参考

nginx keepalived双网卡双网段热备配置

[keepalived双进程双VIP配置及原理图](keepalived双进程双VIP配置及原理图_花红羊蹄甲的博客-CSDN博客_keepalived 多进程)

简要实现

一般来说做两套配置即可，

master：

! Configuration File for keepalived

vrrp_script chk_haproxy {
    script "</dev/tcp/127.0.0.1/80"
    interval 2
    weight -2
}

vrrp_instance VI_A {
    state MASTER
    interface eno6
    track_interface {
        eno6
    }
    virtual_router_id 81
    priority 100
    mcast_src_ip 10.228.96.230
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        10.228.96.232 label webvip
    }
    track_script {
        chk_haproxy
    }
}

vrrp_instance VI_B {
    state MASTER
    interface eno5
    track_interface {
        eno5
    }
    virtual_router_id 82
    priority 100
    mcast_src_ip 198.120.100.101
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        198.120.100.104 label webvip
    }
    track_script {
        chk_haproxy
    }
}

slave：

! Configuration File for keepalived

vrrp_script chk_haproxy {
    script "</dev/tcp/127.0.0.1/80"
    interval 2
    weight -2
}

vrrp_instance VI_A {
    state BACKUP
    interface eno6
    track_interface {
        eno6
    }
    virtual_router_id 81
    priority 90
    mcast_src_ip 10.228.96.231
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        10.228.96.232 label webvip
    }
    track_script {
        chk_haproxy
    }
}

vrrp_instance VI_B {
    state BACKUP
    interface eno5
    track_interface {
        eno5
    }
    virtual_router_id 82
    priority 90
    mcast_src_ip 198.120.100.102
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        198.120.100.104 label webvip
    }
    track_script {
        chk_haproxy
    }
}