I recently need to update my DNS entry which is hosted in GoDaddy. GoDaddy supports API call to update DNS entries, which is amazing!!
You need to generate the API key and secret.
create the file below and cronjob it!
#!/bin/bash
domain="domain.tld"
type="A"
name="@"
ttl="3600"
port="1"
weight="1"
key="my-api-key"
secret="my-api-secret"
headers="Authorization: sso-key $key:$secret"
echo "Headers = " $headers
result=$(curl -X GET -H "$headers" "https://api.godaddy.com/v1/domains/$domain/records/$type/$name")
echo "Result = " $result
dnsIP=$(echo $result | grep -oE "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b")
echo "DNS IP = " $dnsIP
ret=$(curl -s GET "http://ipinfo.io/json")
currentIP=$(echo $ret | grep -oE "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b")
echo "Current IP = " $currentIP
if [ $dnsIP != $currentIP ];
then
echo "IP's are not equal, updating record"
curl -X PUT "https://api.godaddy.com/v1/domains/$domain/records/$type/$name" \
-H "accept: application/json" \
-H "Content-Type: application/json" \
-H "$headers" \
-d "[ { \"data\": \"$currentIP\", \"port\": $port, \"priority\": 0, \"protocol\": \"string\", \"service\": \"string\", \"ttl\": $ttl, \"weight\": $weight } ]"
fi
if [ $dnsIP = $currentIP ];
then
echo "IP's are equal, no update required"
fi
