anchor.diff:      listen      <%= define_port %>;
       server_name <%= server_name %><% server_aliases.each do |val| -%> <%= val %><% end -%>;
   
  -    access_log          /var/log/nginx/<%= define_servername %>.access.log;
  -    error_log           /var/log/nginx/<%= define_servername %>.error.log;
  +    access_log          /var/log/nginx/<%= server_name %>.access.log;
  +    error_log           /var/log/nginx/<%= server_name %>.error.log;
   
       root                <%= root_dir %>;
   
  
positive.code:         proxy_redirect off;       
  
          if (!-f $request_filename) {
              proxy_pass http://<%= define_servername %>;
              break;
          }
      }
  
negative.code: #
  # module nginx
  
  upstream <%= server_name %> {
      server      <%= upstream %> fail_timeout=0;
  }
  
  