一、添加maven打包插件
<properties><!-- 依赖版本 --><spring-boot.version>2.3.3.RELEASE</spring-boot.version><!-- 应用所在的启动类 --><mainClass>com.business.BusinessApplication</mainClass><!-- 资源打包插件版本 --><maven-resources-plugin.version>3.1.0</maven-resources-plugin.version>
</properties><build><plugins>...<!-- springBoot 指定主类打包 --><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>${spring-boot.version}</version><executions><execution><goals><goal>repackage</goal></goals></execution></executions><configuration><mainClass>${mainClass}</mainClass><executable>true</executable><fork>true</fork><!--Enable the line below to have remote debugging of your application on port 5005<jvmArguments>-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005</jvmArguments>--></configuration></plugin>...</plugins></build>二、添加docker镜像生成时相关文件
1、编写Dockerfile相关文件
# 这里为基础镜像，就是包含了jdk相关的docker镜像
FROM apline_openjdk8_fonts:latest
# 基本环境参数
ENV SPRING_OUTPUT_ANSI_ENABLED=ALWAYS \APP_SLEEP=0 \JAVA_OPTS="-Dfile.encoding=utf-8"# Add a newuser user to run our application so that it doesn't need to run as root
RUN adduser -D -s /bin/sh newuser
WORKDIR /home/newuser # 授权应用相关启动时的参数环境使用
ADD entrypoint.sh entrypoint.sh
RUN chmod 755 entrypoint.sh && chown newuser:newuser entrypoint.sh
USER newuser # 将jar包添加到docker镜像中并且改名为app.jar
ADD *.jar app.jar# docker启动时 需要执行的脚本
ENTRYPOINT ["./entrypoint.sh"]EXPOSE 12001 5701/udp
2、编写entrypoint.sh脚本
#!/bin/shecho "The application will start in ${APP_SLEEP}s..." && sleep ${APP_SLEEP}
exec java ${JAVA_OPTS} -Djava.security.egd=file:/dev/./urandom -jar "${HOME}/app.jar" "$@"3、在pom中指定需要maven构建时的相关资源
<build><plugins>...<!-- 资源打包插件 --><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>${maven-resources-plugin.version}</version><executions><execution><id>docker-resources</id><phase>validate</phase><goals><goal>copy-resources</goal></goals><configuration><!-- 输出目录 --><outputDirectory>target/</outputDirectory><resources><resource><!-- 资源目录 --><directory>src/main/docker/</directory><filtering>false</filtering><!-- 排除在外的资源 --><excludes><exclude>**/*.yml</exclude></excludes></resource></resources></configuration></execution></executions></plugin>...</plugins></build>三、docker镜像生成，并且上传镜像到镜像仓库，继续为后面自动化部署做铺垫，这里的版本号可以使用时间戳之类的用于自动化部署
docker build -t harbor.cloud.com/test/app:test .
docker login -u admin -p Harbor12345 harbor.cloud.com
docker push harbor.cloud.com/test/app:test