Use python to create the stack. And setup DNS.

playbooks/edx-east/provision_new_stack.yml

+# Create a cloudformation stack.
+- name: Create cloudformation stack for {{STACK_NAME}}
+  hosts: localhost
+  connection: local
+  gather_facts: False
+  roles:
+    - launch_cfn
+
+# Provision Users on everything.
+- name: Create Users
+  hosts: tag_aws_cloudformation_stack-name_{{STACK_NAME}}
+  roles:
+    - gh_users

playbooks/roles/launch_cfn/defaults/main.yml

+---
+#
+# edX Configuration
+#
+# github:     https://github.com/edx/configuration
+# wiki:       https://github.com/edx/configuration/wiki
+# code style: https://github.com/edx/configuration/wiki/Ansible-Coding-Conventions
+# license:    https://github.com/edx/configuration/blob/master/LICENSE.TXT
+#
+##
+# Defaults for role launch_cfn
+# 
+
+#
+# vars are namespace with the module name.
+#
+launch_cfn_role_name: launch_cfn
+
+#
+# OS packages
+#
+
+launch_cfn_debian_pkgs: []
+
+launch_cfn_redhat_pkgs: []

playbooks/roles/launch_cfn/handlers/main.yml

+---
+#
+# edX Configuration
+#
+# github:     https://github.com/edx/configuration
+# wiki:       https://github.com/edx/configuration/wiki
+# code style: https://github.com/edx/configuration/wiki/Ansible-Coding-Conventions
+# license:    https://github.com/edx/configuration/blob/master/LICENSE.TXT
+#
+#
+#
+# Handlers for role launch_cfn
+# 
+# Overview:
+# 
+#
+- name: launch_cfn | notify me
+  debug: msg="stub handler"

playbooks/roles/launch_cfn/meta/main.yml

+---
+#
+# edX Configuration
+#
+# github:     https://github.com/edx/configuration
+# wiki:       https://github.com/edx/configuration/wiki
+# code style: https://github.com/edx/configuration/wiki/Ansible-Coding-Conventions
+# license:    https://github.com/edx/configuration/blob/master/LICENSE.TXT
+#
+##
+# Role includes for role launch_cfn
+# 
+# Example:
+#
+# dependencies:
+#   - {
+#   role: my_role 
+#   my_role_var0: "foo"
+#   my_role_var1: "bar"
+# }

playbooks/roles/launch_cfn/tasks/main.yml

+---
+#
+# edX Configuration
+#
+# github:     https://github.com/edx/configuration
+# wiki:       https://github.com/edx/configuration/wiki
+# code style: https://github.com/edx/configuration/wiki/Ansible-Coding-Conventions
+# license:    https://github.com/edx/configuration/blob/master/LICENSE.TXT
+#
+#
+#
+# Tasks for role launch_cfn
+# 
+# Overview:
+# Create a cloudformation stack.
+# 
+#
+# Dependencies:
+#
+# 
+# Example play:
+#
+#
+
+- name: Create the stack.
+  cloudformation: >
+    stack_name="{{CFN_NAME}}"
+    region="{{CFN_REGION}}"
+    template="/Users/feanil/src/configuration/cloudformation_templates/edx-reference-architecture.json"
+  args:
+    template_parameters:
+      KeyName: 'continuous-integration'
+

util/jenkins/create_stack.py

+import boto
+import time
+
+region = 'us-east-1'
+stack_name = 'testautostack'
+template = '/Users/feanil/src/configuration/cloudformation_templates/edx-reference-architecture.json'
+
+def create_stack(stack_name,region='us-east-1',template_file):
+  cfn = boto.connect_cloudformation()
+  stack_id = cfn.create_stack(stack_name,
+    stack_body=open(template).read(),
+    capabilities=['CAPABILITIY_IAM'],
+    notification_arns=['arn:aws:sns:us-east-1:372153017832:stack-creation-events'],
+    tags={'autostack':'true'})
+  
+  while True:
+    sleep(1)
+    stack_instance = cfn.describe_stacks(stack_id)[0]
+    status = stack_instance.stack_status
+    if 'COMPLETE' in status:
+      break
+    else:
+      print(status)
+
+
+create_stack(stack_name, region, template)
+
+print('Stack({}) created.'.format(stack_name))
+  
+# Create DNS for edxapp and xqueue.
+dns_settings = {
+  'edxapp'  : [ 'courses', 'studio' ],
+  'xqueue'  : [ 'xqueue' ],
+  'rabbit'  : [ 'rabbit' ],
+  'xserver' : [ 'xserver' ],
+  'worker'  : [ 'worker' ],
+}
+
+# Create a zone for the stack.
+zone_name = "{}.vpc.edx.org".format(stack_name)
+
+#TODO Make this a function instead of a class method.
+zone = get_or_create_hosted_zone(zone_name)
+
+elbs = boto.connect_elb()
+
+#TODO Implement this.
+stack_elbs = elbs_for_stack_name(stack_name)
+for elb in stack_elbs:
+  for service, dns_prefixes in dns_settings.items():
+    if service in elb.dns_name.lower():
+      for prefix in dns_prefixes:
+        # TODO: Make this function.
+        create_service_dns(elb, prefix, zone_name)
+
+
+