semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
	"go.opentelemetry.io/otel/trace"
	"k8s.io/apiserver/pkg/endpoints/request"

	tracing "k8s.io/component-base/tracing"
)

// WithTracing adds tracing to requests if the incoming request is sampled
func WithTracing(handler http.Handler, tp trace.TracerProvider) http.Handler {
	opts := []otelhttp.Option{
		otelhttp.WithPropagators(tracing.Propagators()),

	"os"
	"regexp"
	"strings"

	"internal/trace"
	"internal/trace/event"
	"internal/trace/event/go122"
	"internal/trace/raw"
	"internal/trace/version"
	"internal/txtar"
)

func Main(f func(*Trace)) {
	// Create an output file.
	out, err := os.Create(os.Args[1])
	if err != nil {
		panic(err.Error())
	}
	defer out.Close()

	// Create a new trace.
	trace := NewTrace()

	// Call the generator.

	// Perform a traceAcquire/traceRelease on behalf of mp to
	// synchronize with the tracer trying to flush our buffer
	// as well.
	seq := mp.trace.seqlock.Add(1)
	if debugTraceReentrancy && seq%2 != 1 {
		throw("bad use of trace.seqlock or tracer is reentrant")
	}
	systemstack(func() {
		lock(&trace.lock)
		for i := range mp.trace.buf {
			if mp.trace.buf[i] != nil {
				// N.B. traceBufFlush accepts a generation, but it

		}
		if stopTrace {
			if !trace.full[1-(gen%2)].empty() {
				throw("trace: non-empty full trace buffer for next generation")
			}
			if trace.reading != nil || trace.reader.Load() != nil {
				throw("trace: reading after shutdown")
			}
			// Free all the empty buffers.
			for trace.empty != nil {
				buf := trace.empty
				trace.empty = buf.link

	v := ctx.Value(TraceParamsKey{})
	// Should match SingleHandler.Call checks.
	switch typed := v.(type) {
	case *MSS:
		trace.Path += typed.ToQuery()
	case map[string]string:
		m := MSS(typed)
		trace.Path += m.ToQuery()
	case *URLValues:
		trace.Path += typed.Values().Encode()
	case *NoPayload, *Bytes:
		trace.Path = fmt.Sprintf("%s?payload=%T", trace.Path, typed)

        # don't match, the mock won't fire, an E500 will be triggered
        # and the test will fail.
        expected_headers = {
            'x-request-id': '34eeb41d-d267-9e49-8b84-dde403fc5b72',
            'x-b3-traceid': '80f198ee56343ba864fe8b2a57d3eff7',
            'x-b3-spanid': 'e457b5a2e4d86bd1',
            'x-b3-sampled': '1',
            'sw8': '40c7fdf104e3de67'
        }

// the net package. This package is purely internal for use by the
// net/http/httptrace package and has no stable API exposed to end
// users.
package nettrace

// TraceKey is a context.Context Value key. Its associated value should
// be a *Trace struct.
type TraceKey struct{}

// LookupIPAltResolverKey is a context.Context Value key used by tests to
// specify an alternate resolver func.

    "global.tracer.lightstep.address" "meshConfig.defaultConfig.tracing.lightstep.address"
    "global.tracer.lightstep.accessToken" "meshConfig.defaultConfig.tracing.lightstep.accessToken"
    "global.tracer.zipkin.address" "meshConfig.defaultConfig.tracing.zipkin.address"
    "global.tracer.stackdriver.debug" "meshConfig.defaultConfig.tracing.stackdriver.debug"

    /**
     * Specifies that all rules call {@code traceIn}/{@code traceOut}.
     */
    @Input
    public boolean isTrace() {
        return trace;
    }

    public void setTrace(boolean trace) {
        this.trace = trace;
    }

    /**
     * Specifies that all lexer rules call {@code traceIn}/{@code traceOut}.
     */
    @Input
    public boolean isTraceLexer() {

apiVersion: release-notes/v2
kind: bug-fix
area: telemetry
issue:
  - 49911
releaseNotes:
  - |