istioctl x internal-debug syncz --xds-address istio.example.com:15012 --cert-dir ~/.istio-certs

  # Retrieve syncz information via XDS from specific control plane in multi-control plane in-cluster configuration
  # (Select a specific control plane in an in-cluster canary Istio configuration.)
  istioctl x internal-debug syncz --xds-label istio.io/rev=default
`,

			})},
			wantNack: true,
		},
		{
			name: "wrong typed struct value",
			input: []*anypb.Any{protoconv.MessageToAny(&core.TypedExtensionConfig{
				Name:        "wrong-input",
				TypedConfig: messageToAnyWithTypeURL(t, &v3.VmConfig{Runtime: "test", VmId: "test"}, xds.TypedStructType),
			})},
			wantNack: true,
		},
	}

		// By XDS spec, these are not wildcard
		return false
	case model.ClusterType, model.ListenerType:
		// By XDS spec, these are wildcard
		return true
	default:
		// All of our internal types use wildcard semantics
		return true
	}
}

// DiscoveryStream is a server interface for XDS.

// limitations under the License.

package xds

import (
	"fmt"

	discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"
	"github.com/google/go-cmp/cmp"
	"google.golang.org/protobuf/testing/protocmp"

	"istio.io/istio/pilot/pkg/model"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/slices"
	"istio.io/istio/pkg/util/sets"
)

	XDSCacheMaxSize = env.Register("PILOT_XDS_CACHE_SIZE", 60000,
		"The maximum number of cache entries for the XDS cache.").Get()

	XDSCacheIndexClearInterval = env.Register("PILOT_XDS_CACHE_INDEX_CLEAR_INTERVAL", 5*time.Second,
		"The interval for xds cache index clearing.").Get()

                }
              }
            }]
          }]
        }
      },
      {
        "name": "xds-grpc",
        "type" : "STATIC",
        "connect_timeout": "1s",
        "lb_policy": "ROUND_ROBIN",
        "load_assignment": {
          "cluster_name": "xds-grpc",
          "endpoints": [{
            "lb_endpoints": [{
              "endpoint": {
                "address":{

                }
              }
            }]
          }]
        }
      },
      {
        "name": "xds-grpc",
        "type" : "STATIC",
        "connect_timeout": "1s",
        "lb_policy": "ROUND_ROBIN",
        "load_assignment": {
          "cluster_name": "xds-grpc",
          "endpoints": [{
            "lb_endpoints": [{
              "endpoint": {
                "address":{

               "legendFormat": "{{type}}"
            }
         ],
         "title": "XDS Pushes",
         "type": "timeseries"
      },
      {
         "datasource": {
            "type": "datasource",
            "uid": "-- Mixed --"
         },
         "description": "Size of each xDS push.\n",
         "fieldConfig": {
            "defaults": {
               "custom": {

      panels.timeSeries.dns('DNS Request', queries.dns, 'DNS queries recieved per instance'),
    ]),
    row.new('Operations')
    + row.withPanels([
      panels.timeSeries.base(
        'XDS', queries.ztunnelXdsConnections, |||
          Count of XDS connection terminations.
          This will typically spike every 30min for each instance.
        |||
      ),
      panels.timeSeries.base('Workload Manager', queries.workloadManager, |||

                }
              }
            }]
          }]
        }
      },
      {
        "name": "xds-grpc",
        "type" : "STATIC",
        "connect_timeout": "1s",
        "lb_policy": "ROUND_ROBIN",
        "load_assignment": {
          "cluster_name": "xds-grpc",
          "endpoints": [{
            "lb_endpoints": [{
              "endpoint": {
                "address":{