grafana를 사용하여 prometheus 엔드 포인트 메트릭을 시각화하는 방법

저는 응용 프로그램 별 메트릭을 수집하기 위해 Prometheus를 사용하여 계측 한 간단한 Spring-Boot 응용 프로그램 (Maven 사용)이 있습니다. 계측 된 Prometheus 측정 항목은 기본적으로 http://localhost:8080/prometheus에 노출되어 있지만 Grafana에서 이러한 측정 항목을 시각화하는 방법을 잘 모르겠습니다.grafana를 사용하여 prometheus 엔드 포인트 메트릭을 시각화하는 방법

HTTP Error Not Found

아래

가 http:localhost:8080/prometheus

Example.java에 메트릭을 노출 내 작업 코드는 : 간단하게 노출 내가 Grafana에서 데이터 소스를 설정하려고하면 오류가 발생합니다 몇 종점. Prometheus가 /homepage 끝점에 도달 한 횟수를 계산하도록 계측되었습니다.

@SpringBootApplication 
@RestController 
public class Example { 

    //Just a logger that keeps track of relevant information: 
    private static final Logger LOGGER = Logger.getLogger(Example.class.getName()); 

    //counter for counting how many times an endpoint has been hit 
    static final Counter myCounter = Counter.build()  
               .name("CounterName") //note: by convention, counters should have "_total" suffix 
               .help("Total requests recorded by a specific endpoint") 
               .labelNames("status") 
               .register(); 

    //using a guage to set the time that a dummy process started, store the time it ends, and then calculate 
    //the elapsed time between when the process started and when the process ended. 
    static final Gauge myGauge = Gauge.build() 
           .name("GaugeName") 
           .help("This is the Gauge help message") 
           .labelNames("label1") 
           .register();    

    @RequestMapping("/hello") 
    String hello() { 

     myCounter.labels("customLabel1").inc(); //increment the number of requests by one 
     myGauge.labels("customLabel1").inc(3); 
     LOGGER.log(Level.INFO, "Number of times /hello has been hit: " + myCounter.labels("customLabel1").get()); 
     LOGGER.log(Level.INFO, "Size of our Gauge: " + myGauge.labels("customLabel1").get()); 
     myGauge.labels("customLabel1").dec(); 
     LOGGER.log(Level.INFO, "size of out Gauge after decrementing by 1: " + myGauge.labels("customLabel1").get()); 

     return "Hello world! This is an example response!"; 
    } 

    @RequestMapping("/homepage") 
    String homePage() { 

     myCounter.labels("customLabel2").inc(); //increment the number of requests by one 
     LOGGER.log(Level.INFO, "Number of times /homepage has been hit: " + myCounter.labels("customLabel2").get()); 

     return "this is the home page!!"; 
    } 


    public static void main(String[] args) throws Exception { 
     SpringApplication.run(Example.class, args); 
    } 

}

MonitoringConfig.java :이 프로 메테우스는 응용 프로그램의 통계 정보를 수집하고 localhostL8080/prometheus

@Configuration 
public class MonitoringConfig { 
    @Bean 
    SpringBootMetricsCollector springBootMetricsCollector(Collection<PublicMetrics> publicMetrics){ 
     SpringBootMetricsCollector springBootMetricsCollector = new SpringBootMetricsCollector(publicMetrics); 
     springBootMetricsCollector.register(); 

     return springBootMetricsCollector; 
    } 

    @Bean 
    ServletRegistrationBean servletRegistrationBean() { 
     DefaultExports.initialize(); 
     return new ServletRegistrationBean(new MetricsServlet(), "/prometheus"); 
    } 
}

의 pom.xml에 그들을 노출하는 방법입니다 : 프로젝트의 메이븐 의존성

<?xml version="1.0" encoding="UTF-8"?> 
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 
    <modelVersion>4.0.0</modelVersion> 

    <groupId>com.example</groupId> 
    <artifactId>springboot</artifactId> 
    <version>0.0.1-SNAPSHOT</version> 

    <parent> 
     <groupId>org.springframework.boot</groupId> 
     <artifactId>spring-boot-starter-parent</artifactId> 
     <version>1.5.8.RELEASE</version> 
    </parent> 
    <dependencies> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-web</artifactId> 
     </dependency> 

     <!-- Prometheus dependencies --> 
     <!-- The client --> 
     <dependency> 
      <groupId>io.prometheus</groupId> 
      <artifactId>simpleclient</artifactId> 
      <version>0.1.0</version> 
     </dependency> 

     <dependency> 
      <groupId>io.prometheus</groupId> 
      <artifactId>simpleclient_spring_boot</artifactId> 
      <version>0.1.0</version> 
     </dependency> 

     <dependency> 
      <groupId>io.prometheus</groupId> 
      <artifactId>simpleclient_servlet</artifactId> 
      <version>0.1.0</version> 
     </dependency> 
     <!-- Hotspot JVM metrics --> 
     <dependency> 
      <groupId>io.prometheus</groupId> 
      <artifactId>simpleclient_hotspot</artifactId> 
      <version>0.1.0</version> 
     </dependency> 
     <!-- Exposition HTTPServer --> 
     <dependency> 
      <groupId>io.prometheus</groupId> 
      <artifactId>simpleclient_httpserver</artifactId> 
      <version>0.1.0</version> 
     </dependency> 
     <!-- Pushgateway exposition --> 
     <dependency> 
      <groupId>io.prometheus</groupId> 
      <artifactId>simpleclient_pushgateway</artifactId> 
      <version>0.1.0</version> 
     </dependency> 

     <!-- Spring Boot Actuator for exposing metrics --> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-actuator</artifactId> 
      <version>1.5.8.RELEASE</version> 
     </dependency> 

    </dependencies> 


</project>

출처

2017-12-04 prometheusnoob