/usr/share/tripleo-heat-templates/environments/use-dns-for-vips.yaml is in python-tripleo-heat-templates 5.2.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | # A Heat environment file which can be used to disable the writing of the VIPs
# to the /etc/hosts file in the overcloud. Use this in case you have a working
# DNS server that you will provide for the overcloud.
resource_registry:
OS::TripleO::Services::VipHosts: OS::Heat::None
|