Check servers state via munin generated RRDs data

Setup

1. Add a new command in nagios

   check munin ### module / warn / crit

   define command { command_name check_munin command_line $USER1$/check_munin_rrd.pl -H $HOSTNAME$ -M $ARG1$ -w $ARG2$ -c $ARG3$ }

2. Define services

   check the disks

   define service { use generic-service hostgroup_name my_group service_description DISK_munin check_command check_munin!df!75!90 }

   check the load

   define service { use generic-service hostgroup_name my_group service_description LOAD_munin check_command check_munin!load!4!8 }

3. Fork it