Spring Boot Actuator监控

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

management:
   # 禁用执行器端点的安全检查
   security:
      enabled: false

{
    "status": "UP"
}

management:
  endpoints:
    web:
      exposure:
        # 包含所有端点使用 "*"，注意有引号
        include: info, health, beans, env, metrics

management.endpoint.health.show-details=always

management.health.redis.enabled=false

info:
  app:
    name: spring-boot-actuator
    version: 1.0.0
    test: test
    encoding: @project.build.sourceEncoding@
    source: @java.version@
    target: @java.version@

{
	"app": {
		"name": "spring-boot-actuator",
		"version": "1.0.0",
		"test": "test",
		"encoding": "UTF-8",
		"source": "1.8.0_102",
		"target": "1.8.0_102"
	}
}

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

@Configuration
public class ActuatorSecurityConfig extends WebSecurityConfigurerAdapter {

    /*
     * version1:
     * 1. 限制 '/shutdown'端点的访问，只允许ACTUATOR_ADMIN访问
     * 2. 允许外部访问其他的端点
     * 3. 允许外部访问静态资源
     * 4. 允许外部访问 '/'
     * 5. 其他的访问需要被校验
     * version2:
     * 1. 限制所有端点的访问，只允许ACTUATOR_ADMIN访问
     * 2. 允许外部访问静态资源
     * 3. 允许外部访问 '/'
     * 4. 其他的访问需要被校验
     */

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        // version1
//        http
//                .authorizeRequests()
//                    .requestMatchers(EndpointRequest.to(ShutdownEndpoint.class))
//                        .hasRole("ACTUATOR_ADMIN")
//                .requestMatchers(EndpointRequest.toAnyEndpoint())
//                    .permitAll()
//                .requestMatchers(PathRequest.toStaticResources().atCommonLocations())
//                    .permitAll()
//                .antMatchers("/")
//                    .permitAll()
//                .antMatchers("/**")
//                    .authenticated()
//                .and()
//                .httpBasic();

        // version2
        http
                .authorizeRequests()
                .requestMatchers(EndpointRequest.toAnyEndpoint())
                    .hasRole("ACTUATOR_ADMIN")
                .requestMatchers(PathRequest.toStaticResources().atCommonLocations())
                    .permitAll()
                .antMatchers("/")
                    .permitAll()
                .antMatchers("/**")
                    .authenticated()
                .and()
                .httpBasic();
    }
}

# Spring Security Default user name and password
spring.security.user.name=actuator
spring.security.user.password=actuator
spring.security.user.roles=ACTUATOR_ADMIN

@Component
public class EasyAdminHealthIndicator extends AbstractHealthIndicator {
    @Override
    public void doHealthCheck(Health.Builder builder) throws Exception {
        boolean checkHealth = check();
        if (checkHealth) {
            builder.up();
        } else {
            builder.down();
        }
        builder.withDetail("code", "200")
                .withDetail("msg", "i am ok");
    }
    private boolean check() {
        return true;
    }
}

{
	"status": "UP",
	"components": {
		"db": {
			"status": "UP",
			"details": {
				"database": "MySQL",
				"validationQuery": "isValid()"
			}
		},
		"diskSpace": {
			"status": "UP",
			"details": {
				"total": 332861009920,
				"free": 312464228352,
				"threshold": 10485760,
				"exists": true
			}
		},
		"easyAdmin": {         // do do do
			"status": "UP",
			"details": {
				"code": "200",
				"msg": "i am ok"
			}
		},
		"mail": {
			"status": "UP",
			"details": {
				"location": "smtp.qq.com:-1"
			}
		},
		"ping": {
			"status": "UP"
		}
	}
}

Gauge.builder("gn.temperature.gauge", new AtomicInteger(37), AtomicInteger::get)

registry.gauge("gn.temperature.gauge", Tags.of("site", "SiteA", "cab", "cab01"), new AtomicInteger(37));

Counter counter = Counter.builder("gn.beat.counter")
  .tags("site", "SiteA", "function", "foo")
  .description("for request errors")
  .register(registry);
counter.increment();

@Component
public class SampleBean {
    private final Counter counter;
    private final List<String> list = new CopyOnWriteArrayList<>();;
    public SampleBean(MeterRegistry registry) {
        this.counter = registry.counter("laker.counter");
         registry.gauge("laker.size", Tags.empty(), this.list.size());
    }
    public void handleMessage(String message) {
        this.counter.increment();
        list.add(message);
    }
    public void handleRemoveMessage(String message) {
        list.remove(message);
    }
}

@Bean
public class MyMetrics implements MeterBinder {
   @Override
   public void bindTo(MeterRegistry meterRegistry) {
    //此处添加相关指标
    meterRegistry.gauge("laker.gauge", Tags.of("site", "SiteA"), new AtomicInteger(37));
   }
}

@SpringBootApplication
public class LakerMapApplication {
    public static void main(String[] args) {
        SpringApplication springApplication = new SpringApplication(LakerMapApplication.class);
        springApplication.addListeners(new ApplicationPidFileWriter(), new WebServerPortFileWriter("./laker.port"));
        springApplication.run(args);
    }
}

spring: 
  pid:
    # 写入pid的文件
    file: ./laker.pid
    # 当无法写入pid文件的时候，是否抛出异常
    fail-on-write-error: false

management.endpoints.web.base-path=/manage

management.endpoints.web.base-path=/
management.endpoints.web.path-mapping.health=healthcheck

management.server.port=8081
management.server.address=127.0.0.1

<!-- Micrometer Prometheus registry  -->
<dependency>
    <groupId>io.micrometer</groupId>
    <artifactId>micrometer-registry-prometheus</artifactId>
</dependency>