Munin contributed plugins

#!/bin/bash

# -*- sh -*-

: << =cut

=head1 NAME

lxc_cpu - Plugin to monitor LXC CPU usage

=head1 CONFIGURATION

  [lxc_*]

    user root

=head1 INTERPRETATION

This plugin needs root privilege.

=head1 AUTHOR

vajtsz  vajtsz@gmail.com

mitty   mitty@mitty.jp

=head1 LICENSE

Unknown license

=head1 MAGIC MARKERS

 #%# family=auto

 #%# capabilities=autoconf

=cut

. $MUNIN_LIBDIR/plugins/plugin.sh

guest_names=`lxc-ls | sort -u`

for guest in $guest_names; do

 if lxc-info -n $guest 2>&1 | grep -qs RUNNING ; then

  active="$active $guest"

 fi

done

guest_names="$active"

f_comm='lxc-cgroup  '

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

	if [ -r /proc/stat ]; then

		echo yes

		exit 0

	else

		echo "no (no /proc/stat)"

		exit 0

	fi

fi

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

 echo 'graph_title CPU Usage '

 echo 'graph_args -l 0 --base 1000'

 echo 'graph_vlabel USER_HZ'

 echo 'graph_category lxc'

 for guest_name in $guest_names;

 do 

  guest="$(clean_fieldname $guest_name)"

  echo 'cpu_user_'$guest'.label '$guest_name': User'

  echo 'cpu_user_'$guest'.type DERIVE'

  echo 'cpu_user_'$guest'.min 0'

  echo 'cpu_system_'$guest'.label '$guest_name': System'

  echo 'cpu_system_'$guest'.type DERIVE'

  echo 'cpu_system_'$guest'.min 0'

 done

 exit 0

fi

 for guest_name in $guest_names;

 do 

  guest="$(clean_fieldname $guest_name)"

  tmp_g=`$f_comm -n $guest_name cpuacct.stat | grep user`

  tmp_v=`echo $tmp_g | awk '{print($2)}'`

  echo 'cpu_user_'$guest'.value '$tmp_v

  tmp_g=`$f_comm -n $guest_name cpuacct.stat | grep system`

  tmp_v=`echo $tmp_g | awk '{print($2)}'`

  echo 'cpu_system_'$guest'.value '$tmp_v

 done