* [Experiment Only] When using kube-up.sh on GCE, user could set env `KUBE_PROXY_DAEMONSET=true` to run kube-proxy as a DaemonSet. kube-proxy is run as static pods by default. ([#50705](https://github.com/kubernetes/kubernetes/pull/50705), [@MrHohn](https://github.com/MrHohn))

                "loadBalancingWeight": 1
            }
        ],
        "policy": {
            "overprovisioningFactor": 140
        }
    },
    {
        "clusterName": "outbound|53||kube-dns.kube-system.svc.cluster.local",
        "endpoints": [
            {
                "locality": {},
                "lbEndpoints": [
                    {
                        "endpoint": {

          istio:
            workload: istiod;istio-system;;;Kubernetes
    loadBalancingWeight: 1
    locality: {}
  policy:
    overprovisioningFactor: 140
- clusterName: outbound|53||kube-dns.kube-system.svc.cluster.local
  endpoints:
  - lbEndpoints:
    - endpoint:
        address:
          socketAddress:
            address: 10.244.0.8
            portValue: 53
        healthCheckConfig: {}

}

// buildKubeClient creates the kube client
func buildKubeClient(kubeConfig string) (kube.Client, error) {
	// Used by validation
	kubeRestConfig, err := kube.DefaultRestConfig(kubeConfig, "", func(config *rest.Config) {
		config.QPS = 80
		config.Burst = 160
	})
	if err != nil {
		return nil, fmt.Errorf("failed creating kube config: %v", err)
	}

through the built-in NodeRestriction admission plugin.

**Affected Versions**:
  - kube-apiserver v1.20.0 - v1.20.5
  - kube-apiserver v1.19.0 - v1.19.9
  - kube-apiserver <= v1.18.17

**Fixed Versions**:
  - kube-apiserver v1.21.0
  - kube-apiserver v1.20.6
  - kube-apiserver v1.19.10
  - kube-apiserver v1.18.18

This vulnerability was reported by Rogerio Bastos & Ari Lima from RedHat

	"k8s.io/cli-runtime/pkg/resource"
	openapiclient "k8s.io/client-go/openapi"
	"k8s.io/kubectl/pkg/cmd/util"
	"k8s.io/kubectl/pkg/util/openapi"
	"k8s.io/kubectl/pkg/validation"

	"istio.io/istio/pkg/kube"
)

type Factory struct {
	kube.PartialFactory
	full util.Factory
}

func (f Factory) NewBuilder() *resource.Builder {
	return f.full.NewBuilder()
}

- kube-proxy no longer automatically cleans up network rules created by running kube-proxy in other modes. If you are switching the kube-proxy mode (EG: iptables to IPVS), you will need to run `kube-proxy --cleanup`, or restart the worker node (recommended) before restarting kube-proxy. If you are not switching kube-proxy between different modes, this change should not require any action. ([#76109](https://...

	"k8s.io/cli-runtime/pkg/resource"
	"k8s.io/client-go/rest/fake"
	cmdtesting "k8s.io/kubectl/pkg/cmd/testing"
	cmdutil "k8s.io/kubectl/pkg/cmd/util"

	"istio.io/istio/istioctl/pkg/cli"
	"istio.io/istio/pkg/kube"
)

type execTestCase struct {
	execClientConfig map[string][]byte
	args             []string

	// Typically use one of the three
	expectedOutput string // Expected constant output

			}
		}
	}

	return revisions, nil
}

func Webhooks(ctx context.Context, client kube.CLIClient) ([]admitv1.MutatingWebhookConfiguration, error) {
	hooks, err := client.Kube().AdmissionregistrationV1().MutatingWebhookConfigurations().List(ctx, metav1.ListOptions{})
	if err != nil {
		return []admitv1.MutatingWebhookConfiguration{}, err
	}

	"istio.io/istio/istioctl/pkg/clioptions"
	"istio.io/istio/istioctl/pkg/multixds"
	"istio.io/istio/istioctl/pkg/util"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/kube"
)

func HandlerForRetrieveDebugList(kubeClient kube.CLIClient,
	centralOpts clioptions.CentralControlPlaneOptions,
	writer io.Writer,
	istioNamespace string,
) (map[string]*discovery.DiscoveryResponse, error) {