for ns, envoyFilters := range pc1.envoyFiltersByNamespace {
					total1 += len(envoyFilters)
					deleted := 0
					for _, ef := range envoyFilters {
						key := ConfigKey{Kind: kind.EnvoyFilter, Namespace: ns, Name: ef.Name}
						if deletes.Contains(key) {
							deleted++
						}
					}

					if deleted == len(envoyFilters) {
						if _, ok := pc2.envoyFiltersByNamespace[ns]; ok {

	case gvk.EnvoyFilter:
		oldRes := &apiistioioapinetworkingv1alpha3.EnvoyFilter{
			ObjectMeta: origMeta,
			Spec:       *(orig.Spec.(*istioioapinetworkingv1alpha3.EnvoyFilter)),
		}
		modRes := &apiistioioapinetworkingv1alpha3.EnvoyFilter{
			ObjectMeta: modMeta,
			Spec:       *(mod.Spec.(*istioioapinetworkingv1alpha3.EnvoyFilter)),
		}

			Meta: config.Meta{
				Name:             fmt.Sprintf("test-envoyfilter-%d", i),
				Namespace:        "not-default",
				GroupVersionKind: gvk.EnvoyFilter,
			},
			Spec: &networking.EnvoyFilter{
				ConfigPatches: []*networking.EnvoyFilter_EnvoyConfigObjectPatch{cp},
			},
		})
		if err != nil {
			log.Errorf("create envoyfilter failed %v", err)
		}
	}
	return store
}

	envoyFilterConfigs := env.List(gvk.EnvoyFilter, NamespaceAll)
	var previous map[ConfigKey]*EnvoyFilterWrapper
	if features.OptimizedConfigRebuild {
		previous = make(map[ConfigKey]*EnvoyFilterWrapper)
		for namespace, nsEnvoyFilters := range previousIndex {
			for _, envoyFilter := range nsEnvoyFilters {
				previous[ConfigKey{Kind: kind.EnvoyFilter, Namespace: namespace, Name: envoyFilter.Name}] = envoyFilter
			}
		}
	}

	listeners := make([]*listener.Listener, 0, len(listenerMap))
	for _, le := range listenerMap {
		// TODO: this could be outside the loop, but we would get object sharing in EnvoyFilter patches.
		fallthroughNetworkFilters := buildOutboundCatchAllNetworkFiltersOnly(lb.push, lb.node)
		l := buildListenerFromEntry(lb, le, fallthroughNetworkFilters)
		listeners = append(listeners, l)
	}
	return listeners

  // Telemetry v2 settings for stackdriver.
  TelemetryV2StackDriverConfig stackdriver = 3;
}

// Controls telemetry v2 prometheus settings.
message TelemetryV2PrometheusConfig {
  // Controls whether stats envoyfilter would be enabled or not.
  google.protobuf.BoolValue enabled = 1;
}

// TelemetryV2StackDriverConfig controls telemetry v2 stackdriver settings.
message TelemetryV2StackDriverConfig {

			if opt.Scheme != scheme.HTTP {
				return
			}
			t.ConfigIstio().Eval(apps.Namespace.Name(), map[string]string{
				"Destination": "waypoint",
			}, `apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: inbound
spec:
  workloadSelector:
    labels:
      gateway.networking.k8s.io/gateway-name: "{{.Destination}}"
  configPatches:
  - applyTo: HTTP_FILTER
    match: