It will be nice to upload a group of local files to the remote instance

  public static String prepareRemoteFileUrl(ClusterActionEvent event, String rawUrl)
    throws IOException {
    if (rawUrl != null && rawUrl.startsWith("file://")) {
      try {
        URI uri = new URI(rawUrl);
        File localFile = new File(uri);

        BlobCache cache = BlobCache.getInstance(event.getCompute(), event.getClusterSpec());
        cache.putIfAbsent(localFile);

        final String basePath = "/tmp/whirr/cache/files/";
        addStatement(event, cache.getAsSaveToStatement(basePath, uri));
        cache.removeContainer();
        return "file://" + basePath + localFile.getName();

      } catch (URISyntaxException e) {
        throw new IOException(e);
      }
    } else if(rawUrl != null && rawUrl.startsWith("remote://")) {
      return rawUrl.replaceFirst("remote://", "file://");
    }
    return rawUrl;
  }