wynne: enable postgresql

hosts/wynne/services/apps/default.nix

@@ -1,3 +1,6 @@
 _: {
-  imports = [ ../../../shared/prometheus-exporters.nix ];
+  imports = [
+    ./postgresql.nix
+    ../../../shared/prometheus-exporters.nix
+  ];
 }

hosts/wynne/services/apps/postgresql.nix

@@ -0,0 +1,18 @@
+{ config, pkgs, ... }: {
+  services = {
+    postgresql = {
+      enable = true;
+      dataDir = "/mnt/data/postgresql/${config.services.postgresql.package.psqlSchema}";
+      authentication = pkgs.lib.mkOverride 10 ''
+        local  all  all  trust
+        host   all  all  127.0.0.1/8           trust
+        host   all  all  ::1/128               trust
+        host   all  all  10.10.10.0/24         trust
+        host   all  all  fd7c:585c:c4ae::0/64  trust
+      '';
+      ensureDatabases = [ ];
+      ensureUsers = [ ];
+    };
+  };
+  systemd.services.postgresql.unitConfig.RequiresMountsFor = [ "/mnt/data" ];
+}