zabbix服务端测试脚本

[root@zabbix ~]# zabbix_get -s 192.168.111.142 -k check_keepalived
0

监控备服务器

测试

让主备产生脑裂

[root@backup ~]# vim /etc/keepalived/keepalived.conf
! Configuration File for keepalived

global_defs {
   router_id lb01
}

vrrp_instance VI_1 {
    state MASTER
    interface ens33
    virtual_router_id 50		//正常情况下此处id主备一致 改为不一致就可以产生脑裂
    priority 90
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 123456
    }
    virtual_ipaddress {
        192.168.111.250
    }
    notify_master "/scripts/notify.sh master 192.168.111.250"
    notify_backup "/scripts/notify.sh backup 192.168.111.250"
}

virtual_server 192.168.111.250 80 {
    delay_loop 6
    lb_algo rr
    lb_kind DR
    persistence_timeout 50
    protocol TCP

    real_server 192.168.111.141 80 {
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

    real_server 192.168.111.142 80 {
        weight 1
        TCP_CHECK {
            connect_port 80
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }
}

//重启服务
[root@backup ~]# systemctl restart keepalived

查看VIP
主

[root@master ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:50:34:72 brd ff:ff:ff:ff:ff:ff
    inet 192.168.111.141/24 brd 192.168.111.255 scope global dynamic noprefixroute ens33
       valid_lft 1510sec preferred_lft 1510sec
    inet 192.168.111.250/32 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe50:3472/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

备

[root@backup ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:07:42:65 brd ff:ff:ff:ff:ff:ff
    inet 192.168.111.142/24 brd 192.168.111.255 scope global dynamic noprefixroute ens33
       valid_lft 1640sec preferred_lft 1640sec
    inet 192.168.111.250/32 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe07:4265/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever