#!/bin/bash
# -*- sh -*-
: << =cut
=head1 NAME
ipmi_ - Plugin to monitor temperature or fan speed using IPMI
=head1 CONFIGURATION
=head2 ENVIRONMENT VARIABLES
This plugin does not use environment variables
=head2 WILDCARD PLUGIN
This plugin should be linked as ipmi_temp or ipmi_fans, and will show
either temperatures or fan speeds based on its link name.
=head1 NOTE
WARNING: Munin has a 10 second default timeout on plugins. On some
hosts ipmitool takes longer than that to probe all your hardware. In
this case this plugin us unusable.
=head1 AUTHOR
Nicolai Langfeldt <janl@linpro.no>
=head1 LICENSE
Donated to the public domain by Nicolai Langfeldt (janl@linpro.no)
=head1 MAGIC MARKERS
#%# family=auto
#%# capabilities=autoconf suggest
=cut
#### Parse commandline to determine what the job is
CONFIG=no
case $1 in
autoconf)
type -p ipmitool &>/dev/null ||
{ echo 'no (missing ipmitool command)' && exit 0; }
ipmitool sensor &>/dev/null ||
{ echo 'no (unable to access IPMI device)' && exit 0; }
echo yes
exit 0
;;
suggest) echo fans
echo temp
echo power
exit 0;;
config) CONFIG=config;;
esac
case $0 in
*_temp) MEASURE=temp;;
*_fans) MEASURE=fans;;
*_power) MEASURE=power;;
*) echo "Please invoke as ipmi_temp, ipmi_fans or ipmi_power" >&2
exit 1;;
esac
export CONFIG MEASURE
#### Work is done in this awk script
ipmitool sensor | gawk -F'|' '
BEGIN {
FANS = "";
TEMPS = "";
POWER = "";
CFANS = "graph_title Fan speeds based on IPMI\ngraph_vlabel RPM or %\ngraph_category Sensors\n";
CTEMPS = "graph_title Machine temperature based on IPMI\ngraph_vlabel Degrees celcius\ngraph_category Sensors\n";
CPOWER = "graph_title Power usage based on IPMI\ngraph_vlabel W\ngraph_category Sensors\n";
}
# Remove extraneous spaces to make output prettyer
{ gsub(/\t/," "); gsub(/ +/," "); gsub(/ +\|/,"|"); gsub(/\| +/,"|") }
# Skip lines with 0x0 in first column
/^[^|]+\|0x0\|/ { next; };
# Skip lines with na in first column
/^[^|]+\|na\|/ { next; };
# Parse temperatures
/degrees C/ {
NAME=THING=$1;
gsub(/[^A-Za-z0-9]/,"",NAME);
TEMP=$2;
# Find unique name
while (NAMES[NAME] >= 1) {
NAME=sprintf("%si",NAME);
}
NAMES[NAME]=1;
WARN=$8;
CRIT=$9;
TEMPS = sprintf("%s%s.value %s\n",TEMPS,NAME,TEMP);
CTEMPS = sprintf("%s%s.label %s\n",CTEMPS,NAME,THING);
if (CRIT !~ /na/) {
CTEMPS = sprintf("%s%s.critical 0:%s\n",CTEMPS,NAME,CRIT);
}
if (WARN !~ /na/) {
CTEMPS = sprintf("%s%s.warning 0:%s\n",CTEMPS,NAME,WARN);
}
}
/(RPM|^Fan.*percent)/ {
NAME=THING=$1;
gsub(/[^A-Za-z0-9]/,"",NAME);
SPEED=$2;
# Find unique name
while (NAMES[NAME] >= 1) {
NAME=sprintf("%si",NAME);
}
NAMES[NAME]=1;
FANS = sprintf("%s%s.value %s\n",FANS,NAME,SPEED);
CFANS = sprintf("%s%s.label %s\n",CFANS,NAME,THING);
OK=$4;
MIN=$6;
if (MIN !~ /na/) {
CFANS = sprintf("%s%s.warning %s:\n",CFANS,NAME,MIN);
}
}
/Watts/ {
NAME=THING=$1;
gsub(/[^A-Za-z0-9]/,"",NAME);
WATTS=$2;
# Find unique name
while (NAMES[NAME] >= 1) {
NAME=sprintf("%si",NAME);
}
NAMES[NAME]=1;
POWER = sprintf("%s%s.value %s\n",POWER,NAME,WATTS);
CPOWER = sprintf("%s%s.label %s\n",CPOWER,NAME,THING);
}
END {
if (ENVIRON["MEASURE"] == "temp") {
VALUE=TEMPS;
CONFIG=CTEMPS;
} else if (ENVIRON["MEASURE"] == "power") {
VALUE=POWER;
CONFIG=CPOWER;
} else {
VALUE=FANS;
CONFIG=CFANS;
}
if (ENVIRON["CONFIG"] == "config")
printf "%s",CONFIG;
else
printf "%s",VALUE;
}
'
# vim: syntax=sh ts=4 et
Mini Shell