fix postgres file existence

Author: kiriwalawren

modules/postgres.nix

@@ -25,6 +25,12 @@ in {
       dataDir = stateDir;
     };
 
+    systemd.tmpfiles.settings."10-postgresql".${stateDir}.d = {
+      user = "postgres";
+      group = "postgres";
+      mode = "0700";
+    };
+
     systemd.services.postgresql = {
       after = ["nixflix-setup-dirs.service"];
       requires = ["nixflix-setup-dirs.service"];