// No need to return NetnsCloser here it will be closed automatically on GC.
// (it may be used in parallel by other parts of the code, so we want it to be used only when not used)
func (p *podNetnsCache) Take(uid string) Netns {
	// lock current pod map
	p.mu.Lock()
	defer p.mu.Unlock()
	if ns, ok := p.currentPodCache[uid]; ok {
		delete(p.currentPodCache, uid)
		// already in cache
		return ns.Netns
	}