cidrSetUsage.WithLabelValues(s.label).Set(float64(s.allocatedCIDRs) / float64(s.maxCIDRs))

	return s.indexToCIDRBlock(candidate), nil
}

func (s *CidrSet) getBeginningAndEndIndices(cidr *net.IPNet) (begin, end int, err error) {
	if cidr == nil {
		return -1, -1, fmt.Errorf("error getting indices for cluster cidr %v, cidr is nil", s.clusterCIDR)
	}
	begin, end = 0, s.maxCIDRs-1