docker-ami.json

{
  "description": "Docker-capable AMI for Amazon EC2",

  "variables": {
    "aws_access_key": "",
    "aws_secret_key": "",
    "aws_region": "",
    "docker_version": "1.6.0",
    "source_ami": "",
    "instance_type": "t2.micro"
  },

  "builders": [{
    "type": "amazon-ebs",
    "access_key": "{{user `aws_access_key`}}",
    "secret_key": "{{user `aws_secret_key`}}",
    "region": "{{user `aws_region`}}",
    "source_ami": "{{user `source_ami`}}",
    "instance_type": "{{user `instance_type`}}",
    "ssh_username": "ubuntu",
    "ami_name": "docker-{{user `docker_version`}} ({{timestamp}})",
    "vpc_id": "{{user `vpc_id`}}",
    "subnet_id": "{{user `subnet_id`}",
    "associate_public_ip_address": "{{user `public_ip`}}"
  }],

  "provisioners": [{
    "type": "shell",
    "environment_vars": [
      "docker_version={{user `docker_version`}}"
    ],
    "scripts": ["provision.sh"]
  }]
}