"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/client-go/tools/record"
	runtimeapi "k8s.io/cri-api/pkg/apis/runtime/v1"
	"k8s.io/kubernetes/pkg/apis/core/validation"
	netutils "k8s.io/utils/net"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

var (
	// testHostNameserver and testHostDomain are also being used in dns_windows_test.go.

import (
	"crypto"
	"crypto/x509"
	"fmt"
	"net"
	"os"
	"path/filepath"
	"testing"
	"time"

	"k8s.io/client-go/tools/clientcmd"
	certutil "k8s.io/client-go/util/cert"
	"k8s.io/client-go/util/keyutil"
	netutils "k8s.io/utils/net"

	kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
	kubeconfigutil "k8s.io/kubernetes/cmd/kubeadm/app/util/kubeconfig"
	"k8s.io/kubernetes/cmd/kubeadm/app/util/pkiutil"

	var providerAddress string
	for _, rs := range network.remoteSubnets {
		_, ipNet, err := netutils.ParseCIDRSloppy(rs.destinationPrefix)
		if err != nil {
			klog.ErrorS(err, "Failed to parse CIDR")
		}
		if ipNet.Contains(netutils.ParseIPSloppy(ip)) {
			providerAddress = rs.providerAddress
		}
		if ip == rs.providerAddress {
			providerAddress = rs.providerAddress
		}
	}

	"time"

	"github.com/pkg/errors"

	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/apimachinery/pkg/util/validation"
	certutil "k8s.io/client-go/util/cert"
	"k8s.io/client-go/util/keyutil"
	"k8s.io/klog/v2"
	netutils "k8s.io/utils/net"

	kubeadmapi "k8s.io/kubernetes/cmd/kubeadm/app/apis/kubeadm"
	kubeadmconstants "k8s.io/kubernetes/cmd/kubeadm/app/constants"
	kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
)

const (

	"k8s.io/client-go/informers"
	"k8s.io/client-go/kubernetes"
	restclient "k8s.io/client-go/rest"
	kubeversion "k8s.io/component-base/version"
	aggregatorscheme "k8s.io/kube-aggregator/pkg/apiserver/scheme"
	netutils "k8s.io/utils/net"

	"k8s.io/kubernetes/pkg/api/legacyscheme"
	flowcontrolv1bet3 "k8s.io/kubernetes/pkg/apis/flowcontrol/v1beta3"
	controlplaneapiserver "k8s.io/kubernetes/pkg/controlplane/apiserver"

limitations under the License.
*/

package ipam

import (
	"context"
	"fmt"
	"net"
	"time"

	v1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/util/wait"
	"k8s.io/klog/v2"
	netutils "k8s.io/utils/net"

	apierrors "k8s.io/apimachinery/pkg/api/errors"
	"k8s.io/apimachinery/pkg/types"
	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
	informers "k8s.io/client-go/informers/core/v1"

	"time"

	"github.com/pkg/errors"

	v1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/util/version"
	apimachineryversion "k8s.io/apimachinery/pkg/version"
	componentversion "k8s.io/component-base/version"
	netutils "k8s.io/utils/net"
)

const (
	// KubernetesDir is the directory Kubernetes owns for storing various configuration files
	KubernetesDir = "/etc/kubernetes"

	clientgotesting "k8s.io/client-go/testing"
	proxyconfigapi "k8s.io/kubernetes/pkg/proxy/apis/config"
	proxyutil "k8s.io/kubernetes/pkg/proxy/util"
	"k8s.io/kubernetes/test/utils/ktesting"
	netutils "k8s.io/utils/net"
	"k8s.io/utils/ptr"
)

func Test_platformApplyDefaults(t *testing.T) {
	testCases := []struct {
		name                string
		mode                proxyconfigapi.ProxyMode

	"k8s.io/kubernetes/pkg/features"
	netutils "k8s.io/utils/net"
)

const testHostname = "test-hostname"

func makeTestServiceInfo(clusterIP string, port int, protocol string, healthcheckNodePort int, svcInfoFuncs ...func(*BaseServicePortInfo)) *BaseServicePortInfo {
	bsvcPortInfo := &BaseServicePortInfo{
		clusterIP: netutils.ParseIPSloppy(clusterIP),
		port:      port,
		protocol:  v1.Protocol(protocol),

import (
	"bytes"
	"context"
	"errors"
	"fmt"
	"io"
	"net"
	"reflect"
	"strconv"
	"strings"
	"sync"
	"sync/atomic"
	"time"

	"k8s.io/klog/v2"
	utilexec "k8s.io/utils/exec"
	netutils "k8s.io/utils/net"

	v1 "k8s.io/api/core/v1"
	discovery "k8s.io/api/discovery/v1"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/sets"
	"k8s.io/apimachinery/pkg/util/version"