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#!/bin/sh
#
# Event handler script for restarting the rsyslog server on the local machine
#
# Note: This script will only restart the web server if the service is
# retried 3 times (in a "soft" state) or if the web service somehow
# manages to fall into a "hard" error state.
#
servicestate=$1
servicestatetype=$2
serviceattempt=$3
remotehost=$4
hostalias=$5
servicedesc=$6
servicestate=$7
# What state is the HTTP service in?
case "$servicestate" in
OK)
# The service just came back up, so don't do anything...
;;
WARNING)
# We don't really care about warning states, since the service is probably still running...
;;
UNKNOWN)
# We don't know what might be causing an unknown error, so don't do anything...
;;
CRITICAL)
# Aha! The rsyslog service appears to have a problem - perhaps we should restart the server...
# Is this a "soft" or a "hard" state?
case "$servicestatetype" in
# We're in a "soft" state, meaning that Nagios is in the middle of retrying the
# check before it turns into a "hard" state and contacts get notified...
SOFT)
# What check attempt are we on? We don't want to restart the web server on the first
# check, because it may just be a fluke!
case "$serviceattempt" in
# Wait until the check has been tried 2 times before reloading the web server.
# If the check fails on the 4th time (after we restart the web server), the state
# type will turn to "hard" and contacts will be notified of the problem.
# Hopefully this will restart the web server successfully, so the 4th check will
# result in a "soft" recovery. If that happens no one gets notified because we
# fixed the problem!
2)
echo -n "Restarting rsyslog service (3rd soft critical state)..."
# Call the init script to restart the rsyslog server
echo "#fedora-noc $hostalias - Attempting to reload rsyslog. $servicedesc is $servicestate (2nd check)" | /usr/bin/nc -w 1 value01 5050
/usr/lib64/nagios/plugins/check_nrpe -H $remotehost -c service_rsyslog_reload
;;
esac
;;
# The HTTP service somehow managed to turn into a hard error without getting fixed.
# It should have been restarted by the code above, but for some reason it didn't.
# Let's give it one last try, shall we?
# Note: Contacts have already been notified of a problem with the service at this
# point (unless you disabled notifications for this service)
HARD)
echo -n "Restarting rsyslog service..."
echo "#fedora-noc $hostalias - Attempting to restart rsyslog. $servicedesc is $servicestate" | /usr/bin/nc -w 1 value01 5050
# Call the init script to restart the HTTPD server
/usr/lib64/nagios/plugins/check_nrpe -H $remotehost -c service_rsyslog_restart
;;
esac
;;
esac
exit 0
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