Add two new nodes to k2, taint master node

clusters/k2/k2.nix

@@ -25,8 +25,7 @@ let
   mkNode = x: {
     "${x.name}" = { config, pkgs, ... }: {
       deployment.tags = [ "node" ];
-      node.name = x.name;
-      node.address = x.address;
+      node = x;
       imports = [ ./cluster.nix  (./hw + "/${x.name}.nix") ];
     };
   };