packer

{
    "variables": {
        "aws_access_key": "{{env `AWS_ACCESS_KEY`}}",
        "aws_secret_key": "{{env `AWS_SECRET_KEY`}}",
    },
    "builders": [
        {
            "access_key": "{{user `aws_access_key`}}",
            "secret_key": "{{user `aws_secret_key`}}",
            "ami_name": "latest-{{timestamp}}",
            "ami_description":"Base Image",
            "instance_type": "m3.medium",
            "region": "us-east-1",
            "source_ami": "ami-1111111",
            "subnet_id": "subnet-1111111",
            "vpc_id": "vpc-1111111",
            "ssh_username": "ubuntu",
            "type": "amazon-ebs",
            "ami_regions": [
		    "eu-west-2", 
		    "us-west-1", 
		    "ap-southeast-2"
	    ],
	    "tags": {
	      "Name": "packer-test"
	    }
        }
    ],
    "provisioners": [
        {
            "type": "shell",
            "script": "script.sh",
            "pause_before": "30s"
        }
    ]
}