Keepalived实现lvs高可用

架构图

6.1）主keepalived配置文件

[root@keepalived01 ~]# cat /etc/keepalived/keepalived.conf
global_defs {
   router_id RD1
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
         192.168.139.100 dev lo label lo:1 # sheng
    }
}

virtual_server 192.168.139.100 80 { # DR 的VIP和端口转发声明
    delay_loop 3
    lb_algo rr
    lb_kind DR
    protocol TCP
    real_server 192.168.139.33 80 { # DR 转发的后端服务器和端口
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
    real_server 192.168.139.34 80 { # DR 转发的后端服务器和端口
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}

6.2）从keepalived配置文件

[root@keepalived02 ~]# cat /etc/keepalived/keepalived.conf
global_defs {
   router_id RD2
}

vrrp_instance VI_1 {
    state SLAVE
    interface eth0
    virtual_router_id 51
    priority 50
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
         192.168.139.100 dev lo label lo:1
    }
}

virtual_server 192.168.139.100 80 {
    delay_loop 3
    lb_algo rr
    lb_kind DR
    protocol TCP
    real_server 192.168.139.33 80 {
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
    real_server 192.168.139.34 80 {
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}