func hostPortGroupFromName(client *govmomi.Client, ns *object.HostNetworkSystem, name string) (*types.HostPortGroup, error) {
	var mns mo.HostNetworkSystem
	pc := client.PropertyCollector()
	ctx, cancel := context.WithTimeout(context.Background(), defaultAPITimeout)
	defer cancel()
	if err := pc.RetrieveOne(ctx, ns.Reference(), []string{"networkInfo.portgroup"}, &mns); err != nil {
		return nil, fmt.Errorf("error fetching host network properties: %s", err)
	}

	for _, pg := range mns.NetworkInfo.Portgroup {
		if pg.Spec.Name == name {
			return &pg, nil
		}
	}

	return nil, fmt.Errorf("could not find port group %s", name)
}
func hostPortGroupFromName(client *govmomi.Client, ns *object.HostNetworkSystem, name string) (*types.HostPortGroup, error) {
	var mns mo.HostNetworkSystem
	pc := client.PropertyCollector()
	ctx, cancel := context.WithTimeout(context.Background(), defaultAPITimeout)
	defer cancel()
	if err := pc.RetrieveOne(ctx, ns.Reference(), []string{"networkInfo.portgroup"}, &mns); err != nil {
		return nil, fmt.Errorf("error fetching host network properties: %s", err)
	}

	for _, pg := range mns.NetworkInfo.Portgroup {
		if pg.Spec.Name == name {
			return &pg, nil
		}
	}

	return nil, fmt.Errorf("could not find port group %s", name)
}
// hostPortGroupFromName locates a port group on the supplied HostNetworkSystem
// by name.