Spring Boot项目与Docker集成完成打包，打镜像及推送至镜像库的功能

Spring Boot与Docker集成完成一站式打包到推送至镜像库，减少部署的过程，下面主要来介绍一下，如何集成Docker：

1.在Spring Boot项目的pom.xml文件中做以下配置：

<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<executable>true</executable>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>com.spotify</groupId>
<artifactId>docker-maven-plugin</artifactId>
<version>0.4.11</version>
<configuration>
<imageName>${docker.image.prefix}/${project.artifactId}</imageName>
<image>hub.com/gitlabapi/${docker.image.prefix}/${project.artifactId}</image>
<dockerDirectory>src/main/docker</dockerDirectory>
<resources>
<resource>
<targetPath>/</targetPath>
<directory>${project.build.directory}</directory>
<include>${project.build.finalName}.jar</include>
</resource>
</resources>
</configuration>
</plugin>
</plugins>
</build>

2.在项目中创建一个source folder，名称可以为src/main/docker，在该文件夹中添加Dockerfile文件，内容如下：

FROM hub.com/jre7:1-cqdc
VOLUME /tmp
ADD gitlab-api-1.0.0.jar app.jar
RUN sh -c 'touch /app.jar'
RUN sh -c 'sudo ln -s /app.jar /etc/init.d/gitlabapi'
ENV JAVA_OPTS=""
ENTRYPOINT [ "sh", "-c", "/etc/init.d/gitlabapi start" ]