keepalived主从配置

主: 192.168.39.83

vim keepalived.conf

! Configuration File for keepalived


global_defs {

   router_id nginx_master

}


vrrp_script chk_nginx {

    script "/data/scripts/nginx_check.sh"

    interval 2

}


vrrp_instance VI_1 {

    state MASTER

    interface em1

    virtual_router_id 51

    priority 101

    advert_int 1


    track_script {

        chk_nginx

    }


    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {        

        192.168.39.20/24

        192.168.39.21/24

    }

}


vrrp_instance VI_2 {

    state BACKUP

    interface em1

    virtual_router_id 52

    priority 99

    advert_int 1


    track_script {

        chk_nginx

    }


    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {

        192.168.39.10/24

        192.168.39.11/24

    }

}



从:192.168.39.84

vim keepalived.conf

! Configuration File for keepalived


global_defs {

   router_id nginx_backup

}


vrrp_script chk_nginx {

    script "/data/scripts/nginx_check.sh"

    interval 2

}


vrrp_instance VI_1 {

    state BACKUP

    interface em1

    virtual_router_id 51

    priority 99

    advert_int 1


    track_script {

        chk_nginx

    }


    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {

       192.168.39.20/24

       192.168.39.21/24

    }

}


vrrp_instance VI_2 {

    state MASTER

    interface em1

    virtual_router_id 52

    priority 101

    advert_int 1


    track_script {

        chk_nginx

    }


    authentication {

        auth_type PASS

        auth_pass 1111

    }

    virtual_ipaddress {

       192.168.39.10/24

       192.168.39.11/24

    }


}


注: iptables需要开启vrrp协议访问

iptables -I INPUT -p vrrp -j ACCEPT

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