Monitoring Spring Boot Applications with Prometheus and Grafana

Introduction

Effective monitoring is crucial for maintaining the health and performance of applications. Integrating Prometheus and Grafana with Spring Boot provides insightful metrics and visualizations.

Architecture Overview

Spring Boot Actuator exposes operational information about the application. Prometheus collects these metrics, and Grafana visualizes them.

Monitoring Architecture

Source: Callicoder

Steps to Integrate

1. Add Dependencies:

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

2. Configure Actuator Endpoints:

   yamlCopy
   management:
     endpoints:
       web:
         exposure:
           include: "prometheus"
     metrics:
       export:
         prometheus:
           enabled: true

3. Set Up Prometheus:

   Configure Prometheus to scrape metrics from the /actuator/prometheus endpoint.

4. Visualize with Grafana:

   Add Prometheus as a data source in Grafana and create dashboards to visualize the metrics.

Conclusion

Integrating Prometheus and Grafana with Spring Boot applications enables proactive monitoring, helping teams to detect and resolve issues promptly.