def _create_network_doscript(self, network_file_path):
        """doscript: contains a invokeScript.sh which will do the special work

        The network.doscript contains network configuration files and it will
        be used by zvmguestconfigure to configure zLinux os network when it
        starts up
        """
        # Generate the tar package for punch
        LOG.debug('Creating network doscript in the folder %s'
                  % network_file_path)
        network_doscript = os.path.join(network_file_path, 'network.doscript')
        tar = tarfile.open(network_doscript, "w")
        for file in os.listdir(network_file_path):
            file_name = os.path.join(network_file_path, file)
            tar.add(file_name, arcname=file)
        tar.close()
        return network_doscript