Move metrics,gitea,vaultwarden from voyager to defiant

hosts/defiant/configuration.nix

@@ -13,6 +13,9 @@
       ./services/flame.nix
       ./services/hedgedoc.nix
       ./services/pihole.nix
+      ./services/gitea.nix
+      ./services/vaultwarden.nix
+      ./services/metrics
   ];
 
   networking = {
@@ -33,6 +36,13 @@
     zfs
   ];
 
+  boot = {
+    zfs.extraPools = [ "tank" ];
+    supportedFilesystems = [ "zfs" ];
+    kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
+  };
+  services.prometheus.exporters.zfs.enable = true;
+
   virtualisation.docker.enable = true;
   virtualisation.oci-containers.backend = "docker";