// current node and fulfills related criteria.
func (p *Plugin) admitPod(nodeName string, a admission.Attributes) error {
	switch a.GetOperation() {
	case admission.Create:
		return p.admitPodCreate(nodeName, a)

	case admission.Delete:
		// get the existing pod
		existingPod, err := p.podsGetter.Pods(a.GetNamespace()).Get(a.GetName())
		if apierrors.IsNotFound(err) {
			return err
		}