add tracing config to api

api/v1alpha1/istiocontrolplane.gen.json

@@ -2351,6 +2351,9 @@
           },
           "sidecarInjector": {
             "$ref": "#/components/schemas/istio_operator.v2.api.v1alpha1.SidecarInjectorConfiguration"
+          },
+          "tracer": {
+            "$ref": "#/components/schemas/istio.mesh.v1alpha1.Tracing"
           }
         }
       },
@@ -2822,6 +2825,10 @@
             "type": "boolean",
             "nullable": true
           },
+          "tracer": {
+            "description": "Specify which tracer to use. One of: zipkin, lightstep, datadog, stackdriver",
+            "type": "string"
+          },
           "enableCoreDump": {
             "description": "If set, newly injected sidecars will have core dumps enabled.",
             "type": "boolean",

api/v1alpha1/istiocontrolplane.pb.html

@@ -4,7 +4,7 @@
 layout: protoc-gen-docs
 generator: protoc-gen-docs
 schema: istio-operator.api.v1alpha1.IstioControlPlaneSpec
-number_of_entries: 41
+number_of_entries: 42
 ---
 <h2 id="IstioControlPlaneSpec">IstioControlPlaneSpec</h2>
 <section>
@@ -295,6 +295,17 @@ <h2 id="IstioControlPlaneSpec">IstioControlPlaneSpec</h2>
 <td>
 <p>Standalone sidecar injector configuration.</p>
 
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="IstioControlPlaneSpec-tracer">
+<td><code>tracer</code></td>
+<td><code><a href="https://istio.io/docs/reference/config/istio.mesh.v1alpha1.html#Tracing">Tracing</a></code></td>
+<td>
+<p>Tracing defines configuration for the tracing performed by Envoy instances.</p>
+
 </td>
 <td>
 No
@@ -709,6 +720,17 @@ <h2 id="ProxyConfiguration">ProxyConfiguration</h2>
 <td>
 <p>ExcludeOutboundPorts the comma separated list of outbound ports to be excluded from redirection to Envoy</p>
 
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="ProxyConfiguration-tracer" class="oneof oneof-start">
+<td><code>tracer</code></td>
+<td><code>string (oneof)</code></td>
+<td>
+<p>Specify which tracer to use. One of: zipkin, lightstep, datadog, stackdriver</p>
+
 </td>
 <td>
 No
@@ -1749,6 +1771,105 @@ <h2 id="ContainerImageConfiguration">ContainerImageConfiguration</h2>
 <p>ImagePullSecrets is an optional list of references to secrets to use for pulling any of the images.
 +optional</p>
 
+</td>
+<td>
+No
+</td>
+</tr>
+</tbody>
+</table>
+</section>
+<h2 id="istio-mesh-v1alpha1-Tracing">istio.mesh.v1alpha1.Tracing</h2>
+<section>
+<p>Tracing defines configuration for the tracing performed by Envoy instances.</p>
+
+<table class="message-fields">
+<thead>
+<tr>
+<th>Field</th>
+<th>Type</th>
+<th>Description</th>
+<th>Required</th>
+</tr>
+</thead>
+<tbody>
+<tr id="istio-mesh-v1alpha1-Tracing-zipkin" class="oneof oneof-start">
+<td><code>zipkin</code></td>
+<td><code><a href="https://istio.io/docs/reference/config/istio.mesh.v1alpha1.html#Tracing-Zipkin">Zipkin (oneof)</a></code></td>
+<td>
+<p>Use a Zipkin tracer.</p>
+
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="istio-mesh-v1alpha1-Tracing-lightstep" class="oneof">
+<td><code>lightstep</code></td>
+<td><code><a href="#istio-mesh-v1alpha1-Tracing-Lightstep">Lightstep (oneof)</a></code></td>
+<td>
+<p>Use a Lightstep tracer.
+NOTE: For Istio 1.15+, this configuration option will result
+in using OpenTelemetry-based Lightstep integration.</p>
+
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="istio-mesh-v1alpha1-Tracing-datadog" class="oneof">
+<td><code>datadog</code></td>
+<td><code><a href="https://istio.io/docs/reference/config/istio.mesh.v1alpha1.html#Tracing-Datadog">Datadog (oneof)</a></code></td>
+<td>
+<p>Use a Datadog tracer.</p>
+
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="istio-mesh-v1alpha1-Tracing-stackdriver" class="oneof">
+<td><code>stackdriver</code></td>
+<td><code><a href="https://istio.io/docs/reference/config/istio.mesh.v1alpha1.html#Tracing-Stackdriver">Stackdriver (oneof)</a></code></td>
+<td>
+<p>Use a Stackdriver tracer.</p>
+
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="istio-mesh-v1alpha1-Tracing-open_census_agent" class="oneof">
+<td><code>openCensusAgent</code></td>
+<td><code><a href="https://istio.io/docs/reference/config/istio.mesh.v1alpha1.html#Tracing-OpenCensusAgent">OpenCensusAgent (oneof)</a></code></td>
+<td>
+<p>Use an OpenCensus tracer exporting to an OpenCensus agent.</p>
+
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="istio-mesh-v1alpha1-Tracing-sampling">
+<td><code>sampling</code></td>
+<td><code>double</code></td>
+<td>
+<p>The percentage of requests (0.0 - 100.0) that will be randomly selected for trace generation,
+if not requested by the client or not forced. Default is 1.0.</p>
+
+</td>
+<td>
+No
+</td>
+</tr>
+<tr id="istio-mesh-v1alpha1-Tracing-tls_settings">
+<td><code>tlsSettings</code></td>
+<td><code><a href="https://istio.io/docs/reference/config/networking/destination-rule.html#ClientTLSSettings">ClientTLSSettings</a></code></td>
+<td>
+<p>Use the tls_settings to specify the tls mode to use. If the remote tracing service
+uses Istio mutual TLS and shares the root CA with Pilot, specify the TLS
+mode as <code>ISTIO_MUTUAL</code>.</p>
+
 </td>
 <td>
 No

api/v1alpha1/istiocontrolplane.proto

@@ -18,6 +18,7 @@ import "api/v1alpha1/common.proto";
 import "api/v1alpha1/istiomeshgateway.proto";
 import "k8s.io/api/core/v1/generated.proto";
 import "mesh/v1alpha1/config.proto";
+import "mesh/v1alpha1/proxy.proto";
 import "google/api/field_behavior.proto";
 import "google/protobuf/wrappers.proto";
 
@@ -122,6 +123,8 @@ message IstioControlPlaneSpec {
     string networkName = 23;
     // Standalone sidecar injector configuration.
     SidecarInjectorConfiguration sidecarInjector = 24;
+    // Tracing defines configuration for the tracing performed by Envoy instances.
+    istio.mesh.v1alpha1.Tracing tracer = 25;
 }
 
 enum ModeType {
@@ -231,6 +234,8 @@ message ProxyConfiguration {
     string excludeInboundPorts = 12;
     // ExcludeOutboundPorts the comma separated list of outbound ports to be excluded from redirection to Envoy
     string excludeOutboundPorts = 13;
+    // Specify which tracer to use. One of: zipkin, lightstep, datadog, stackdriver
+    optional string tracer = 14;
 }
 
 enum ProxyLogLevel {