feat(storage01): Update zpool configuration

Use only one pool for slow storage
Setup garage to use the available pools

machines/storage01/_hardware-configuration.nix

@@ -1,7 +1,7 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, pkgs, modulesPath, ... }:
+{ config, lib, modulesPath, ... }:
 
 {
   imports =
@@ -14,7 +14,7 @@
   boot.kernelModules = [ "kvm-intel" ];
   boot.supportedFilesystems = [ "zfs" ];
   boot.zfs.forceImportRoot = false;
-  boot.zfs.extraPools = [ "fast01" "medium01" "work01" "small01" ];
+  boot.zfs.extraPools = [ "fast01" "work01" ];
   boot.extraModulePackages = [ ];
 
   fileSystems."/" =

machines/storage01/garage.nix

@@ -3,11 +3,16 @@ _:
 let
   host = "s3.dgnum.eu";
   webHost = "cdn.dgnum.eu";
+
+  data_dir = "/data/slow/garage/data";
+  metadata_dir = "/data/fast/garage/meta";
 in {
   services.garage = {
     enable = true;
 
     settings = {
+      inherit data_dir metadata_dir;
+
       replication_mode = "none";
       compression_level = 7;
 
@@ -37,6 +42,17 @@ in {
     };
   };
 
+  systemd.services.garage.serviceConfig = {
+    User = "garage";
+    ReadWriteDirectories = [ data_dir metadata_dir ];
+  };
+
+  users.users.garage = {
+    isSystemUser = true;
+    group = "garage";
+  };
+  users.groups.garage = { };
+
   services.nginx.virtualHosts = {
     ${host} = {
       enableACME = true;