nodepool_prod.pp class does not expose vhost_name parameter

The openstack_project::nodepool_prod manifest has this signature:

<snip>
class openstack_project::nodepool_prod(
  $mysql_root_password,
  $mysql_password,
  $nodepool_ssh_private_key = '',
  $nodepool_template = 'nodepool.yaml.erb',
  $sysadmins = [],
  $statsd_host = '',
  $jenkins_api_user ='',
  $jenkins_api_key ='',
  $jenkins_credentials_id ='',
  $rackspace_username ='',
  $rackspace_password ='',
  $rackspace_project ='',
  $hpcloud_username ='',
  $hpcloud_password ='',
  $hpcloud_project ='',
  $tripleo_username ='',
  $tripleo_password ='',
  $tripleo_project ='',
  $image_log_document_root = '/var/log/nodepool/image',
  $enable_image_log_via_http = true,
  $project_config_repo = '',
)
</snip>

This class contains ::nodepool class, which expose vhost_name as a parameter of the class, with a default value of "nodepool.openstack.org".

The fact that the openstack_project::nodepool_prod manifest lacks vhost_name parameter prevents configuring an "openstack nodepool prod" server with a hostname other than upstream value.