The output format (eg. C<qcow2>).
+=item C<$guest_arch>
+
+The guest architecture (eg. "x86_64"). This is the output of the
+C<guest-arch> probe. If the template doesn't provide that, it
+defaults to the cluster node's host architecture.
+
=item C<$name>
The hostname.
The template MAY print the disk type supported by this guest. Possible
values include C<ide>, C<virtio>, C<virtio-scsi>.
+=item guest-arch
+
+The template MAY print the guest architecture.
+
+If supplied, this acts as a hint when generating the XML in the C<mclu
+boot> subcommand. The default is to assume the guest architecture is
+the same as the cluster host on which the guest runs.
+
=item minimum-memory
The template MAY print the minimum memory (RAM) required by this