nagios chkconfig check for red hat based os'es: checks which daemons should be running according to chkconfig, then checks status for each daemon

check_chkconfig_status

#!/bin/bash

# check_chkconfig_status
#
# Checks which services should be running according 
# to chkconfig and check if they actually are.
#
# 2013-08-06: Piotr Popieluch
# 
# for this to run from nrpe add the following line to /etc/sudoers:
# nrpe ALL=(ALL) NOPASSWD: /sbin/service * status
# and comment 
# Defaults    requiretty

RUNLEVEL=$(/sbin/runlevel | awk '{print $2}')
RUNNING=''
STOPPED_COUNT=0
STOPPED_NAME=''
IGNORE='lvm2-monitor'

for SERVICE in `/sbin/chkconfig --list | grep -v ${IGNORE} | grep "${RUNLEVEL}:on" | awk '{print $1}'`; do  
	/usr/bin/sudo /sbin/service ${SERVICE} status >/dev/null
	if [ $? -ne 0 ]; then
		STOPPED_COUNT=$(( ${STOPPED_COUNT} + 1 ))
		STOPPED_NAME="${STOPPED_NAME} ${SERVICE}"
	fi

done

# service stopped
if [ ${STOPPED_COUNT} -gt 0 ]; then
	echo "SERVICES CRITICAL -${STOPPED_NAME} not running | failed_service=${STOPPED_COUNT}"
	exit 2
fi

# all services are running
if [ ${STOPPED_COUNT} -eq 0 ]; then
	echo "SERVICES OK - all services running | failed_service=${STOPPED_COUNT}"
	exit 0
fi

# unknown error
echo "SERVICES UNKONWN - unknown error"
exit 3