#!/bin/sh
VIP="10.0.0.1"
DEV="eth0"
healthcheck(){
ping -c 1 -w 1 $VIP >/dev/null
return $?
}
ip_takeover(){
MAC=`ip link show $DEV|egrep -o '([0-9a-f]{2}:){5}[0-9a-f]{2}'|head -n 1|tr -d :`
ip addr add $VIP/24 dev $DEV
send_arp $VIP $MAC 255.255.255.255 ffffffffffff
}
while healthcheck;do
echo "health ok!"
sleep 1
done
echo "fail over"
ip_takeover
