非抢占模式

非抢占模式中，节点1挂了之后节点2会接替1，当1恢复后还是2接替

节点规划

# 节点1：
192.168.31.21

# 节点2：
192.168.31.22

# virtual_ipaddress：
192.168.31.8

节点1配置（192.168.31.21:/etc/keepalived/keepalived.conf）

配置中以下两项发挥作用：

state BACKUP

nopreempt

global_defs {
   router_id LB_01
}

vrrp_instance VI_1 {
    state BACKUP
    nopreempt
    interface ens34
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.31.8
    }
}

节点2配置（192.168.31.22:/etc/keepalived/keepalived.conf）

global_defs {
   router_id LB_02
}

vrrp_instance VI_1 {
    state BACKUP
    nopreempt
    interface ens34
    virtual_router_id 51
    priority 50
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.31.8
    }
}