From 417175096aef38c6a72acbbcfdba636c723ab79e Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Fri, 25 Jul 2014 00:15:46 +0200
Subject: services: Use system groups where applicable.

* gnu/services/avahi.scm (avahi-service): Add 'system?' field to
  'user-group' form.
* gnu/services/base.scm (guix-service): Likewise.
* gnu/services/dbus.scm (dbus-service): Likewise.
* gnu/services/networking.scm (tor-service): Likewise.
---
 gnu/services/avahi.scm      | 3 ++-
 gnu/services/base.scm       | 1 +
 gnu/services/dbus.scm       | 3 ++-
 gnu/services/networking.scm | 3 ++-
 4 files changed, 7 insertions(+), 3 deletions(-)

(limited to 'gnu')

diff --git a/gnu/services/avahi.scm b/gnu/services/avahi.scm
index e8da6be5f5..48a2c75927 100644
--- a/gnu/services/avahi.scm
+++ b/gnu/services/avahi.scm
@@ -96,7 +96,8 @@ sockets."
                     (mkdir-p "/var/run/avahi-daemon")))
 
       (user-groups (list (user-group
-                          (name "avahi"))))
+                          (name "avahi")
+                          (system? #t))))
       (user-accounts (list (user-account
                             (name "avahi")
                             (group "avahi")
diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 342b3c1488..e1d247e8d3 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -472,6 +472,7 @@ passed to @command{guix-daemon}."
              (user-accounts accounts)
              (user-groups (list (user-group
                                  (name builder-group)
+                                 (system? #t)
 
                                  ;; Use a fixed GID so that we can create the
                                  ;; store with the right owner.
diff --git a/gnu/services/dbus.scm b/gnu/services/dbus.scm
index 6076317ee5..5da7f14605 100644
--- a/gnu/services/dbus.scm
+++ b/gnu/services/dbus.scm
@@ -86,7 +86,8 @@ and policy files.  For example, to allow avahi-daemon to use the system bus,
                       (string-append "--config-file=" #$conf "/system.conf"))))
       (stop #~(make-kill-destructor))
       (user-groups (list (user-group
-                          (name "messagebus"))))
+                          (name "messagebus")
+                          (system? #t))))
       (user-accounts (list (user-account
                             (name "messagebus")
                             (group "messagebus")
diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm
index 502b0d85f1..6a7d194659 100644
--- a/gnu/services/networking.scm
+++ b/gnu/services/networking.scm
@@ -107,7 +107,8 @@ policy) as the @code{tor} unprivileged user."
       (stop #~(make-kill-destructor))
 
       (user-groups   (list (user-group
-                            (name "tor"))))
+                            (name "tor")
+                            (system? #t))))
       (user-accounts (list (user-account
                             (name "tor")
                             (group "tor")
-- 
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