Prometheus監(jiān)控對(duì)微服務(wù)的整合還是比較友好的，尤其是在有大量微服務(wù)的時(shí)候，不可能每新增一個(gè)服務(wù)，就去手動(dòng)修改Prometheus的配置，增加服務(wù)監(jiān)控配置，這個(gè)時(shí)候就需要使用服務(wù)自發(fā)現(xiàn)。今天阿湯博客就介紹下SpringBoot1.5.X（Spring Cloud Edgware.SR6）（不同的版本主要區(qū)別于引入依賴的版本不同）接入prometheus對(duì)微服務(wù)JVM監(jiān)控，如何實(shí)現(xiàn)prometheus對(duì)服務(wù)自發(fā)現(xiàn)。
1、微服務(wù)端引入pom依賴：
<!-- prometheus --> <dependency> <groupId>io.micrometer</groupId> <artifactId>micrometer-registry-prometheus</artifactId> <version>1.0.11</version> </dependency> <dependency> <groupId>io.micrometer</groupId> <artifactId>micrometer-spring-legacy</artifactId> <version>1.0.11</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency>
spring-boot-starter-security依賴是為了開(kāi)啟對(duì)監(jiān)控?cái)?shù)據(jù)獲取接口進(jìn)行用戶名密碼校驗(yàn)的，如果沒(méi)有這個(gè)校驗(yàn)我們的監(jiān)控接口相當(dāng)于在裸奔。任何人都可以通過(guò)這個(gè)接口獲取我們的監(jiān)控?cái)?shù)據(jù)。
2、添加一個(gè)啟動(dòng)類，使prometheus獲取我們當(dāng)前項(xiàng)目的名稱以及其他信息。
package com.hjkj.component;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.spring.autoconfigure.MeterRegistryCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class MicrometerConfiguration {
@Bean
MeterRegistryCustomizer meterRegistryCustomizer(MeterRegistry meterRegistry) {
return meterRegistry1 -> {
meterRegistry.config()
.commonTags("application", "micrometer-gateway");
};
}
}
3、由于Prometheus v2.21.0之前的版本不支持 Eureka注冊(cè)中心的服務(wù)發(fā)現(xiàn)，所以Eureka Server需要引入一個(gè)適配依賴（主要用于prometheus自動(dòng)發(fā)現(xiàn)服務(wù)）：
<dependency> <groupId>at.twinformatics</groupId> <artifactId>eureka-consul-adapter</artifactId> <version>0.0.1</version> </dependency>
eureka-consul-adapter版本和SpringBoot的對(duì)應(yīng)關(guān)系：
Java 1.8+
Versions 1.1.x and later
Spring Boot 2.1.x
Spring Cloud Greenwich
Versions 1.0.x and later
Spring Boot 2.0.x
Spring Cloud Finchley
Versions 0.x
Spring Boot 1.5.x
Spring Cloud Edgware
4、配置application.yml
management: context-path: /actuator endpoints: jmx: exposure: include: '*' web: exposure: include: info,health,prometheus metrics: distribution: percentiles-histogram[http:server:requests]: true security: enabled: true security: basic: enabled: true path: /actuator user: name: yoursUser password: yoursPassWord
5、配置prometheus.yml，增加job。
- job_name: "www.zhongjima.net-java" scheme: http metrics_path: '/actuator/prometheus' basic_auth: username: yoursUser password: yoursPassWord consul_sd_configs: - server: 'eureka-server-adress:8761' scheme: http services: relabel_configs: - source_labels: [__meta_consul_service_id] target_label: instance
按照以上配置以后，prometheus就會(huì)自己去eureka注冊(cè)中心拉取服務(wù)進(jìn)行監(jiān)控信息獲取，效果圖如下：
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