let
  # Pin the deployment package-set to a specific version of nixpkgs
  # pkgs = import (builtins.fetchTarball {
  #   url = "https://github.com/NixOS/nixpkgs/archive/e9148dc1c30e02aae80cc52f68ceb37b772066f3.tar.gz";
  #   sha256 = "1ckzhh24mgz6jd1xhfgx0i9mijk6xjqxwsshnvq789xsavrmsc36";
  # }) {};
  pkgs = import <nixpkgs> {};

  master = {
    deployment.tags = [ "master" ];
    node.name = "k1-0";
    node.address = "10.1.30.100";
    features.k8s.master.enable = true;
    features.k8s.nodes = nodes;
    imports = [ ./cluster.nix ./hw/k1-0.nix ];
  };

  nodes = [
    { name = "k1-1"; address = "10.1.30.101"; }
    { name = "k1-2"; address = "10.1.30.102"; }
    { name = "k1-3"; address = "10.1.30.103"; }
  ];

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

in
{
  network =  {
    inherit pkgs;
    description = "k1";
    ordering = {
      tags = [ "master" "node" ];
    };
  };
} // builtins.foldl' (a: x: a // mkNode x) {
    "${master.node.name}" = master;
  } nodes