prometheus.io/path: /stats/prometheus
        prometheus.io/port: "15020"
        prometheus.io/scrape: "true"
        proxy.istio.io/config: |-
          discoveryAddress: foo:123
          concurrency: 0
          proxyMetadata:
            FOO: bar
            ISTIO_META_TLS_CLIENT_KEY: /etc/identity2/client/keys/client-key.pem
        sidecar.istio.io/proxyCPU: 4000m

	if err := json.Unmarshal(data, b); err != nil {
		return nil, err
	}
	return b, err
}

type GenerateBootstrapOptions struct {
	Node             *model.Node
	XdsUdsPath       string
	DiscoveryAddress string
	CertDir          string
}

// GenerateBootstrap generates the bootstrap structure for gRPC XDS integration.
func GenerateBootstrap(opts GenerateBootstrapOptions) (*Bootstrap, error) {

		expectError bool
		expected    any
	}{
		{
			testName: "proxy config",
			key:      "config",
			option:   option.ProxyConfig(&model.NodeMetaProxyConfig{DiscoveryAddress: "fake"}),
			expected: &model.NodeMetaProxyConfig{DiscoveryAddress: "fake"},
		},
		{
			testName: "pilotSAN",
			key:      "pilot_SAN",
			option:   option.PilotSubjectAltName([]string{"fake"}),
			expected: `[{"exact":"fake"}]`,
		},
		{

	default:
		log.Info("Using existing certs")
	}

	o := secOpt

	// If not set explicitly, default to the discovery address.
	if o.CAEndpoint == "" {
		o.CAEndpoint = proxyConfig.DiscoveryAddress
		o.CAEndpointSAN = istiodSAN.Get()
	}

	o.CredIdentityProvider = credIdentityProvider
	credFetcher, err := credentialfetcher.NewCredFetcher(credFetcherTypeEnv, o.TrustDomain, jwtPath, o.CredIdentityProvider)

	t.Helper()
	pcArgs := []string{"pc", "bootstrap", podName, "-n", podNamespace}
	bootstrapConfig, _ := i.InvokeOrFail(t, pcArgs)
	expected := fmt.Sprintf("\"discoveryAddress\": \"istiod-%s.istio-system.svc:15012\"", revision)
	if !strings.Contains(bootstrapConfig, expected) {
		t.Errorf("expected revision %q in bootstrap config, did not find", revision)
	}

	opts := make([]option.Instance, 0)

	opts = append(opts, option.ProxyConfig(config),
		option.Cluster(getServiceCluster(metadata)),
		option.PilotGRPCAddress(config.DiscoveryAddress),
		option.DiscoveryAddress(config.DiscoveryAddress),
		option.StatsdAddress(config.StatsdUdpAddress),
		option.XDSRootCert(metadata.XDSRootCert))

	// Add tracing options.
	if config.Tracing != nil {
		isH2 := false

  },
  "layered_runtime": {
      "layers": [
          {
            "name": "global config",

  },
  "layered_runtime": {
      "layers": [

  },
  "layered_runtime": {
      "layers": [
          {

        {{ end -}}
        - --drainDuration
        - "{{ formatDuration .ProxyConfig.DrainDuration }}"
        - --discoveryAddress
        - "{{ annotation .ObjectMeta `sidecar.istio.io/discoveryAddress` .ProxyConfig.DiscoveryAddress }}"
      {{- if eq .Values.global.proxy.tracer "lightstep" }}
        - --lightstepAddress
        - "{{ .ProxyConfig.GetTracing.GetLightstep.GetAddress }}"