docker容器通过alpine 配置jdk与jar打包镜像方法

FROM  alpine
RUN sed -i "s@https://dl-cdn.alpinelinux.org/@https://repo.huaweicloud.com/@g" /etc/apk/repositories \
    && apk add --no-cache tzdata \
    && ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
    && echo "Asia/Shanghai" > /etc/timezone
WORKDIR /opt
ADD datagear-3.2.0.zip /opt
RUN unzip datagear-3.2.0.zip && rm -rf datagear-3.2.0.zip \
&&  apk --no-cache add openjdk8-jre-base
ENV JAVA_HOME=/usr/lib/jvm/default-jvm
ENV DataGearWorkspace=/opt/data
ENV PATH=$JAVA_HOME/bin:$PATH
ENV CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tool.jar
VOLUME /opt
EXPOSE 50401
CMD ["java","-jar","datagear-3.2.0/datagear-3.2.0.jar"]