return outCIDRs
}

// occupyServiceCIDR removes the service CIDR range from the cluster CIDR if it
// intersects.
func occupyServiceCIDR(set *cidrset.CidrSet, clusterCIDR, serviceCIDR *net.IPNet) error {
	if clusterCIDR.Contains(serviceCIDR.IP) || serviceCIDR.Contains(clusterCIDR.IP) {
		if err := set.Occupy(serviceCIDR); err != nil {
			return err
		}
	}
	return nil

	allocatorType ipam.CIDRAllocatorType) (*Controller, error) {

	if kubeClient == nil {
		return nil, fmt.Errorf("kubeClient is nil when starting Controller")
	}

	// Cloud CIDR allocator does not rely on clusterCIDR or nodeCIDRMaskSize for allocation.
	if allocatorType != ipam.CloudAllocatorType {
		if len(clusterCIDRs) == 0 {
			return nil, fmt.Errorf("Controller: Must specify --cluster-cidr if --allocate-node-cidrs is set")
		}