物联网架构成长之路(30)-Spring Boot Admin微服务WebUI监控

0. 前言

　　一个完整的微服务解决方案包含了许多微服务，基于我们需要观察各个微服务的运行状态，因此Spring Boot 生态提供了Spring Boot Admin 这个组件来实现微服务管理WEB UI。但是整体的注册中心还是基于Eureka，只是WebUI是用这个Spring Boot Admin 来显示而已。具体的结构如下所示

1. Eureka服务

　　这个没什么好说的，按照创建一个微服务的流程，通过 Spring Starter 工具，自动生成一个Eureka微服务。主要就是配置Application.java application.yml pom.xml 这三个文件。
　　pom.xml

 <?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.wunaozai.eureka</groupId>
     <artifactId>global-service-eureka</artifactId>
     <version>0.0.1</version>
     <packaging>jar</packaging>

     <name>global-service-eureka</name>
     <description>服务注册中心</description>

     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>2.1.0.RELEASE</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>

     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
         <spring-cloud.version>Greenwich.M2</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>
     </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>
             <snapshots>
                 <enabled>false</enabled>
             </snapshots>
         </repository>
     </repositories>

 </project>

　　application.yml 这里我配置两份，一份EUREKA1:8761 一份EUREKA:8762

 server:
   port: 8761

 spring:
   application:
     name: EUREKA服务注册中心

 management:
   endpoints:
     web:
       exposure:
         include:
         - "*"
   endpoint:
     health:
       show-details: ALWAYS

 eureka:
   client:
 #    register-with-eureka: false
 #    fetch-registry: false
     service-url:
       defaultZone: http://EUREKA1:8761/eureka/,http://EUREKA2:8762/eureka/
   instance:
     hostname: EUREKA1

　　Application.java

 package com.wunaozai.eureka;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

 @EnableEurekaServer
 @SpringBootApplication
 public class GlobalServiceEurekaApplication {

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

2. Spring Boot Admin 服务

　　默认是不需要帐号密码登录的，我这里配置一下spring-boot-starter-security 增加帐号密码登录
　　pom.xml

 <?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>2.1.2.RELEASE</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>com.wunaozai.admin.demo</groupId>
     <artifactId>spring-cloud-admin-demo</artifactId>
     <version>0.0.1</version>
     <name>spring-cloud-admin-demo</name>
     <description>Demo project for Spring Boot</description>

     <properties>
         <java.version>1.8</java.version>
         <spring-boot-admin.version>2.1.1</spring-boot-admin.version>
         <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
     </properties>

     <dependencies>
         <dependency>
             <groupId>de.codecentric</groupId>
             <artifactId>spring-boot-admin-starter-server</artifactId>
         </dependency>
         <dependency>
             <groupId>de.codecentric</groupId>
             <artifactId>spring-boot-admin-starter-client</artifactId>
         </dependency>
         <dependency>
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
         </dependency>
         <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-security</artifactId>
         </dependency>

         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-devtools</artifactId>
             <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
     </dependencies>

     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>de.codecentric</groupId>
                 <artifactId>spring-boot-admin-dependencies</artifactId>
                 <version>${spring-boot-admin.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
             <dependency>
                 <groupId>org.springframework.cloud</groupId>
                 <artifactId>spring-cloud-dependencies</artifactId>
                 <version>${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>

　　applicatoin.yml

 server:
   port: 8788

 spring:
   boot:
     admin:
       client:
         url:
         - "http://ADMIN:8788" #这里配置Spring Boot Admin 服务地址，配置这里表示把自己注册到Admin上，如果使用Eureka服务发现的，这部分可以省略
         username: 'user'
         password: 'password'
   application:
     name: WEB服务监控中心
   security:
     user:
       name: 'user'
       password: 'password'

 management:
   endpoints:
     web:
       exposure:
         include:
         - "*"
   endpoint:
     health:
       show-details: ALWAYS

 info:
   version: ${spring.application.name}:${server.port}

 eureka:
   instance:
     lease-renewal-interval-in-seconds: 10
     health-check-url-path: /actuator/health
     # 注册给eureka的时候告诉eureka自己的密码
     metadata-map:
       "user.name": ${spring.security.user.name}
       "user.password": ${spring.security.user.password}
     prefer-ip-address: true
   client:
     registry-fetch-interval-seconds: 5
 #    fetch-registry: false
 #    register-with-eureka: false
     service-url:
       defaultZone: ${EUREKA_SERVICE_URL:http://EUREKA1:8761}/eureka/,${EUREKA_SERVICE_URL:http://EUREKA2:8762}/eureka/

　　Application.java

 package com.wunaozai.admin.demo;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;

 import de.codecentric.boot.admin.server.config.AdminServerProperties;
 import de.codecentric.boot.admin.server.config.EnableAdminServer;

 @Configuration
 @EnableAdminServer
 @EnableEurekaClient
 @SpringBootApplication
 public class SpringCloudAdminDemoApplication {

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

     @Configuration
     public static class SecuritySecureConfig extends WebSecurityConfigurerAdapter {
         private final String adminContextPath;

         public SecuritySecureConfig(AdminServerProperties prop) {
             this.adminContextPath = prop.getContextPath();
         }

         @Override
         protected void configure(HttpSecurity http) throws Exception {
             SavedRequestAwareAuthenticationSuccessHandler handler = new SavedRequestAwareAuthenticationSuccessHandler();
             handler.setTargetUrlParameter("redirectTo");

             http.authorizeRequests()
                 .antMatchers(adminContextPath + "/assets/**").permitAll()
                 .antMatchers(adminContextPath + "/login").permitAll()
                 .antMatchers(adminContextPath + "/actuator/**").permitAll()
                 .anyRequest().authenticated()
                 .and()
                 .formLogin().loginPage(adminContextPath + "/login").successHandler(handler)
                 .and()
                 .logout().logoutUrl(adminContextPath + "/logout").and()
                 .httpBasic().and().csrf().disable();
         }
     }
 }

3. Spring Boot Client 服务(配置到Eureka服务)
　　这里就配置Eureka Client 即可
　　pom.xml

 <?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>2.1.2.RELEASE</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>com.wunaozai.client.demo</groupId>
     <artifactId>spring-cloud-client-demo</artifactId>
     <version>0.0.1</version>
     <name>spring-cloud-client-demo</name>
     <description>Demo project for Spring Boot</description>

     <properties>
         <java.version>1.8</java.version>
         <spring-boot-admin.version>2.1.1</spring-boot-admin.version>
         <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
     </properties>

     <dependencies>
         <dependency>
             <groupId>de.codecentric</groupId>
             <artifactId>spring-boot-admin-starter-client</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.cloud</groupId>
             <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
         </dependency>

         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-devtools</artifactId>
             <scope>runtime</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>
             <scope>test</scope>
         </dependency>
     </dependencies>

     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>de.codecentric</groupId>
                 <artifactId>spring-boot-admin-dependencies</artifactId>
                 <version>${spring-boot-admin.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
             <dependency>
                 <groupId>org.springframework.cloud</groupId>
                 <artifactId>spring-cloud-dependencies</artifactId>
                 <version>${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>

　　applicatoin.yml

 server:
   port: 18889
 spring:
 #  boot:
 #    admin:
 #      client:
 #        url:
 #        - "http://127.0.0.1:8788"
 #        username: 'user'
 #        password: 'password'
   application:
     name: 子业务服务器

 management:
   endpoints:
     web:
       exposure:
         include:
         - "*"
   endpoint:
     health:
       show-details: ALWAYS

 #eureka:
 #  client:
 #    fetch-registry: false
 #    register-with-eureka: false
 eureka:
   instance:
     lease-renewal-interval-in-seconds: 10
     health-check-url-path: /actuator/health
     prefer-ip-address: true
   client:
     registry-fetch-interval-seconds: 5
     service-url:
       defaultZone: ${EUREKA_SERVICE_URL:http://172.16.23.241:8761}/eureka/

　　Application.java

 package com.wunaozai.client.demo;

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;

 @EnableEurekaClient
 @SpringBootApplication
 public class SpringCloudClientDemoApplication {

     public static void main(String[] args) {
         System.out.println("ok");
         SpringApplication.run(SpringCloudClientDemoApplication.class, args);
     }

 }

4. Spring Boot Client 服务(直接配置Admin地址)
　　如果不想通过Eureka，只是用Spring Boot Admin，可以只配置Admin的地址来实现。通过在application.yml 配置

 spring:
   boot:
     admin:
       client:
         url:
         - "http://127.0.0.1:8788"
         username: 'user'
         password: 'password'

5. 举个例子(基于docker-compose)

　　使用mvn package 把以上3个微服务打包成Docker镜像
　　Dockerfile 文件

 FROM java:8
 VOLUME /tmp

 ADD spring-cloud-admin-demo-0.0.1.jar app.jar
 RUN bash -c 'touch /app.jar'

 EXPOSE 8788

 ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "/app.jar"]

　　Build 构建镜像

 docker build -t wunaozai/eureka:0.0.1 -f Dockerfile .

　　docker-compose.yml 文件

 version: '3'

 services:
     EUREKA1:
         image: eureka:1
         ports:
             - 8761:8761
     EUREKA2:
         image: eureka:2
         ports:
             - 8762:8762
     ADMIN:
         image: admin:1
         ports:
             - 8788:8788
     client-1:
         image: client:1
         ports:
             - 18881:18888
     client-2:
         image: client:1
         ports:
             - 18882:18888
     client-3:
         image: client:1
         ports:
             - 18883:18888
     client-4:
         image: client:1
         ports:
             - 18884:18888
     client-5:
         image: client:1
         ports:
             - 18885:18888
     client-6:
         image: client:1
         ports:
             - 18886:18888
     client-7:
         image: client:1
         ports:
             - 18887:18888
     client-8:
         image: client:1
         ports:
             - 18888:18888

　　日志界面

　　WeaveScope 界面

　　Eureka 界面

　　Spring Boot Admin 界面

　　如果出现这个问题，请升级到最新的浏览器(Chrome) 一开始用Chrome 59,不行，升级到Chrome 71 才可以。

参考资料
　　https://blog.csdn.net/kinginblue/article/details/52132113
　　https://blog.csdn.net/hubo_88/article/details/80671192

本文地址: https://www.cnblogs.com/wunaozai/p/10313190.html