"github.com/google/go-cmp/cmp"
	"google.golang.org/protobuf/testing/protocmp"
	"google.golang.org/protobuf/types/known/durationpb"
	"google.golang.org/protobuf/types/known/wrapperspb"

	meshconfig "istio.io/api/mesh/v1alpha1"
	tpb "istio.io/api/telemetry/v1alpha1"
	"istio.io/istio/pilot/pkg/model"
	"istio.io/istio/pilot/pkg/util/protoconv"
	"istio.io/istio/pilot/pkg/xds/requestidextension"
	"istio.io/istio/pkg/ptr"

```

Otherwise the traces may not be reported.

## Update mesh config

Install or update Istio with the `demo` profile to make sure you have the OpenTelemetry tracing provider enabled:

```bash
istioctl install --set profile=demo -y
```

Or ensure you have the following additional mesh config set in your Istio:

```yaml
mesh: |-
  extensionProviders:
  - name: otel-tracing
    opentelemetry:

func FileAccessLogFromMeshConfig(path string, mesh *meshconfig.MeshConfig) *accesslog.AccessLog {
	// We need to build access log. This is needed either on first access or when mesh config changes.
	fl := &fileaccesslog.FileAccessLog{
		Path: path,
	}
	var formatters []*core.TypedExtensionConfig
	switch mesh.AccessLogEncoding {
	case meshconfig.MeshConfig_TEXT:
		formatString := fileAccessLogFormat(mesh.AccessLogFormat)

	UnmanagedGatewayController        = "istio.io/unmanaged-gateway"
	ManagedGatewayControllerLabel     = "istio.io-gateway-controller"
	ManagedGatewayMeshControllerLabel = "istio.io-mesh-controller"
	ManagedGatewayMeshController      = "istio.io/mesh-controller"

	RemoteGatewayClassName   = "istio-remote"
	WaypointGatewayClassName = "istio-waypoint"

          logFormat:
            labels:
              pod: "%ENVIRONMENT(POD_NAME)%"
              namespace: "%ENVIRONMENT(POD_NAMESPACE)%"
              cluster: "%ENVIRONMENT(ISTIO_META_CLUSTER_ID)%"

apiVersion: telemetry.istio.io/v1alpha1
kind: Telemetry
metadata:
  name: mesh-default
  namespace: istio-system
spec:
  tracing:
    - providers:

		Group:         "",
		Kind:          "MeshConfig",
		Plural:        "meshconfigs",
		Version:       "v1alpha1",
		Proto:         "istio.mesh.v1alpha1.MeshConfig",
		ReflectType:   reflect.TypeOf(&istioioapimeshv1alpha1.MeshConfig{}).Elem(),
		ProtoPackage:  "istio.io/api/mesh/v1alpha1",
		ClusterScoped: false,
		Synthetic:     true,
		Builtin:       false,
		ValidateProto: validation.EmptyValidate,
	}.MustBuild()

apiVersion: release-notes/v2
kind: bug-fix
area: istioctl
issue:
  - 38636
releaseNotes:
  - |

		name           string
		clusterName    string
		port           *model.Port
		mesh           *meshconfig.MeshConfig
		connectionPool *networking.ConnectionPoolSettings

		upgrade bool
	}{
		{
			name:        "mesh upgrade - dr default",
			clusterName: "bar",
			port:        &model.Port{Protocol: protocol.HTTP},
			mesh:        &meshconfig.MeshConfig{H2UpgradePolicy: meshconfig.MeshConfig_UPGRADE},

apiVersion: release-notes/v2
kind: bug-fix
area: istioctl
releaseNotes:
  - |