var containers []*kubecontainer.Container
	fillCidSet := func(cs []*kubecontainer.Container) {
		for _, c := range cs {
			cid := c.ID.ID
			if cidSet.Has(cid) {
				continue
			}
			cidSet.Insert(cid)
			containers = append(containers, c)
		}
	}

	for _, p := range pods {
		if p == nil {
			continue
		}
		fillCidSet(p.Containers)
		// Update sandboxes as containers