SpringCloud使用Sofa-lookout监控(基于Eureka)

逃离我推掉我的手 2022-02-17 02:43 223阅读 0赞

> 本文介绍SpringCloud使用Sofa-lookout，基于Eureka服务发现。

## 1.前景 ##

本文属于是前几篇文章的后续，其实一开始感觉这个没有什么必要写的，但是最近一个朋友问我关于这个的问题，所以想着还是写一篇基于Eureka监控使用Pormetheus监控Sofa-Lookout监控的文章。

前几篇文章请看：

[《SpringBoot使用prometheus监控》][SpringBoot_prometheus]

[《SpringBoot使用SOFA-Lookout监控》][SpringBoot_SOFA-Lookout]

[《SpringCloud使用Prometheus监控(基于Eureka)》][SpringCloud_Prometheus_Eureka]

至于使用consul服务发现监控这里就不介绍了，网上的文章很多，千篇一律。这一篇与上面的这个文章还是有一些不同的，Sofa-Lookout是通过暴露一个端口来进行监控，比较特殊，所以这里给大家借鉴一下。

## 2.Eureka Server ##

本文还是需要在Eureka上面加入eureka-consul-adapter依赖，eureka-consul-adapter项目github地址：

[https://github.com/twinformatics/eureka-consul-adapter][https_github.com_twinformatics_eureka-consul-adapter]

这里在介绍一下Eureka Server内容，就是在普通Eureka Server基础上加入上述依赖，完整pom如下：

<?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>2.1.4.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.dalaoyang</groupId>
        <artifactId>springcloud_sofalookout_server</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>springcloud_sofalookout_server</name>
        <description>springcloud_sofalookout_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>
    
    </project>

配置文件如下：

server.port=8761
    
    eureka.instance.hostname=localhost
    eureka.client.service-url.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
    
    ##禁止自己向自己注册
    eureka.client.register-with-eureka=false
    eureka.client.fetch-registry=false

启动类如下：

package com.dalaoyang;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
    
    @SpringBootApplication
    @EnableEurekaServer //启动服务注册中心
    public class SpringcloudSofalookoutServerApplication {
    
        public static void main(String[] args) {
            SpringApplication.run(SpringcloudSofalookoutServerApplication.class, args);
        }
    
    }

## 3.Eureka Client ##

这里有一些是与之前[《SpringBoot使用SOFA-Lookout监控》][SpringBoot_SOFA-Lookout]文章不同的地方，首先在pom文件中加入sofa依赖：

<?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>2.1.4.RELEASE</version>
            <relativePath/> 
        </parent>
        <groupId>com.dalaoyang</groupId>
        <artifactId>springcloud_sofalookout_client</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <name>springcloud_sofalookout_client</name>
        <description>springcloud_sofalookout_client</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-client</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
    
            <dependency>
                <groupId>com.alipay.sofa.lookout</groupId>
                <artifactId>lookout-sofa-boot-starter</artifactId>
                <version>1.5.2</version>
            </dependency>
            <dependency>
                <groupId>com.alipay.sofa.lookout</groupId>
                <artifactId>lookout-reg-prometheus</artifactId>
                <version>1.5.2</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>
    
    </project>

配置文件配置如下：

##端口号
    server.port=8888
    ##服务名称
    spring.application.name=springboot_sofalookout_client
    ##EurekaServer
    eureka.client.service-url.defaultZone=http://server1:8761/eureka/
    
    com.alipay.sofa.lookout.prometheus-exporter-server-port=8081
    eureka.instance.metadata-map.address=${spring.cloud.client.ip-address}:${com.alipay.sofa.lookout.prometheus-exporter-server-port}

其中需要解释如下两个参数：

*  com.alipay.sofa.lookout.prometheus-exporter-server-port：sofa-lookout端口
 *  eureka.instance.metadata-map.address：封装的Eureka元信息，内容是真正sofa-lookout数据的地址，方便稍后prometheus使用，这个属性不是必须要叫这个名字！！！

## 4.Prometheus ##

prometheus配置如下：

# my global config
    global:
      scrape_interval:     15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
      evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
      # scrape_timeout is set to the global default (10s).
    
    # Alertmanager configuration
    alerting:
      alertmanagers:
      - static_configs:
        - targets:
          # - alertmanager:9093
    
    # Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
    rule_files:
      # - "first_rules.yml"
      # - "second_rules.yml"
    
    # A scrape configuration containing exactly one endpoint to scrape:
    # Here it's Prometheus itself.
    scrape_configs:
      - job_name: 'prometheus'
        static_configs:
        - targets: ['127.0.0.1:9090']
    
      - job_name: 'consul-prometheus'
        consul_sd_configs:
          - server: '172.16.103.33:8761'
            services: [SPRINGBOOT_SOFALOOKOUT_CLIENT]
        relabel_configs:
          - source_labels: ['__meta_consul_metadata_address']
            target_label:  __address__

这里有几点需要注意的：

*  172.16.103.33是我的内网IP，这个不需太多关注。
 *  relabel\_configs标签用于修改一些默认配置，比如本文使用\_\_meta\_consul\_metadata\_address属性替代\_\_address\_\_属性，这里的\_\_meta\_consul\_metadata\_address属性值就是我们在application.properties中的eureka.instance.metadata-map.address属性值，这个是eureka-consul-adapter依赖为我们转换的。
 *  上面两个属性怎么获取的？ 接下来告诉你！

## 5.测试 ##

分别启动EurekaServer，EurekaClient，prometheus，首先查看Eureka，如图所示。

![1][]

实例已经注册了，接下来查看prometheus/targets，如图所示。

![2][]

从这里可以看到，prometheus已经可以成功收集了，接下来我们查看一下都有哪些属性，鼠标放到对应的labels上，如图所示。

![3][]

浮框的内容就是对应实例的属性值，可以对应使用。

接下来查看对应Grafana，也可以查看到对应信息了，如图

![4][]

## 6.源码 ##

Eureka Server源码地址：[https://gitee.com/dalaoyang/springcloud\_learn/tree/master/springcloud\_sofalookout\_server][https_gitee.com_dalaoyang_springcloud_learn_tree_master_springcloud_sofalookout_server]

Eureka Client源码地址：[https://gitee.com/dalaoyang/springcloud\_learn/tree/master/springcloud\_sofalookout\_client][https_gitee.com_dalaoyang_springcloud_learn_tree_master_springcloud_sofalookout_client]

[SpringBoot_prometheus]: https://www.dalaoyang.cn/article/100
[SpringBoot_SOFA-Lookout]: https://www.dalaoyang.cn/article/101
[SpringCloud_Prometheus_Eureka]: https://www.dalaoyang.cn/article/102
[https_github.com_twinformatics_eureka-consul-adapter]: https://github.com/twinformatics/eureka-consul-adapter
[1]: /images/20220217/42285740784e48efb0b88ce20c2b6faa.png
[2]: /images/20220217/6ff201daae7740ed933d1d979f537f72.png
[3]: /images/20220217/85d7e00dbf4b435c813733c8984a5edb.png
[4]: /images/20220217/3ad1e2ceadda4d8f9e400588ace44a83.png
[https_gitee.com_dalaoyang_springcloud_learn_tree_master_springcloud_sofalookout_server]: https://gitee.com/dalaoyang/springcloud_learn/tree/master/springcloud_sofalookout_server
[https_gitee.com_dalaoyang_springcloud_learn_tree_master_springcloud_sofalookout_client]: https://gitee.com/dalaoyang/springcloud_learn/tree/master/springcloud_sofalookout_client