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

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