var out []types.NamespacedName
	for key := range old {
		if _, ok := curr[key]; !ok {
			out = append(out, key)
		}
	}

	return out
}

func isDNSTypeServiceEntry(se *networking.ServiceEntry) bool {
	if se == nil {
		return false
	}
	return se.Resolution == networking.ServiceEntry_DNS || se.Resolution == networking.ServiceEntry_DNS_ROUND_ROBIN
}