feat: add zipkin b3 header propagation (#1110)

Author: isker

go.mod

@@ -28,6 +28,7 @@ require (
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.11.1
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.53.0
+	go.opentelemetry.io/contrib/propagators/b3 v1.40.0
 	go.opentelemetry.io/otel v1.40.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.28.0

go.sum

@@ -155,6 +155,8 @@ go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ
 go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.53.0 h1:9G6E0TXzGFVfTnawRzrPl83iHOAV7L8NJiR8RSGYV1g=
 go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.53.0/go.mod h1:azvtTADFQJA8mX80jIH/akaE7h+dbm/sVuaHqN13w74=
+go.opentelemetry.io/contrib/propagators/b3 v1.40.0 h1:xariChe8OOVF3rNlfzGFgQc61npQmXhzZj/i82mxMfg=
+go.opentelemetry.io/contrib/propagators/b3 v1.40.0/go.mod h1:72WvbdxbOfXaELEQfonFfOL6osvcVjI7uJEE8C2nkrs=
 go.opentelemetry.io/otel v1.40.0 h1:oA5YeOcpRTXq6NN7frwmwFR0Cn3RhTVZvXsP4duvCms=
 go.opentelemetry.io/otel v1.40.0/go.mod h1:IMb+uXZUKkMXdPddhwAHm6UfOwJyh4ct1ybIlV14J0g=
 go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.28.0 h1:3Q/xZUyC1BBkualc9ROb4G8qkH90LXEIICcs5zv1OYY=

src/trace/trace.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/google/uuid"
 	logger "github.com/sirupsen/logrus"
+	"go.opentelemetry.io/contrib/propagators/b3"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
@@ -62,7 +63,7 @@ func InitProductionTraceProvider(protocol string, serviceName string, serviceNam
 		sdktrace.WithResource(resource),
 	)
 	otel.SetTracerProvider(tp)
-	otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
+	otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, b3.New(), propagation.Baggage{}))
 	logger.Infof("TracerProvider initialized with following parameters: protocol: %s, serviceName: %s, serviceNamespace: %s, serviceInstanceId: %s, samplingRate: %f",
 		protocol, serviceName, serviceNamespace, useServiceInstanceId, samplingRate)
 	return tp
@@ -100,7 +101,7 @@ func GetTestSpanExporter() *tracetest.InMemoryExporter {
 		sdktrace.WithSyncer(testSpanExporter),
 	)
 	otel.SetTracerProvider(tp)
-	otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
+	otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, b3.New(), propagation.Baggage{}))
 
 	return testSpanExporter
 }