Golang Jaeger Integration

jaeger_sample.go

package main

import (
	"context"
	"fmt"

	"github.com/opentracing/opentracing-go"
	"github.com/uber/jaeger-client-go"
	"github.com/uber/jaeger-client-go/config"
)

const COLLECTOR_URL = "http://localhost:14268/api/traces"
const FRONTEND_URL = "http://localhost:16686"

func main() {

	cfg := &config.Configuration{
		ServiceName: "TestService",
		Sampler: &config.SamplerConfig{
			Type:  jaeger.SamplerTypeConst,
			Param: 1,
		},
		Reporter: &config.ReporterConfig{
			CollectorEndpoint: COLLECTOR_URL,
			LogSpans:          true,
		},
	}

	tracer, closer, _ := cfg.NewTracer(config.Logger(jaeger.StdLogger))

	opentracing.SetGlobalTracer(tracer)

	baseSpan, ctx := opentracing.StartSpanFromContext(context.Background(), "Base Span")

	fmt.Printf("Do work 1")

	span1, _ := opentracing.StartSpanFromContext(ctx, "Work1Span1")
	fmt.Printf("Work 1 span 1")
	span1.Finish()

	span2, _ := opentracing.StartSpanFromContext(ctx, "Work1Span2")
	fmt.Printf("Work 1 span 2")
	span2.Finish()

	baseSpan.Finish()

	closer.Close()
}