mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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c4ba4811a2
* Add semconv/v1.7.0 package Generated from the v1.7.0 release of the specification using the semconvgen tool manually. This also updates the project to use this version of the semconv package. This does not include the prior, and missing, v1.5.0 and v1.6.0 versions of the semconv package. They are planned to be added in a follow-on PR. * Update CHANGELOG.md
102 lines
2.3 KiB
Go
102 lines
2.3 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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package main
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import (
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"context"
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"io"
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"log"
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"os"
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"os/signal"
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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/stdout/stdouttrace"
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"go.opentelemetry.io/otel/sdk/resource"
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"go.opentelemetry.io/otel/sdk/trace"
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semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
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)
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// newExporter returns a console exporter.
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func newExporter(w io.Writer) (trace.SpanExporter, error) {
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return stdouttrace.New(
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stdouttrace.WithWriter(w),
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// Use human readable output.
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stdouttrace.WithPrettyPrint(),
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// Do not print timestamps for the demo.
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stdouttrace.WithoutTimestamps(),
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)
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}
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// newResource returns a resource describing this application.
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func newResource() *resource.Resource {
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r, _ := resource.Merge(
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resource.Default(),
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resource.NewWithAttributes(
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semconv.SchemaURL,
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semconv.ServiceNameKey.String("fib"),
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semconv.ServiceVersionKey.String("v0.1.0"),
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attribute.String("environment", "demo"),
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),
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)
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return r
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}
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func main() {
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l := log.New(os.Stdout, "", 0)
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// Write telemetry data to a file.
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f, err := os.Create("traces.txt")
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if err != nil {
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l.Fatal(err)
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}
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defer f.Close()
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exp, err := newExporter(f)
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if err != nil {
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l.Fatal(err)
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}
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tp := trace.NewTracerProvider(
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trace.WithBatcher(exp),
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trace.WithResource(newResource()),
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)
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defer func() {
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if err := tp.Shutdown(context.Background()); err != nil {
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l.Fatal(err)
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}
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}()
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otel.SetTracerProvider(tp)
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sigCh := make(chan os.Signal, 1)
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signal.Notify(sigCh, os.Interrupt)
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errCh := make(chan error)
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app := NewApp(os.Stdin, l)
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go func() {
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errCh <- app.Run(context.Background())
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}()
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select {
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case <-sigCh:
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l.Println("\ngoodbye")
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return
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case err := <-errCh:
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if err != nil {
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l.Fatal(err)
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}
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}
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}
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