Simple Script + Cron Job for Website Health Check + Apache Restart

2 comments on: Simple Script + Cron Job for Website Health Check + Apache Restart

1. 
   Lyubo

   6 years ago Reply

   Nice topic!
   Here is my version. Suspecting that apache service may not be able to log any 500 messages while down, I am checking if it is active. I had to add multiple ‘state’ variables, because once invoked at the first line it remains “inactive” during the whole script execution, wherever I call it in the code. If inactive it will try to start it first, if still inactive ( second state variable ) then it will try restarting it.

   STATE=`systemctl status apache2 | grep Active | awk ‘{print $2}’`
   DATE=`date | awk ‘{print $2″ “$3” “$4}’`
   DAEM=”[web server health check]”
   if [[ $STATE != “active” ]]; then
   echo “apache state is $STATE, trying to start it” | mail -s “apache_state alert” lyubomir_minchev.bg;
   echo “$DATE $DAEM Apache service is $STATE attempting to start it” >> /var/log/apache2/healthcheck.log
   systemctl start apache2
   sleep 6
   STATE1=`systemctl status apache2 | grep Active | awk ‘{print $2}’`
   if [[ “$STATE1” != “active” ]]; then
   echo “apache state is still $STATE1 after starting, trying to restart it” | mail -s “apache_state alert” lyubomir_minchev.bg;
   echo “$DATE $DAEM apache state is still $STATE1 after starting, trying to restart it” >> /var/log/apache2/healthcheck.log
   systemctl restart apache2
   sleep 6
   STATE2=`systemctl status apache2 | grep Active | awk ‘{print $2}’`
   if [[ $STATE2 == “acive” ]];then
   echo “apache state is $STATE2 and it was successfully restarted” | mail -s “apache_state alert” lyubomir_minchev.bg;
   echo “$DATE $DAEM apache state is $STATE2 and it was successfully restarted” >> /var/log/apache2/healthcheck.log
   fi
   else
   echo “$DATE $DAEM apache state is now $STATE1, and was successfully started” >> /var/log/apache2/healthcheck.log
   fi
   else
   echo “$DATE $DAEM apache service is $STATE and it looks good” >> /var/log/apache2/healthcheck.log
   fi

• 
  kali

  5 years ago Reply

  Thanks good comments