使用python监控错误日志

2019-10-11  本文已影响0人  至爱雅鸿_e631

前言

由于单位尚没有完善的监控制度,且项目也较少,使用开源的监控组件有点小题大做,因此研究了基于python的错误日志监控,功能如下:

具体实现

前置条件
画一下流程图
image.png

废话不多说直接上代码代码风格是按照java来的 -_-

#!/usr/bin/env python3
#!coding:utf-8

import subprocess
import datetime
import smtplib
from email.mime.text import MIMEText
from email.utils import formataddr
import os
import string

#告警接收人
toUser = ['zhiaiyahong@yhwch.com']
#异常白名单,白名单内的异常不通知,基于字符串包含进行过滤
excludeClassErrorList = ['TripleDesCryptoHandler']

mySender='xxx@qq.com'    # 发件人邮箱账号 改为本人账号
myPass = 'xxxx'              # 发件人邮箱密码(当时申请smtp给的口令)

def grep(filename, arg):
    process = subprocess.Popen(['grep', '-n', arg, filename], stdout=subprocess.PIPE)
    stdout, stderr = process.communicate()
    return stdout

def sendMail(toUser,content,titles):
    msg=MIMEText(content,'html','utf-8')
    msg['From']=formataddr(["异常日志监控告警",mySender])
    msg['To']=",".join(toUser)
    msg['Subject']=titles
    server=smtplib.SMTP_SSL("smtp.qq.com", 465)
    server.login(mySender, myPass)
    server.sendmail(mySender,toUser,msg.as_string())
    server.quit()# 关闭连接
    print("邮件发送完毕")
    
def excludeClassError(errorItem):
    for x in excludeClassErrorList:
        if x in errorItem:
            return True
    return False

nowDate = datetime.datetime.now()
nowSecond = (nowDate+datetime.timedelta(minutes=-1)).strftime("%Y-%m-%d %H:%M")
errorFileName = nowDate.strftime("%Y-%m-%d")
errorFileName = "/opt/logs/error-"+errorFileName+".log"

if not os.path.isfile(errorFileName):
    print(errorFileName,"文件不存在,无错误日志,万事大吉")
else:
    printout = grep(errorFileName,nowSecond)
    printout = printout.decode()
    errorList = printout.split('\n')
    errorInfo = ""
    for x in errorList:
        if(excludeClassError(x)):
            print("忽略异常",x)
        else:
            errorInfo = errorInfo + x
        
    if(errorInfo == ''):
        print(nowSecond,"无错误日志万事大吉")
    else:
        print(errorInfo)
        content = "时间:"+nowSecond+"<br>异常简略:"+errorInfo+"<br>详细请登录服务器查看日志,目录:"+errorFileName
        titles = "【大事】大批空指针来袭,祝发际线高升"
        sendMail(toUser,content,titles)

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