log.Warnf("unable to get node %q for pod %q/%q", pod.Spec.NodeName, pod.Namespace, pod.Name)
		}
		return ""
	}

	region := getLabelValue(node.ObjectMeta, NodeRegionLabelGA, NodeRegionLabel)
	zone := getLabelValue(node.ObjectMeta, NodeZoneLabelGA, NodeZoneLabel)
	subzone := getLabelValue(node.ObjectMeta, label.TopologySubzone.Name, "")

	if region == "" && zone == "" && subzone == "" {
		return ""
	}