code: func (daemon *Daemon) SetContainerConfigReferences(name string, refs []*swarmtypes.ConfigReference) error {
  	if !configsSupported() && len(refs) > 0 {
  		logrus.Warn("configs are not supported on this platform")
  		return nil
  	}
  
  	c, err := daemon.GetContainer(name)
  	if err != nil {
  		return err
  	}
  	c.ConfigReferences = append(c.ConfigReferences, refs...)
  	return nil
  }
docs: // SetContainerConfigReferences sets the container config references needed