launch_ubuntu_instance.yml

---
# This playbook is an example for deploying multiple instances into EC2/Euca and "doing something" with them.
#   - uses the ec2 and ec2_vol module.
#
# Run this with ansible-playbook and supply the private key for your EC2/Euca user (to access the instance in the second play), e.g:
# ansible-playbook eucalyptus-ec2-deploy.yml -v --private-key=/path/to/ec2/pri/key
- name: Set up a new ubuntu instance and register it in your ansible inventory file
  hosts: local
  connection: local
  user: root
  gather_facts: false

  vars:
      keypair: pd-app-server
      instance_type: c1.medium
      security_group: default
      image: ami-d0f89fb9 # default ubuntu, provided by the aws wizard

  tasks:
    # Launch 1 instances with the following parameters.  Register the output.
    - name: Launch instance
      local_action: ec2 key_name={{keypair}} group={{security_group}}
                    instance_type={{instance_type}} image={{image}}
                    instance_tags='{"Name":{{instance_name}}, "role":"dev"}'
                    wait=true count=1
      register: ec2

    # Use with_items to add each instance's public IP to a new hostgroup for use in the next play.
    - name: Add new instances to host group
      local_action: add_host hostname={{item.public_ip}} groupname=dev
      with_items: ${ec2.instances}

    # Use the ec2_vol module to create volumes for attachment to each instance. Use with_items to attach to each instance (by returned id) launched previously.
    #- name: Create a volume and attach
      #local_action: ec2_vol volume_size=10 instance={{item.id}}
                    #ec2_access_key={{access_key}} ec2_secret_key={{secret_key}}
      #with_items: ${ec2.instances}

/etc/ansible/hosts looks like this:

[local]
localhost ansible_connection=local