SpringBoot admin+Eureka+钉钉通知 实现微服务监控

SpringBoot admin+Eureka+钉钉通知

一、效果

登录账号+密码

监控服务

查看实时日志

钉钉通知

二、什么是Spring Boot Admin ?

Spring Boot Admin是一个开源社区项目,用于管理和监控SpringBoot应用程序。 应用程序作为Spring Boot Admin Client向为Spring Boot Admin Server注册(通过HTTP)或使用SpringCloud注册中心(例如Eureka,Consul)发现。 UI是的Vue.js应用程序,展示Spring Boot Admin Client的Actuator端点上的一些监控。服务端采用Spring WebFlux + Netty的方式。Spring Boot Admin为注册的应用程序提供以下功能:

  • 显示健康状况

  • 显示详细信息,例如

  • JVM和内存指标

  • micrometer.io指标

  • 数据源指标

  • 缓存指标

  • 显示构建信息编号

  • 关注并下载日志文件

  • 查看jvm system-和environment-properties

  • 查看Spring Boot配置属性

  • 支持Spring Cloud的postable / env-和/ refresh-endpoint

  • 轻松的日志级管理

  • 与JMX-beans交互

  • 查看线程转储

  • 查看http-traces

  • 查看auditevents

  • 查看http-endpoints

  • 查看计划任务

  • 查看和删除活动会话(使用spring-session)

  • 查看Flyway / Liquibase数据库迁移

  • 下载heapdump

  • 状态变更通知(通过电子邮件,Slack,Hipchat,......)

  • 状态更改的事件日志(非持久性)

三、原理

使用 Spring Boot Actuator 监控应用

四、集成 Eureka注册中心

1. 创建 eureka-server,自行google

2. 创建 spring-boot-admin

这是一个 Spring Boot Admin Server端。

pom.xml

1<!--?xml version="1.0" encoding="UTF-8"?--> 2<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"> 3 <modelversion>4.0.0</modelversion> 4 <parent> 5 <groupid>org.springframework.boot</groupid> 6 <artifactid>spring-boot-starter-parent</artifactid> 7 <version>2.1.6.RELEASE</version> 8 <relativepath /> <!-- lookup parent from repository --> 9 </parent> 10 <packaging>jar</packaging> 11 <artifactid>spring-boot-admin</artifactid> 12 <name>spring-boot-admin</name> 13 <description>Spring Boot Admin Server端</description> 14 15 <properties> 16 <java.version>1.8</java.version> 17 <spring-boot-admin.version>2.1.6</spring-boot-admin.version> 18 <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version> 19 </properties> 20 21 <dependencies> 22 <dependency> 23 <groupid>org.springframework.boot</groupid> 24 <artifactid>spring-boot-starter-web</artifactid> 25 </dependency> 26 <dependency> 27 <groupid>de.codecentric</groupid> 28 <artifactid>spring-boot-admin-starter-server</artifactid> 29 </dependency> 30 <dependency> 31 <groupid>org.springframework.cloud</groupid> 32 <artifactid>spring-cloud-starter-netflix-eureka-client</artifactid> 33 </dependency> 34 35 <dependency> 36 <groupid>org.springframework.boot</groupid> 37 <artifactid>spring-boot-starter-test</artifactid> 38 <scope>test</scope> 39 </dependency> 40 <dependency> 41 <groupid>org.springframework.boot</groupid> 42 <artifactid>spring-boot-starter-security</artifactid> 43 </dependency> 44 <dependency> 45 <groupid>org.jolokia</groupid> 46 <artifactid>jolokia-core</artifactid> 47 </dependency> 48 </dependencies> 49 50 <dependencymanagement> 51 <dependencies> 52 <dependency> 53 <groupid>org.springframework.cloud</groupid> 54 <artifactid>spring-cloud-dependencies</artifactid> 55 <version>${spring-cloud.version}</version> 56 <type>pom</type> 57 <scope>import</scope> 58 </dependency> 59 <dependency> 60 <groupid>de.codecentric</groupid> 61 <artifactid>spring-boot-admin-dependencies</artifactid> 62 <version>${spring-boot-admin.version}</version> 63 <type>pom</type> 64 <scope>import</scope> 65 </dependency> 66 </dependencies> 67 </dependencymanagement> 68 69 <build> 70 <plugins> 71 <plugin> 72 <groupid>org.springframework.boot</groupid> 73 <artifactid>spring-boot-maven-plugin</artifactid> 74 </plugin> 75 </plugins> 76 </build> 77 78</project>

application.yml

1spring: 2 application: 3 name: admin-server 4server: 5 port: 1300 6eureka: 7 client: 8 registryFetchIntervalSeconds: 5 9 service-url: 10 defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/ 11 instance: 12 leaseRenewalIntervalInSeconds: 10 13 health-check-url-path: /actuator/health 14 15management: 16 endpoints: 17 web: 18 exposure: 19 include: "*" 20 endpoint: 21 health: 22 show-details: ALWAYS

启动类 SpringbootAdminServerApplication

1@SpringBootApplication 2@EnableAdminServer 3@EnableEurekaClient 4public class ScAdminServerApplication { 5 6 public static void main(String[] args) { 7 SpringApplication.run( ScAdminServerApplication.class, args ); 8 } 9 10}

3. 被监控端

被监控端需要放开端点

application.yml

1spring: 2 application: 3 name: admin-client 4eureka: 5 instance: 6 leaseRenewalIntervalInSeconds: 10 7 health-check-url-path: /actuator/health 8 9 client: 10 registryFetchIntervalSeconds: 5 11 service-url: 12 defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/ 13management: 14 endpoints: 15 web: 16 exposure: 17 include: "*" 18 endpoint: 19 health: 20 show-details: ALWAYS 21server: 22 port: 8762

admin 会自己拉取 Eureka 上注册的信息,主动去注册。

五、集成 Spring Security

Web应用程序中的身份验证和授权有多种方法,因此Spring Boot Admin不提供默认方法。默认情况下,spring-boot-admin-server-ui提供登录页面和注销按钮。我们结合 Spring Security 实现需要用户名和密码登录的安全认证。

springboot-admin工程的pom文件需要增加以下的依赖:

1<dependency> 2 <groupid>org.springframework.boot</groupid> 3 <artifactid>spring-boot-starter-security</artifactid> 4</dependency>

在 spirngboot-admin工的配置文件 application.yml 中配置 spring security 的用户名和密码,这时需要在服务注册时带上 metadata-map 的信息,如下:

1spring: 2 security: 3 user: 4 name: "admin" 5 password: "admin" 6 7eureka: 8 instance: 9 metadata-map: 10 user.name: ${spring.security.user.name} 11 user.password: ${spring.security.user.password} 12 startup: ${random.int} #needed to trigger info and endpoint update after restart

写一个配置类SecuritySecureConfig继承WebSecurityConfigurerAdapter,配置如下:

1/** 2 * security配置 3 * @author wangjiafang 4 * @date 2019/10/10 5 */ 6@Configuration 7public class SecuritySecureConfig extends WebSecurityConfigurerAdapter { 8 9 private final String adminContextPath; 10 11 public SecuritySecureConfig(AdminServerProperties adminServerProperties) { 12 this.adminContextPath = adminServerProperties.getContextPath(); 13 } 14 15 16 @Override 17 protected void configure(HttpSecurity http) throws Exception { 18 // @formatter:off 19 SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler(); 20 successHandler.setTargetUrlParameter("redirectTo"); 21 successHandler.setDefaultTargetUrl(adminContextPath + "/"); 22 23 http.authorizeRequests() 24 .antMatchers(adminContextPath + "/assets/**").permitAll() 25 .antMatchers(adminContextPath + "/login").permitAll() 26 .anyRequest().authenticated() 27 .and() 28 .formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and() 29 .logout().logoutUrl(adminContextPath + "/logout").and() 30 .httpBasic().and() 31 .csrf() 32 .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse()) 33 .ignoringRequestMatchers( 34 new AntPathRequestMatcher(adminContextPath + "/instances", HttpMethod.POST.toString()), 35 new AntPathRequestMatcher(adminContextPath + "/instances/*", HttpMethod.DELETE.toString()), 36 new AntPathRequestMatcher(adminContextPath + "/actuator/**") 37 ); 38 // @formatter:on 39 } 40} 41

重新访问 http:localhost:1300 会出现登录界面,密码是配置文件中配置好的,账号 admin 密码 admin

六、通知

自定义通知+钉钉通知

1、创建钉钉机器人,拿到token,怎么创建钉钉机器人,请自行google
2、下载sdk

钉钉官方提供了统一的SDK,使用SDK可以便捷的调用服务端API,但没有放到公共maven仓库中,需要自行下载后导入到项目,或者上传到自己的搭建的nexus私服中

3、自定义的通知器

通过扩展 AbstractEventNotifier或AbstractStatusChangeNotifier。在springboot-admin-server工程中编写一个自定义的通知器:

1import com.dingtalk.api.DefaultDingTalkClient; 2import com.dingtalk.api.DingTalkClient; 3import com.dingtalk.api.request.OapiRobotSendRequest; 4import com.taobao.api.ApiException; 5import de.codecentric.boot.admin.server.domain.entities.Instance; 6import de.codecentric.boot.admin.server.domain.entities.InstanceRepository; 7import de.codecentric.boot.admin.server.domain.events.InstanceEvent; 8import de.codecentric.boot.admin.server.domain.events.InstanceStatusChangedEvent; 9import de.codecentric.boot.admin.server.notify.AbstractEventNotifier; 10import lombok.extern.slf4j.Slf4j; 11import org.springframework.beans.factory.annotation.Value; 12import org.springframework.stereotype.Component; 13import reactor.core.publisher.Mono; 14 15 16/** 17 * 钉钉通知 18 * @author wangjiafang 19 * @date 2019/10/10 20 */ 21@Component 22@Slf4j 23public class CustomNotifier extends AbstractEventNotifier { 24 25 /** 26 * 消息模板 27 */ 28 private static final String template = "服务名:%s(%s) \n状态:%s(%s) \n服务ip:%s"; 29 30 @Value("${spring.admin.ding-talk-token}") 31 private String dingTalkToken; 32 33 34 public CustomNotifier(InstanceRepository repository) { 35 super(repository); 36 } 37 38 @Override 39 protected Mono<void> doNotify(InstanceEvent event, Instance instance) { 40 return Mono.fromRunnable(() -&gt; { 41 if (event instanceof InstanceStatusChangedEvent) { 42 log.info("Instance {} ({}) is {}", instance.getRegistration().getName(), event.getInstance(), 43 ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus()); 44 45 46 String status = ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus(); 47 String messageText = null; 48 switch (status) { 49 // 健康检查没通过 50 case "DOWN": 51 log.info("发送 健康检查没通过 的通知!"); 52 messageText = String.format(template, instance.getRegistration().getName(),event.getInstance(), ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus(),"健康检查没通过",instance.getRegistration().getServiceUrl()); 53 this.sendMessage(messageText); 54 break; 55 // 服务离线 56 case "OFFLINE": 57 log.info("发送 服务离线 的通知!"); 58 messageText = String.format(template, instance.getRegistration().getName(),event.getInstance(), ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus(),"服务离线",instance.getRegistration().getServiceUrl()); 59 this.sendMessage(messageText); 60 break; 61 //服务上线 62 case "UP": 63 log.info("发送 服务上线 的通知!"); 64 messageText = String.format(template, instance.getRegistration().getName(),event.getInstance(), ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus(),"服务上线",instance.getRegistration().getServiceUrl()); 65 this.sendMessage(messageText); 66 break; 67 // 服务未知异常 68 case "UNKNOWN": 69 log.info("发送 服务未知异常 的通知!"); 70 messageText = String.format(template, instance.getRegistration().getName(),event.getInstance(), ((InstanceStatusChangedEvent) event).getStatusInfo().getStatus(),"服务未知异常",instance.getRegistration().getServiceUrl()); 71 this.sendMessage(messageText); 72 break; 73 default: 74 break; 75 } 76 } else { 77 log.info("Instance {} ({}) {}", instance.getRegistration().getName(), event.getInstance(), 78 event.getType()); 79 } 80 }); 81 } 82 83 /** 84 * 发送消息 85 * @param messageText 86 */ 87 private void sendMessage(String messageText){ 88 DingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/robot/send?access_token="+dingTalkToken); 89 OapiRobotSendRequest request = new OapiRobotSendRequest(); 90 91 request.setMsgtype("text"); 92 OapiRobotSendRequest.Text text = new OapiRobotSendRequest.Text(); 93 text.setContent(messageText); 94 request.setText(text); 95 96 try { 97 client.execute(request); 98 } catch (ApiException e) { 99 log.info("[ERROR] sendMessage", e); 100 } 101 } 102}

七 查看实时日志

要在springbootadmin面板中查看实时日志,需要指定项目中日志输出的地址,比如我的日志是在/logs/项目名称/项目名称-info.log下

1logging: 2 file: /logs/${spring.application.name}/${spring.application.name}-info.log
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