define nspawn::template (
  String $template_name = $name,
  Enum['debian', 'arch'] $os = $template_name.split('-')[0],
  Optional[String] $version = undef,
  String $puppet_server = $nspawn::puppet_server,
  String $template_dir = $nspawn::template_dir,
) {

  $template = "${template_name}.base"
  $root = "${template_dir}/${template}"

  case $os {
    'debian': {
      $real_version = if $version != undef {
        $version
      } else {
        # Oout of bounds indexing gives 'undef'
        $template_name.split('-')[1]
      }
      nspawn::os::debian { $template:
        os_version   => $real_version,
        template_dir => $template_dir,
        before       => Nspawn::Template_final[$template],
      }
    }
    'arch': {
      nspawn::os::arch { $template:
        template_dir => $template_dir,
        before       => Nspawn::Template_final[$template],
      }
    }
  }

  nspawn::template_final { $template:
    root          => $root,
    puppet_server => $puppet_server,
  }

}