replicate_5122.json

{
 "variables": {
        "aws_access_key": "{{env `AWS_ACCESS_KEY_ID`}}",
        "aws_secret_key": "{{env `AWS_SECRET_ACCESS_KEY`}}",
        "region":         "{{env `AWS_DEFAULT_REGION`}}"
    },
    "builders": [
        {
            "access_key": "{{user `aws_access_key`}}",
            "ami_name": "packer-qs-{{timestamp}}",
            "instance_type": "t2.micro",
            "region": "us-west-2",
            "ami_regions": ["us-east-2"],
            "secret_key": "{{user `aws_secret_key`}}",
            "source_ami": "ami-12345",
            "ssh_username": "ubuntu",
            "type": "amazon-ebs",
            "encrypt_boot": true,
            "kms_key_id": "my-west2-kms-key-id",
            "region_kms_key_ids": {
                "us-east-2": "my-east2-kms-key-id"
            }
        }
    ]
}