code for checking the websites (specifically in apache) are running and restarting the server gracefully (so no users get kicked) after notifying an email address about it's down status

check_notify_restart.sh

#!/bin/bash

#
# ADD SUBDOMAINS THAT NEED TO BE KEPT RUNNING AND WARNED ABOUT IN THIS LIST SEPARATED BY SPACES
#
sites_list=(localhost 127.0.0.1 example.com subdomain.example.com)


#
# ADD YOUR EMAIL HERE, MAKING SURE THAT `echo "message" | sendmail user@domain.tld` 
#	works for your user and domain name when called ffrom the command line
#
email_recipient=user@localhost

#
# SCRIPT MUST BE RUN AS ROOT FOR APACHECTL TO AFFECT PORTS < 1024
#
if [ "$EUID" -ne 0 ]
  then echo "Please run as root"
  exit
fi

needs_restart=0
for site in "${sites_list[@]}"; do
	#echo $site;
	status=$(curl -s -o /dev/null -w '%{http_code}' $site);
	if [ $status -ne "200" ]; then
		needs_restart=1;
		message="website '${site}' responded with NOT OK response code '${status}'";
		echo $message | sendmail $email_recipient;
	fi;
done;

if [ $needs_restart -eq 1 ]; then 
	echo "restaring apache gracefully";
	apachectl graceful;
fi; 


exit;