Java最小化鏡像製做

下載Oracle官網的JRE包，最終下載的包以下：

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

解壓JRE包並刪除沒必要要的文件

#解壓

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

#進入目錄

cd jre1.8.0_181/

#刪除文本文件

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

#刪除其餘無用文件

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

從新打包JRE目錄下的全部文件

tar zcvf jre8. tar .gz *

建立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

構建鏡像

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