1.告警系统邮件引擎

定义邮件发送的脚本；

[root@yuioplvlinux-128 bin]# cd ../mail/
[root@yuioplvlinux-128 mail]# vim mail.py
#!/usr/bin/env python
#-*- coding: UTF-8 -*-
import os,sys
reload(sys)
sys.setdefaultencoding('utf8')
import getopt
import smtplib
from email.MIMEText import MIMEText
from email.MIMEMultipart import MIMEMultipart
from  subprocess import *
def sendqqmail(username,password,mailfrom,mailto,subject,content):
    gserver = 'smtp.163.com'
    gport = 25
 
    try:
        msg = MIMEText(unicode(content).encode('utf-8'))
        msg['from'] = mailfrom
        msg['to'] = mailto
        msg['Reply-To'] = mailfrom
        msg['Subject'] = subject
 
        smtp = smtplib.SMTP(gserver, gport)
        smtp.set_debuglevel(0)
        smtp.ehlo()
        smtp.login(username,password)
 
        smtp.sendmail(mailfrom, mailto, msg.as_string())
        smtp.close()
    except Exception,err:
        print "Send mail failed. Error: %s" % err
 
 
def main():
    to=sys.argv[1]
    subject=sys.argv[2]
    content=sys.argv[3]
##定义邮箱的账号和密码，你需要修改成你自己的账号和密码（请不要把真实的用户名和密码放到网上公开，否则你会死的很惨）
    sendqqmail('1234567@163.com','aaaaaaa','1234567@163.com',to,subject,content)
 
if __name__ == "__main__":
    main()

告警系统的邮件脚本如下：

[root@yuioplvlinux-128 mail]# vim mail.sh
log=$1
t_s=`date +%s`   #当前时间的时间戳
t_s2=`date -d "2 hours ago" +%s`   #2小时前的时间戳
if [ ! -f /tmp/$log ]
then
    echo $t_s2 > /tmp/$log
fi
t_s2=`tail -1 /tmp/$log|awk '{print $1}'`
echo $t_s>>/tmp/$log
v=$[$t_s-$t_s2]
echo $v
if [ $v -gt 3600 ]
then
    ./mail.py  $1  $2  $3
    echo "0" > /tmp/$log.txt   #计数器置0
else
    if [ ! -f /tmp/$log.txt ]   #/tmp/$log.txt不存在，则置0
    then
        echo "0" > /tmp/$log.txt
    fi
    nu=`cat /tmp/$log.txt`
    nu2=$[$nu+1]
    echo $nu2>/tmp/$log.txt
    if [ $nu2 -gt 10 ]   #大于10分钟
    then
         ./mail.py  $1 "trouble continue 10 min $2" "$3"
         echo "0" > /tmp/$log.txt
    fi
fi

2.运行系统告警

因为502脚本模拟起来比较麻烦，在mon.conf中，将502的脚本监控状态改为0；

to_mon_502=0

且在main.sh中注释该行，如下；

#exec 1>>../log/mon.log 2>>../log/err.log

然后执行主脚本main.sh，执行过程如下：

[root@yuioplvlinux-128 ~]# cd /usr/local/sbin/mon/bin
[root@yuioplvlinux-128 bin]# sh -x main.sh 
+ export send=1
+ send=1
++ grep -A1 'ens33: '
++ awk '/inet/ {print $2}'
++ /sbin/ifconfig
+ export addr=192.168.30.128
+ addr=192.168.30.128
++ pwd
+ dir=/usr/local/sbin/mon/bin
++ echo /usr/local/sbin/mon/bin
++ awk -F/ '{print $NF}'
+ last_dir=bin
+ '[' bin == bin ']'
+ conf_file=../conf/mon.conf
++ date '+%F %T'
+ echo '2018-07-18 22:19:38 load average'
2018-07-18 22:19:38 load average
+ /bin/bash ../shares/load.sh
22:19:38 load is 0
+ grep -q to_mon_502=1 ../conf/mon.conf