FastAPI Full Observability

FastAPI Full Observability

A production-ready observability stack for FastAPI + Gunicorn applications running in Docker.

Covers all four pillars:

• Metrics — VictoriaMetrics + Prometheus exposition
• Logs — Loki with structured logfmt
• Traces — Tempo via OpenTelemetry (OTLP gRPC)
• Profiles — Pyroscope continuous CPU profiling

Includes alerting out of the box: vmalert evaluates PromQL rules, Alertmanager routes to Telegram and email.

Datasources required

• Prometheus-compatible (VictoriaMetrics)
• Loki
• Tempo
• Pyroscope

Full setup & source code

github.com/eugeneliukindev/fastapi-observability-docker-stack