mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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5568a30723
* Add semconv/v1.12.0 * Update all semconv use to v1.12.0 Co-authored-by: Aaron Clawson <3766680+MadVikingGod@users.noreply.github.com>
102 lines
2.9 KiB
Go
102 lines
2.9 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Command jaeger is an example program that creates spans
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// and uploads to Jaeger.
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package main
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import (
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"context"
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"log"
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"time"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/attribute"
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"go.opentelemetry.io/otel/exporters/jaeger"
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"go.opentelemetry.io/otel/sdk/resource"
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tracesdk "go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
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)
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const (
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service = "trace-demo"
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environment = "production"
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id = 1
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)
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// tracerProvider returns an OpenTelemetry TracerProvider configured to use
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// the Jaeger exporter that will send spans to the provided url. The returned
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// TracerProvider will also use a Resource configured with all the information
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// about the application.
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func tracerProvider(url string) (*tracesdk.TracerProvider, error) {
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// Create the Jaeger exporter
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exp, err := jaeger.New(jaeger.WithCollectorEndpoint(jaeger.WithEndpoint(url)))
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if err != nil {
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return nil, err
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}
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tp := tracesdk.NewTracerProvider(
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// Always be sure to batch in production.
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tracesdk.WithBatcher(exp),
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// Record information about this application in a Resource.
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tracesdk.WithResource(resource.NewWithAttributes(
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semconv.SchemaURL,
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semconv.ServiceNameKey.String(service),
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attribute.String("environment", environment),
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attribute.Int64("ID", id),
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)),
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)
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return tp, nil
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}
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func main() {
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tp, err := tracerProvider("http://localhost:14268/api/traces")
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if err != nil {
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log.Fatal(err)
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}
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// Register our TracerProvider as the global so any imported
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// instrumentation in the future will default to using it.
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otel.SetTracerProvider(tp)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Cleanly shutdown and flush telemetry when the application exits.
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defer func(ctx context.Context) {
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// Do not make the application hang when it is shutdown.
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ctx, cancel = context.WithTimeout(ctx, time.Second*5)
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defer cancel()
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if err := tp.Shutdown(ctx); err != nil {
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log.Fatal(err)
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}
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}(ctx)
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tr := tp.Tracer("component-main")
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ctx, span := tr.Start(ctx, "foo")
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defer span.End()
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bar(ctx)
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}
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func bar(ctx context.Context) {
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// Use the global TracerProvider.
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tr := otel.Tracer("component-bar")
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_, span := tr.Start(ctx, "bar")
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span.SetAttributes(attribute.Key("testset").String("value"))
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defer span.End()
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// Do bar...
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}
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