s.PrimaryIPFamily, s.NodeIPs = detectNodeIPs(ctx, rawNodeIPs, config.BindAddress)

	if len(config.NodePortAddresses) == 1 && config.NodePortAddresses[0] == kubeproxyconfig.NodePortAddressesPrimary {
		var nodePortAddresses []string
		if nodeIP := s.NodeIPs[v1.IPv4Protocol]; nodeIP != nil && !nodeIP.IsLoopback() {
			nodePortAddresses = append(nodePortAddresses, fmt.Sprintf("%s/32", nodeIP.String()))
		}

				nodePortSet = proxier.ipsetList[kubeNodePortSetSCTP]
				// Since hash ip:port is used for SCTP, all the nodeIPs to be used in the SCTP ipset entries.
				entries = []*utilipset.Entry{}
				for _, nodeIP := range nodeIPs {
					entries = append(entries, &utilipset.Entry{
						IP:       nodeIP.String(),
						Port:     svcInfo.NodePort(),
						Protocol: protocol,
						SetType:  utilipset.HashIPPort,
					})

			testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
			defer testKubelet.Cleanup()
			kl := testKubelet.kubelet
			for _, ip := range tc.nodeIPs {
				kl.nodeIPs = append(kl.nodeIPs, netutils.ParseIPSloppy(ip))
			}
			kl.nodeLister = testNodeLister{nodes: []*v1.Node{
				{
					ObjectMeta: metav1.ObjectMeta{Name: string(kl.nodeName)},
					Status: v1.NodeStatus{

* Nodes are not deleted from kubernetes anymore if node is shutdown in Openstack. ([#59931](https://github.com/kubernetes/kubernetes/pull/59931), [@zetaab](https://github.com/zetaab))
* Re-enabled nodeipam controller for external clouds. Re-enables nodeipam controller for external clouds. Also does a small refactor so that we don't need to pass in allocateNodeCidr into the controller.

func validateNodeIP(nodeIP net.IP) error {
	// Honor IP limitations set in setNodeStatus()
	if nodeIP.To4() == nil && nodeIP.To16() == nil {
		return fmt.Errorf("nodeIP must be a valid IP address")
	}
	if nodeIP.IsLoopback() {
		return fmt.Errorf("nodeIP can't be loopback address")
	}
	if nodeIP.IsMulticast() {
		return fmt.Errorf("nodeIP can't be a multicast address")
	}

func (s *ProxyServer) platformSetup(ctx context.Context) error {
	// Preserve backward-compatibility with the old secondary IP behavior
	if s.PrimaryIPFamily == v1.IPv4Protocol {
		s.NodeIPs[v1.IPv6Protocol] = net.IPv6zero
	} else {
		s.NodeIPs[v1.IPv4Protocol] = net.IPv4zero
	}
	return nil
}

// platformCheckSupported is called immediately before creating the Proxier, to check

	// It doesn't matter whether we listen on "0.0.0.0", "::", or ""; go
	// treats them all the same.
	nodeIPs := []net.IP{net.IPv4zero}

	if !nodePortAddresses.MatchAll() {
		ips, err := nodePortAddresses.GetNodeIPs(proxyutil.RealNetwork{})
		if err == nil {
			nodeIPs = ips
		} else {

		localDetectors[v1.IPv4Protocol], hostname, nodeIPs[v1.IPv4Protocol],
		recorder, healthzServer, nodePortAddresses, initOnly)
	if err != nil {
		return nil, fmt.Errorf("unable to create ipv4 proxier: %v", err)
	}

	ipv6Proxier, err := NewProxier(ctx, v1.IPv6Protocol,
		syncPeriod, minSyncPeriod, masqueradeAll, masqueradeBit,
		localDetectors[v1.IPv6Protocol], hostname, nodeIPs[v1.IPv6Protocol],

}

func TestRunningAddressesWithPod(t *testing.T) {
	syncer := makeStatusSyncer(t, "")

	address := syncer.runningAddresses()

	if len(address) != 1 || address[0] != nodeIP {
		t.Errorf("Address is not correctly set to node ip %v %v", address, nodeIP)
	}

				config.IPTables.MinSyncPeriod.Duration,
				config.IPTables.MasqueradeAll,
				*config.IPTables.LocalhostNodePorts,
				int(*config.IPTables.MasqueradeBit),
				localDetectors,
				s.Hostname,
				s.NodeIPs,
				s.Recorder,
				s.HealthzServer,
				config.NodePortAddresses,
				initOnly,
			)
		} else {