code: func (hm *hostportManager) syncIPTables(lines []byte) error {
  	klog.V(3).Infof("Restoring iptables rules: %s", lines)
  	err := hm.iptables.RestoreAll(lines, utiliptables.NoFlushTables, utiliptables.RestoreCounters)
  	if err != nil {
  		return fmt.Errorf("Failed to execute iptables-restore: %v", err)
  	}
  	return nil
  }
docs: // syncIPTables executes iptables-restore with given lines