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 80 {
        weight 1
        HTTP_GET {
            url {
              path / 
              status_code 200
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

    real_server 192.168.118.13 80 {
        weight 1
        HTTP_GET {
            url {
              path /
              status_code 200
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }