fb_nginx_ha

#! /bin/sh
# local ip : 192.168.1.237
[ -e nginx_ha.pid ] && kill -9 $(cat nginx_ha.pid)
echo $$ > nginx_ha.pid
bind_vip1() {
        ifconfig $ifc $ha_vip1 netmask 255.255.255.0 alias
        echo 'xx'
}
remove_vip2() {
        ifconfig $ifc $ha_vip2 netmask 255.255.255.0 -alias
        echo 'bb'
}
ha_vip1="192.168.1.239"
ha_vip2="192.168.1.237"
ifc="rl0"
ifconfig $ifc  $ha_vip2 netmask 255.255.255.0 alias
ifconfig $ifc  $ha_vip1 netmask 255.255.255.0 -alias

do_vip1="N"
do_vip2="N"
while true
do
        http_code_vip1=$(/usr/local/bin/curl -o /dev/null -s -w "%{http_code}" http://$ha_vip1)
        http_code_vip2=$(/usr/local/bin/curl -o /dev/null -s -w "%{http_code}" http://$ha_vip2)
        if [ $do_vip2 = "N" ] && [ $http_code_vip2 -ne 200 ]; then
                remove_vip2
                do_vip2="Y"
        fi
        if [ $do_vip1 = "N" ] && [ $http_code_vip1 -ne 200 ]; then
                bind_vip1
                do_vip1="Y"
        fi
        sleep 5
done