[PATCH] Adding support for reloading configuration via systemd

[Jason A. Donenfeld]

On Fri, Jul 24, 2020 at 3:09 PM Tomcsányi, Domonkos <domi at tomcsanyi.net> wrote:
>
> On Fri, Jul 24, 2020 at 11:29 AM Jason A. Donenfeld <Jason at zx2c4.com> wrote:
> >
> > On Fri, Jul 24, 2020 at 11:25 AM Garrit Franke <garritfranke at gmail.com> wrote:
> > >
> > > On Fri, Jul 24, 2020 at 11:14:52AM +0200, Jason A. Donenfeld wrote:
> > > > On Fri, Jul 24, 2020 at 10:30 AM Tomcsanyi, Domonkos <domi at tomcsanyi.net> wrote:
> > > > >
> > > > > Signed-off-by: Domonkos P. Tomcsanyi <domi at tomcsanyi.net>
> > > > > ---
> > > > > src/systemd/wg-quick at .service | 1 +
> > > > > 1 file changed, 1 insertion(+)
> > > > >
> > > > > diff --git a/src/systemd/wg-quick at .service b/src/systemd/wg-quick at .service
> > > > > index a9cbb58..8eb040b 100644
> > > > > --- a/src/systemd/wg-quick at .service
> > > > > +++ b/src/systemd/wg-quick at .service
> > > > > @@ -15,6 +15,7 @@ Type=oneshot
> > > > > RemainAfterExit=yes
> > > > > ExecStart=/usr/bin/wg-quick up %i
> > > > > ExecStop=/usr/bin/wg-quick down %i
> > > > > +ExecReload=/bin/bash -c '/usr/bin/wg syncconf %i <(/usr/bin/wg-quick strip
> > > > > %i)'
> > > > > Environment=WG_ENDPOINT_RESOLUTION_RETRIES=infinity
> > > > >
> > > > > [Install]
> > > > > --
> > > > > 2.17.1
> > > > >
> > > > > Not the cleanest solution, but I think it might help a lot of people, so I'm
> > > > > submitting it.
> > > >
> > > > This actually doesn't seem too bad to me. Are there cleaner solutions
> > > > that I'm not thinking of that I should consider before applying this
> > > > patch?
> > >
> > > I think it doesn't get cleaner than this one-liner.
> > > Some time back I submitted a patch that added a restart command to wg-tools.
> > > We settled on the conclusion that a systemd approach would be much cleaner.
> >
> > Right, I recall this conversation, and this patch seems to be what we
> > all had in mind there. So I'm just wondering about the "not the
> > cleanest" part in the original patch -- if there are other systemd
> > tricks or something to consider.
>
>
> Thanks for the positive feedback guys. I'm not very much experienced
> with systemd and frankly this one liner was the first hit from a
> simple Google search, hence my comment about it not being the
> best/cleanest solution. It suited my needs and it worked, so I decided
> to send it in, because the functionality seemed like something other
> sysadmins would appreciate.
> If you like it and there is currently no other solution suggested by
> the list I'd be very happy and proud to have it merged :).

Great, good to know. Made some small adjustments and committed this as:
https://git.zx2c4.com/wireguard-tools/commit/?id=a66219fa107e1bf0a03ebbbc405879c1f0a826c5

Thanks for the patch!

Jason