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contrib-munin/plugins/other/services

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2010-04-13 11:42:10 +02:00
#!/bin/sh
# -*- sh -*-
: << =cut
=head1 NAME
services - Plugin to monitor number of processes of different services
=head1 CONFIGURATION
This plugin uses the following configuration variables
[services]
env.datafile - Path to file which contains list of services (default: /root/munin/services.list)
Datafile should contain lines which are used to detect number of running processes (ps ax | grep "LINE FROM FILE").
If a number of processes of some service is below 1 (e.g. 0) critical event happens (configure your munin.conf about "contact.NAME.command" to send mail or something else;
also nice line is 'contact.NAME.always_send critical' - not to stop sending alerts after critical event appears the first time).
Datafile may contain comment lines (begin with "#"), empty lines and even regular expressions (WARNING - not tested, use carefully)
Example of datafile:
#############################
# This line is a comment and next lines are names of some services
sshd
smbd
nmbd
lighttpd
# Next line is an empty line
named
# Next line is a name of service with a path
/usr/local/sbin/upsd
# Next line is a line with spaces
BackupPC -d
#############################
This plugin does not draw any graphs. It is only written to send alerts via mail or something else.
=head1 AUTHOR
Copyright (C) 2010, Sergey Urushkin
=head1 LICENSE
GPLv3
=head1 MAGIC MARKERS
#%# family=contrib
#%# capabilities=autoconf
=cut
DATAFILE=${datafile:-/root/munin/services.list}
SERVICES=`[ -r "$DATAFILE" ] && grep -v '^[[:space:]]*\(#.*\|\)$' "$DATAFILE" | sed 's/[[:space:]]/___/g'`
[ -z "$SERVICES" ] && echo "Datafile is empty or not readable" 2>&1 && exit 1
if [ "$1" = "autoconf" ]
then
echo "yes"
exit 0
fi
if [ "$1" = "config" ]
then
echo "graph_title Running services"
echo "graph no"
for SERV in ${SERVICES}
do
SERVW=`echo "$SERV" | sed 's/___/ /g'`
echo "$SERV.label $SERVW"
echo "$SERV.critical 1:"
done
exit 0
fi
for SERV in ${SERVICES}
do
SERVW=`echo "$SERV" | sed 's/___/[[:space:]]*/g'`
VALUE=`ps ax | grep "$SERVW" | grep -v grep | wc -l | tr -d '[[:space:]]'`
echo "$SERV.value $VALUE"
done