anchor.diff:            - nova-cert         # worker
             - nova-consoleauth  # worker
             - nova-novncproxy-websocket # worker
  -          - controller        # node cluster
           hints:
             - cinder-control-plane
             - glance
  
positive.code:         members:
            - ceilometer-api
            - ceilometer-api-check
            - controller
          hints:
            - keystone
            - rabbitmq
  
negative.code:           - neutron-metadata
            - neutron-openvswitch
  <% end -%>
          hints:
            - keystone
            - mysql
  