高可用4层lvs——keepalived

搭建方式：

node01:

ipvsadm -C

ifconfig eth0:2 down

---------------------------------

node01,node04安装keepalived

配置：

node01

/etc/keepalived/keepalived.conf

做个bak备份，再修改

vrrp 虚拟路由冗余协议

vrrp_instance VI_1 {
    state MASTER    //node04 BACKUP
    interface eth0
    virtual_router_id 51      
    priority 100    //node04 50
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.118.100/24 dev eth0 label eth0:3
    }
}

real_server 192.168.118.12  {
        weight
        HTTP_GET {
            url {
              path /
              status_code
            }
            connect_timeout
            nb_get_retry
            delay_before_retry
        }
    }

    real_server 192.168.118.13  {
        weight
        HTTP_GET {
            url {
              path /
              status_code
            }
            connect_timeout
            nb_get_retry
            delay_before_retry
        }
    }