Use shell scripts to monitor the running status of a website
I haven't written a blog for a long time. I've cleaned up almost all the blogs I've written before. It's good to write some when I want to write.
Shell monitors the status of the website / tomcat and relies on the return status code to determine the status. If 200302 is returned, the status is considered normal, otherwise the tomcat/nginx/LB/Haproxy/apache is considered to be dead. The script is implemented as follows:
1. Create a site folder and write all the addresses to be monitored into the http_site file.
Vim http_site
# Nginx site begin #
Http://192.168.129.86:38020
Http://192.168.129.86:38021
# Nginx site end #
# LB site begin #
Http://192.168.2.30:38020
Http://192.168.2.30:38024/38025task
# LB site end #
# Web site begin #
Http://192.168.129.91:8030
Http://192.168.129.93:8030
# Web site end #
# Task site begin #
Http://192.168.129.95:8032/38023task
Http://192.168.129.95:8033/38027task
# Task site end #
# Mobile site begin #
Http://192.168.129.92:8030
Http://192.168.129.92:8040
# Mobile site end #
two。 Write shell script to realize the monitoring function, use curl to visit the website, filter out the returned status code as a judgment condition, and send an email alarm if the return status code is not 200UniG302.
Vim check_site.sh
#! / bin/bash
Mysite=/root/script/check_http/http_site
Check_status=/root/script/check_http/temp_status
Historyfile=/root/script/check_http/history/ `date +% Ymuri% mmury% d` / `date +% T`
Failurefile=/root/script/check_http/history/ `date +% Ymuri% mmury% d` / `date +% T` _ failure
Mkdir / root/script/check_http/history/ `date +% Ymuri% mmurf% d` & > / dev/null
For site in `grep-v-E "^ # | ^ $" $mysite`
Do
Curl-s-I-connect-timeout 3-m 5$ site | grep "HTTP/1.1" | awk'{print $2}'> $check_status
Status= `cat $check_ status`
If [[$status-eq]] | | [[$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 tomcat 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 "SFA_Liby_Tomcat_Check!!" Baiyongjie@winchannel.net misterbyj@163.com tangzhiyu@winchannel.net
< $failurefile fi 3. 配置报警邮箱 vim /etc/mail.rc set hold set append set ask set crt set dot set keep set emptybox set indentprefix=">"
Set quote
Set sendcharsets=iso-8859-1 UTFMUF 8
Set showname
Set showto
Set newmail=nopoll
Set autocollapse
Ignore received in-reply-to message-id references
Ignore mime-version content-transfer-encoding
Fwdretain subject date from to
Set bsdcompat
Set from=15600970600@163.com
Set smtp=smtp.163.com
Set smtp-auth-user=15600970600@163.com smtp-auth-password=Password smtp-auth=login
4. Add scheduled tasks to run every 5 minutes
Crontab-e
* / 5 * / bin/bash / root/script/check_http/check_site.sh
5. The test script has been running for several days after it has been written, and the effect is good. Share it with you.
In order to verify the effect, several tomcat were stopped at 23:12 on June 14. After stopping, the script detected that tomcat was not running. A file record of _ failure was generated and an email was sent to achieve the alarm effect.
