ansible-roles/keepalived/files/check_keepalived_state

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#!/bin/bash
#
# echo $1 $2 is in $3 state > /var/run/keepalive.state
#
###############################################################
# Check Keepalived State #
# #
# Author: Zhivko Todorov <ztodorov@neterra.net> #
# Date: 01-Dec-2015 #
# Version: 0.0.1 #
# License: GPL #
###############################################################
# set to 'true' if the host is supposed to be in MASTER state
# or set to 'false' if the host is supposed to be in BACKUP state
# nrpe cannot receive external variables UNLESS is forced in config
MASTER='true'
# checking if there are alive keepalived processes so we can trust the content of the notify 'state' file
KEEPALIVENUM=`ps uax|grep '/usr/sbin/keepalived'|grep -v grep|wc -l|tr -d "\n"`
if [ $KEEPALIVENUM -gt 0 ]; then
KEEPALIVESTATE=`cat /var/run/keepalive.state`
if [ "$MASTER" == "true" ]; then
if [[ $KEEPALIVESTATE == *"MASTER"* ]];then
echo $KEEPALIVESTATE
exit 0
fi
if [[ $KEEPALIVESTATE == *"BACKUP"* ]];then
echo $KEEPALIVESTATE
exit 0
fi
else
if [[ $KEEPALIVESTATE == *"BACKUP"* ]];then
echo $KEEPALIVESTATE
exit 0
fi
if [[ $KEEPALIVESTATE == *"MASTER"* ]];then
echo $KEEPALIVESTATE
exit 2
fi
fi
fi
echo "Keepalived is in UNKNOWN state"
exit 3