nixos/networkd-dispatcher: add warning when useNetworkd is not enabled

networkd-dispatcher is driven by systemd-networkd events, so enabling the module without `networking.useNetworkd = true` leaves configured scripts unrun with no indication of why. Warn at evaluation time to make the misconfiguration obvious. (See #538523)
2026-07-09 11:07:41 -07:00
parent 4ed1c30999
commit 4cd430ae54
1 changed files with 4 additions and 0 deletions
@@ -93,6 +93,10 @@ in

  config = mkIf cfg.enable {

+    warnings = mkIf (!config.networking.useNetworkd) [
+      "services.networkd-dispatcher will not execute any scripts unless networking.useNetworkd is enabled."
+    ];
+
    systemd = {
      packages = [ pkgs.networkd-dispatcher ];
      services.networkd-dispatcher = {