I have verified that rhel-system-roles.ha_cluster from rhel-system-roles-1.0.0-29.el8 works correctly in the following scenarios:
* custom cluster name
* disabling cluster autostart
* custom sequential node names that are different from hostnames
on one and three node cluster.
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 (rhel-system-roles bug fix and enhancement update), and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.