// See the License for the specific language governing permissions and
// limitations under the License.

package multixds

// multixds knows how to target either central Istiod or all the Istiod pods on a cluster.

import (
	"context"
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"net"
	"net/url"
	"os"
	"strings"

					Service: &admitv1.ServiceReference{
						Namespace: "default",
						Name:      "istiod",
					},
					CABundle: []byte("ca"),
				},
			},
			{
				Name: fmt.Sprintf("object.%s", istioInjectionWebhookSuffix),
				ClientConfig: admitv1.WebhookClientConfig{
					Service: &admitv1.ServiceReference{
						Namespace: "default",
						Name:      "istiod",
					},
					CABundle: []byte("ca"),
				},
			},
		},
	}

		if err == nil {
			webhookURL.Path = "/validate"
			whConfig.URL = webhookURL.String()
		}
	}

	// ValidatingWebhookConfiguration failurePolicy is managed by Istiod, so if currently we already have a webhook in cluster
	// that is set to `Fail` by Istiod, we avoid of setting it back to the default `Ignore`.
	vwh, err := client.Kube().AdmissionregistrationV1().ValidatingWebhookConfigurations().

   functions.

  > Note: The service mesh is not an overlay network. It
  > simplifies and enhances how microservices in an application talk to each
  > other over the network provided by the underlying platform.

- **Istiod** - The Istio control plane. It provides service discovery, configuration and certificate management. It consists of the following sub-components:

    - **Pilot** - Responsible for configuring the proxies at runtime.

					Name:     "mesh",
					Port:     15008,
					Protocol: gateway.ProtocolType(protocol.HBONE),
				}},
			},
		}

		// only label if the user has provided their own value, otherwise we let istiod choose a default at runtime (service)
		// this will allow for gateway class to provide a default for that class rather than always forcing service or requiring users to configure correctly
		if trafficType != "" {

}

func checkPilot(cli kube.CLIClient, namespace string, messages *diag.Messages) error {
	deployments, err := cli.Kube().AppsV1().Deployments(namespace).List(context.TODO(), metav1.ListOptions{
		LabelSelector: "app=istiod",
	})
	if err != nil {
		return err
	}
	for _, deployment := range deployments.Items {
		scopingImpacted := false

		// Obtain configmap to verify if affected features are used

							gns := vsNamespace
							parts := strings.SplitN(gatewayName, "/", 2)
							if len(parts) == 2 {
								gatewayName = parts[1]
								gns = parts[0]
							}
							// todo: check istiod env `PILOT_SCOPE_GATEWAY_TO_NAMESPACE`, if true, need to match gateway namespace

							gwID := newResourceID(gns, gatewayName)
							if gok := recordGateways[gwID]; !gok {