Practical Examples

Implement observability directly with executable code and configurations.

Learning Path#

Environment Setup - Configure Prometheus + Grafana + Loki + Tempo with Docker Compose
Spring Boot Metrics - Configure Actuator + Micrometer
Kafka Monitoring - Build Kafka cluster observability
Full-Stack Observability - Integrate Metrics + Logs + Traces

Example Project Structure#

examples/
├── docker-compose.yml       # Complete infrastructure
├── prometheus/
│   ├── prometheus.yml      # Prometheus configuration
│   └── rules/              # Recording/Alerting Rules
├── grafana/
│   ├── provisioning/       # Datasources, dashboards
│   └── dashboards/         # JSON dashboards
└── spring-app/
    └── application.yml     # Spring Boot configuration

Tech Stack#

Component	Tool	Role
Metrics Collection	Prometheus	Time-series metrics storage
Metrics Exposure	Micrometer	Spring Boot metrics
Log Collection	Loki + Promtail	Log storage/querying
Distributed Tracing	Tempo	Trace storage
Visualization	Grafana	Dashboard
Alerting	Alertmanager	Alert routing

Prerequisites#

Docker 24.0+
Docker Compose 2.20+
4GB+ memory
(Optional) Java 17+, Gradle 8+