VRRPD配置包括三个类:
VRRP同步组(synchroization group) VRRP实例(VRRP Instance) VRRP脚本这里使用了 VRRP实例, VRRP脚本
注意配置选项:
stat:指定instance(Initial)的初始状态，就是说在配置好后，这台服务器的初始状态就是这里指定的，但这里指定的不算，还是得要通过竞选通过优先级来确定，里如果这里设置为master，但如若他的优先级不及另外一台，那么这台在发送通告时，会发送自己的优先级，另外一台发现优先级不如自己的高，那么他会就回抢占为master
interface：实例绑定的网卡，因为在配置虚拟IP的时候必须是在已有的网卡上添加的 priority 101：设置本节点的优先级，优先级高的为master debug：debug级别 nopreempt:设置为不抢占| vrrp_script chk_haproxy { script "killall -0 haproxy" # verify the pid existance interval 2 # check every 2 seconds 脚本执行间隔 weight -2 # add 2 points of prio if OK 脚本结果导致的优先级变更：2表示优先级+2；-2则表示优先级-2 } |
然后在实例(vrrp_instance)里面引用，有点类似脚本里面的函数引用一样：先定义，后引用函数名
| track_script { chk_haproxy } |
注意：VRRP脚本(vrrp_script)和VRRP实例(vrrp_instance)属于同一个级别
| root@10.1.6.203:scripts# cat start_haproxy.sh #!/bin/bash sleep 5 get=`ip addr |grep 10.1.6.173 |wc -l` echo $get >> /etc/keepalived/scripts/start_ha.log if [ $get -eq 1 ] then echo "`date +%c` success to get vip" >> /etc/keepalived/scripts/start_ha.log /usr/local/sbin/haproxy -f /etc/haproxy/haproxy.cfg else echo "`date +%c` can not get vip" >> /etc/keepalived/scripts/start_ha.log fi root@10.1.6.203:scripts# cat stop_keepalived.sh #!/bin/bash pid=`pidof keepalived` if [ $pid == "" ] then echo "`date +%c` no keepalived process id" >> /etc/keepalived/scripts/stop_keep.log else echo "`date +%c` will stop keepalived " >> /etc/keepalived/scripts/stop_keep.log /etc/init.d/keepalived stop fi /etc/init.d/keepalived stop root@10.1.6.203:scripts# cat stop_haproxy.sh #!/bin/bash pid=`pidof haproxy` echo "`date +%c` stop haproxy" >> /etc/keepalived/scripts/stop_ha.log kill -9 $pid |
同理配置10.1.6.205
