Writing a Munin plugin is astoundingly simple. If you know where the data is and know a minimum of scripting in perl/shell/awk/sed or something like that you can do it. In way of explaining it all we'll write two plugins the simplest way. Since I'm kind of old school I'll use shell and shell tools for these plugins. You can do them completely in perl or any other language you like. Load average pl
{{#tags}}- {{label}}
{{/tags}}