基于alpine构建jdk镜像遇到的坑
alpine
常用于作为docker
的基础镜像,因为它很小,功能精简,基本上没有啥漏洞,记录一下最近用alpine
作为基础镜像构建java 8
镜像 下面的问题在oracle jdk
openjdk
都会出现 。
错误一
java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11FontManager
这个错误一般出现在生成验证码绘制的时候,这个错误大概原因就是由于在alpine
上太过于精简了,导致初始化FontManagerFactory
工厂初始化失败,那么解决办法就是安装glibc
。
网上有很多博主都只讲安装了glib.apk
核心包就行,其实这里需要安装3个包 以2.3.0
为例 需要安装的包为
- https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-2.30-r0.apk
- https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-bin-2.30-r0.apk
- https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-i18n-2.30-r0.apk
安装命令如下
apk --no-cache add libstdc++ ca-certificates bash wget wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-2.30-r0.apk wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-bin-2.30-r0.apk wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-i18n-2.30-r0.apk apk add glibc-2.30-r0.apk && apk add glibc-bin-2.30-r0.apk && apk add glibc-i18n-2.30-r0.apk
安装完后就没有问题了,测试方法 可以写一个main方法在容器中验证是否能执行通过Class.forName("sun.awt.X11FontManager");
,当在验证码不可行环境的时候 报错的消息为
/usr/local/jdk1.8.0_301/jre/lib/amd64/libfontmanager.so: libgcc_s.so.1: cann......
。
还有就是可以进入在运行中的容器直接安装 安装完成了之后基本上就没有问题了。
错误二
该错误在openJDK中出现过,OracleJDK没有出现。
error while loading shared libraries: libz.so.1: cannot open shared object file:
解决方式就安装zlib 安装命令如下
curl -Ls https://archive.archlinux.org/packages/z/zlib/zlib-1%3A1.2.9-1-x86_64.pkg.tar.xz -o libz.tar.xz && mkdir -p libz && tar -xf libz.tar.xz -C libz mv libz/usr/lib/libz.so* /usr/glibc-compat/lib rm -rf libz.tar.xz
安装好后 没有问题了
dragonwell openjdk Dockerfile
另贴上基于alpine
的阿里dragonwell openjdk
的Dockerfile
dragonwell JDK Dockerfile
FROM alpine:3.8 LABEL maintainer="xstao" ENV TZ=Asia/Shanghai RUN ln -snf /usr/share/zoneinfo/${TZ} /etc/localtime && \ echo ${TZ} > /etc/timezone #mirrons aliun RUN echo http://mirrors.aliyun.com/alpine/v3.10/main/ > /etc/apk/repositories && \ echo http://mirrors.aliyun.com/alpine/v3.10/community/ >> /etc/apk/repositories RUN apk update && apk upgrade #install glibc RUN apk --no-cache add libstdc++ ca-certificates bash wget curl && \ wget -q -O /etc/apk/keys/sgerrand.rsa.pub https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub && \ wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-2.30-r0.apk && \ wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-bin-2.30-r0.apk && \ wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.30-r0/glibc-i18n-2.30-r0.apk && \ apk add glibc-2.30-r0.apk && apk add glibc-bin-2.30-r0.apk && apk add glibc-i18n-2.30-r0.apk && \ curl -Ls https://archive.archlinux.org/packages/z/zlib/zlib-1%3A1.2.9-1-x86_64.pkg.tar.xz -o libz.tar.xz && mkdir -p libz && tar -xf libz.tar.xz -C libz && \ mv libz/usr/lib/libz.so* /usr/glibc-compat/lib && \ rm glibc-2.30-r0.apk && rm glibc-bin-2.30-r0.apk && rm glibc-i18n-2.30-r0.apk && rm -rf /var/cache/apk/* && rm -rf libz/* && rm -rf libz.tar.xz RUN apk add --update font-adobe-100dpi ttf-dejavu fontconfig ENV JAVA_VERSION="jdk8u302-b01" ENV JAVA_HOME="/usr/local/${JAVA_VERSION}" ENV PATH="${JAVA_HOME}/bin:${PATH}" # WORKDIR /opt RUN wget https://dragonwell.oss-cn-shanghai.aliyuncs.com/8.8.9/Alibaba_Dragonwell_8.8.9_x64_linux.tar.gz RUN tar -zxf Alibaba_Dragonwell_8.8.9_x64_linux.tar.gz RUN mv ${JAVA_VERSION} /usr/local RUN rm -rf Alibaba_Dragonwell_8.8.9_x64_linux.tar.gz
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作者:peachyy
出处:http://www.cnblogs.com/peachyy/
出处:https://peachyy.gitee.io/
出处:https://peachyy.github.io/
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