anchor.diff:      apache_volume.graph_category apache
       apache_volume.graph_order <%= Chef::Munin.expand "%%%name%%%=%%name%%.openstreetmap:apache_volume.volume80", @renderers %>
       apache_volume.graph_total total
  +    apache_volume.graph_args --lower-limit 0
   <% @renderers.each do |rs| -%>
       apache_volume.<%= rs[:name].tr("-", "_") %>.label <%= rs[:name] %>
       apache_volume.<%= rs[:name].tr("-", "_") %>.draw AREASTACK
  
positive.code:     apache_accesses.graph_category apache
      apache_accesses.graph_order <%= Chef::Munin.expand "%%%name%%%=%%name%%.openstreetmap:apache_accesses.accesses80", @renderers %>
      apache_accesses.graph_total total
  <% @renderers.each do |rs| -%>
      apache_accesses.<%= rs[:name].tr("-", "_") %>.label <%= rs[:name] %>
      apache_accesses.<%= rs[:name].tr("-", "_") %>.draw AREASTACK
  
negative.code:     apache_accesses.graph_title Apache accesses
      apache_accesses.graph_vlabel accesses / ${graph_period}
      apache_accesses.graph_category apache
      apache_accesses.graph_args --lower-limit 0
      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.graph_args --lower-limit 0
      apache_volume.volume80.sum <%= Chef::Munin.expand "%%.openstreetmap:apache_volume.volume80", @frontends %>
      apache_volume.volume80.label port 80
      apache_volume.volume80.min 0
  