/home/stack/overcloud-deploy/overcloud/config-download/overcloud/Compute/upgrade_tasks_step1.yaml': line 17, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    - item.split('.')[0] in ansible_limit.split(':')\n  - debug:\n    ^ here\n"}
  2023-08-28 10:32:20.137921 | 525400dd-aae4-5ccd-59cf-000000000b47 |     TIMING | debug | overcloud-novacompute-0 | 0:03:27.953466 | 0.09s
  2023-08-28 10:32:20.138879 | 525400dd-aae4-5ccd-59cf-000000000b47 |      FATAL | debug | overcloud-novacompute-1 | error={"msg": "The task includes an option with an undefined variable. The error was: 'pacemaker_remote_short_node_names_upgraded' is undefined\n\nThe error appears to be in '/home/stack/overcloud-deploy/overcloud/config-download/overcloud/Compute/upgrade_tasks_step1.yaml': line 17, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    - item.split('.')[0] in ansible_limit.split(':')\n  - debug:\n    ^ here\n"}
  2023-08-28 10:32:20.139455 | 525400dd-aae4-5ccd-59cf-000000000b47 |     TIMING | debug | overcloud-novacompute-1 | 0:03:27.954999 | 0.07s
  2023-08-28 10:32:20.220932 | 525400dd-aae4-5ccd-59cf-000000000b47 |      FATAL | debug | overcloud-novacompute-2 | error={"msg": "The task includes an option with an undefined variable. The error was: 'pacemaker_remote_short_node_names_upgraded' is undefined\n\nThe error appears to be in '/home/stack/overcloud-deploy/overcloud/config-download/overcloud/Compute/upgrade_tasks_step1.yaml': line 17, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    - item.split('.')[0] in ansible_limit.split(':')\n  - debug:\n    ^ here\n"}
    :
  overcloud-controller-0     : ok=122  changed=51   unreachable=0    failed=0    skipped=132  rescued=0    ignored=2
  overcloud-controller-1     : ok=96   changed=28   unreachable=0    failed=0    skipped=158  rescued=0    ignored=2
  overcloud-controller-2     : ok=96   changed=28   unreachable=0    failed=0    skipped=158  rescued=0    ignored=2
  overcloud-novacompute-0    : ok=18   changed=6    unreachable=0    failed=1    skipped=12   rescued=0    ignored=2
  overcloud-novacompute-1    : ok=17   changed=6    unreachable=0    failed=1    skipped=12   rescued=0    ignored=2
  overcloud-novacompute-2    : ok=17   changed=6    unreachable=0    failed=1    skipped=12   rescued=0    ignored=2
  undercloud                 : ok=5    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=2