Andy Smith <[email protected]> wrote:
> Hi,
> 
> On Thu, Jan 29, 2026 at 08:28:47PM +0000, Chris Green wrote:
> > So, if I understand correctly, when I do:-
> > 
> >     systemctl --user start helmlcd.service
> > 
> > Then, although it has been started by 'chris' (I'm logged in as
> > chris), only one copy of the service can be run.
> 
> Only one copy by user chris, yes. It's not a templated service. If you
> want multiple of them running as user services of chris then you'd have
> to copy the .service file to a new name, making the copy effectively a
> completely separate and different service.
> 
> As it's a user service, it's expected that a DIFFERENT user could also
> run it.
> 
> > However, when I do:-
> > 
> >     systemctl --user start [email protected]
> > 
> > it's quite possible for others to start their own copies of the
> > service, though presumably they'd have to have a copy of the service
> > file called [email protected].
> 
> As long as there is a [email protected] template file somewhere in
> systemd's search paths (for user units), then if a user does:
> 
> myusername$ systemctl --user start fblcd@foo
> 
> Then they should get their own instance of this service. It may be a
> requirement of the service that "foo" is actually the username, or it
> might not be, leaving it to just be an arbitrary instance name. As this
> is a templated user service there is in principle no reason why a single
> user can't run multiple instances of it. There might be some
> service-specific reason why each user can only run one.
> 
> The "start" command with an instance name should copy the .service file
> from the template.
> 
> > How does the second differ from simply having services called
> > chrisfblcd.service, othernamefblcd.service and so on?
> 
> There only has to be one template unit file somewhere called
> [email protected] rather than every user having to copy their own one into
> place. Also the fact that it's a template indicates that it's expected
> that multiple copies of it are in some way catered for.
> 
Thanks Andy, that's brilliant! :-)

-- 
Chris Green
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