return r < '0' || r > '9'
}

func (p *PodNetnsProcFinder) FindNetnsForPods(pods map[types.UID]*corev1.Pod) (PodToNetns, error) {
	/*
		for each process, find its netns inode,
		if we already seen the inode, skip it
		if we haven't seen the inode, check the process cgroup and see if we
		can extract a pod uid from it.
		if we can, open the netns, and save a map of uid->netns-fd
	*/

	podUIDNetns := make(PodToNetns)