<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
			<!-- tag::plugin[] -->
			<plugin>
				<groupId>com.spotify</groupId>
				<artifactId>docker-maven-plugin</artifactId>
				<version>1.0.0</version>
				<configuration>
					<imageName>${docker.image.prefix}/${project.artifactId}</imageName>
					<baseImage>java</baseImage>
					<entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
					<resources>
						<resource>
							<targetPath>/</targetPath>
							<directory>${project.build.directory}</directory>
							<include>${project.build.finalName}.jar</include>
						</resource>
					</resources>
				</configuration>
			</plugin>
			<!-- end::plugin[] -->
		</plugins>
	</build>
 

      · resources是指那些需要和Dockerfile放在一起，在構建映象時使用的檔案，一般應用 jar 包需要納入。resources.resource.directory用於指定需要複製的根目錄，${project.build.directory}表示target目錄，resources.resource.include用於指定需要複製的檔案，${project.build.finalName}.jar指的是打包後的jar包檔案。

server.port=8761

eureka.instance.prefer-ip-address=true
# 代表不向註冊中心註冊自己
eureka.client.register-with-eureka=false
# 由於註冊中心的職責就是維護服務例項，它並不需要去檢索服務，所以設定為false
eureka.client.fetch-registry=false
 

mvn clean package docker:build

spring.application.name=hello-service
# host改為映象名
eureka.client.serviceUrl.defaultZone=http://eureka-server:8761/eureka
server.port=8763
eureka.instance.prefer-ip-address=true
eureka.instance.instance-id=${spring.application.name}:${random.int}

mvn clean package docker:build
 

# 啟動伺服器
docker run --name eureka-server -p 8761:8761 -t dan/eureka-server 
# 註冊服務
docker run --link eureka-server:8761 -p 8763:8763 -t dan/eureka-client 

version: '3'
services:
  eureka-server:
    image: dan/eureka-server
    ports:
      - "8761:8761"

  hello-service:
    image: dan/eureka-client
    ports:
      - 8763
    links:
      - eureka-server

  service-ribbon:
    image: dan/service-ribbon
    ports:
      - "8764:8764"
    links:
      - eureka-server 

  service-feign:
    image: dan/service-feign
    ports:
      - "8765:8765"
    links:
      - eureka-server

  service-zuul:
    image: dan/service-zuul
    ports:
      - "8769:8769"
    links:
      - eureka-server 

docker-compose up

      如果要增加或減少docker例項，直接使用docker-compose scale hello-service=3修改例項數；停止執行則使用docker-compose stop即可。