python实现监控磁盘情况，并邮件报警

#coding:utf-8
import os
import re
import smtplib
import datetime
import shelve
from email.mime.text import MIMEText

# 硬盘使用率报警阀值
hd_usage_rate_threshold = 80

# 要发给谁
mailto_list=["******@17guagua.com","******@17guagua.com"]

# 设置服务器，用户名、口令以及邮箱的后缀
mail_host="smtp.17guagua.com"
mail_user="******@17guagua.com"
mail_pass="******"
mail_postfix="17guagua.com"

# 日志偏移
log_offset = shelve.open('log_offset')

# 取当天日期
log_path_suffix=(datetime.date.today()).strftime('%Y-%m-%d')

# 当前日期key
cur_time = 'cur_time'

# 日志路径
app_info = {}
app_info['event'] = ['/opt/log/guagua_web_event_extends/event-ext-'+log_path_suffix+'.log',['失败','异常'],[]]

# 处理日志
def analysis_log(appName ,appInfo):
cur_time_val = get_shelve_value(cur_time)
if cur_time_val == -1:
set_shelve_value(cur_time, log_path_suffix)
elif log_path_suffix != cur_time_val:
set_shelve_value(appName, 0)
set_shelve_value(cur_time, log_path_suffix)

f1 = file(appInfo[0], "r")
offset = get_shelve_value(appName)
if offset != -1:
f1.seek(offset,1)
else:
set_shelve_value(appName, 0)
count = 0
exceptionStr = ""
for s in f1.readlines():
searchKey = appInfo[1]
if len(searchKey) > 0:
for i in searchKey:
li = re.findall(i, s)
if len(li) > 0:
count = count + li.count(i)
exceptionStr = exceptionStr + " " + s
else:
li = re.findall('Exception', s)
if len(li) > 0:
count = count + li.count('Exception')
exceptionStr = exceptionStr + " " + s
set_shelve_value(appName, f1.tell())
print appName + " 异常数量为 " + str(count)
return [count, "---------------------------------" + appName + " ----------------------------- \n " + exceptionStr]

#shelve 处理
def set_shelve_value(key, value):
log_offset[key] = value

def get_shelve_value(key):
if log_offset.has_key(key):
return log_offset[key]
else:
return -1

def del_shelve_value(key):
if log_offset.has_key(key):
del log_offset[key]

# 发送邮件
def send_mail(to_list,sub,content):
me = mail_user + "<"+ mail_user + "@" + mail_postfix + ">"
msg = MIMEText(content, 'html', 'utf-8')
msg['Subject'] = sub
msg['From'] = me
msg['To'] = ";".join(to_list)
try:
s = smtplib.SMTP()
s.connect(mail_host)
s.login(mail_user,mail_pass)
s.sendmail(me, to_list, msg.as_string())
s.close()
return True
except Exception, e:
print str(e)
return False

# 获得外网ip
def get_wan_ip():
cmd_get_ip = "/sbin/ifconfig |grep 'inet addr'|awk -F\: '{print $2}'|awk '{print $1}' | grep -v '^127' | grep -v '192'"
get_ip_info = os.popen(cmd_get_ip).readline().strip()
return get_ip_info

# 检测硬盘使用
def check_hd_use():
cmd_get_hd_use = '/bin/df'
try:
fp = os.popen(cmd_get_hd_use)
except:
ErrorInfo = r'get_hd_use_error'
print ErrorInfo
return ErrorInfo
re_obj = re.compile(r'^/dev/.+\s+(?P<used>\d+)%\s+(?P<mount>.+)')
hd_use = {}
for line in fp:
match = re_obj.search(line)
if match is not None:
hd_use[match.groupdict()['mount']] = match.groupdict()['used']
fp.close()
return  hd_use

# 硬盘使用报警
def hd_use_alarm():
for v in check_hd_use().values():
if int(v) > hd_usage_rate_threshold:
if send_mail(mailto_list,
'System Disk Monitor',
'nSystem Ip:%s\nSystem Disk Use:%s'
% (get_wan_ip(),check_hd_use())):
print  "sendmail success!!!!!"
else:
print "disk not mail"

if __name__ == '__main__':
hd_use_alarm()
exceptionCount = 0
exceptionContents = "";
for key in app_info:
exceptionContent = analysis_log(key, app_info[key])
exceptionCount += exceptionContent[0]
exceptionContents += exceptionContent[1]
exceptionContents = exceptionContents + "*********************************************** \n"

print exceptionCount
if exceptionCount > 0:
if send_mail(mailto_list, get_wan_ip() + " 日志报警",exceptionContents):
print "发送成功"
else:
print "发送失败"

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