---
driver:
  name: ec2
  aws_ssh_key_id: travis
  ssh_key: travis.pem

---
driver:
  name: ec2
  aws_ssh_key_id: travis
  ssh_key: travis.pem

platforms:
- name: ubuntu-12.04
  driver_config:
    image_id: ami-4df9cf24

Use an instance store AMI.
Use an instance store AMI.