Prepare for fqdn on internal endpoints in keystone catalog

 * Adds hosts entries to each node to map
   <openstack_control_address> to <openstack_service_hostname>.<domain>

 * Adds appropriate DNS aliases to openstack API, barbican, novncproxy
   certs

Change-Id: I8fbd0f03a7c60291c66c5fd686052d18d4edc426
Related-Prod: PROD-24975
6 files changed