LightSail website monitoring script

gistfile1.txt

#!/bin/bash

#setting variables
now=$(date)
domain="https://$1"
log="webmon.log"

#checking if no arguments
if [[ $1 = "" ]]; then
  echo "Format: webmon.sh https://domain.com"
  exit
fi

#checking website
if curl -s --head  --request GET $domain | grep "200 OK" > /dev/null; then 
  echo "$now $domain is UP." >> $log
else
  echo "$now $domain is DOWN. Rebooting $domain." >> $log
  aws lightsail reboot-instance --instance-name $1 --profile lightsail --region us-east-2 >> $log
fi

# add it to your crontab
# */5 * * * * /bin/bash /home/ubuntu/webmon.sh yourdomain.com

# cat the webmon.log to view the log.