Permalink
Switch branches/tags
Nothing to show
Find file Copy path
74 lines (63 sloc) 2.44 KB
#
# NOTE: THIS DOCKERFILE IS GENERATED VIA "update.sh"
#
# PLEASE DO NOT EDIT IT DIRECTLY.
#
FROM debian:sid-slim
# A few reasons for installing distribution-provided OpenJDK:
#
# 1. Oracle. Licensing prevents us from redistributing the official JDK.
#
# 2. Compiling OpenJDK also requires the JDK to be installed, and it gets
# really hairy.
#
# For some sample build times, see Debian's buildd logs:
# https://buildd.debian.org/status/logs.php?pkg=openjdk-11
RUN apt-get update && apt-get install -y --no-install-recommends \
bzip2 \
unzip \
xz-utils \
&& rm -rf /var/lib/apt/lists/*
# Default to UTF-8 file.encoding
ENV LANG C.UTF-8
# add a simple script that can auto-detect the appropriate JAVA_HOME value
# based on whether the JDK or only the JRE is installed
RUN { \
echo '#!/bin/sh'; \
echo 'set -e'; \
echo; \
echo 'dirname "$(dirname "$(readlink -f "$(which javac || which java)")")"'; \
} > /usr/local/bin/docker-java-home \
&& chmod +x /usr/local/bin/docker-java-home
# do some fancy footwork to create a JAVA_HOME that's cross-architecture-safe
RUN ln -svT "/usr/lib/jvm/java-11-openjdk-$(dpkg --print-architecture)" /docker-java-home
ENV JAVA_HOME /docker-java-home
ENV JAVA_VERSION 11.0.1
ENV JAVA_DEBIAN_VERSION 11.0.1+13-3
RUN set -ex; \
\
# deal with slim variants not having man page directories (which causes "update-alternatives" to fail)
if [ ! -d /usr/share/man/man1 ]; then \
mkdir -p /usr/share/man/man1; \
fi; \
\
apt-get update; \
apt-get install -y --no-install-recommends \
openjdk-11-jdk-headless="$JAVA_DEBIAN_VERSION" \
; \
rm -rf /var/lib/apt/lists/*; \
\
# verify that "docker-java-home" returns what we expect
[ "$(readlink -f "$JAVA_HOME")" = "$(docker-java-home)" ]; \
\
# update-alternatives so that future installs of other OpenJDK versions don't change /usr/bin/java
update-alternatives --get-selections | awk -v home="$(readlink -f "$JAVA_HOME")" 'index($3, home) == 1 { $2 = "manual"; print | "update-alternatives --set-selections" }'; \
# ... and verify that it actually worked for one of the alternatives we care about
update-alternatives --query java | grep -q 'Status: manual'
# https://docs.oracle.com/javase/10/tools/jshell.htm
# https://en.wikipedia.org/wiki/JShell
CMD ["jshell"]
# If you're reading this and have any feedback on how this image could be
# improved, please open an issue or a pull request so we can discuss it!
#
# https://github.com/docker-library/openjdk/issues