Monitoring openvz resources using munin

munin plugin

The plugin listed below grabs all the bean counters' values.

{{#!/bin/sh

2. plugin to monitor OpenVZ bean counters.
5. %# family=auto
6. %# capabilities=autoconf suggest

ATTR=`basename $0 | sed 's/^vebc_//g'`

if [ "$1" = "autoconf" ]; then

       if [ -r /proc/bc/0/resources ]; then
               echo yes
               exit 0
       else
               echo "no (/proc/bc/0/resources not found)"
               exit 1
       fi

fi

if [ "$1" = "suggest" ]; then

       if [ -r /proc/bc/0/resources ]; then
           cat /proc/bc/0/resources |
           while read str; do

               vals=($str)
               echo ${vals[0]}
           done

               exit 0
       else
               exit 1
       fi

fi

if [ "$1" = "config" ]; then

1. echo "graph_order down up"

       echo "graph_title $ATTR beancounter for VE's"
       echo 'graph_category system'
       echo "graph_info 'VE bean counters info'"

       for VEID in `ls -d1 /proc/bc/???`; do
           id=`basename $VEID`
           grep $ATTR $VEID/resources |
           while read str; do

               vals=($str)
               name=${vals[0]}
               echo ${id}.label $id
               echo "${id}.warning  ${vals[3]}"
               echo "${id}.critical  ${vals[4]}"
           done
       done

       exit 0

fi;

       for VEID in `ls -d1 /proc/bc/???`; do
           id=`basename $VEID`
           grep $ATTR $VEID/resources |
           while read str; do

               vals=($str)
               name=${vals[0]}
               echo "$id.value ${vals[1]}"
           done
       done

}}

Please note, you have to configure plugin to run as root:

[vebc*] user root

at /etc/munin/plugin-conf.d/ somewhere.