{ "builders": [{ "type": "amazon-ebs", "ami_name": "packer-test {{timestamp}}", "instance_type": "m1.small", "region": "us-east-1", "ssh_username": "ubuntu", "source_ami": "ami-0568456c", "tags": { "packer-test": "true" } }], "provisioners": [{ "type": "shell", "scripts": [ "script.sh" ] }] }