【微服务】- SpringBoot Admin

2020-02-05 本文已影响0人 lconcise

目录：

搭建SpringBoot Admin
- 搭建SpringBoot Admin Server
- 搭建SpringBoot Admin Client
SpringBoot Admin 结合Eureka注册中心使用
- 搭建Eureka注册中心
- 搭建admin-server
- 搭建admin-client

Spring Boot Admin 用于管理和监控一个或者多个Spring Boot应用， Spring Boot Admin 分为Server端和Client端，Client通过http向Server端注册，也可以结合Spring Cloud 的服务注册组件Eureka 进行注册。

SpringAdmin 的监测详细信息有如下：

显示健康状况
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系统和环境属性
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跟踪
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）

本文的所有工程的Spring Boot版本为2.2.2.RELEASE，SpringBootAdmin版本为2.2.1。

搭建Spring Boot Admin

搭建Spring Boot Admin Server

工程依赖如下：web，admin-server

  <properties>
        <java.version>1.8</java.version>
        <spring-boot-admin.version>2.2.1</spring-boot-admin.version>
    </properties>

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

在工程的启动类AdminServerApplication加上@EnableAdminServer注解，开启AdminServer的功能

@SpringBootApplication
@EnableAdminServer
public class AdminServerApplication {

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

}

在工程的配置文件application.yml中配置程序名和程序的端口，代码如下：

spring:
  application:
    name: admin-server
server:
  port: 8769

这样Admin Server就创建好了。

创建Spring Boot Admin Client

工程依赖如下：web，admin-client

    <properties>
        <java.version>1.8</java.version>
        <spring-boot-admin.version>2.2.1</spring-boot-admin.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

配置文件application.yml中配置应用名和端口信息，以及向admin-server注册的地址为http://localhost:8769，最后暴露自己的actuator的所有端口信息，具体配置如下：

spring:
  application:
    name: admin-client
  boot:
    admin:
      client:
        url: http://localhost:8769
server:
  port: 8768

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

项目启动文件如下：

@SpringBootApplication
public class AdminClientApplication {

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

到此，SpringBoot-Admin-Client 工程创建完成。

启动Admin-Server，Admin-Client两个工程，在浏览器上输入localhost:8769 ，浏览器显示的界面如下：

image.png

查看wallboard：

image.png
点击wallboard，可以查看admin-client具体的信息，比如内存状态信息：

image.png

更多监控信息，自己体验。

SpringBoot Admin 结合Eureka注册中心使用

搭建Eureka注册中心

工程依赖如下：eureka-server

    <properties>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </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>

配置eureka-server的端口信息，以及defaultZone和防止自注册。最后系统暴露eureka-server的actuator的所有端口。

spring:
  application:
    name: eureka-server
server:
  port: 8761

eureka:
  client:
    service-url:
      defaultZone: http://localhost:8761/eureka
    register-with-eureka: false
    fetch-registry: false
    
management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: always

在工程的启动文件EurekaServerApplication 加上@EnableEurekaServer注解开启Eureka Server.

@SpringBootApplication
@EnableEurekaServer
public class EurekaServerApplication {

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

eureka-server搭建完毕。

搭建admin-server

工程的依赖如下：web，admin-server，eureka-client

    <properties>
        <java.version>1.8</java.version>
        <spring-boot-admin.version>2.2.1</spring-boot-admin.version>
        <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
    </properties>

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

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

配置：配置admin-server的应用名、端口信息。并向注册中心注册，注册地址为http://localhost:8761，最后将actuator的所有端口暴露出来，配置如下：

spring:
  application:
    name: admin-server
server:
  port: 8769

eureka:
  client:
    service-url:
      defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/
  instance:
    leaseRenewalIntervalInSeconds: 10

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

在工程的启动类AdminServerApplication 加上@EnableAdminServer注解，开启admin server的功能，加上@EnableDiscoveryClient注解开启eurke client的功能。

@SpringBootApplication
@EnableAdminServer
@EnableDiscoveryClient
public class AdminServerApplication {

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

}

到此admin-server 搭建完成。

搭建admin-client

工程的依赖如下：web，admin-client，eureka-client

    <properties>
        <java.version>1.8</java.version>
        <spring-boot-admin.version>2.2.1</spring-boot-admin.version>
        <spring-cloud.version>Hoxton.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</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>
    </dependencies>

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

在工程的配置文件配置应用名、端口、向注册中心注册的地址，以及暴露actuator的所有端口。

spring:
  application:
    name: admin-client
server:
  port: 8762
  
eureka:
  instance:
    lease-renewal-interval-in-seconds: 10
   # health-check-url-path: /actuator/health

  client:
    registry-fetch-interval-seconds: 5
    service-url:
      defaultZone: ${EUREKA_SERVICE_URL:http://localhost:8761}/eureka/

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

在启动类加上@EnableDiscoveryClient注解，开启DiscoveryClient的功能。

@SpringBootApplication
@EnableDiscoveryClient
public class AdminClientApplication {

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

到此，Eureka-Server,Admin-Server-Eureka-Client，Admin-Client-Eureka-Cleint 三个工程搭建完成

启动三个工程，在浏览器上访问localhost:8769，浏览器会显示和上一小节一样的界面。

image.png

Admin-Server集成spring security

在2.1.0版本中去掉了hystrix dashboard，登录界面默认集成到了spring security模块，只要加上spring security就集成了登录模块。

只需要改变下admin-server工程，需要在admin-server工程的pom文件引入以下的依赖：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

在admin-server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：

spring:
  security:
    user:
      name: "admin"
      password: "admin"
      
eureka:
  instance:
    metadata-map:
      user.name: ${spring.security.user.name}
      user.password: ${spring.security.user.password}

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

@Configuration
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {

    private final String adminContextPath;

    public SpringSecurityConfig(AdminServerProperties adminServerProperties) {
        this.adminContextPath = adminServerProperties.getContextPath();
    }

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

        http.authorizeRequests()
                .antMatchers(adminContextPath + "/assets/**").permitAll()
                .antMatchers(adminContextPath + "/login").permitAll()
                .antMatchers("/systemConfig/**").permitAll()
                .antMatchers("/serveConfig/**").permitAll()
//                .antMatchers("/admin/instances/*/actuator/metrics/process.uptime").permitAll()
                .antMatchers("/admin/instances/*/actuator/**").permitAll()
                .anyRequest().authenticated()
                .and()
                .formLogin().loginPage(adminContextPath + "/login").successHandler(successHandler).and()
                .logout().logoutUrl(adminContextPath + "/logout").and()
                .httpBasic().and()
                .csrf().disable();
    }
}

重启启动工程，在浏览器上访问：http://localhost:8769/，会被重定向到登录界面，登录的用户名和密码为配置文件中配置的，分别为admin和admin，界面显示如下：

image.png

源码：https://github.com/lbshold/springboot/tree/master/Spring-Boot-Admin-Demo

【微服务】- SpringBoot Admin

搭建Spring Boot Admin

搭建Spring Boot Admin Server

创建Spring Boot Admin Client

SpringBoot Admin 结合Eureka注册中心使用

搭建Eureka注册中心

搭建admin-server

搭建admin-client

Admin-Server集成spring security

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