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LHGtihub
dockerProject-JDK
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#指定基础镜像
FROM ubuntu
#作者
MAINTAINER LH
#指定字符集很重要
ENV LANG C.UTF-8
#执行命令
RUN apt-get update
RUN apt-get install vim -y
RUN mkdir -p /home/jdk
#切换工作目录
WORKDIR /home/jdk
#容器打开指定要监听的端口以实现和外部通信
EXPOSE 22
#添加文件,ADD指令会将文件自动解压
#如果项目在运行时不要jdk编译成class文件,则可以打jre运行镜像,jre比jdk要小很多
ADD ./jdk-8u144-linux-x64.tar.gz /home/jdk
#配置环境变量
RUN echo JRE_HOME=/home/jdk/jdk1.8.0_144 >> /etc/environment
RUN echo CLASSPATH=$JAVA_HOME/lib >> /etc/environment
RUN echo PATH=$JAVA_HOME/bin >> /etc/environment
RUN update-alternatives --install /usr/bin/java java /home/jdk/jdk1.8.0_144/bin/java 300
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