with import <nixpkgs> {};
let
  etcdNodes = {
    k2-0 = "10.1.8.60";
    k2-1 = "10.1.8.61";
    k2-2 = "10.1.8.62";
  };

  etcdCluster = {
    enable = true;
    existing = true;
    nodes = etcdNodes;
  };

  master = {
    features.k8s = {
      host.name = "k2-0";
      host.address = "10.1.8.60";
      master.enable = true;
      nodes = nodes;
      inherit etcdCluster;
    };
    fileSystems = {
      "/vol/local-storage/vol1" = {
        device = "/vol/vol1";
        options = [ "bind" ];
      };
    };
    services.kubernetes.kubelet.taints.unschedulable = {
      key = "node.kubernetes.io/unschedulable";
      value = "true";
      effect = "NoSchedule";
    };
    imports = [ ./cluster.nix ./hw/k2-0.nix ];
  };

  nodes = [
    { name = "k2-1"; address = "10.1.8.61"; }
    { name = "k2-2"; address = "10.1.8.62"; }
    { name = "k2-3"; address = "10.1.8.63"; }
    { name = "k2-4"; address = "10.1.8.64"; }
    { name = "k2-5"; address = "10.1.8.65"; }
    { name = "k2-6"; address = "10.1.8.66"; }
  ];

  mkNode = x: {
    "${x.name}" =
    lib.mkMerge [
      {
        features.k8s.host = x;
      }
      (if builtins.hasAttr x.name etcdNodes then
        {
          features.k8s = { inherit etcdCluster; };
        }
        else {})
      (if x.name == "k2-6" then
        {
          services.kubernetes.kubelet.taints.sonarqube = {
            key = "reserved";
            value = "sonarqube";
            effect = "NoSchedule";
          };
        }
      else {})
    ]
    // { imports = [ ./cluster.nix  (./hw + "/${x.name}.nix") ]; };
  };
in
  builtins.foldl' (a: x: a // mkNode x) {
    "${master.features.k8s.host.name}" = master;
  } nodes