openstack-ansible/etc/openstack_deploy/conf.d/unbound.yml.example

# The infra nodes that will be running the Unbound DNS caching resolvers
unbound_hosts:
  infra1:
    ip: 172.20.236.111
  infra2:
    ip: 172.20.236.112
  infra3:
    ip: 172.20.236.113