opentelemetry-trace-sampling-blogpost

This is a repository which acts as a companion to the Grafana blog post on Grafana Agent's tail sampling functionality. Please see that blog post for details on using this repository.

The repository includes:

• A simple application that mimics a service receiving and responding to API requests, which sends logs directly to a local Loki instance.
• A configuration for Grafana Agent that receives traces in OTLP format and sends them to a local Tempo instance.
• Two pre-provisioned data sources for Grafana.
• A Docker Compose file used to stand up a local demonstration environment, comprised of:
  • Demo application
  • Grafana Agent
  • Grafana
  • Tempo
  • Loki

Running

Ensure you have both Docker and Docker Compose installed, and then in a terminal simply run:

docker-compose up

This will stand up all the required components and allow you to login to the local Grafana instance at http://localhost:3000/.

If you already have something running on port 3000, ensure that you change the relevant port in the docker-compose.yml file first to a free port.