使用Maven 插件构建docker 镜像和推送仓库

案例 spring cloud eureka server 构建 docker 镜像 和推送仓库
fox.风

项目 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.foxwho</groupId>    <artifactId>fox-eureka-server</artifactId>    <version>0.0.1-SNAPSHOT</version>    <packaging>jar</packaging>    <name>fox-eureka-server</name>    <description>Demo project for Spring Boot</description>    <parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>2.0.0.BUILD-SNAPSHOT</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>Finchley.BUILD-SNAPSHOT</spring-cloud.version>    </properties>    <dependencies>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-actuator</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-web</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>${spring-cloud.version}</version>                <type>pom</type>                <scope>import</scope>            </dependency>        </dependencies>    </dependencyManagement>    <build>        <plugins>            <plugin>                <groupId>org.springframework.boot</groupId>                <artifactId>spring-boot-maven-plugin</artifactId>            </plugin>            <plugin>                <groupId>com.spotify</groupId>                <artifactId>docker-maven-plugin</artifactId>                <version>1.0.0</version>                <executions>                    <!--执行 mvn package 时 自动 执行 mvn docker:build-->                    <execution>                        <id>build-image</id>                        <phase>package</phase>                        <goals>                            <goal>build</goal>                        </goals>                    </execution>                </executions>                <configuration>                    <!--推送到私有仓库-->                    <!-- <imageName>localhost:5000/fox/fox-eureka-server</imageName> -->                    <!--本地-->                    <imageName>fox/fox-eureka-server</imageName>                    <imageTags>                        <imageTag>0.0.1</imageTag>                        <!--可以指定多个标签-->                        <imageTag>latest</imageTag>                    </imageTags>                    <!--覆盖已存在的标签 镜像-->                    <forceTags>true</forceTags>                    <!--使用pom 配置-->                    <baseImage>java</baseImage>                    <entryPoint>["java","-jar","/${project.build.finalName}.jar"]</entryPoint>                    <!--使用pom 配置 END-->                    <!--使用 Dockerfile-->                    <!--<dockerDirectory>${project.basedir}/src/main/docker</dockerDirectory>-->                    <!--使用 Dockerfile  END-->                    <resources>                        <resource>                            <targetPath>/</targetPath>                            <directory>${project.build.directory}</directory>                            <include>${project.build.finalName}.jar</include>                        </resource>                    </resources>                </configuration>            </plugin>        </plugins>    </build>    <repositories>        <repository>            <id>spring-snapshots</id>            <name>Spring Snapshots</name>            <url>https://repo.spring.io/snapshot</url>            <snapshots>                <enabled>true</enabled>            </snapshots>        </repository>        <repository>            <id>spring-milestones</id>            <name>Spring Milestones</name>            <url>https://repo.spring.io/milestone</url>            <snapshots>                <enabled>false</enabled>            </snapshots>        </repository>    </repositories>    <pluginRepositories>        <pluginRepository>            <id>spring-snapshots</id>            <name>Spring Snapshots</name>            <url>https://repo.spring.io/snapshot</url>            <snapshots>                <enabled>true</enabled>            </snapshots>        </pluginRepository>        <pluginRepository>            <id>spring-milestones</id>            <name>Spring Milestones</name>            <url>https://repo.spring.io/milestone</url>            <snapshots>                <enabled>false</enabled>            </snapshots>        </pluginRepository>    </pluginRepositories></project>

构建命令 及启动docker 镜像

mvn package或mvn clean package

启动docker 镜像

docker run -d -p 1111:1111  fox/fox-eureka-server:0.0.1 --name fox-eureka-server:0.0.1

1111 是 fox-eureka-server 内的端口

其他说明

自动构建docker 镜像配置主要在 plugin中的com.spotify内
说明:

合并构建命令

                    <execution>                        <id>build-image</id>                        <phase>package</phase>                        <goals>                            <goal>build</goal>                        </goals>                    </execution>

此配置 主要是 执行 mvn package 时 自动 执行 mvn docker:build，如果没有此配置那么要执行

mvn pakage docker:build或mvn clean pakage docker:build

同时推送镜像到仓库

推送远程仓库

在MAVEN 的全局配置文件settings.xml加入或修改

<servers><server>    <id>docker-hub</id>    <username>docker Hub 的用户名</username>    <password>docker Hub 的密码</password>    <configuration>        <email>docker Hub 的邮箱</email>    </configuration></server></servers>

接着修改 pom.xml 中的 plugin的com.spotify在configuration元素内增加

<!--就是settings.xml 中 server.id --><serverId>docker-hub</serverId>

执行命令

mvn  clean package -DpushImage

注意：pushImage标识，标识推送镜像标识，没有此标识，则不推送

推送到本地仓库

本地仓库很简单
修改 pom.xml 中的 plugin的com.spotify的configuration.imageName元素增加 本地地址和端口即可
例如：本地 仓库地址及端口为 http://localhsot:5000
原 imageName为

<imageName>fox/fox-eureka-server</imageName>

修改为

<imageName>localhost:5000/fox/fox-eureka-server</imageName>

执行命令

mvn  clean package -DpushImage

注意：pushImage标识，标识推送镜像标识，没有此标识，则不推送

代码地址：https://github.com/foxiswho/example-java-spring-cloud/tree/master/fox-eureka-server

docker compose 编排

修改所有微服务配置eureka.client.serviceUrl.defaultZone (fox-eureka-server除外):

eureka.client.serviceUrl.defaultZone=http://peer1:1111/eureka/,http://peer2:1112/eureka/

注意，以上修改完成后，要重新构建及推送到仓库

docker-compose.yml 文件如下

version : "2"services :    peer1:        image:fox/fox-eureka-server:0.0.1        ports:            - "1111:1111"        environment:            - spring.profiles.active=peer1    peer2:        image:fox/fox-eureka-server:0.0.1        ports:            - "1112:1112"        environment:            - spring.profiles.active=peer2    service-provider:        image:fox/fox-eureka-service-provider:0.0.1    feign-service--consumer:        image:fox/fox-eureka-feign-service-consumer:0.0.1    api-gateway:        image:fox/api-gateway:0.0.1    config-eureka-server:        image:fox/config-eureka-server:0.0.1    config-eureka-client:        image:fox/config-eureka-client:0.0.1    fox-dashboard:        image:fox/fox-dashboard:0.0.1

注意，这里只是一个 docker compose 案例，具体需要开启哪些端口需要 自己去配置

最后执行命令

docker-compose up

打开浏览器 网址 http://localhost:1111 即可看到效果