foobar

This is a distributed tracing demo! Foobar consists of two extremely complex services: foo and bar.

On this demo:

• You can generate load with k6.
• Services foo and bar:
  • Are written in Python.
  • Are instrumented with OpenTelemetry.
  • Export the spans to an OpenTelemetry Collector using the OTLP exporter.
• The OpenTelemetry Collector exports the tracing data to Grafana Tempo.
• Grafana Tempo can be queried from Grafana.

Here's a small diagram:

QuickStart

Requirements: Docker and Docker Compose.

1. Build and run services with docker-compose:

   docker-compose up --build -d 

2. See running services with:

   docker-compose ps

3. Generate some load with k6:

   docker run -i --network=foobar-demo_default grafana/k6 run --quiet - <example.js

4. See logs with:

   docker-compose logs foo | grep trace_id

5. Pick a trace_id from the logs.

6. Go to Grafana (http://localhost:3000) -> Explore -> Tempo and paste the trace_id.

   

7. Stop the whole setup with:

   docker-compose stop