hw accell and device mapper container for dev/dri usage in swarm

docker.nix

@@ -5,6 +5,9 @@
       enable = true;
       dates = "daily";
     };
+    daemon.settings = {
+      data-root = "/data/docker";
+    };
     liveRestore = false;
     package = pkgs.docker_27;
   };