From 482619dac70c36b0876223d95daf5a8ef616c0fb Mon Sep 17 00:00:00 2001
From: Matthieu Coudron <886074+teto@users.noreply.github.com>
Date: Thu, 17 Aug 2023 19:19:54 +0200
Subject: [PATCH] services.postgres: move the generated statement at the top of
 the file

---
 nixos/modules/services/databases/postgresql.nix | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/nixos/modules/services/databases/postgresql.nix b/nixos/modules/services/databases/postgresql.nix
index 0acaf0fd00a..50d0709bcd8 100644
--- a/nixos/modules/services/databases/postgresql.nix
+++ b/nixos/modules/services/databases/postgresql.nix
@@ -464,13 +464,16 @@ in
 
     services.postgresql.dataDir = mkDefault "/var/lib/postgresql/${cfg.package.psqlSchema}";
 
-    services.postgresql.authentication = mkAfter
+    services.postgresql.authentication = mkMerge [
+      (mkBefore "# Generated file; do not edit!")
+      (mkAfter
       ''
-        # Generated file; do not edit!
+        # default value of services.postgresql.authentication
         local all all              peer
         host  all all 127.0.0.1/32 md5
         host  all all ::1/128      md5
-      '';
+      '')
+    ];
 
     users.users.postgres =
       { name = "postgres";