example

Example

This example instruments a simple HTTP server-client application.

The application is configured to send spans and metrics to a local instance of the OpenTelemetry Collector, which propagates them to Splunk Observability Cloud.

Prerequisites

• Docker
• Docker Compose

Usage

Run the OpenTelemetry Collector and Jaeger instance:

SPLUNK_ACCESS_TOKEN=<access_token> docker compose up -d

The value for SPLUNK_ACCESS_TOKEN can be found here. Reference: docs.

Run the instrumented application:

export OTEL_SERVICE_NAME="splunk-otel-go-example"
export OTEL_RESOURCE_ATTRIBUTES="deployment.environment=$(whoami)"
go run .

You can find the collected telemetry in:

• OpenTelemetry Collector output
• Jaeger: http://localhost:16686/search
• Prometheus scrape handler: http://localhost:8889/metrics
• Splunk Observability Cloud: https://app.signalfx.com/#/apm?environments=YOURUSERNAME

  Note: Processing might take some time.

Cleanup:

docker compose down