本文介紹SpringCloud使用Prometheus,基於Eureka服務發現。java
在以前寫過兩篇有關Prometheus使用的文章,以下:git
《SpringBoot使用SOFA-Lookout監控》spring
可是若是使用微服務的話,一個服務一個服務的配置彷佛太麻煩,Prometheus提供了不少服務發現的機制去統一配置服務,具體能夠查看官網介紹:https://prometheus.io/docs/prometheus/latest/configuration/configuration/apache
包含以下這些配置:springboot
從圖中能夠看出,這裏提供了Consul的服務發現機制,沒有Eureka的服務發現機制。可是若是Eureka想要使用的話能夠經過配置一個適配器的方式,使用consul_sd_config配置的方式使用Prometheus服務發現。app
建立一個Eureka Server,這裏使用的Eureka最新版本Greenwich.SR1,也就是如今Idea默認建立的,在配置中加入eureka-consul-adapter依賴,pom文件完整內容以下所示。maven
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.3.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.dalaoyang</groupId> <artifactId>springcloud_prometheus_server</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springcloud_prometheus_server</name> <description>springcloud_prometheus_server</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR1</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>at.twinformatics</groupId> <artifactId>eureka-consul-adapter</artifactId> <version>1.1.0</version> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </repository> </repositories> </project>
這裏須要注意一下SpringCloud版本與eureka-consul-adapter的對照,以下所示。spring-boot
剩下的就是一些簡單地配置,如配置文件:微服務
server.port=8761 eureka.instance.hostname=localhost eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/ ##禁止本身向本身註冊 eureka.client.register-with-eureka=false eureka.client.fetch-registry=false
啓動類加入註解啓動註冊中心,以下:
@SpringBootApplication @EnableEurekaServer //啓動服務註冊中心 public class SpringcloudPrometheusServerApplication { public static void main(String[] args) { SpringApplication.run(SpringcloudPrometheusServerApplication.class, args); } }
其實這個也沒什麼好說的,和普通使用Prometheus同樣,固然,也能夠使用SOFA-Lookout的模式,這裏根據狀況自行選擇便可,這裏以使用micrometer-registry-prometheus依賴爲例,完整pom以下所示。
<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.3.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.dalaoyang</groupId> <artifactId>springcloud_prometheus_client</artifactId> <version>0.0.1-SNAPSHOT</version> <name>springcloud_prometheus_client</name> <description>springcloud_prometheus_client</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR1</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>io.micrometer</groupId> <artifactId>micrometer-registry-prometheus</artifactId> <version>1.1.3</version> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> </repository> </repositories> </project>
配置文件以下,端口號8888,以下:
##端口號 server.port=8888 spring.application.name=springboot_prometheus_client eureka.client.service-url.defaultZone=http://server1:8761/eureka/ management.endpoints.web.exposure.include=* management.metrics.tags.application=${spring.application.name}
啓動類以下:
@SpringBootApplication public class SpringcloudPrometheusClientApplication { public static void main(String[] args) { SpringApplication.run(SpringcloudPrometheusClientApplication.class, args); } @Bean MeterRegistryCustomizer<MeterRegistry> configurer( @Value("${spring.application.name}") String applicationName) { return (registry) -> registry.config().commonTags("application", applicationName); } }
在Prometheus中配置eureka地址(server),以及須要收集的服務(services)。
- job_name: 'consul-prometheus' scheme: http metrics_path: '/actuator/prometheus' consul_sd_configs: #consul 地址 - server: '127.0.0.1:8761' scheme: http services: [SPRINGBOOT_PROMETHEUS_CLIENT]
分別啓動Eureka-Server和Eureka-Client,首先查看Eureka界面,以下:
接下來查看一下Prometheus,以下:
從上圖能夠看到,服務以及被收集了,接下來查看grafana控制檯,如圖:
源碼地址:
Eureka Server : https://gitee.com/dalaoyang/springcloud_learn/tree/master/springcloud_prometheus_server
Eureka Client : https://gitee.com/dalaoyang/springcloud_learn/tree/master/springcloud_prometheus_client