code: func (imageState *ImageState) UpdateContainerReference(container *apicontainer.Container) {
  	imageState.lock.Lock()
  	defer imageState.lock.Unlock()
  	seelog.Infof("Updating container reference %v in Image State - %v", container.Name, imageState.Image.ImageID)
  	imageState.Containers = append(imageState.Containers, container)
  }
docs: // UpdateContainerReference updates container reference in image state