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Add a few simple Python 3 templates based on existing Dockerfiles
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‎Dockerfile-alpine.template‎

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FROM alpine:3.4
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# ensure local python is used over alpine python
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ENV PATH /usr/local/bin:$PATH
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# http://bugs.python.org/issue19846
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# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
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ENV LANG C.UTF-8
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# install ca-certificates so that HTTPS works consistently
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# the other runtime dependencies for Python are installed later
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RUN apk add --no-cache ca-certificates
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ENV GPG_KEY %%PLACEHOLDER%%
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ENV PYTHON_VERSION %%PLACEHOLDER%%
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# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
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ENV PYTHON_PIP_VERSION %%PLACEHOLDER%%
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RUN set -ex \
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&& apk add --no-cache --virtual .fetch-deps \
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gnupg \
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openssl \
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tar \
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xz \
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\
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&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
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&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
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&& export GNUPGHOME="$(mktemp -d)" \
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&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
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&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
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&& rm -r "$GNUPGHOME" python.tar.xz.asc \
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&& mkdir -p /usr/src/python \
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&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
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&& rm python.tar.xz \
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\
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&& apk add --no-cache --virtual .build-deps \
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bzip2-dev \
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gcc \
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libc-dev \
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linux-headers \
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make \
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ncurses-dev \
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openssl \
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openssl-dev \
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pax-utils \
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readline-dev \
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sqlite-dev \
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tcl-dev \
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tk \
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tk-dev \
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xz-dev \
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zlib-dev \
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# add build deps before removing fetch deps in case there's overlap
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&& apk del .fetch-deps \
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\
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&& cd /usr/src/python \
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&& ./configure \
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--enable-loadable-sqlite-extensions \
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--enable-shared \
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&& make -j$(getconf _NPROCESSORS_ONLN) \
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&& make install \
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\
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# explicit path to "pip3" to ensure Debian "pip3" cannot interfere
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&& if [ ! -e /usr/local/bin/pip3 ]; then : \
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&& wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
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&& python3 /tmp/get-pip.py "pip==$PYTHON_PIP_VERSION" \
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&& rm /tmp/get-pip.py \
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; fi \
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&& pip3 install --no-cache-dir --upgrade "pip==$PYTHON_PIP_VERSION" \
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&& [ "$(pip list |tac|tac| awk -F '[ ()]+' '$1 == "pip" { print $2; exit }')" = "$PYTHON_PIP_VERSION" ] \
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\
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&& find /usr/local -depth \
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\( \
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\( -type d -a -name test -o -name tests \) \
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-o \
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\( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
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\) -exec rm -rf '{}' + \
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&& runDeps="$( \
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scanelf --needed --nobanner --recursive /usr/local \
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| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
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| sort -u \
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| xargs -r apk info --installed \
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| sort -u \
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)" \
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&& apk add --virtual .python-rundeps $runDeps \
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&& apk del .build-deps \
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&& rm -rf /usr/src/python ~/.cache
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# make some useful symlinks that are expected to exist
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RUN cd /usr/local/bin \
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&& { [ -e easy_install ] || ln -s easy_install-* easy_install; } \
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&& ln -s idle3 idle \
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&& ln -s pydoc3 pydoc \
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&& ln -s python3 python \
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&& ln -s python3-config python-config
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CMD ["python3"]

‎Dockerfile-debian.template‎

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FROM buildpack-deps:jessie
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# ensure local python is used over debian python
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ENV PATH /usr/local/bin:$PATH
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# http://bugs.python.org/issue19846
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# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
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ENV LANG C.UTF-8
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# runtime dependencies
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RUN apt-get update && apt-get install -y --no-install-recommends \
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tcl \
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tk \
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&& rm -rf /var/lib/apt/lists/*
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ENV GPG_KEY %%PLACEHOLDER%%
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ENV PYTHON_VERSION %%PLACEHOLDER%%
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# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
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ENV PYTHON_PIP_VERSION %%PLACEHOLDER%%
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RUN set -ex \
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&& buildDeps=' \
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tcl-dev \
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tk-dev \
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' \
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&& apt-get update && apt-get install -y $buildDeps --no-install-recommends && rm -rf /var/lib/apt/lists/* \
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\
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&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
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&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
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&& export GNUPGHOME="$(mktemp -d)" \
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&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
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&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
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&& rm -r "$GNUPGHOME" python.tar.xz.asc \
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&& mkdir -p /usr/src/python \
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&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
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&& rm python.tar.xz \
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\
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&& cd /usr/src/python \
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&& ./configure \
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--enable-loadable-sqlite-extensions \
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--enable-shared \
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&& make -j$(nproc) \
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&& make install \
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&& ldconfig \
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\
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# explicit path to "pip3" to ensure Debian "pip3" cannot interfere
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&& if [ ! -e /usr/local/bin/pip3 ]; then : \
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&& wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
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&& python3 /tmp/get-pip.py "pip==$PYTHON_PIP_VERSION" \
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&& rm /tmp/get-pip.py \
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; fi \
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&& pip3 install --no-cache-dir --upgrade "pip==$PYTHON_PIP_VERSION" \
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&& [ "$(pip list |tac|tac| awk -F '[ ()]+' '$1 == "pip" { print $2; exit }')" = "$PYTHON_PIP_VERSION" ] \
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\
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&& find /usr/local -depth \
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\( \
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\( -type d -a -name test -o -name tests \) \
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-o \
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\( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
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\) -exec rm -rf '{}' + \
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&& apt-get purge -y --auto-remove $buildDeps \
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&& rm -rf /usr/src/python ~/.cache
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# make some useful symlinks that are expected to exist
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RUN cd /usr/local/bin \
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&& { [ -e easy_install ] || ln -s easy_install-* easy_install; } \
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&& ln -s idle3 idle \
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&& ln -s pydoc3 pydoc \
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&& ln -s python3 python \
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&& ln -s python3-config python-config
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CMD ["python3"]

‎Dockerfile-onbuild.template‎

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FROM python:%%PLACEHOLDER%%
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RUN mkdir -p /usr/src/app
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WORKDIR /usr/src/app
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ONBUILD COPY requirements.txt /usr/src/app/
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ONBUILD RUN pip install --no-cache-dir -r requirements.txt
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ONBUILD COPY . /usr/src/app

‎Dockerfile-slim.template‎

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FROM debian:jessie
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# ensure local python is used over debian python
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ENV PATH /usr/local/bin:$PATH
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# http://bugs.python.org/issue19846
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# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
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ENV LANG C.UTF-8
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# runtime dependencies
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RUN apt-get update && apt-get install -y --no-install-recommends \
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ca-certificates \
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libsqlite3-0 \
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libssl1.0.0 \
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&& rm -rf /var/lib/apt/lists/*
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ENV GPG_KEY %%PLACEHOLDER%%
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ENV PYTHON_VERSION %%PLACEHOLDER%%
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# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
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ENV PYTHON_PIP_VERSION %%PLACEHOLDER%%
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RUN set -ex \
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&& buildDeps=' \
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gcc \
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libbz2-dev \
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libc6-dev \
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liblzma-dev \
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libncurses-dev \
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libreadline-dev \
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libsqlite3-dev \
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libssl-dev \
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make \
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tcl-dev \
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tk-dev \
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wget \
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xz-utils \
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zlib1g-dev \
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' \
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&& apt-get update && apt-get install -y $buildDeps --no-install-recommends && rm -rf /var/lib/apt/lists/* \
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\
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&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
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&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
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&& export GNUPGHOME="$(mktemp -d)" \
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&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
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&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
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&& rm -r "$GNUPGHOME" python.tar.xz.asc \
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&& mkdir -p /usr/src/python \
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&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
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&& rm python.tar.xz \
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\
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&& cd /usr/src/python \
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&& ./configure \
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--enable-loadable-sqlite-extensions \
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--enable-shared \
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&& make -j$(nproc) \
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&& make install \
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&& ldconfig \
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\
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# explicit path to "pip3" to ensure Debian "pip3" cannot interfere
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&& if [ ! -e /usr/local/bin/pip3 ]; then : \
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&& wget -O /tmp/get-pip.py 'https://bootstrap.pypa.io/get-pip.py' \
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&& python3 /tmp/get-pip.py "pip==$PYTHON_PIP_VERSION" \
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&& rm /tmp/get-pip.py \
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; fi \
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&& pip3 install --no-cache-dir --upgrade "pip==$PYTHON_PIP_VERSION" \
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&& [ "$(pip list |tac|tac| awk -F '[ ()]+' '$1 == "pip" { print $2; exit }')" = "$PYTHON_PIP_VERSION" ] \
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\
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&& find /usr/local -depth \
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\( \
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\( -type d -a -name test -o -name tests \) \
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-o \
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\( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
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\) -exec rm -rf '{}' + \
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&& apt-get purge -y --auto-remove $buildDeps \
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&& rm -rf /usr/src/python ~/.cache
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# make some useful symlinks that are expected to exist
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RUN cd /usr/local/bin \
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&& { [ -e easy_install ] || ln -s easy_install-* easy_install; } \
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&& ln -s idle3 idle \
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&& ln -s pydoc3 pydoc \
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&& ln -s python3 python \
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&& ln -s python3-config python-config
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CMD ["python3"]

‎update.sh‎

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#!/bin/bash
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set -e
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declare -A gpgKeys=(
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# gpg: key 18ADD4FF: public key "Benjamin Peterson <benjamin@python.org>" imported
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[2.7]='C01E1CAD5EA2C4F0B8E3571504C367C218ADD4FF'
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# https://www.python.org/dev/peps/pep-0373/#release-manager-and-crew
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# gpg: key 36580288: public key "Georg Brandl (Python release signing key) <georg@python.org>" imported
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[3.3]='26DEA9D4613391EF3E25C9FF0A5B101836580288'
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# https://www.python.org/dev/peps/pep-0398/#release-manager-and-crew
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# gpg: key F73C700D: public key "Larry Hastings <larry@hastings.org>" imported
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[3.4]='97FC712E4C024BBEA48A61ED3A5CA953F73C700D'
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# https://www.python.org/dev/peps/pep-0429/#release-manager-and-crew
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# gpg: key F73C700D: public key "Larry Hastings <larry@hastings.org>" imported
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[3.5]='97FC712E4C024BBEA48A61ED3A5CA953F73C700D'
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# https://www.python.org/dev/peps/pep-0478/#release-manager-and-crew
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# gpg: key AA65421D: public key "Ned Deily (Python release signing key) <nad@acm.org>" imported
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[3.6]='0D96DF4D4110E5C43FBFB17F2D347EA6AA65421D'
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# https://www.python.org/dev/peps/pep-0494/#release-manager-and-crew
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)
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cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
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versions=( "$@" )
@@ -11,6 +33,17 @@ versions=( "${versions[@]%/}" )
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1234
pipVersion="$(curl -fsSL 'https://pypi.python.org/pypi/pip/json' | awk -F '"' '$2 == "version" { print $4 }')"
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generated_warning() {
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cat <<-EOH
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#
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# NOTE: THIS DOCKERFILE IS GENERATED VIA "update.sh"
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#
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# PLEASE DO NOT EDIT IT DIRECTLY.
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#
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EOH
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}
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travisEnv=
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for version in "${versions[@]}"; do
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# <span class="release-number"><a href="/downloads/release/python-278/">Python 2.7.8</a></span>
@@ -26,13 +59,34 @@ for version in "${versions[@]}"; do
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echo
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} >&2
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else
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if [[ "$version" != 2.* ]]; then
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for variant in \
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debian \
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alpine \
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slim \
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onbuild \
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; do
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if [ "$variant" = 'debian' ]; then
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dir="$version"
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else
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dir="$version/$variant"
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fi
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template="Dockerfile-$variant.template"
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{ generated_warning; cat "$template"; } > "$dir/Dockerfile"
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done
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if [ -d "$version/wheezy" ]; then
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cp "$version/Dockerfile" "$version/wheezy/Dockerfile"
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sed -ri 's/:jessie/:wheezy/g' "$version/wheezy/Dockerfile"
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fi
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fi
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(
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set -x
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sed -ri '
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s/^(ENV PYTHON_VERSION) .*/\1 '"$fullVersion"'/;
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s/^(ENV PYTHON_PIP_VERSION) .*/\1 '"$pipVersion"'/;
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' "$version"/{,*/}Dockerfile
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sed -ri 's/^(FROM python):.*/\1:'"$version"'/' "$version/onbuild/Dockerfile"
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sed -ri \
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-e 's/^(ENV GPG_KEY) .*/\1 '"${gpgKeys[$version]}"'/' \
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-e 's/^(ENV PYTHON_VERSION) .*/\1 '"$fullVersion"'/' \
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-e 's/^(ENV PYTHON_PIP_VERSION) .*/\1 '"$pipVersion"'/' \
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-e 's/^(FROM python):.*/\1:'"$version"'/' \
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"$version"/{,*/}Dockerfile
3690
)
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fi
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for variant in wheezy alpine slim; do

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