Spring Boot Tutorial 0/110 lessons ~6 min read Lesson 62“Production-grade backends”

Monitoring & Logging

You can't fix what you can't see.

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Focus

2 guided sections

Practice signal

Examples included

Career prep

Foundation builder

Introduction

You can't fix what you can't see. The modern observability stack: Spring Boot Actuator (health, metrics) + Micrometer (metrics shim) + Prometheus (scrape) + Grafana (dashboards) + Loki (logs) + Tempo/Jaeger (traces).

Informative example

bash

# pom.xml
<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
  <groupId>io.micrometer</groupId>
  <artifactId>micrometer-registry-prometheus</artifactId>
</dependency>

# application.yml
management:
  endpoints:
    web:
      exposure:
        include: health,info,metrics,prometheus
  endpoint:
    health:
      show-details: when-authorized
  metrics:
    tags:
      application: ${spring.application.name}

# Custom metric
@Service @RequiredArgsConstructor
public class OrderService {
  private final MeterRegistry meter;
  public Order place(NewOrder cmd) {
    meter.counter("orders.placed", "tier", cmd.tier()).increment();
    ...
  }
}

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