From d72f89a8fc8af8239575ca417e01deeef89f1a1e Mon Sep 17 00:00:00 2001
From: Kai Wohlfahrt <kai.wohlfahrt@gmail.com>
Date: Sat, 4 Jun 2022 19:22:05 +0100
Subject: [PATCH] openldap: Allow notify outside of main thread

This fixes a bug I observed in deployment on a RPi, but not able to
reproduce in tests.
---
 nixos/modules/services/databases/openldap.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nixos/modules/services/databases/openldap.nix b/nixos/modules/services/databases/openldap.nix
index bba6007beb22..97fd2393128b 100644
--- a/nixos/modules/services/databases/openldap.nix
+++ b/nixos/modules/services/databases/openldap.nix
@@ -269,6 +269,9 @@ in {
           "-h" (lib.concatStringsSep " " cfg.urlList)
         ]);
         Type = "notify";
+        # Fixes an error where openldap attempts to notify from a thread
+        # outside the main process:
+        #   Got notification message from PID 6378, but reception only permitted for main PID 6377
         NotifyAccess = "all";
         PIDFile = cfg.settings.attrs.olcPidFile;
       };