row.new('Push Information')
    + row.withPanels([
      panels.timeSeries.xdsPushes(
        'XDS Pushes', queries.xdsPushes, |||
          Rate of XDS push operations, by type. This is incremented on a per-proxy basis.
        |||
      ),
      panels.timeSeries.base(
        'Events', queries.pilotEvents, |||
          Size of each xDS push.
        |||
      ),
      panels.timeSeries.base(

	w.Lock()
	defer w.Unlock()
	w.watch = &xds.WatchedResource{TypeUrl: typeURL, ResourceNames: names}
}

func (w *Watch) UpdateWatchedResource(_ string, f func(*xds.WatchedResource) *xds.WatchedResource) {
	w.Lock()
	defer w.Unlock()
	w.watch = f(w.watch)
}

func (w *Watch) GetID() string {
	// This always maps to the same local Envoy instance.
	return ""
}

  istioctl ps --xds-address istio.example.com:15012 --cert-dir ~/.istio-certs

  # Retrieve proxy status 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 ps --xds-label istio.io/rev=default
`,
		Aliases: []string{"ps"},

	metav1beta1 "istio.io/api/type/v1beta1"
	securityclient "istio.io/client-go/pkg/apis/security/v1beta1"
	"istio.io/istio/pilot/pkg/features"
	"istio.io/istio/pilot/pkg/model"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pilot/test/xds"
	"istio.io/istio/pkg/config/constants"
	"istio.io/istio/pkg/kube/kclient/clienttest"
	"istio.io/istio/pkg/test"
	"istio.io/istio/pkg/test/util/assert"
	"istio.io/istio/pkg/util/sets"
)

					args := []string{
						"x", "proxy-status", "--xds-via-agents", fmt.Sprintf("%s.%s", podName, namespace),
					}
					output, _, err := istioCtl.Invoke(args)
					if err != nil {
						return err
					}
					return expectSubstrings(output, "Clusters Match", "Listeners Match", "Routes Match")
				})

				// Test gRPC-based tapped XDS using istioctl.
				retry.UntilSuccessOrFail(t, func() error {

	typeTag = monitoring.CreateLabel("type")

	TotalXDSInternalErrors = monitoring.NewSum(
		"pilot_total_xds_internal_errors",
		"Total number of internal XDS errors in pilot.",
	)

	ExpiredNonce = monitoring.NewSum(
		"pilot_xds_expired_nonce",
		"Total number of XDS requests with an expired nonce.",
	)

	// pilot_total_xds_rejects should be used instead. This is for backwards compatibility
	cdsReject = monitoring.NewGauge(

	s := xds.NewFakeDiscoveryServer(t, xds.FakeOptions{})
	ads := s.ConnectDeltaADS().WithType(v3.ClusterType)
	ads.RequestResponseAck(nil)
}

func TestDeltaAdsClusterUpdate(t *testing.T) {
	s := xds.NewFakeDiscoveryServer(t, xds.FakeOptions{})
	ads := s.ConnectDeltaADS().WithType(v3.EndpointType)
	nonce := ""
	sendEDSReqAndVerify := func(add, remove, expect []string) {
		t.Helper()
		res := ads.RequestResponseAck(&discovery.DeltaDiscoveryRequest{

	"KNative revision, set if running in knative").Get()

// DiscoveryStream is a server interface for XDS.
type DiscoveryStream = xds.DiscoveryStream

// DeltaDiscoveryStream is a server interface for Delta XDS.
type DeltaDiscoveryStream = discovery.AggregatedDiscoveryService_DeltaAggregatedResourcesServer

// DiscoveryClient is a client interface for XDS.
type DiscoveryClient = discovery.AggregatedDiscoveryService_StreamAggregatedResourcesClient

		// Increase metric when xds connection error, for example: forgot to restart ingressgateway or sidecar after changing root CA.
		metrics.IstiodConnectionErrors.Increment()
		return err
	}
	log.Infof("connected to upstream XDS server: %s", p.istiodAddress)
	defer log.Debugf("disconnected from XDS server: %s", p.istiodAddress)

	con.upstream = upstream

	// Handle upstream xds recv
	go func() {
		for {

// limitations under the License.

package xds

import (
	"encoding/json"
	"strconv"
	"strings"
	"time"

	core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
	discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"

	"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pilot/pkg/networking/util"
	v3 "istio.io/istio/pilot/pkg/xds/v3"
	"istio.io/istio/pkg/env"