From d93434458bc85a6ceed303f6b0c58fb3f99d6e29 Mon Sep 17 00:00:00 2001
From: Stijn DW <stekke@airmail.cc>
Date: Sat, 14 Nov 2020 17:21:56 +0100
Subject: [PATCH] nixos/factorio: add openFirewall option

---
 nixos/modules/services/games/factorio.nix | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/nixos/modules/services/games/factorio.nix b/nixos/modules/services/games/factorio.nix
index 4b2e1a3c07f06d..7962a4c3baf98e 100644
--- a/nixos/modules/services/games/factorio.nix
+++ b/nixos/modules/services/games/factorio.nix
@@ -49,8 +49,13 @@ in
         default = 34197;
         description = ''
           The port to which the service should bind.
-
-          This option will also open up the UDP port in the firewall configuration.
+        '';
+      };
+      openFirewall = mkOption {
+        type = types.bool;
+        default = true;
+        description = ''
+          Whether to automatically open the specified UDP port in the firewall.
         '';
       };
       saveName = mkOption {
@@ -237,6 +242,6 @@ in
       };
     };
 
-    networking.firewall.allowedUDPPorts = [ cfg.port ];
+    networking.firewall.allowedUDPPorts = if cfg.openFirewall then [ cfg.port ] else [];
   };
 }