anchor.diff:  
   IMAGE_URLS="http://mirror.cabtec.net/images/cirros-0.3.2-x86_64-uec.tar.gz"
   
  -<% if more_images == true %>IMAGE_URLS+=",http://mirror.cabtec.net/images/trusty-server-cloudimg-amd64.tar.gz"
  +<% if @more_images == true %>IMAGE_URLS+=",http://mirror.cabtec.net/images/trusty-server-cloudimg-amd64.tar.gz"
   IMAGE_URLS+=",http://mirror.cabtec.net/images/utopic-server-cloudimg-amd64.tar.gz"<% end %>
   
   LOGFILE=$HOME/stack.log
   SCREEN_LOGDIR=/opt/stack/logs
   
  -<% if venv == true %>INSTALL_TESTONLY_PACKAGES=True<% end %>
  -<% if venv == false %>INSTALL_TESTONLY_PACKAGES=False<% end %>
  +<% if @venv == true %>INSTALL_TESTONLY_PACKAGES=True<% end %>
  +<% if @venv == false %>INSTALL_TESTONLY_PACKAGES=False<% end %>
  
positive.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
  
negative.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 %>
  