_, err := manager.detectImages(ctx, zero)
	require.NoError(t, err)
	fakeRuntime.ImageList = []container.Image{
		makeImage(0, 1024),
		makeImage(1, 2048),
	}
	_, err = manager.detectImages(ctx, time.Now())
	require.NoError(t, err)
	fakeRuntime.AllPodList = []*containertest.FakePod{}
	_, err = manager.detectImages(ctx, time.Now())
	require.NoError(t, err)

		nodeRef:       nodeRef,
		tracer:        tracer,
	}

	return im, nil
}

func (im *realImageGCManager) Start() {
	ctx := context.Background()
	go wait.Until(func() {
		_, err := im.detectImages(ctx, time.Now())
		if err != nil {
			klog.InfoS("Failed to monitor images", "err", err)
		}
	}, 5*time.Minute, wait.NeverStop)

	// Start a goroutine periodically updates image cache.