---
# This playbook demonstrates how to use the ansible cloudformation module to launch an AWS CloudFormation stack.
#
# This module requires that the boto python library is installed, and that you have your AWS credentials
# in $HOME/.boto

#The thought here is to bring up a bare infrastructure with CloudFormation, but use ansible to configure it.
#I generally do this in 2 different playbook runs as to allow the ec2.py inventory to be updated.

#This module also uses "complex arguments" which were introduced in ansible 1.1 allowing you to specify the
#Cloudformation template parameters

#This example launches a 3 node AutoScale group, with a security group, and an InstanceProfile with root permissions.

#If a stack does not exist, it will be created.  If it does exist and the template file has changed, the stack will be updated.
#If the parameters are different, the stack will also be updated.

#CloudFormation stacks can take awhile to provision, if you are curious about its status, use the AWS
#web console or one of the CloudFormation CLI's.

#Example update -- try first launching the stack with 3 as the ClusterSize.  After it is launched, change it to 4
#and run the playbook again.

- name: provision stack
  hosts: localhost
  connection: local
  gather_facts: false

  # Launch the cloudformation-example.json template.  Register the output.

  tasks:
  - name: launch ansible cloudformation example
    cloudformation: >
      stack_name="ansible-cloudformation" state=present
      region=us-east-1 disable_rollback=true
      template=files/cloudformation-example.json
    args:
      template_parameters:
        KeyName: jmartin
        DiskType: ephemeral
        InstanceType: m1.small
        ClusterSize: 3
    register: stack
  - name: show stack outputs
    debug: msg="My stack outputs are {{stack.stack_outputs}}"