LVS+keepalived+HTTPD 集群

jin5011

　　VIP:192.168.59.110
　　realIP-1:192.168.59.230
　　realIP-2:192.168.59.231
　　安装:略
　　配置keepalived
　　vi /etc/keepalived/keepalived.conf

! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
##   notification_email_from Alexandre.Cassen@firewall.loc
##   smtp_server 192.168.200.1
##   smtp_connect_timeout 30
router_id LVS_DEVEL
}
vrrp_instance VI_MYSQL {
state MASTER   ## 主备库都是BACKUP，防止主库重启后，抢夺VIP资源
interface eth0  ## HA地址网卡
virtual_router_id 55
priority 100  ## 优先级，主库比备库高
nopreempt ## 非抢夺，在主库上配置，表示不抢夺VIP
advert_int 1  ## 主备心跳检查间隔
authentication {
auth_type PASS
auth_pass 123456
}
virtual_ipaddress {  ## VIP，主备库一样
192.168.59.110
}
}
virtual_server 192.168.59.110 80{
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 60
protocol TCP
real_server 192.168.59.230 80 {
weight 1
TCP_CHECK {
connect_timeout 3
connect_port 80
}
}
real_server 192.168.59.231 80 {
weight 2
TCP_CHECK {
connect_timeout 3
connect_port 80
}
}
}

　　重从启keepalived
　　service keepalived restart
　　查看keepalived日志
　　tail -f /var/log/message
　　在real server建立一个LVS脚本lvs.sh

#!/bin/bash
# description: Config realserver lo and apply noarp
#Written by :NetSeek http://www.linuxtone.org
SNS_VIP=192.168.59.110
/etc/rc.d/init.d/functions
case "$1" in
start)
ifconfig lo:0 $SNS_VIP netmask 255.255.255.255 broadcast $SNS_VIP
/sbin/route add -host $SNS_VIP dev lo:0
echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
sysctl -p >/dev/null 2>&1
echo "RealServer Start OK"
;;
stop)
ifconfig lo:0 down
route del $SNS_VIP >/dev/null 2>&1
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
echo "RealServer Stoped"
;;
*)
echo "Usage: $0 {start|stop}"
exit 1
esac

　　chmod 777 lvs.sh
　　./lvs.sh start
　　回到LVS SERVER上看看keepalived的日志,应该能看到类似下面的信息:
　　TCP connection to [192.168.59.230]:80 success.
　　现在你可以做访问测试了!