shell 监控网站运行状态

shell监控网站状态，依靠返回状态码来进行判断，返回200,302认为状态是正常的，否则认为tomcat/nginx/LB/Haproxy/apache应用服务挂掉了。

脚本实现如下：

1、编写shell脚本实现监控功能，使用curl访问网站，过滤出返回的状态码当做判断条件，如有返回状态码非200/302则发送邮件报警

# cat /root/shell/monitor_site/check_site.sh 
#!/bin/bash

mysite=/root/shell/monitor_site/http_site
check_status=/root/shell/monitor_site/temp_status
historyfile=/root/shell/monitor_site/history/`date  +%Y-%m-%d`/`date +%T`
failurefile=/root/shell/monitor_site/history/`date  +%Y-%m-%d`/`date +%T`_failure
mkdir -pv /root/shell/monitor_site/history/`date  +%Y-%m-%d` &>/dev/null
for  site in `grep -v  -E "^#|^$"  $mysite`
do
   curl -s  -I  --connect-timeout 3 -m 10  $site  | grep  "HTTP/1.1"  | awk '{print $2}'  >  $check_status
   status=`cat $check_status`
   if [[ $status -eq 200 ]] || [[ $status -eq 302 ]]
   then
       echo  "###########################"             >>$historyfile
       echo  "http_site $site  Access Successful"      >>$historyfile
   else
       echo  "###########################"             >>$historyfile
       echo  "http_site $site  Access Failure"         >>$historyfile
   fi
done

grep "Access Failure" $historyfile  &>/dev/null
if      [ $? -eq 0 ]
then
       echo -e "\n\nThe following Service is not started !!!\n"  >> $failurefile
       echo -e "Please check the services !!!\n"  >> $failurefile
       echo -e "#############################################\n"  >> $failurefile
       grep "Access Failure" $historyfile  >> $failurefile
       echo -e "\n#############################################" >> $failurefile
       mail -s "SiLuTong_Web_Site_Check !!!"  liugh@qq.com 1368152xxxx@139.com  <  $failurefile
fi

2、监控网站列表，创建一个站点文件，把需要监控的地址URL都写到http_site文件里面

# cat /root/shell/monitor_site/http_site
# chinau-site
http://www.chinau.com.cn
http://boss.chinau.com.cn

# iaugold-site
http://www.iaugold.com
http://m.iaugold.com
http://api.iaugold.com

# b2b
http://www.silkeroad.com
http://supplier.silkeroad.com
http://admin.silkeroad.com

# b2c
http://www.silubuy.cn

# halal
http://www.srphalal.com
http://www.srphalal.com/adminLogin
http://www.srphalal.com/webs/getWebgoLogin

# Official websit
http://www.silkeroad.cn
http://www.silupay.com

3、配置报警发件邮箱

# cat /etc/mail.rc
set from=wmliuguohui@163.com
set smtp=smtp.163.com
set smtp-auth-user=wm@163.com
set smtp-auth-password=password
set smtp-auth=login

4、添加计划任务，每5分钟执行一次

# crontab -e
*/5 * * * * /bin/bash  /root/shell/monitor_site/check_site.sh > /dev/null 2>&1