{ stdenv,
  pkgs,
  images,
  registry,
  tag
}:
let
  myImages = stdenv.mkDerivation {
    name = "images";
    builder = builtins.toFile "builder.sh" ''
      source $stdenv/setup

      echo "Copying images"
      mkdir -p $out/var/lib/rancher/k3s/agent/images/
      cp -r ${map (x:  "${x}") images} $out
      echo "Uncompress them..."
      ${pkgs.pigz}/bin/pigz -d $out/var/lib/rancher/k3s/agent/images/*
      echo "Copy done!"
    '';
  };
in
  pkgs.dockerTools.buildImage {
    name = "${registry}/myK3s";
    inherit tag;
    #created = "now";
    fromImage = pkgs.dockerTools.pullImage {
      imageName = "rancher/k3s";
      imageDigest = "sha256:b770dbd95bd75d9b73404ac7753a85b6ac0db0d1df984d9cb41bd1bf228156e8";
      sha256 = "4bc4889bbbe83dd035ad11379bb6948093f790a42d5b6882c62c4a3e406b5d43";
      finalImageTag = "v0.5.0";
    };

    contents = [ myImages ];

  config.Cmd = [ "/bin/k3s" ];
  config.Env = [
    "PATH=/bin:/bin/aux"
  ];
}