code: def upload_index_file(self, test_address, timestamp):
          
          global already_uploaded_files
          already_uploaded_files = list(set(already_uploaded_files))
          already_uploaded_files.sort()
          file_name = "%s/%s/index.html" % (test_address, timestamp)
          index = self.get_key(file_name)
          index_str = []
          for completed_file in already_uploaded_files:
              index_str.append("<a href='" + self.bucket_url + ""
                               "%s'>%s</a>" % (completed_file, completed_file))
          index.set_contents_from_string(
              "<br>".join(index_str),
              headers={"Content-Type": "text/html"})
          index.make_public()
          return "%s%s" % (self.bucket_url, file_name)
docs: Create an index.html file with links to all the log files
              that were just uploaded.