anchor.diff:  }
   
   director app_director round-robin {
  -  <% @node[:varnish][:app_proxy_host].each_with_index do |host, i| %>
  -    { .backend = app_server_<%= i+1 %>; }
  +  <% @node[:varnish][:app_proxy_servers].each do |server| %>
  +    { .backend = <%= server[:alias] %>; }
     <% end %>
   }
   
   director my_fr2_director round-robin {
  -  <% @node[:varnish][:my_fr2_proxy_host].each_with_index do |host, i| %>
  -    { .backend = my_fr2_server_<%= i+1 %>; }
  +  <% @node[:varnish][:my_fr2_proxy_servers].each do |server| %>
  +    { .backend = <%= server[:alias] %>; }
     <% end %>
   }
   <% end %>
  
positive.code:   #include <time.h>
  }C
  
  <% @node[:varnish][:app_proxy_host].each_with_index do |host, i| %>
  backend app_server_<%= i+1 %> {
    .host = "<%= host %>";
    .port = "<%= @node[:varnish][:app_proxy_port] %>";
    <% unless @node[:chef][:roles].include?('vagrant') %>
    .probe = {
  
negative.code:     }else if( req.url ~ "^/blog/wp-(login|admin)" ){
          set req.backend = blog_server;
          return (pass);
          } else if (req.url ~ "^(/blog|/policy|/learn|/layout/footer_page_list|/layout/homepage_post_list|/layout/navigation_page_list)") {
          set req.backend = blog_server;
  
          # Don't cache wordpress pages if logged in to wp
          if (req.http.Cookie ~ "wordpress_logged_in_" || req.http.Cookie ~ "comment_author_") {
              return (pass);
  