python3 docker_构建Python3+Java8的 Docker 镜像

基于官方Python3镜像来添加Java8环境(参考官方Dockerfile)

Dockerfile内容如下：

#

# NOTE: this docker file is used to build runtime environment.

# The project is a python app which contains a java jar lib.

FROM python:3

MAINTAINER yangpf

# COPY ./requirements.txt /usr/local/src/requirements.txt

RUN set -eux; \

apt-get update; \

apt-get install -y --no-install-recommends \

bzip2 \

unzip \

xz-utils \

\

# utilities for keeping Debian and OpenJDK CA certificates in sync

ca-certificates p11-kit \

# \

# java.lang.UnsatisfiedLinkError: /usr/local/openjdk-11/lib/libfontmanager.so: libfreetype.so.6: cannot open shared object file: No such file or directory

# java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11FontManager

# https://github.com/docker-library/openjdk/pull/235#issuecomment-424466077

fontconfig libfreetype6 \

; \

rm -rf /var/lib/apt/lists/*

# Default to UTF-8 file.encoding

ENV LANG C.UTF-8

ENV JAVA_HOME /usr/local/openjdk-8

ENV PATH $JAVA_HOME/bin:$PATH

# backwards compatibility shim

RUN { echo '#/bin/sh'; echo 'echo "$JAVA_HOME"'; } > /usr/local/bin/docker-java-home && chmod +x /usr/local/bin/docker-java-home && [ "$JAVA_HOME" = "$(docker-java-home)" ]

# https://adoptopenjdk.net/upstream.html

# >

# > What are these binaries?

# >

# > These binaries are built by Red Hat on their infrastructure on behalf of the OpenJDK jdk8u and jdk11u projects. The binaries are created from the unmodified source code at OpenJDK. Although no formal support agreement is provided, please report any bugs you may find to https://bugs.java.com/.

# >

ENV JAVA_VERSION 8u252

ENV JAVA_BASE_URL https://github.com/AdoptOpenJDK/openjdk8-upstream-binaries/releases/download/jdk8u252-b09/OpenJDK8U-jre_

ENV JAVA_URL_VERSION 8u252b09

# https://github.com/dock