From mboxrd@z Thu Jan  1 00:00:00 1970
From: ng0 <contact.ng0@cryptolab.net>
Subject: Re: Services can now have a default value
Date: Wed, 19 Apr 2017 23:22:49 +0000
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To: Ricardo Wurmus <rekado@elephly.net>
Cc: guix-devel <guix-devel@gnu.org>

Ricardo Wurmus transcribed 0.9K bytes:
>=20
> ng0 <contact.ng0@cryptolab.net> writes:
>=20
> > Before I lock myself out, this is the definition for defaults.
> > So:
> >  (service openssh-service-type
> >           (openssh-configuration
> >             (port-number 12121)))
> >
> > becomes:
> >   (service openssh-service-type
> >           (port-number 12121))
> >
> > or is this just a definition for defaults and not the configuration, =
and
> > when the configuration is specified it is still like before this comm=
it?
>=20
> The =E2=80=9Copenssh-service-type=E2=80=9D has a default value
> =E2=80=9C(openssh-configuration)=E2=80=9D.  If you want to override par=
ts of the default
> configuration you can use the =E2=80=9Cmodify-services=E2=80=9D syntax.=
  Your second
> snippet is incorrect, because =E2=80=9Cservice=E2=80=9D expects a type =
and a
> configuration value, but you gave it a type and =E2=80=9C(port-number 1=
2121)=E2=80=9D,
> which is not a valid configuration.
>=20
> --=20
> Ricardo
>=20
> GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
> https://elephly.net
>=20

Because I still don't think modify-services is documented well enough
and I have only one case where it's working for me, I assume:

As an example,
                   (service openssh-service-type
                            (openssh-configuration
                             (permit-root-login #t)))

Would still work. If it doesn't, I know there is no lint checking for ser=
vices
in the system config.
--=20
PGP and more: https://people.pragmatique.xyz/ng0/