zabbix 监控 WEB 应用性能

时间：2021-10-16 17:24:42

1.介绍
使用 zabbix_sender 发送采集的 WEB 状态值，使用 pycurl 来采集 WEB 状态
zabbix_sender发送数据，需保证主机名与zabbix server记录的主机名一致
2.实现
Python 脚本如下：

#!/usr/bin/env python

#coding=utf-8

import os

import sys

import fileinput

import pycurl

import logging

hostname = "\"Zabbix server\""

zabbix_server = "127.0.0.1"

zabbix_sender = "/usr/local/zabbix/bin/zabbix_sender"

list = ['www.ksgame.com','cdn.ksgame.com']

key = ['HTTP_ResSize','HTTP_ResTime','HTTP_ResCode','HTTP_ResSpeed']

log_file = "/tmp/HTTP_Response.log"

logging.basicConfig(filename=log_file,level=logging.INFO,filemode='w')

run_cmd="%s -z %s -i %s > /tmp/HTTP_Response.temp" % (zabbix_sender,zabbix_server,log_file)

print run_cmd

class Test():

        def __init__(self):

                self.contents = ''

        def body_callback(self,buf):

                self.contents = self.contents + buf

def Check_Http(URL):

        t = Test()

        #gzip_test = file("gzip_test.txt", 'w')

        c = pycurl.Curl()

        c.setopt(pycurl.WRITEFUNCTION,t.body_callback)

        #请求采用Gzip传输

        #c.setopt(pycurl.ENCODING, 'gzip')

        try:

            c.setopt(pycurl.CONNECTTIMEOUT, 60) #链接超时

            c.setopt(pycurl.URL,URL)

            c.perform() #执行上述访问网址的操作

        except pycurl.error:

            print "URL %s" % URL

        Http_Document_size = c.getinfo(c.SIZE_DOWNLOAD)

        # Http_Download_speed = round((c.getinfo(pycurl.SPEED_DOWNLOAD) /1024),2)

        Http_Download_speed = round((c.getinfo(pycurl.SPEED_DOWNLOAD) ),2)

        Http_Total_time = round((c.getinfo(pycurl.TOTAL_TIME) * 1000),2)

        Http_Response_code = c.getinfo(pycurl.HTTP_CODE)

        logging.info(hostname +' ' +key[0] + '[' + k + ']' + ' '+str(Http_Document_size))

        logging.info(hostname +' ' +key[1] + '[' + k + ']' + ' '+str(Http_Total_time))

        logging.info(hostname +' ' +key[2] + '[' + k + ']' + ' '+str(Http_Response_code))

        logging.info(hostname +' ' +key[3] + '[' + k + ']' + ' '+str(Http_Download_speed))

def runCmd(command):

    for u in list:

            URL = u

            global k

            if u.startswith('https:'):

                k = u.split('/')[2]

            else:

                k=u.split('/')[0]

                Check_Http(URL)

    for line in fileinput.input(log_file,inplace=1):

        print line.replace('INFO:root:',''),

    return os.system(command)

runCmd(run_cmd)

Check_HTTP_Response.py

如果需要监控多个网站，修改 list 里的网站地址 添加计划任务, 每 5 分钟采集一次
监控key：
响应时间：HTTP_ResTime[www.test.com]
状态码：HTTP_ResCode[www.test.com]
文档大小：HTTP_ResSize[www.test.com]
下载速度：HTTP_ResSpeed[www.test.com]
测试能否使用zabbix_sender正常工作：./zabbix_sender -s "Zabbix server" -z 127.0.0.1 -k HTTP_ResCode[www.test.com] -o 200
zabbix server 添加监控模板、监控项、触发器
zabbix 监控 WEB 应用性能

若域名较多，且存在无法访问的情况，请注意修改脚本中的超时时间，避免长时间无法结束进程

## 测试zabbix_sender
[zabbix_sender](https://www.zabbix.com/documentation/3.0/manpages/zabbix_sender)
> 模版中的监控项的监控类型需改为 "Zabbix 采集器"
配置 -> 模板 -> Template OS Linux -> 监控项 -> "Checksum of /etc/passwd" -> 类型 -> 选择"Zabbix 采集器"
```
# 测试修改密码后是否有告警
# -s, 测试告警机器的主机名
# -z, --zabbix-server server (Hostname or IP address of Zabbix server.)
./zabbix_sender -s "Zabbix server" -z 127.0.0.1 -k "vfs.file.cksum[/etc/passwd]" -o 1198677232
```
测试完成后还原监控类型

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