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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