{ "provider": "ec2", "virtualization": "pvm", "credentials": { "access-key": null, "secret-key": null }, "bootstrapper": { "mount_dir": "/target" }, "image": { "name": "debian-{release}-{architecture}-{virtualization}-{%y}{%m}{%d}", "description": "Debian {release} {architecture} AMI ({virtualization})" "bucket": "" }, "system": { "release": "wheezy", "architecture": "amd64", "timezone": "UTC", "locale": "en_US", "charmap": "UTF-8" }, "volume": { "backing": "s3", "filesystem": "ext4", "size": 1024 } }