# Is used in AWS Lambda to sync stacks when autoscaling group changes.

import base64
import json
import urllib
import urllib2

def lambda_handler(event, context):
  print("Received event: " + json.dumps(event, indent=2))

  stack_id = event['Records'][0]['Sns']['Message']
  url = 'http://example.com/v2.0/stack/%s/sync' % stack_id
  username = 'root'
  password = 'pass'

  request = urllib2.Request(url, '')
  base64string = base64.encodestring('%s:%s' % (username, password)).replace('\n', '')
  request.add_header('Authorization', 'Basic %s' % base64string)
  request.add_header('Content-Type', 'application/json')

  urllib2.urlopen(request)