Docker Maven插件的使用

docker maven插件使用首先要docker可以远程访问

1. 修改宿主机的docker配置，让其支持远程访问。

vi /lib/systemd/system/docker.service
其中ExecStart=后添加配置-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock

修改过如下图：

systemctl daemon-reload
systemctl restart docker

3. 在项目pom中加入docker的maven插件支持

     <build>
        <finalName>app</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <!-- docker的maven插件，官网：https://github.com/spotify/docker-maven-plugin -->
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>0.4.13</version>
                <configuration>
               <imageName>192.168.188.188:5000/${project.artifactId}:${project.version}</imageName>
                    <baseImage>java8</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>
                    <dockerHost>http://192.168.188.188:2375</dockerHost>
                </configuration>
            </plugin>
        </plugins>
    </build>

以上配置会自动生成Dockerfile

FROM java8
ADD app.jar /
ENTRYPOINT ["java","-jar","/app.jar"]