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Re: Services and packages in GuixSD
From: |
Ludovic Courtès |
Subject: |
Re: Services and packages in GuixSD |
Date: |
Tue, 25 Aug 2015 15:45:41 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Andy Wingo <address@hidden> skribis:
> For example this is my current services definition:
>
> (services
> (let ((motd (text-file "motd" "
> This is the GNU operating system, welcome!\n\n")))
> (list (console-font-service "tty1")
> (console-font-service "tty2")
> (console-font-service "tty3")
> (console-font-service "tty4")
> (console-font-service "tty5")
> (console-font-service "tty6")
>
> (mingetty-service "tty1" #:motd motd)
> (mingetty-service "tty2" #:motd motd)
> (mingetty-service "tty3" #:motd motd)
> (mingetty-service "tty4" #:motd motd)
> (mingetty-service "tty5" #:motd motd)
> (mingetty-service "tty6" #:motd motd)
> (static-networking-service
> "lo" "127.0.0.1" #:provision '(loopback))
> (syslog-service)
> (guix-service)
> (nscd-service #:name-services (list nss-mdns))
>
> (slim-service)
> (lsh-service)
> (wicd-service)
> (avahi-service)
> (dbus-service
> (list avahi wicd upower colord geoclue polkit))
> (upower-service)
> ;; FIXME: Can be bus-activated; just need to make the config
> ;; and the user.
> (geoclue-service)
> ;; FIXME: Doesn't need to be run at startup; can be activated
> ;; via dbus. However we do it here in order to create
> ;; /var/lib/colord.
> (colord-service)
> ;; FIXME: Can be bus-activated; just need to make the user.
> (polkit-service)
> ;; The LVM2 rules are needed as soon as LVM2 or the
> ;; device-mapper is used, so enable them by default. The FUSE
> ;; and ALSA rules are less critical, but handy.
> (udev-service
> #:rules (list lvm2 fuse alsa-utils upower colord)))))
>
> I can't switch to use %base-services or %desktop-services because of the
> udev-service and dbus-service configurations. That's the bug I'm trying
> to solve here.
You can but it’s inconvenient: You could use a trick similar to the
‘%my-base-services’ example given at
https://www.gnu.org/software/guix/manual/html_node/Name-Service-Switch.html
I think we should probably change service procedures to return
first-class objects rather than monadic values (by defining a gexp
expander). That would make such customization easier.
Additionally, we should arrange so we don’t have to define dmd services
do D-Bus services, because the system bus already takes care of them.
Presumably that means that we need a <dbus-service> type, which would
encompass a package (e.g., GeoClue) and its associated config (e.g., a
record or a file-like object.)
WDYT?
Thanks,
Ludo’.
Re: Services and packages in GuixSD,
Ludovic Courtès <=