From 2d0b34aa1cb36f0af8479602ae149c59e4f0fbf3 Mon Sep 17 00:00:00 2001
From: Michael Fellinger <michael.fellinger@iohk.io>
Date: Wed, 9 Oct 2019 13:03:06 +0200
Subject: [PATCH] nginx: add map_hash_*_size options

---
 .../services/web-servers/nginx/default.nix    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/nixos/modules/services/web-servers/nginx/default.nix b/nixos/modules/services/web-servers/nginx/default.nix
index e597f34700a..9d7780137aa 100644
--- a/nixos/modules/services/web-servers/nginx/default.nix
+++ b/nixos/modules/services/web-servers/nginx/default.nix
@@ -119,6 +119,14 @@ let
         include ${recommendedProxyConfig};
       ''}
 
+      ${optionalString (cfg.mapHashBucketSize != null) ''
+        map_hash_bucket_size ${toString cfg.mapHashBucketSize};
+      ''}
+
+      ${optionalString (cfg.mapHashMaxSize != null) ''
+        map_hash_max_size ${toString cfg.mapHashMaxSize};
+      ''}
+
       # $connection_upgrade is used for websocket proxying
       map $http_upgrade $connection_upgrade {
           default upgrade;
@@ -507,6 +515,23 @@ in
         '';
       };
 
+      mapHashBucketSize = mkOption {
+        type = types.nullOr (types.enum [ 32 64 128 ]);
+        default = null;
+        description = ''
+            Sets the bucket size for the map variables hash tables. Default
+            value depends on the processor’s cache line size.
+          '';
+      };
+
+      mapHashMaxSize = mkOption {
+        type = types.nullOr types.ints.positive;
+        default = null;
+        description = ''
+            Sets the maximum size of the map variables hash tables.
+          '';
+      };
+
       resolver = mkOption {
         type = types.submodule {
           options = {