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Munin-Contrib/plugins/lxc/lxc_cpu

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#!/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
(many changes schaefer@alphanet.ch)
=head1 LICENSE
2-clause BSD License
or GPLv3 license, at your option
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf
=cut
. $MUNIN_LIBDIR/plugins/plugin.sh
. $MUNIN_LIBDIR/plugins/lxc-lib
active_guests=$(active_guests)
if [ "$1" = "autoconf" ]; then
lxc_autoconf
fi
if [ "$1" = "config" ]; then
cat <<EOF
graph_title CPU Usage
graph_args -l 0 --base 1000
graph_vlabel USER_HZ
graph_category lxc
EOF
for n in $active_guests
do
g=$(lxc_clean_fieldname $n)
for i in user system
do
cat <<EOF
cpu_${i}_${g}.label $n: $(echo ${i:0:1} | tr "[:lower:]" "[:upper:]")${i:1}
cpu_${i}_${g}.type DERIVE
cpu_${i}_${g}.min 0
EOF
done
done
exit 0
fi
for n in $active_guests
do
g=$(lxc_clean_fieldname $n)
for i in user system
do
echo "cpu_${i}_${g}.value $(lxc_cgroup -n $n cpuacct.stat | grep $i | awk '{ print $2; }')"
done
done