web environment automatic monitoring script

web environment

ngnix、php-fpm

Monitoring ideas

Use linux scheduled task to run every minute monitoring script that uses wget detection program is working, and then start later if the program is abnormal, get ngnix main process ID, kill off the process; get php-fpm main process ID, and then start after kill off process

Monitoring Script

Create a file monitor.sh

 1 #!/bin/sh
 2 wget --spider -t 1 -T 2 http://127.0.0.1:53727 -q
 3 if [ $? -ne 0 ]
 4 then
 5     ngnixpid=`ps aux|grep 'nginx: master'|grep -v grep|awk '{print $1}'`
 6     if [ -n "$ngnixpid" ]
 7     then
 8         kill -INT $ngnixpid        
 9     fi    
10     /ngnix/ngnix &
11     phppid=`ps aux|grep 'php-fpm: master'|grep -v grep|awk '{print $1}'`
12     if [ -n "$phppid" ]
13     then
14         kill -INT $phppid
15     fi
16     /usr/sbin/php-fpm -R &
17 fi

Create a scheduled task

Timing task execution file webmonitor

  * * * * * /etc/monitor.sh &> /dev/null 

Create a scheduled task when the device starts

ln -s /bin/busybox /bin/crontab
ln -s /bin/busybox /bin/crond
mkdir -p /var/spool/cron/crontabs
crontab /etc/webmonitor
/bin/crond -l 9

Because I'm using embedded devices, so regular tasks using a busybox in the crontab, if a general server, you can set up according to the situation.