anchor.diff:      apache_accesses.graph_category apache
       apache_accesses.accesses80.sum <%= Chef::Munin.expand "%%.openstreetmap:apache_accesses.accesses80", @frontends %>
       apache_accesses.accesses80.label port 80
  +    apache_accesses.accesses80.min 0
       apache_volume.graph_title Apache volume
       apache_volume.graph_vlabel bytes per ${graph_period}
       apache_volume.graph_category apache
       apache_volume.volume80.sum <%= Chef::Munin.expand "%%.openstreetmap:apache_volume.volume80", @frontends %>
       apache_volume.volume80.label port 80
  +    apache_volume.volume80.min 0
       if_eth0.graph_title eth0 traffic
       if_eth0.graph_vlabel bits in (-) / out (+) per ${graph_period}
       if_eth0.graph_category network
  
positive.code: <% @renderers.each do |rs| -%>
      apache_accesses.<%= rs[:name].tr("-", "_") %>.label <%= rs[:name] %>
      apache_accesses.<%= rs[:name].tr("-", "_") %>.draw AREASTACK
  <% end -%>
      apache_volume.graph_title Apache volume
      apache_volume.graph_vlabel bytes per ${graph_period}
  
negative.code: <% @renderers.each do |rs| -%>
      apache_volume.<%= rs[:name].tr("-", "_") %>.label <%= rs[:name] %>
      apache_volume.<%= rs[:name].tr("-", "_") %>.draw AREASTACK
      apache_volume.<%= rs[:name].tr("-", "_") %>.min 0
  <% end -%>
      network_in.graph_title Inbound network traffic
      network_in.graph_vlabel bits in per ${graph_period}
  