7 files changed, 16 insertions, 0 deletions
diff --git a/krebs/3modules/brockman.nix b/krebs/3modules/brockman.nix
index 7a78880ea..8427ca50b 100644
--- a/krebs/3modules/brockman.nix
+++ b/krebs/3modules/brockman.nix
@@ -11,10 +11,12 @@ in {
   config = mkIf cfg.enable {
     users.extraUsers.brockman = {
       home = "/var/lib/brockman";
+      group = "brockman";
       createHome = true;
       isSystemUser = true;
       uid = genid_uint31 "brockman";
     };
+    users.groups.brockman = {};
 
     systemd.services.brockman = {
       description = "RSS to IRC broadcaster";
diff --git a/krebs/3modules/buildbot/master.nix b/krebs/3modules/buildbot/master.nix
index e55bd95ea..c30f31e31 100644
--- a/krebs/3modules/buildbot/master.nix
+++ b/krebs/3modules/buildbot/master.nix
@@ -319,6 +319,7 @@ let
 
     users.extraUsers.buildbotMaster = {
       uid = genid "buildbotMaster";
+      group = "buildbotMaster";
       description = "Buildbot Master";
       home = cfg.workDir;
       createHome = false;
diff --git a/krebs/3modules/buildbot/slave.nix b/krebs/3modules/buildbot/slave.nix
index d877b9911..f97b50def 100644
--- a/krebs/3modules/buildbot/slave.nix
+++ b/krebs/3modules/buildbot/slave.nix
@@ -128,6 +128,7 @@ let
 
     users.extraUsers.buildbotSlave = {
       uid = genid "buildbotSlave";
+      group = "buildbotSlave";
       description = "Buildbot Slave";
       home = cfg.workDir;
       createHome = false;
diff --git a/krebs/3modules/github-hosts-sync.nix b/krebs/3modules/github-hosts-sync.nix
index 9421576df..71eed6c69 100644
--- a/krebs/3modules/github-hosts-sync.nix
+++ b/krebs/3modules/github-hosts-sync.nix
@@ -66,11 +66,14 @@ let
 
     users.users.${user.name} = {
       inherit (user) uid;
+      group = user.name;
       home = cfg.dataDir;
       isSystemUser = true;
     };
   };
 
+  users.groups.${user.name} = {};
+
   user = rec {
     mail = "${name}@${config.krebs.build.host.name}";
     name = "github-hosts-sync";
diff --git a/krebs/3modules/htgen.nix b/krebs/3modules/htgen.nix
index 517dad76f..4221703ec 100644
--- a/krebs/3modules/htgen.nix
+++ b/krebs/3modules/htgen.nix
@@ -69,10 +69,13 @@ let
     users.users = mapAttrs' (name: htgen:
       nameValuePair htgen.user.name {
         inherit (htgen.user) home name uid;
+        group = htgen.user.name;
         createHome = true;
         isSystemUser = true;
       }
     ) cfg;
 
+    users.groups = mapAttrs (_: _: {}) cfg;
+
   };
 in out
diff --git a/krebs/3modules/realwallpaper.nix b/krebs/3modules/realwallpaper.nix
index 1fa6012cf..167afed2c 100644
--- a/krebs/3modules/realwallpaper.nix
+++ b/krebs/3modules/realwallpaper.nix
@@ -59,10 +59,13 @@ let
 
     users.extraUsers.realwallpaper = {
       uid = genid "realwallpaper";
+      group = "realwallpaper";
       home = cfg.workingDir;
       createHome = true;
       isSystemUser = true;
     };
+
+    users.groups.realwallpaper = {};
   };
 
 in
diff --git a/krebs/3modules/tinc_graphs.nix b/krebs/3modules/tinc_graphs.nix
index 7a414e6e3..733db69ca 100644
--- a/krebs/3modules/tinc_graphs.nix
+++ b/krebs/3modules/tinc_graphs.nix
@@ -128,9 +128,12 @@ let
 
     users.extraUsers.tinc_graphs = {
       uid = genid_uint31 "tinc_graphs";
+      group = "tinc_graphs";
       home = "/var/spool/tinc_graphs";
       isSystemUser = true;
     };
+    users.groups.tinc_graphs = {};
+
     services.nginx = mkIf cfg.nginx.enable {
       enable = mkDefault true;
       virtualHosts = {