From 56126507670b5997fc7911acab9c29472a294af4 Mon Sep 17 00:00:00 2001
From: Izorkin <izorkin@elven.pw>
Date: Sat, 1 Jun 2019 17:04:21 +0300
Subject: [PATCH] nixos/nginx: add ipv6 options to resolver

---
 nixos/modules/services/web-servers/nginx/default.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/web-servers/nginx/default.nix b/nixos/modules/services/web-servers/nginx/default.nix
index c486d6c8613..d6653a65a95 100644
--- a/nixos/modules/services/web-servers/nginx/default.nix
+++ b/nixos/modules/services/web-servers/nginx/default.nix
@@ -64,7 +64,7 @@ let
       include ${cfg.package}/conf/uwsgi_params;
 
       ${optionalString (cfg.resolver.addresses != []) ''
-        resolver ${toString cfg.resolver.addresses} ${optionalString (cfg.resolver.valid != "") "valid=${cfg.resolver.valid}"};
+        resolver ${toString cfg.resolver.addresses} ${optionalString (cfg.resolver.valid != "") "valid=${cfg.resolver.valid}"} ${optionalString (!cfg.resolver.ipv6) "ipv6=off"};
       ''}
       ${upstreamConfig}
 
@@ -521,6 +521,15 @@ in
                 An optional valid parameter allows overriding it
               '';
             };
+            ipv6 = mkOption {
+              type = types.bool;
+              default = true;
+              description = ''
+                By default, nginx will look up both IPv4 and IPv6 addresses while resolving.
+                If looking up of IPv6 addresses is not desired, the ipv6=off parameter can be
+                specified.
+              '';
+            };
           };
         };
         description = ''