keepalived

#!/bin/bash

# Set the DEBUG to true if you want the
# script to output which IPS are offline
# Default: false
#%# family=auto
#%# capabilities=autoconf
DEBUG=0

if [ "$1" == "autoconf" ]; then
 if  [ -f /etc/keepalived/keepalived.conf ]; then
  echo yes
  exit 0
 else
  echo no
  exit 0
 fi
fi

# Start of script:

STATE=`cat /etc/keepalived/keepalived.conf  | grep -i state | awk '{print $2}'`

IPS=`cat /etc/keepalived/keepalived.conf | sed -n "/virtual_ipaddress/{:a;n;/}/b;p;ba}" | sed "s/address//g" | awk '{print $1}' | cut -d"/" -f1 | grep -v '^$'`
[ ${DEBUG} -gt 0 ] && echo -e "Following IP's need to be online:\t" $IPS

BINDED_IPS=`ip addr list |grep inet |cut -d' ' -f6|cut -d/ -f1`
[ ${DEBUG} -gt 0 ] && echo -e "Following IP's are now online:\t\t" $BINDED_IPS

# Usage: in_array "$needle" "${haystack[@]}"
in_array() {
    local hay needle=$1
    shift
    for hay; do
        [[ $hay == $needle ]] && return 0
    done
    return 1
}

AMOUNT_IPS=0
AMOUNT_ACTIVE_IPS=0
for name in ${IPS[@]}
do
	let AMOUNT_IPS=AMOUNT_IPS+1
	let AMOUNT_ACTIVE_IPS=AMOUNT_ACTIVE_IPS+1
	in_array $name $BINDED_IPS
	if [ "$?" -ne "0" ]; then
		let AMOUNT_ACTIVE_IPS=AMOUNT_ACTIVE_IPS-1
		[ ${DEBUG} -gt 0 ] && echo "Not online: "$name
	fi
done

case $1 in
    config)
        echo 'graph_order config active'
        echo 'graph_title Keepalived setting'
	echo 'graph_args --base 1000 -l 0'
        echo "graph_vlabel Active IP's ($STATE)"
        echo 'graph_category network'
        echo 'graph_info This graph shows the amount of active IP addresses on the server'
        echo 'config.label Configured IP addresses'
#        echo 'config.type COUNTER'
        echo 'active.label Active IP addresses'
#        echo 'active.type COUNTER'

	if [ "${STATE}" = "MASTER" ]; then
		CRITICAL=$AMOUNT_ACTIVE_IPS
		let CRITICAL=CRITICAL-1
		echo "active.critical " $CRITICAL":"
	fi

        exit 0
        ;;
esac

echo "active.value $AMOUNT_ACTIVE_IPS"
echo "config.value $AMOUNT_IPS"