anchor.diff:  Q_ML2_PLUGIN_TYPE_DRIVERS=local,flat,gre
   Q_ML2_PLUGIN_MECHANISM_DRIVERS=openvswitch
   
  -<% if use_heat == true %>enable_service heat
  +<% if @use_heat == true %>enable_service heat
   enable_service h-api
   enable_service h-api-cfn
   enable_service h-api-cw
   enable_service h-eng<% end %>
   
  -<% if use_ceilometer == true %>enable_service ceilometer-acompute
  +<% if @use_ceilometer == true %>enable_service ceilometer-acompute
   enable_service ceilometer-acentral
   enable_service ceilometer-collector
   enable_service ceilometer-alarm-singleton
  
positive.code: enable_service q-dhcp
  enable_service q-l3
  enable_service q-meta
  <% if more_network_services == true %>enable_service q-fwaas
  enable_service q-lbaas
  enable_service q-vpn
  enable_service neutron<% end %>
  
negative.code: KEYSTONE_CATALOG_BACKEND=sql
  API_RATE_LIMIT=False
  
  <% if @use_ldap == true %>LDAP_PASSWORD=<%= @devstack_password %>
  enable_service ldap<% end %>
  
  <% if @use_swift == true %>SWIFT_HASH=91342613-3ac6-4729-945b-87e87bcbb8c7
  SWIFT_REPLICAS=1
  enable_service s-proxy
  enable_service s-object
  