用python监控服务器的cpu,磁盘空间,内存,超过邮件报警

监控Linux服务器嘛，脚本逻辑基本上是用os.popen模块，然后把获取到的结果通过split切分成一个list，再拿目标list值和我阈值对比，超过就邮件报警；

邮件是通过Linux的mailx发出去的，可自行搜索安装该模块，关键字：“Linux使用mailx发邮件”，脚本如下：

一、cpu ideal值，不小于20％

#!/usr/bin/python
# -*- coding: utf-8 -*-
 
import datetime
import os
 
 
f = os.popen('vmstat').readlines()
cpu_ideall = str(f).split()[-3]
if int(cpuideall) > 20:
    mail_content = "echo 'ip:IP地址(vmstat)' | mailx -s '[Warning!]CPU ideal below 20％, please check!' 收件邮箱"
    os.popen(mail_content)
else:
    pass

二、磁盘空间，不大于95％

#!/usr/bin/python
# -*- coding: utf-8 -*-
 
import datetime
import os
 
 
f = os.popen('df -lh').readlines()
s = []
s.append(str(f).split()[11].split('％')[0])
s.append(str(f).split()[-8].split('％')[0])
s.append(str(f).split()[-2].split('％')[0])
print s
 
i = 0
while i < len(s):
    if int(s[i]) > 95:
    mail_content = "echo 'ip:ip地址(df -lh)' | mailx -s '[Warning!]Disk above 95％, please check!' 收件邮件"
        os.popen(mail_content)
    else:
    pass
    i = i + 1

三、内存利用率，不低于200

#!/usr/bin/python
# -*- coding: utf-8 -*-
 
import datetime
import os
 
 
f = os.popen('free -m').readlines()
memm = str(f).split()[10]
if int(memm) < 200:
    mail_content = "echo 'ip:ip地址(free -m)' | mailx -s '[Warning!]MEM below 200, please check!' 收件邮箱"
    os.popen(mail_content)
else:
    pass

来源：https://www.cnblogs.com/hydd/p/14338361.html