1、设置钉钉机器人报警
详见阿里云官方文档 https://help.aliyun.com/document_detail/106247.html?spm=5176.2020520101.0.0.57824df5GNP6Jn
重点：获取生成的webhook机器人地址
https://oapi.dingtalk.com/robot/send?access_token=8b21a85c6d22d25dca5bbee5a207bc31e93022d4f68ac1d8b45ddbc9xxxxxxxx
2、创建钉订告警发送 python脚本 nagios-dingding-no@.py
#!/usr/含蓄的康乃馨/python# -*- coding: utf-8 -*-import requestsimport jsonimport sysimport os headers = {'Content-Type': 'application/json;charset=utf-8'}api_url = "https://oapi.dingtalk.com/robot/send?access_token=8b21a85c6d22d25dca5bbee5a207bc31e93022d4f68ac1d8b45ddbc9xxxxxxxx" def msg(text): json_text= { "msgtype": "text",# "at": {# "atMobiles": [# "13812345678"# ],# "isAtAll": False# }, "text": { "content": text } } print requests.post(api_url,json.dumps(json_text),headers=headers).content if __name__ == '__main__': text = sys.argv[1] msg(text)####注释部分 at 为@指定手机号码的人，不想@任何人可以取消at代码段
测试脚本
# python nagios-dingding-no@.py 'nagios监控测试 2020.04.01'
返回 {"errcode":0,"errmsg":"ok"}，说明发送成功
钉钉群会收到消息：
将nagios-dingding-no@.py脚本放至 /usr/local/nagios/libexec/目录
至此，告警发送脚本就设置完成了，接下来就来配置nagios，通过调用告警脚本实现nagios的告警信息实时地通过钉订发送出来。
二、nagios相关设置
在/usr/local/nagios/etc/objects目录，编辑命令配置文件commands.cfg （使用之前的py脚本发送告警信息）
增加如下内容
修改联系人配置文件 contacts.cfg，将默认告警方式改为钉钉
define contact{ contact_name nagiosadmin ; Short name of user use generic-contact ; Inherit default values from generic-contact template (defined above) service_notification_period 24x7 ; host_notification_period 24x7 ; alias Nagios Admin ; Full name of user email nagios@localhost ; service_notification_commands notify-service-by-DD ; host_notification_commands notify-host-by-DD ; }修改完成后，用以下命令检查配置文件是否有误：
[root@yunwei_server ~]# /usr/local/nagios/含蓄的康乃馨/nagios -v /usr/local/nagios/etc/nagios.cfg
Nagios Core 4.2.1
Copyright (c) 2009-present Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 09-06-2016
License: GPL
Website: https://www.nagios.org
Reading configuration data...
Read main config file okay...
Read object config files okay...
Running pre-flight check on configuration data...
Checking objects...
Checked 19 services.
Checked 43 hosts.
Checked 2 host groups.
Checked 0 service groups.
Checked 1 contacts.
Checked 1 contact groups.
Checked 33 commands.
Checked 5 time periods.
Checked 0 host escalations.
Checked 0 service escalations.
Checking for circular paths...
Checked 43 hosts
Checked 0 service dependencies
Checked 0 host dependencies
Checked 5 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...
Total Warnings: 0
Total Errors: 0
Things look okay - No serious problems were detected during the pre-flight check
------------------------------------------------------------------------------------------------------------
最后结果为0，则说明配置文件正常
重启nagios服务 #service nagios restart
三、shell监控脚本调用
【判断网站状态，出现502等状态即告警】
[root@yunwei_server ~]# cat /home/shell/Web_Status_Check.sh
【判断mysql同步状态】
[root@yunwei_server ~]# cat /home/shell/mysql-slavestatuscheck.sh
给上述脚本设置定时任务
*/15 * * * * /home/shell/Web_Status_Check.sh #网站状态检查每15分钟一次
30 */2 * * * /home/shell/mysql-slavestatuscheck.sh #mysql主从同步检查，每两个小时
2020.04.01 愚人节 深圳南山.南海大道