SpringBoot Admin应用监控搭建

简介

Spring Boot Admin 用于监控基于 Spring Boot 的应用，它是在 Spring Boot Actuator 的基础上提供简洁的可视化 WEB UI。

参考手册地址：http://codecentric.github.io/spring-boot-admin/2.1.1/

Spring Boot Admin 是由服务端Server和客户端Client组成

• 服务端
• 1.创建一个springboot工程并添加以下依赖

  <dependencies>
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-web</artifactId>
       </dependency>
  
       <dependency>
           <groupId>de.codecentric</groupId>
           <artifactId>spring-boot-admin-server</artifactId>
           <version>2.1.1</version>
       </dependency>
  
       <dependency>
           <groupId>de.codecentric</groupId>
           <artifactId>spring-boot-admin-server-ui</artifactId>
           <version>2.1.1</version>
       </dependency>
  
       <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
  </dependencies>

• 2.重写权限控制类(非必要)

  @Configuration
  public class SecuritySecureConfig extends WebSecurityConfigurerAdapter {
      private final String adminContextPath;
  
      public SecuritySecureConfig(AdminServerProperties adminServerProperties) {
          this.adminContextPath = adminServerProperties.getContextPath();
      }
  
      @Override
      protected void configure(HttpSecurity http) throws Exception {
          SavedRequestAwareAuthenticationSuccessHandler successHandler = new SavedRequestAwareAuthenticationSuccessHandler();
          successHandler.setTargetUrlParameter("redirectTo");
          successHandler.setDefaultTargetUrl(adminContextPath + "/monitor");
  
          http.authorizeRequests()
                  .antMatchers(adminContextPath + "/assets/**").permitAll()
                  .antMatchers(adminContextPath + "/login").permitAll()
                  .anyRequest().authenticated()
                  .and()
                  .formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and()
                  .logout().logoutUrl(adminContextPath + "/logout").and()
                  .httpBasic().and()
                  .csrf()
                  .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
                  .ignoringAntMatchers(
                          adminContextPath + "/instances",
                          adminContextPath + "/actuator/**"
                  );
      }
  }

  @EnableWebSecurity
  public class WebSecurityConfig implements WebMvcConfigurer {
  
      @Bean
      public UserDetailsService userDetailsService() throws Exception {
          InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();
          manager.createUser(User.withDefaultPasswordEncoder().username("root").password("root").roles("administrator").build());
          return manager;
      }
  }

• 3.启动类添加注解@EnableAdminServer

  @SpringBootApplication
  @EnableAdminServer
  public class AdminServerApplication{
  
      public static void main(String[] args) {
          SpringApplication.run(AdminServerApplication.class, args);
      }
  }

• 4.配置application.yml

  server:
    port: 8081
   
  spring:
    boot:
      admin:
        context-path: monitor

• 5.浏览器访问该项目
• 客户端
  • 1.在需要被监控的应用里面添加如下依赖(注意版本号要与server端相同)

    <dependency>
          <groupId>de.codecentric</groupId>
          <artifactId>spring-boot-admin-starter-client</artifactId>
          <version>2.1.1</version>
    </dependency>

  • 2.编辑配置文件（详细属性配置参考手册）

    spring.boot.admin.client.url = http://localhost:8081/admin-server/monitor
    spring.boot.admin.client.username = root
    spring.boot.admin.client.password = root
    spring.boot.admin.client.instance.service-base-url=http://localhost:8080
    spring.boot.admin.client.instance.name = dida
    
    management.endpoints.web.exposure.include = *
    management.endpoint.health.show-details = ALWAYS

• 刷新服务端

问题记录

 　　按照上面的操作，我把公司的一个项目配置成了客户端。在我的win10系统电脑上面运行这两个程序是没有问题的。但是当实际部署在linux服务器上面的时候就遇到了问题：我把springbootAdmin的server端部署到了linux服务器（服务器1），把要监控的项目部署到了另一台Linux服务器（服务器2），这两台服务器处于同一个局域网内。运行这两个项目，发现程序server端能够发现这个我的client项目，但是client项目一直处于断开状态。

 错误日志

WARN  de.codecentric.boot.admin.client.registration.ApplicationRegistrator.register Line:115 - Failed to register application as Application
(name=dida, managementUrl=http://www.xxx.com:8081/dida/actuator, healthUrl=http://www.xxx.com:8081/dida/actuator/health,serviceUrl=http://www.xxx.com:8081/dida)
 at spring-boot-admin ([http://admin.xxx.com:8080/monitor/instances]): 404 null. Further attempts are logged on DEBUG level

经过多次尝试，发现spring.boot.admin.client.url 该项目配置应该配置ip地址 http://172.18.0.188:8080/monitor，而不是域名。

INFO  de.codecentric.boot.admin.client.registration.ApplicationRegistrator.register Line:98 - Application registered itself as 2449779efa06

日志显示注册成功。

待补充 ... ...