截至 2019 年 7 月
(注意：第一阶段图像可以像您希望的那样胖：可以使用 debian/ubuntu/whatever 并包括 git/gradle/whatever - 这不会' t 影响最终生成的图像大小，这完全基于最后（第二）阶段）
FROM alpine:latest as packager
RUN apk --no-cache add openjdk11-jdk openjdk11-jmods
ENV JAVA_MINIMAL="/opt/java-minimal"
# build minimal JRE
RUN /usr/lib/jvm/java-11-openjdk/bin/jlink \
--verbose \
--add-modules \
java.base,java.sql,java.naming,java.desktop,java.management,java.security.jgss,java.instrument \
--compress 2 --strip-debug --no-header-files --no-man-pages \
--release-info="add:IMPLEMENTOR=radistao:IMPLEMENTOR_VERSION=radistao_JRE" \
--output "$JAVA_MINIMAL"
FROM alpine:latest
ENV JAVA_HOME=/opt/java-minimal
ENV PATH="$PATH:$JAVA_HOME/bin"
COPY --from=packager "$JAVA_HOME" "$JAVA_HOME"
COPY build/libs/application.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]
FROM adoptopenjdk/openjdk11:x86_64-alpine-jdk-11.0.4_11 as packager
ENV JAVA_MINIMAL="/opt/java-minimal"
# build minimal JRE
RUN jlink \
--verbose \
--add-modules \
java.base,java.sql,java.naming,java.desktop,java.management,java.security.jgss,java.instrument \
--compress 2 --strip-debug --no-header-files --no-man-pages \
--output "$JAVA_MINIMAL"
FROM alpine:latest
# magic to make Java binaries work in Alpine
# https://github.com/AdoptOpenJDK/openjdk-docker/blob/master/11/jdk/alpine/Dockerfile.hotspot.releases.slim#L24-L54
RUN apk add --no-cache --virtual .build-deps curl binutils \
&& GLIBC_VER="2.29-r0" \
&& ALPINE_GLIBC_REPO="https://github.com/sgerrand/alpine-pkg-glibc/releases/download" \
&& GCC_LIBS_URL="https://archive.archlinux.org/packages/g/gcc-libs/gcc-libs-9.1.0-2-x86_64.pkg.tar.xz" \
&& GCC_LIBS_SHA256="91dba90f3c20d32fcf7f1dbe91523653018aa0b8d2230b00f822f6722804cf08" \
&& ZLIB_URL="https://archive.archlinux.org/packages/z/zlib/zlib-1%3A1.2.11-3-x86_64.pkg.tar.xz" \
&& ZLIB_SHA256=17aede0b9f8baa789c5aa3f358fbf8c68a5f1228c5e6cba1a5dd34102ef4d4e5 \
&& curl -LfsS https://alpine-pkgs.sgerrand.com/sgerrand.rsa.pub -o /etc/apk/keys/sgerrand.rsa.pub \
&& SGERRAND_RSA_SHA256="823b54589c93b02497f1ba4dc622eaef9c813e6b0f0ebbb2f771e32adf9f4ef2" \
&& echo "${SGERRAND_RSA_SHA256} */etc/apk/keys/sgerrand.rsa.pub" | sha256sum -c - \
&& curl -LfsS ${ALPINE_GLIBC_REPO}/${GLIBC_VER}/glibc-${GLIBC_VER}.apk > /tmp/glibc-${GLIBC_VER}.apk \
&& apk add /tmp/glibc-${GLIBC_VER}.apk \
&& curl -LfsS ${ALPINE_GLIBC_REPO}/${GLIBC_VER}/glibc-bin-${GLIBC_VER}.apk > /tmp/glibc-bin-${GLIBC_VER}.apk \
&& apk add /tmp/glibc-bin-${GLIBC_VER}.apk \
&& curl -Ls ${ALPINE_GLIBC_REPO}/${GLIBC_VER}/glibc-i18n-${GLIBC_VER}.apk > /tmp/glibc-i18n-${GLIBC_VER}.apk \
&& apk add /tmp/glibc-i18n-${GLIBC_VER}.apk \
&& /usr/glibc-compat/bin/localedef --force --inputfile POSIX --charmap UTF-8 "$LANG" || true \
&& echo "export LANG=$LANG" > /etc/profile.d/locale.sh \
&& curl -LfsS ${GCC_LIBS_URL} -o /tmp/gcc-libs.tar.xz \
&& echo "${GCC_LIBS_SHA256} */tmp/gcc-libs.tar.xz" | sha256sum -c - \
&& mkdir /tmp/gcc \
&& tar -xf /tmp/gcc-libs.tar.xz -C /tmp/gcc \
&& mv /tmp/gcc/usr/lib/libgcc* /tmp/gcc/usr/lib/libstdc++* /usr/glibc-compat/lib \
&& strip /usr/glibc-compat/lib/libgcc_s.so.* /usr/glibc-compat/lib/libstdc++.so* \
&& curl -LfsS ${ZLIB_URL} -o /tmp/libz.tar.xz \
&& echo "${ZLIB_SHA256} */tmp/libz.tar.xz" | sha256sum -c - \
&& mkdir /tmp/libz \
&& tar -xf /tmp/libz.tar.xz -C /tmp/libz \
&& mv /tmp/libz/usr/lib/libz.so* /usr/glibc-compat/lib \
&& apk del --purge .build-deps glibc-i18n \
&& rm -rf /tmp/*.apk /tmp/gcc /tmp/gcc-libs.tar.xz /tmp/libz /tmp/libz.tar.xz /var/cache/apk/*
ENV JAVA_HOME=/opt/java-minimal
ENV PATH="$PATH:$JAVA_HOME/bin"
COPY --from=packager "$JAVA_HOME" "$JAVA_HOME"
COPY build/libs/application.jar app.jar
ENTRYPOINT ["java","-jar","/app.jar"]
另请阅读https://blog.gilliard.lol/2018/11/05/alpine-jdk11-images.html