DynamicDNS For Use With AmazonRoute53

DynamicDNS.py

#!/usr/bin/env python
import stun
import socket
import route53

domainName = ''#Make sure this is a FQDN i.e. it should have a '.' at the end.
access_id = ''
secret_key = ''
hostedZoneID = '' #Get this from your aws account

try:
    #This can be changed to look at the aws record if you dont want to make a socket call to the machine.
    oldIP = socket.gethostbyname(domainName)
except:
    oldIP = 'Not found'

nat_type, current_ip, external_port = stun.get_ip_info()

conn = route53.connect(
    aws_access_key_id=access_id,
    aws_secret_access_key=secret_key,
)

zone = conn.get_hosted_zone_by_id(hostedZoneID)
#Find the recordset we are looking for and store it
recset = None
for record_set in zone.record_sets:
    if record_set.name == domainName:
        recset = record_set
        break

#if the IP has changed save it
if oldIP.__str__() != current_ip.__str__():
        #Print the old and current IP for logging purposes
        print oldIP.__str__()
        print current_ip.__str__()
        #Overwrite the existing records , this should always be a single IP as string 
        recset.records = [current_ip.__str__()]
        recset.save()
        print 'updated recset'

If you are unable to install pytz because of issues with pip , add the following to a file called requirements.txt
"pytz>=2013b"
and then install with with , pip install -r requirements.txt