OpenTelemetry
Applications
Go

Set up Go applications

Configure Go SDK exporters for application logs, traces and metrics. This setup requires SDK registration in your app. See the connection details first.

Install packages

go get go.opentelemetry.io/otel
go get go.opentelemetry.io/contrib/exporters/autoexport
go get go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp
go get go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp
go get go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp
go get go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp

Configure the process

Create and load the shared environment file, then build authentication and set the standard SDK header. autoexport reads the endpoint, protocol and exporter choices from the process environment. Use http/protobuf with the base HTTPS URL.

Register exporters and instrumentation

In your application's telemetry initialization:

  1. Create a span exporter with autoexport.NewSpanExporter(ctx). Check the returned error and pass the exporter to sdktrace.NewTracerProvider with sdktrace.WithBatcher.
  2. Create a metric reader with autoexport.NewMetricReader(ctx). Check the error and pass it to sdkmetric.NewMeterProvider with sdkmetric.WithReader.
  3. Create a log exporter with autoexport.NewLogExporter(ctx). Check the error and connect it to your SDK logging provider and application logging integration. The onboarding setup marks Go logs as experimental.
  4. Register the providers for your app and arrange for them to flush and shut down when the app stops.
  5. For net/http, wrap your handler with otelhttp.NewHandler(mux, "/") to instrument requests.

Use the HTTP exporters installed above. Keep the endpoint in the environment so the exporters append the signal paths. If the app already initializes OpenTelemetry, update that setup instead of creating duplicate providers.

Start the app from the configured environment, generate logs and requests, then check the result.

JavaRuby