Java最小化镜像制作

下载Oracle官网的JRE包，最终下载的包如下：

jre-8u181-linux-x64.tar.gz

解压JRE包并删除不必要的文件

#解压

tar xf jre-8u181-linux-x64.tar.gz

#进入目录

cd jre1.8.0_181/

#删除文本文件

rm -rf COPYRIGHT LICENSE README release THIRDPARTYLICENSEREADME-JAVAFX.txt THIRDPARTYLICENSEREADME.txt Welcome.html

#删除其他无用文件

rm -rf   lib/plugin.jar \

         lib/ext/jfxrt.jar \

         bin/javaws \

         lib/javaws.jar \

         lib/desktop \

         plugin \

         lib/deploy* \

         lib/*javafx* \

         lib/*jfx* \

         lib/amd64/libdecora_sse.so \

         lib/amd64/libprism_*.so \

         lib/amd64/libfxplugins.so \

         lib/amd64/libglass.so \

         lib/amd64/libgstreamer-lite.so \

         lib/amd64/libjavafx*.so \

         lib/amd64/libjfx*.so

重新打包JRE目录下的所有文件

tar zcvf jre8.tar.gz *

创建Dockerfile

FROM frolvlad/alpine-glibc

 

MAINTAINER baoyu

 

RUN  echo 'https://mirrors.ustc.edu.cn/alpine/latest-stable/main' > /etc/apk/repositories \

&& echo 'https://mirrors.ustc.edu.cn/alpine/latest-stable/community' >>/etc/apk/repositories \

&& apk update && apk --no-cache add tzdata \

&& ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \

&& echo "Asia/Shanghai" > /etc/timezone

 

RUN mkdir /usr/local/dlfc_service

WORKDIR /usr/local/dlfc_service

 

ADD jre8.tar.gz /usr/java/jdk/

 

ENV JAVA_HOME /usr/java/jdk

ENV PATH $PATH:$JAVA_HOME/bin

构建镜像

docker build -t reg.mystack.com/k8s/alpine-java:v1 .