From e5b8b12ac9ae24890368ff3e66bf0b6096fdfe78 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B8rn=20Forsman?= <bjorn.forsman@gmail.com>
Date: Mon, 11 Sep 2023 17:11:49 +0200
Subject: [PATCH] nixos/coredns: add extraArgs option

---
 nixos/modules/services/networking/coredns.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/networking/coredns.nix b/nixos/modules/services/networking/coredns.nix
index f928cdf96143..f1fe7b2f1241 100644
--- a/nixos/modules/services/networking/coredns.nix
+++ b/nixos/modules/services/networking/coredns.nix
@@ -29,6 +29,13 @@ in {
       type = types.package;
       description = lib.mdDoc "Coredns package to use.";
     };
+
+    extraArgs = mkOption {
+      default = [];
+      example = [ "-dns.port=53" ];
+      type = types.listOf types.str;
+      description = lib.mdDoc "Extra arguments to pass to coredns.";
+    };
   };
 
   config = mkIf cfg.enable {
@@ -44,7 +51,7 @@ in {
         AmbientCapabilities = "cap_net_bind_service";
         NoNewPrivileges = true;
         DynamicUser = true;
-        ExecStart = "${getBin cfg.package}/bin/coredns -conf=${configFile}";
+        ExecStart = "${getBin cfg.package}/bin/coredns -conf=${configFile} ${lib.escapeShellArgs cfg.extraArgs}";
         ExecReload = "${pkgs.coreutils}/bin/kill -SIGUSR1 $MAINPID";
         Restart = "on-failure";
       };