Default grou membership for new users

[Brendan Jones]

On 12/05/2012 04:31 PM, Matthew Miller wrote:
> On Wed, Dec 05, 2012 at 03:55:17PM +0100, Christoph Wickert wrote:
>> I am looking for a way how to add new users to a certain group upon
>> creation. Do we have such a mechanism?
> [...]
>> /etc/default/useradd only is for useradd and can set a default group,
>> but no additional default groups.
>
> I was thinking one could extend shadow-utils so that supplementary groups
> are read from that file, but the problem is that you don't _really_ want the
> group added to every new user, just to actual human users, and figuring that
> out (even by something simple like "when UID > n") adds a layer of
> complication and fiddlyness that's probably not welcome.
>
>
>> The spin owner had a dirty hack that modified
>> /usr/share/firstboot/modules/create_user.py, but as the spins wrangler I
>> told him  this is a no-go.
>
> What about dropping a new module for audio configuration into firstboot?
>
>
How would this work? (apologies if I don't know enough about firstboot 
here). I was thinking of parsing a simple parameter from the config file.