virtualisation/linode-image: Use system.build.image

  imports = [

    ./linode-config.nix

    ./disk-size-option.nix

    ../image/file-options.nix

    (lib.mkRenamedOptionModuleWith {

      sinceRelease = 2411;

      from = [

  };

  config = {

    system.nixos.tags = [ "linode" ];

    image.extension = "img.gz";

    system.build.image = config.system.build.linodeImage;

    system.build.linodeImage = import ../../lib/make-disk-image.nix {

      name = "linode-image";

      baseName = config.image.baseName;

      # NOTE: Linode specifically requires images to be `gzip`-ed prior to upload

      # See: https://www.linode.com/docs/products/tools/images/guides/upload-an-image/#requirements-and-considerations

      postVM = ''

        ${pkgs.gzip}/bin/gzip -${toString cfg.compressionLevel} -c -- $diskImage > \

        $out/nixos-image-${config.system.nixos.label}-${pkgs.stdenv.hostPlatform.system}.img.gz

        $out/${config.image.fileName}

        rm $diskImage

      '';

      format = "raw";