spring boot actuator

1. Add the Spring Boot Actuator Dependency to your project:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-actuator</artifactId>
</dependency>

1. Configure Actuator Endpoints in the application.properties or application.yml file:

management.endpoints.web.exposure.include=*

1. Enable or Disable Specific Endpoints:

management.endpoint.health.show-details=always
management.endpoint.beans.enabled=false

1. Customize Actuator Endpoint Paths:

management.endpoints.web.base-path=/custom-actuators

1. Secure Actuator Endpoints:

management.endpoints.web.exposure.include=health,info
management.endpoint.health.roles=admin

1. Use Spring Boot Actuator Health Indicators:

@Component
public class CustomHealthIndicator implements HealthIndicator {
    @Override
    public Health health() {
        // Custom health check logic
        return Health.up().withDetail("custom", "OK").build();
    }
}

1. Customize Actuator Info Endpoint:

info.app.version=1.0.0
info.app.description=My Spring Boot Application

1. Monitor Application Metrics:

management.metrics.export.influx.enabled=true
management.metrics.export.influx.uri=http://localhost:8086
management.metrics.export.influx.db=my_metrics_db

1. Use Custom Actuator Endpoints:

@Endpoint(id = "custom")
public class CustomEndpoint {
    @ReadOperation
    public String customEndpoint() {
        // Custom endpoint logic
        return "Custom Endpoint";
    }
}

1. Access Actuator Endpoints:

GET /actuator/health
GET /actuator/info
GET /actuator/metrics
GET /actuator/custom-actuators/custom

1. Enable Spring Boot Actuator HTTP Trace:

management.trace.http.enabled=true

1. Customize Actuator HTTP Trace Endpoint:

management.endpoints.web.exposure.include=trace
management.endpoints.trace.enabled=true

1. Use Spring Boot Actuator Auditing:

@EntityListeners(AuditingEntityListener.class)
@MappedSuperclass
public class AuditableEntity {
    @CreatedDate
    private LocalDateTime createdAt;
    @LastModifiedDate
    private LocalDateTime updatedAt;
}

1. Customize Actuator Auditing Properties:

spring.data.jpa.repositories.auditing.enabled=true
management.auditevents.jpa.event-encoding=hex

1. Monitor JVM Memory Usage:

management.endpoints.jmx.exposure.include=*

1. Customize Actuator JMX Endpoint:

management.endpoints.jmx.unique-names=true

1. Enable Spring Boot Actuator Metrics:

management.endpoint.metrics.enabled=true

1. Customize Actuator Metrics:

management.metrics.tags.application=my-app

1. Export Actuator Metrics to Prometheus:

management.metrics.export.prometheus.enabled=true
management.metrics.export.prometheus.path=/prometheus

1. Monitor and Export Actuator Metrics to Grafana:

management.metrics.export.grafana.enabled=true
management.metrics.export.grafana.url=http://localhost:3000
management.metrics.export.grafana.dashboard-compatibility=GRAFANA_V7

1. Customize Actuator Logging:

logging.level.org.springframework.boot.actuate=DEBUG