Route 53 DDNS example python

ddns.py

#aws library
import boto.route53
import urllib2
import string
import datetime

print str(datetime.datetime.utcnow())+" - Starting ddns.py"

#Credentials
aws_access_key_id = 'KkRbWpoyqLHo69dvoskn'
aws_secret_access_key = 'VXFvVu0ckOYP22WYxAz9TyoNYC8Rx1WVLVFK3Fyc'
domain = 'example.com.'
aws_region = 'us-west-2'
zone_id = 'Z2DKEZEXAMPLE1'
record_name = 'home.example.com

#get output from ip.changeip.com
url = 'http://ip.changeip.com'
req = urllib2.Request(url)
res = urllib2.urlopen(req)
data = res.read()
#grab first line and save to ip
lines = string.split(data, '\n')
ip = lines[0]

print str(datetime.datetime.utcnow())+" - Detected IP:"+ip

#Connect to aws
conn = boto.route53.connect_to_region(aws_region)
#get zone
zone = conn.get_hosted_zone_by_name(domain)
#get record set
record_set = boto.route53.record.ResourceRecordSets(conn,zone_id,'')
#get record
record = record_set.add_change('UPSERT',record_name,'A',300,zone.Id)
#set ip
record.add_value(ip)
#save
record_set.commit()