{
  "variables": {
    "aws_access_key": "",
    "aws_secret_key": ""
  },
  "builders": [{
    "type": "amazon-ebs",
    "access_key": "{{user `aws_access_key`}}",
    "secret_key": "{{user `aws_secret_key`}}",
    "region": "ap-southeast-2",
    "availability_zone": "ap-southeast-2a",
    "source_ami": "ami-1711732d",
    "instance_type": "t2.micro",
    "ssh_username": "ubuntu",
    "ami_name": "APP-test {{timestamp}}",
    "security_group_id": "api",
    "vpc_id": "vpc-XXXXX"
  }]
}