From bd0364221642b62e2e7cdbcedda5cf013fd8bc88 Mon Sep 17 00:00:00 2001
From: Mohammad Rafiq <rafiq@rrv.sh>
Date: Thu, 12 Jun 2025 13:53:25 +0800
Subject: [PATCH] feat(postgresql): persist pgsql data directory

---
 modules/nixos/server/databases/default.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/modules/nixos/server/databases/default.nix b/modules/nixos/server/databases/default.nix
index d060cd9..7008374 100644
--- a/modules/nixos/server/databases/default.nix
+++ b/modules/nixos/server/databases/default.nix
@@ -26,10 +26,17 @@ in
   config = lib.mkMerge [
     (lib.mkIf cfg.postgresql.enable {
       networking.firewall.allowedTCPPorts = lib.singleton cfg.postgresql.port;
+      environment.persistence."/persist".directories = [
+        {
+          directory = builtins.toString config.services.postgresql.dataDir;
+          user = "postgres";
+          group = "postgres";
+        }
+      ];
       services.postgresql = {
         enable = true;
         enableTCPIP = true;
-        inherit (cfg.postgresql) port;
+        settings = { inherit (cfg.postgresql) port; };
         authentication = lib.mkOverride 10 ''
           #type database DBuser auth-method
           local all all trust