Ghetto Pi Monitor & Server Restart

monitor.sh

#!/bin/bash
LOGFILE="/home/pi/status.log"
MAILGUN_API_KEY="XXXXXXXX"
MAILGUN_DOMAIN="XXXXXX"
SENDER="XXXXXXX"
RECEPIENT="XXXXX"
SUBJECT="Server Down"
TEXT="Restarting Server..."

echolog()
(
echo $1
echo $1 >> $LOGFILE
)

while [ : ]
do
  api=`curl -s "https://api.domain.com" | grep -c "API"`
  webpage=`curl -s "https://www.domain.com" | grep -c "Hello"`
  tracking=`curl -s "https://tracking.domain.com" | grep -c "Tracking"`
  portal=`curl -s "https://portal.domain.com" | grep -c "Portal"`
  if [ "$api" != "0" ] && [ "$webpage" != "0" ]  && [ "$tracking" != "0" ] && [ "$portal" != "0" ]; then
    echolog "`date +"%Y-%m-%d %T"` UP"
    sleep 120
  else
   echolog "`date +"%Y-%m-%d %T"` DOWN"
   curl -s --user "api:$MAILGUN_API_KEY" \
     https://api.mailgun.net/v3/"$MAILGUN_DOMAIN"/messages \
     -F from="$SENDER" \
     -F to="$RECEPIENT" \
     -F subject="$SUBJECT" \
     -F text="$TEXT"
   curl -X POST  "https://webhook.domain.com/restart-server"
     sleep 300
  fi
done

Super ghetto but wanted a simple remote bot to monitor a website and restart it if it's down. Also sends an email to let me know.

1. Setup raspberry pi
2. Add script above to /home/pi
3. Replace XXXX with keys
4. Replace URLs for api, webpage, tracking, portal
5. Change https://webhook.domain... to webhook to restart server