Open logging tracing

A PoC (proof of concept) of a logging and tracing system using modern open source observability tech stack:

• Grafana
• Grafana Loki
• Grafana Tempo
• Prometheus
• OpenTelemetry
• FluentBit

Microservice runtime and tech stack:

• Docker
• Node.js with Express
• OpenTelemetry Node.js SDK
• Postgres, Redis

High-level architecture

Diagram created using https://excalidraw.com/

Start system locally

• Docker pre-installed on machine
• Simply run make up
• Optional: if you want to use Taskfile instead, refer to this link to install, replace make with task
• Wait for few seconds for services to start

API requests

• Run make run to make API call to microservice

View logs and traces

• Go to Grafana at http://localhost:3000
• Go to Explore
• View logs with Loki data source

• View traces and service graph with Tempo