使用Zabbix Api功能，跨互联网 监控Zabbix-Proxy状态

       项目需要通过zabbix-proxy 来获取监控数据【网络是单向的，zabbix-proxy 通过公网主动连接 zabbix-server ，上报监控数据，已达到监控的目的】

需求：

       因为是单向网络，proxy 挂了后，zabbix master 都无法获取到 zabbix-proxy 和 下面的agent 机器的离线的状态，更不会触发告警；现需要对 zabbix-proxy 的状态实行监控，利用 zabbix-proxy 主动上传到 zabbix 页面上的 agent 代理程序的 状态 来判断 zabbix-proxy 的存活

思路：

         通过获取 zabbix api 中 Proxy 代理 的 信息 来实现 监控

官方api说明：

版本：zabbix4.0

获取token：https://www.zabbix.com/documentation/4.0/zh/manual/api/reference/user/login

获取proxy 代理信息： https://www.zabbix.com/documentation/4.0/zh/manual/api/reference/proxy/get

#获取token：

#入参：
curl -s -X POST -H 'Content-Type: application/json' -d '
{
    "jsonrpc": "2.0",
    "method": "user.login",
    "params": {
        "user": "Admin",
        "password": "PASSWORD"
    },
    "id": 1
}' http://172.16.10.37:8888/api_jsonrpc.php;

#回参：
{"jsonrpc":"2.0","result":"为0qwewerwrsdfdsfdsafsd","id":1}

#得到token 为0qwewerwrsdfdsfdsafsd

#获取proxy 代理信息

#利用上面获取的token，来获取api 中proxy 的代理信息

#入参：
curl -s -X POST -H 'Content-Type: application/json' -d '
{
    "jsonrpc": "2.0",
    "method": "proxy.get",
    "params": {
        "output": "extend",
        "selectInterface": "extend"
    },
    "auth": "0qwewerwrsdfdsfdsafsd",
    "id": 1
}' http://172.16.10.37:8888/api_jsonrpc.php


#回参
{
	"jsonrpc": "2.0",
	"result": [
		{
			"proxy_hostid": "0",
			"host": "a-proxy",
			"status": "5",
			"disable_until": "0",
			"error": "",
			"available": "0",
			"errors_from": "0",
			"lastaccess": "1637806905",
			"ipmi_authtype": "-1",
			"ipmi_privilege": "2",
			"ipmi_username": "",
			"ipmi_password": "",
			"ipmi_disable_until": "0",
			"ipmi_available": "0",
			"snmp_disable_until": "0",
			"snmp_available": "0",
			"maintenanceid": "0",
			"maintenance_status": "0",
			"maintenance_type": "0",
			"maintenance_from": "0",
			"ipmi_errors_from": "0",
			"snmp_errors_from": "0",
			"ipmi_error": "",
			"snmp_error": "",
			"jmx_disable_until": "0",
			"jmx_available": "0",
			"jmx_errors_from": "0",
			"jmx_error": "",
			"name": "",
			"flags": "0",
			"templateid": "0",
			"description": "a-proxy",
			"tls_connect": "1",
			"tls_accept": "1",
			"tls_issuer": "",
			"tls_subject": "",
			"tls_psk_identity": "",
			"tls_psk": "",
			"proxy_address": "1.1.1.1",
			"auto_compress": "1",
			"discover": "0",
			"proxyid": "10385",
			"interface": []
		},
		{
			"proxy_hostid": "0",
			"host": "b-proxy",
			"status": "5",
			"disable_until": "0",
			"error": "",
			"available": "0",
			"errors_from": "0",
			"lastaccess": "1637806906",
			"ipmi_authtype": "-1",
			"ipmi_privilege": "2",
			"ipmi_username": "",
			"ipmi_password": "",
			"ipmi_disable_until": "0",
			"ipmi_available": "0",
			"snmp_disable_until": "0",
			"snmp_available": "0",
			"maintenanceid": "0",
			"maintenance_status": "0",
			"maintenance_type": "0",
			"maintenance_from": "0",
			"ipmi_errors_from": "0",
			"snmp_errors_from": "0",
			"ipmi_error": "",
			"snmp_error": "",
			"jmx_disable_until": "0",
			"jmx_available": "0",
			"jmx_errors_from": "0",
			"jmx_error": "",
			"name": "",
			"flags": "0",
			"templateid": "0",
			"description": "b-proxy",
			"tls_connect": "1",
			"tls_accept": "1",
			"tls_issuer": "",
			"tls_subject": "",
			"tls_psk_identity": "",
			"tls_psk": "",
			"proxy_address": "1.1.1.1",
			"auto_compress": "1",
			"discover": "0",
			"proxyid": "10402",
			"interface": []
		},
		{
			"proxy_hostid": "0",
			"host": "c_proxy",
			"status": "5",
			"disable_until": "0",
			"error": "",
			"available": "0",
			"errors_from": "0",
			"lastaccess": "1637806905",
			"ipmi_authtype": "-1",
			"ipmi_privilege": "2",
			"ipmi_username": "",
			"ipmi_password": "",
			"ipmi_disable_until": "0",
			"ipmi_available": "0",
			"snmp_disable_until": "0",
			"snmp_available": "0",
			"maintenanceid": "0",
			"maintenance_status": "0",
			"maintenance_type": "0",
			"maintenance_from": "0",
			"ipmi_errors_from": "0",
			"snmp_errors_from": "0",
			"ipmi_error": "",
			"snmp_error": "",
			"jmx_disable_until": "0",
			"jmx_available": "0",
			"jmx_errors_from": "0",
			"jmx_error": "",
			"name": "",
			"flags": "0",
			"templateid": "0",
			"description": "c_proxy",
			"tls_connect": "1",
			"tls_accept": "1",
			"tls_issuer": "",
			"tls_subject": "",
			"tls_psk_identity": "",
			"tls_psk": "",
			"proxy_address": "1.1.1.1",
			"auto_compress": "1",
			"discover": "0",
			"proxyid": "10445",
			"interface": []
		}
	],
	"id": 1
}

再次过滤，找到lastaccess字段，该字段的值表示 proxy 当前的 时间戳，每5秒 内会发生变化；通过对比该字段的值 和 zabbix-server 当前时间戳的 时间差，来判断 proxy 的状态是否正常

添加监控项：

获取 lastaccess字段 的值

创建监控脚本：

[root@sre ~]# cd /etc/zabbix/zabbix_agentd.d

[root@sre zabbix_agentd.d]#  vim a-proxy-check.sh
#!/bin/bash
curl -s -X POST -H 'Content-Type: application/json' -d '
{
    "jsonrpc": "2.0",
    "method": "proxy.get",
    "params": {
        "output": "extend",
        "selectInterface": "extend"
    },
    "auth": "0qwewerwrsdfdsfdsafsd",
    "id": 1
}' http://172.16.10.37:8888/api_jsonrpc.php | awk -F '{"' '{print $3}' | awk -F ',' '{print $8}' | awk -F '"' '{print $4}'


[root@sre zabbix_agentd.d]# chmod +x /etc/zabbix/zabbix_agentd.d/a-proxy-check.sh

修改 zabbix_agentd.conf 配置文件，创建KEY ，指定脚本路径

[root@sre ~]# vim /etc/zabbix/zabbix_agentd.conf 
........
UnsafeUserParameters=1
#自定义一个key,监控a_proxy的状态
UserParameter=a_proxy_status,/bin/bash /etc/zabbix/zabbix_agentd.d/a-proxy-check.sh
........

重启 zabbix-agent

 systemctl restart zabbix-agent

登录到zabbix-server 使用zabbix-get 测试监控项

[root@sre zabbix]# zabbix_get -s 172.16.10.37 -p 10050 -k "a_proxy_status"
1637923240

登录到zabbix web 控制台，

#添加监控项

#添加触发器

触发器表达式表示： 当a-proxy 时间戳的 值 和 zabbix 当前时间戳的值 ，相差60 秒 ，触发告警

修改触发器值，模拟触发告警

总结： 本篇文能写出来也是被逼无奈，单向网络，跨互联网监控，也是生产上一个案例吧，作者能力有限，欢迎大家~多多评论~交流