SpringCloud环境搭建--configServer

阳光穿透心脏的1/2处 2022-05-11 14:58 203阅读 0赞

# 配置中心 #

## 搭建过程 ##

*  1.引入依赖：

<dependencies>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-config-server</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>

*  1.  修改启动类。添加`@EnableConfigServer，@EnableDiscoveryClient`

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

*  1.  修改配置文件,application.yml

spring:
      application:
        name: doraemon-configServer
      profiles:
        active: local
      cloud:
        config:
          server:
            git:
              # 远程仓库地址（需要新建一个仓库，使用项目的仓库也是可以的，但是.......）
              uri: https://gitee.com/fangjiaxiaobai/doraemon-config.git
              # 远程仓库的查找地址
              search-paths: config
          #    username:
          #    password:
          #    远程仓库的分支
          label: local
    server:
      port: ${config_port:8770}
    eureka:
      client:
        service-url:
          defaultZone: http://${eureka_service_url:eureka-peer1:8761}/eureka/

4.然后启动，查看Eureka页面：  
![config注册到了Eureka上][config_Eureka]

## 高可用的配置中心 ##

1.复制两份application.yml，分别命名为：application-prod1.yml,application-prod2.yml  
application-prod1.yml

spring:
      application:
        name: doraemon-configServer
      cloud:
        config:
          server:
            git:
              uri: https://gitee.com/fangjiaxiaobai/doraemon-config.git
              search-paths: config
          label: prod
    server:
      port: ${config_port:8771}
    eureka:
      client:
        service-url:
          defaultZone: http://${eureka_service_url:eureka-peer1:8761}/eureka/

application-prod2.yml:

spring:
      application:
        name: doraemon-configServer
      cloud:
        config:
          server:
            git:
              uri: https://gitee.com/fangjiaxiaobai/doraemon-config.git
              search-paths: config
          label: prod
          discovery:
            service-id: doraemon-configServer
    server:
      port: ${config_port:8772}
    eureka:
      client:
        service-url:
          defaultZone: http://${eureka_service_url:eureka-peer1:8761}/eureka/

然后分别启动两个实例：

java -jar dor-config-0.0.1-SNAPSHOT.jar --spring.profiles.active=prod1
    java -jar dor-config-0.0.1-SNAPSHOT.jar --spring.profiles.active=prod2

然后，查看eureka。就会有两个config实例。

## 集成Bus，实现动态刷新集群配置 ##

在上面的是基础上，修改pom.xml,添加依赖

<dependency>
           <groupId>org.springframework.cloud</groupId>
           <artifactId>spring-cloud-starter-bus-amqp</artifactId>
    </dependency>

也可以使用kafka实现，那样的添加的依赖就是：

<dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-bus-kafka</artifactId>
            </dependency>

修改application-prod1.yml和application-prod2.yml添加rabbitMq（Kafka）的配置：

spring:
      rabbitmq:
        host: ${MQ_IP:10.127.138.75}
        port: ${MQ_PORT:5672}
        username: ${MQ_USERNAME:guest}
        password: ${MQ_PASSWORD:guest}

重新启动即可。

## docker集成 ##

修改pom.xml

<build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
                <plugin>
                    <groupId>com.spotify</groupId>
                    <artifactId>docker-maven-plugin</artifactId>
                    <version>1.0.0</version>
                    <configuration>
                        
                        <imageName>${project.artifactId}:${project.version}</imageName>
                        
                        <dockerDirectory>src/main/docker</dockerDirectory>
                        <forceTags>true</forceTags>
                        
                        
                        
                        
                        <resources>
                            <resource>
                                <targetPath>/</targetPath>
                                
                                <directory>${project.build.directory}</directory>
                                
                                <include>${project.build.finalName}.jar</include>
                            </resource>
                        </resources>
                    </configuration>
                </plugin>
            </plugins>
        </build>

在src/main/docker下新建Dockerfile：

FROM frolvlad/alpine-oraclejdk8:slim
    VOLUME /tmp
    ADD dor-config-0.0.1-SNAPSHOT.jar app.jar
    RUN chmod 755 /app.jar
    EXPOSE 8771
    ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"

这个还是同上一篇Eureka的搭建一样，可以编译镜像的过程放到pom中。

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![在这里插入图片描述][20190901123112370.jpg]

[config_Eureka]: /images/20220505/b35bc25d2bc54e259a5e9ccb9a255ecb.png
[20190901123112370.jpg]: https://img-blog.csdnimg.cn/20190901123112370.jpg