
The pre-install hooks for several of the barbican templates [0] cause upgrade failures when using helm2. Similar to what was done for keystone [1], this change wraps them in a conditional that can be toggled off for anyone still using helm2. 0: https://review.opendev.org/c/openstack/openstack-helm/+/782710 1: https://review.opendev.org/c/openstack/openstack-helm/+/785517 Change-Id: I6a160916ec65d73eef1aaffb510c85ee7fb0d501