Maven的Docker插件绑定在某个phase执行

落日映苍穹つ 2021-06-22 15:36 174阅读 0赞

一 场景  
某些场景下，有这样的需求，执行例如mvn clean package时，插件就自动构建Docker镜像。要想实现这点，只须将插件的goal绑定在某个phase即可。  
phase和goal可以这样理解  
maven 命令格式是：mvn phase:goal，例如mvn package docker:build。那么，package和docker都是phase，build则是goal。  
二 修改pom.xml

[root@master microservice-discovery-eureka]# cat 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/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.itmuch.cloud</groupId>
      <artifactId>microservice-discovery-eureka</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      <packaging>jar</packaging>
     
      
      <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.2.RELEASE</version>
      </parent>
     
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
      </properties>
     
      <dependencies>
        <dependency>
          <groupId>org.springframework.cloud</groupId>
          <artifactId>spring-cloud-starter-eureka-server</artifactId>
        </dependency>
      </dependencies>
     
      
      <dependencyManagement>
        <dependencies>
          <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-dependencies</artifactId>
            <version>Camden.SR2</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>0.4.13</version>
            <executions>
              <execution>
                <id>build-image</id>
                <phase>package</phase>
                <goals>
                  <goal>build</goal>
                </goals>
              </execution>
            </executions>
            <configuration>
              <imageName>itmuch/microservice-discovery-eureka:0.0.3</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>
        </plugins>
      </build>
    </project>

由配置可知，只须添加如下配置：

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

就可将插件绑定在package这个phase上。也就是说，用户只须执行mvn package，就会自动执行mvn docker:build。  
三 执行如下命令，构建Docker镜像

[root@master microservice-discovery-eureka]# mvn clean package
    [root@master microservice-discovery-eureka]# docker images
    REPOSITORY                                    TAG                 IMAGE ID            CREATED             SIZE
    itmuch/microservice-discovery-eureka          0.0.3               79a4b2221633        27 seconds ago      685MB

四 启动镜像

[root@master microservice-discovery-eureka]# docker run -d -p 8761:8761 itmuch/microservice-discovery-eureka:0.0.3
    46ff4e4e5d11f2843075790a2ae3a2f03a6f0f56cd6b19bb305d550646d0ab75

五 测试  
http://192.168.0.102:8761/