Merge pull request #29171 from vaibhavsagar/znc-open-firewall

znc: open firewall with configured port

nixos/modules/services/networking/znc.nix

@@ -276,6 +276,14 @@ in
           '';
         };
 
+        openFirewall = mkOption {
+          type = types.bool;
+          default = false;
+          description = ''
+            Whether to open ports in the firewall for ZNC.
+          '';
+        };
+
         passBlock = mkOption {
           example = defaultPassBlock;
           type = types.string;
@@ -350,6 +358,10 @@ in
 
   config = mkIf cfg.enable {
 
+    networking.firewall = mkIf cfg.openFirewall {
+      allowedTCPPorts = [ cfg.port ];
+    };
+
     systemd.services.znc = {
       description = "ZNC Server";
       wantedBy = [ "multi-user.target" ];