centos7部署keepalived

yum install keepalived -y

修改/etc/keepalived.conf配置文件，达到高可用状态

vim /etc/keepalived/keepalived.conf

! Configuration File for keepalived

global_defs {

   router_id MASTER     #主写MASTER，备写BACKUP

}

vrrp_instance VI_1 {

    state MASTER    #主写MASTER，备写BACKUP

    interface eth0    #本机的有效网卡

    virtual_router_id 51　 #高可用集群组里的id

    priority 100    #优先级权值，主的值比备的要高

    advert_int 1

    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {

        192.168.108.200    #虚拟VIP

    }

}

systemctl start keepalived
systemctl enable keepalived