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Spring Boot 4 OpenTelemetry: From Zero to Full Observability in Minutes

Name: Spring Boot 4 OpenTelemetry: From Zero to Full Observability in Minutes
Uploaded: 2025-12-23T18:38:55+00:00
Duration: 22 min 43 s

Dan Vega

Spring Boot 4 introduces a a really nice addition to the observability story: a dedicated OpenTelemetry starter that lets you export metrics, traces, and logs without pulling in the full Actuator dependency.

In this tutorial, I walk you through the new spring-boot-starter-opentelemetry from scratch. You'll learn how to set up a complete observability stack using Docker Compose, visualize everything in Grafana, and connect your logs directly to traces for powerful debugging workflows. As I like to say, "hope is not a production strategy", and this starter makes production-ready observability easier than ever.

What You'll Learn

✅ How the new OpenTelemetry starter differs from using Spring Boot Actuator

✅ Setting up the LGTM stack (Loki, Grafana, Tempo, Mimir) with Docker Compose

✅ Viewing traces and metrics in Grafana out of the box

✅ Adding custom metrics using @Observed annotations

✅ Configuring log export via OTLP (new in Spring Boot 4.0.1)

✅ Connecting logs to traces for seamless debugging

Resources

🔗 Source Code: https://github.com/danvega/ot

🔗 Spring Boot 4 Repo: https://github.com/danvega/sb4

🔗 Road to GA Blog Post: https://spring.io/blog/2025/11/18/opentelemetry-with-spring-boot

🔗 Spring Office Hours with Brian Clozel: https://spring-office-hours.transistor.fm/episodes/s4e34-opentelemetry-with-spring-boot