Spring Boot Observability in Practice: Actuator, Micrometer & OpenTelemetry
summary
Shows concrete Spring Boot wiring: Actuator endpoints (can run on a separate port with liveness/readiness probes), Micrometer meterRegistry with timed/counted/observed annotations, Prometheus scrape endpoint and Grafana dashboards, and OpenTelemetry for distributed traces. Demonstrates a flaky custom health indicator that toggles overall health, warns about heap-dump and HTTP-exchange risks, suggests CycloneDX SBOM exposure, and notes sampling defaults to 10% (set 100% in dev, not in production) to avoid telemetry overload.
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chapters (14)
- 0:00Spring Boot observability intro
- 1:05Monitoring vs observability
- 3:56Monitoring vs telemetry
- 7:44Actuator production defaults
- 11:16Securing Actuator endpoints
- 16:35Kubernetes probes
- 18:01Build info & custom endpoints
- 22:00Micrometer metrics & KPIs
- 27:40Metrics to Prometheus & OTel
- 30:27Distributed tracing
- 35:44Structured logging & audits
- 38:15Observability best practices
- 44:13Connecting Actuator Micrometer OTel
- 46:19Summary
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