From 7a70f11920fac103252f666ec08916438448a8d1 Mon Sep 17 00:00:00 2001
From: Leona Maroni <dev@leona.is>
Date: Sat, 15 Aug 2026 15:31:11 +0200
Subject: [PATCH] nixos/gitlab: increase postgres  max locks per transaction

Apparently this is necessary since the PostgreSQL 17.6 update

(cherry picked from commit 917ec3b1c2817cbb949e16edda7ed0da0e2bacc6)
---
 nixos/modules/services/misc/gitlab/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/services/misc/gitlab/default.nix b/nixos/modules/services/misc/gitlab/default.nix
index 81008a92d9e0..b66cd0bd188e 100644
--- a/nixos/modules/services/misc/gitlab/default.nix
+++ b/nixos/modules/services/misc/gitlab/default.nix
@@ -1285,6 +1285,8 @@ in
     services.postgresql = optionalAttrs databaseActuallyCreateLocally {
       enable = true;
       ensureUsers = singleton { name = cfg.databaseUsername; };
+      # With the PostgreSQL update to 17.6, the default was no longer enough.
+      settings.max_locks_per_transaction = lib.mkDefault 128;
     };
 
     # Enable rotation of log files