{
    "options": {
        "defaults": {
            "repo": "{{ file.server }}/ubuntu",
            "version": "trusty",
            "baseUrl": "install/netboot/ubuntu-installer/amd64",
            "kargs": {
                "live-installer/net-image": "{{ file.server }}/ubuntu/install/filesystem.squashfs"
            }
        }
    }
}