FWIW, the REST api does support it, so you could add a mode=background
option to lxc exec to do this.

Quoting Nicola Volpini ([email protected]):
> On 01/29/2016 07:24 AM, Serge Hallyn wrote:
> > Hm, well at least
> >
> > nohup lxc exec container -- sleep 2h &
> >
> > works for me.  I would have expected --mode=non-interactive to
> > work, but it doesn't.
> 
> I was wondering the very same thing yesterday evening.
> I noticed the non-interactive mode actually does something different: if
> you ctrl-c, the stdout output will stop but the command will keep
> running inside the container. The command dies on ctrl-c if you use the
> default mode.
> Now, if only all commands had a "silent" or "quiet" mode... I'm using
> this to generate a dhparams file via openssl and there's no "silent" mode.
> 
> --
> 
> 
> Nicola Volpini
> Infrastructure Operations Engineer
> 
> 
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