Mastering Spring Boot Actuator: Advanced In-Depth Insights

Explore how Spring Boot actuator exposes health, metrics, and info via http endpoints or beans to monitor and manage production applications, with easy configuration and extension.

Trace the actuator changelog across 1.x, 2.x, and 3.x, from default /actuator exposure and security configuration shifts to micrometer metrics and renamed endpoints.

Explore how the discovery page reveals actuator endpoints and their URLs, how to customize the base path, disable discovery, and selectively expose endpoints like health and info.

Investigate the Spring Boot actuator health endpoint and its indicators and contributors. Configure access and details via YAML or properties, and implement custom health indicators.

Enable recording of http exchanges by supplying a http exchange repository bean from actuator, expose the http exchanges endpoint for development, and adopt opentelemetry or zipkin brave for production observability.

Explore the Spring Boot actuator beans endpoint to view beans in the application context, inspect the repository bean, its dependencies, resource type, scope, and aliases.

Learn how Liquibase and Flyway endpoints expose applied migrations for database version control and how Spring Boot manages these migrations with the right beans.

Enable the startup endpoint by configuring a buffering application startup class and posting to view startup steps and start time events; use the shutdown endpoint for graceful post shutdown.

Explore spring boot actuator endpoints for caches, conditions, config props, env, info, integration graph, and loggers, and understand how build and git info contributors are exposed.

Explore Spring Boot Actuator endpoints to monitor your app with metrics and metric retrieval, mappings, Quartz scheduler insights, scheduled tasks, Spring sessions, and thread-dump details.

Examine heap dump retrieval on hotspot JVM and OpenJ9, inspect log endpoints with http range support, and expose Prometheus metrics via micrometer in Spring Boot Actuator.

Explore how Spring Boot actuator security exposes only the slash and health endpoints by default, and customize http endpoint access with security filters and request matchers.

Add the spring boot starter security dependency in a spring boot actuator project, run the application, and test an unauthorized endpoint with the generated development password.

Configure a custom security filter chain and endpoint request matcher to protect Spring Boot actuator endpoints, enabling a demo in-memory user with admin role and observing access via Postman.

Explore how spring boot actuator auto configures metrics via micrometer registries and meta registries. Tag metrics from yaml, export to a backend for integration tests, and use observability annotations.

Explore how Prometheus and Grafana enable metrics monitoring for a Spring Boot app by wiring micrometer with Prometheus, Docker Compose, Prometheus data sources, and Grafana dashboards.

Learn to set up graphite and Grafana for monitoring with docker compose, enable a graphite profile, and visualize metrics via Grafana dashboards.

Register spring boot apps with a spring boot admin server, configure the server and client, and monitor actuator metrics and app metadata such as pid, memory, build, and environment data.