The solution for BZ#1672160 also applies for OSP14, as the pre-upgrade tasks were intended to validate the correct server state before upgrading from a non-containerized overcloud to a containerized one. Since OSP12 all our upgrades are from containerized to containerized overcloud, so these tasks do not make much sense any more in the containerized services templates. This BZ was opened to track and merge the same fix for BZ#1672160 into OSP14.
According to our records, this should be resolved by openstack-tripleo-heat-templates-9.3.1-0.20190513171752.el7ost. This build is available now.
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/RHBA-2019:3745