Digital Ocean IP A record updater

crontab

*/15 * * * * python /path/to/ddns.py

ddns.py

#!/usr/bin/env python
import urllib2
import json

# Config
# NOTE: Requires Python 2.7
apiKey = ''  # Your DO api key
domain = ''  # The domain who's record you want to update (i.e. example.com)
record = ''  # The record (hostname) you want to update (i.e. myrecord of myrecord.example.com)


# Internal Consts
url = 'https://api.digitalocean.com/v2/domains/' + domain + '/records'
headers = {
	'Content-type': 'application/json',
	'Authorization': 'Bearer ' + apiKey,
}


# Internal functions
# Query the DO API
def query(p='', data=None):
	req = urllib2.Request(url + p, data, headers)

	if data is not None:
		req.get_method = lambda: 'PUT'

	res = urllib2.urlopen(req)
	return res.read().decode('utf8')


# Get the record
def get_record():
	res = json.loads(query())

	for rec in res['domain_records']:
		if rec['type'] == 'A' and rec['name'] == record:
			return rec

	raise Exception('Couldn\'t find record: %s' % record)


# 1. Get the current IP
ip = urllib2.urlopen('https://ipinfo.io/ip').read().strip()


# 2. Update the record
query(
	'/' + str(get_record()['id']),
	json.dumps({'data': ip}).encode('utf8')
)