From 4f10f5d413149feef8c17628f9d267709832dd31 Mon Sep 17 00:00:00 2001
From: Glen Huang <me@glenhuang.com>
Date: Mon, 22 Dec 2025 14:06:57 +0800
Subject: [PATCH] nixos/nginx: not using reuseport for unix domain listens

---
 nixos/modules/services/web-servers/nginx/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/services/web-servers/nginx/default.nix b/nixos/modules/services/web-servers/nginx/default.nix
index e557ee92f7a7..2ee79440d6d6 100644
--- a/nixos/modules/services/web-servers/nginx/default.nix
+++ b/nixos/modules/services/web-servers/nginx/default.nix
@@ -385,7 +385,7 @@ let
             "
             listen ${addr}${optionalString (port != null) ":${toString port}"} quic "
             + optionalString vhost.default "default_server "
-            + optionalString vhost.reuseport "reuseport "
+            + optionalString (vhost.reuseport && !(lib.hasPrefix "unix:" addr)) "reuseport "
             + optionalString (extraParameters != [ ]) (
               concatStringsSep " " (
                 let
@@ -411,7 +411,7 @@ let
           + optionalString (ssl && vhost.http2 && oldHTTP2) "http2 "
           + optionalString ssl "ssl "
           + optionalString vhost.default "default_server "
-          + optionalString vhost.reuseport "reuseport "
+          + optionalString (vhost.reuseport && !(lib.hasPrefix "unix:" addr)) "reuseport "
           + optionalString proxyProtocol "proxy_protocol "
           + optionalString (extraParameters != [ ]) (concatStringsSep " " extraParameters)
           + ";";