#!/usr/bin/bash#memery monitor#定义一个内存监控函数，超过阀值每小时发送一封警告邮件function memerymonitor(){while :doa=40mem_use=`free | awk 'NR==2{print $6}'`mem_total=`free | awk 'NR==2{print $2}'`mem_per=`echo "scale=2;$mem_use/$mem_total" | bc -l | cut -d. -f2`if [ $mem_per -ge $a ]thenecho "memery warn ! memery warn ! greater than ${a}%"python /opt/warnmail.py ##调用python mail 发送警告邮件模块sleep 3600elseecho "memery health ,memery used ${mem_per}%,No more than ${a}%"sleep 3fidone}#####调用内存监控函数memerymonitor ###内存健康状态
####内存告警状态
############硬盘存储计算模块开始#######################!/usr/bin/bash#定义硬盘监控函数，超过阀值10 则发送告警邮件function diskmon(){while :doa=10disk_total=`df | awk 'NR==4{print $2}'`disk_use=`df | awk 'NR==4{print $3}'`disk_compute=`echo "scale=2;$disk_use/$disk_total" | bc -l | cut -d. -f2`if [ $disk_compute -ge $a ]then echo "!!!!!!!!!disk warn !!!!!!!!!!!!!!!!!disk warn alread use ${disk_compute}!!!!!!!! alread greater than ${a}" >> /opt/diskstoragemonitor.log ##日志保存目录sleep 3python /opt/warnmail.py #调用python Email 发送告警模块sleep 360 elseecho "######## diskstorage health ,no greater than ${a}########"sleep 3fidone }调用函数diskmon############硬盘计算模块结束###################### ###硬盘监控邮件发送成功
#################### python告警邮件发送模块开始###############################!/usr/bin/python# -*- coding: UTF-8 -*-import smtplibimport email.mime.multipartimport email.mime.textmsg = email.mime.multipart.MIMEMultipart()msg['Subject'] = 'django song, bring me back'msg['From'] = 'tonyjhki@163.com'msg['To'] = 'tonyjhki@163.com'content = '''############################!!!!!! memery warn !!! disk warn !!!!'''txt = email.mime.text.MIMEText(content,_charset='utf-8')msg.attach(txt)smtp = smtplib.SMTP()smtp.connect('smtp.163.com', '25')smtp.login('tonyjhki', '123123QAZqazwsx')smtp.sendmail('tonyjhki@163.com', 'tonyjhki@163.com', msg.as_string())smtp.quit()print('send mail successfully!')###################告警邮件发送模块结束############################# #####邮件发送测试：
##########执行告警邮件发送成功#############
监控脚本 实时运行
用crontab 工具实现全天监控：
crontab -e -u root* * * * * /opt/memeryanddiskmttwo.sh
