DDNS update for Cloudflare with dual WAN support

updateIPCloudflare.sh

#!/usr/bin/env bash

zoneID=""
ID=""
APIToken="-"
name="."
days=2020
result=""

# */5 * * * * /home/pi/.firewalla/config/post_main.d/updateIPCloudflare.sh >/dev/null 2>&1walla" ]; then
# currentIP=$(curl -s ifconfig.me/ip)
# currentIP=$(ifconfig eth0 | grep "inet" | grep netmask | cut -f2 -d"t" | sed -e 's| ||g' -e 's|[a-zA-Z]||g')


DIRECTORY=$(cd `dirname $0` && pwd)
log="$DIRECTORY/updateIP.log"
touch $log
echo $log
		
logMe () {
	echo "$(tail -n $days  $log)" > $log
}

IPINFO=$(curl -s https://ipinfo.io/)
provider=$(echo $IPINFO | jq ".org" | grep Sail)
currentIP=$(echo $IPINFO | jq ".ip" | sed -e 's|"||g')

echo $(date) Org: $provider | tee -a $log
echo $(date) IP:  $currentIP | tee -a $log


if [ -n "$provider" ]; then
	echo $(date) "Sail away!" | tee -a $log
else
	echo $(date) "LTE: skipping update..." | tee -a $log
	logMe
	exit
fi

cloudflaresays=$(curl -s -X GET "https://api.cloudflare.com/client/v4/zones/$zoneID/dns_records?type=A&name=private.thebiermans.net&page=1&per_page=5&match=all" \
	-H "Authorization: Bearer $APIToken" \
	-H "Content-Type: application/json" | grep content | sed -e 's|{.*"content":"||g' | sed -e 's|","proxiable.*||g')

echo "Current:"  $currentIP 
echo "clouddlare" $cloudflaresays

if [ "$1" = "-f" ] ; then
	cloudflaresays="666"
	result="(forced update)"
	echo "May the force be with you, $cloudflaresays"
fi

if [ "$currentIP" = "$cloudflaresays" ] ; then
	echo $(date) "No change required" | tee -a $log
	logMe
	exit
else
	curl -s -X PATCH "https://api.cloudflare.com/client/v4/zones/$zoneID/dns_records/$ID" \
	-H "Authorization: Bearer $APIToken" \
	-H "Content-Type: application/json" \
	--data '{"type":"A","name":"'$name'","content":"'$currentIP'","ttl":600,"proxied":false}' > \
	/dev/null && echo $(date) $name was updated to: $currentIP $result | tee -a $log
fi

logMe

Run through cron.
To create scheduled jobs, you may add your own cronjob by putting cronjob expression in this file. It will be incorporated to the system crontab when Firewalla service restarts.

/home/pi/.firewalla/config/user_crontab
Example:

pi@firewalla:~ (Firewalla) $ cat ~/.firewalla/config/user_crontab

• • • • • /bin/bash -c "date" &> /tmp/date.log
          You can verify if it's incorporated by running "crontab -l"

See also https://github.com/ccpk1/Firewalla-Gold-Tools/blob/main/cloudflare/cloudflare_ddns_update.sh