Dockerfile

#
# NOTE: THIS DOCKERFILE IS GENERATED VIA "update.sh"
#
# PLEASE DO NOT EDIT IT DIRECTLY.
#

FROM alpine:3.4

ARG PREFIX_DIR=/usr/local/python3

# Replace the default install directory
# e.g. in vim :%s/\/usr\/local/$PREFIX_DIR/g
# Then tell the install to use that directory
# :%s/\.\/configure /\.\/configure --prefix=$PREFIX_DIR --enable-shared /g

RUN mkdir $PREFIX_DIR

# ensure local python is preferred over distribution python
ENV PATH $PREFIX_DIR/bin:$PATH

ENV LD_LIBRARY_PATH $PREFIX_DIR/lib

# http://bugs.python.org/issue19846
# > At the moment, setting "LANG=C" on a Linux system *fundamentally breaks Python 3*, and that's not OK.
ENV LANG C.UTF-8

# install ca-certificates so that HTTPS works consistently
# the other runtime dependencies for Python are installed later
RUN apk add --no-cache ca-certificates

ENV GPG_KEY 0D96DF4D4110E5C43FBFB17F2D347EA6AA65421D
ENV PYTHON_VERSION 3.6.1

RUN set -ex \
	&& apk add --no-cache --virtual .fetch-deps \
		gnupg \
		openssl \
		tar \
		xz \
	\
	&& wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz" \
	&& wget -O python.tar.xz.asc "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz.asc" \
	&& export GNUPGHOME="$(mktemp -d)" \
	&& gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
	&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
	&& rm -rf "$GNUPGHOME" python.tar.xz.asc \
	&& mkdir -p /usr/src/python \
	&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
	&& rm python.tar.xz \
	\
	&& apk add --no-cache --virtual .build-deps  \
		bzip2-dev \
		coreutils \
		dpkg-dev dpkg \
		expat-dev \
		gcc \
		gdbm-dev \
		libc-dev \
		linux-headers \
		make \
		ncurses-dev \
		openssl \
		openssl-dev \
		pax-utils \
		readline-dev \
		sqlite-dev \
		tcl-dev \
		tk \
		tk-dev \
		xz-dev \
		zlib-dev \
# add build deps before removing fetch deps in case there's overlap
	&& apk del .fetch-deps \
	\
	&& cd /usr/src/python \
	&& gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
	&& env LDFLAGS="-L${PREFIX_DIR}/lib" ./configure --prefix=$PREFIX_DIR \
		--build="$gnuArch" \
		--enable-loadable-sqlite-extensions \
		--enable-shared \
		--with-system-expat \
		--with-system-ffi \
		--without-ensurepip \
	&& make -j "$(nproc)" \
	&& make install \
	\
	&& runDeps="$( \
		scanelf --needed --nobanner --recursive $PREFIX_DIR \
			| awk '{ gsub(/,/, "\nso:", $2); print "so:" $2 }' \
			| sort -u \
			| xargs -r apk info --installed \
			| sort -u \
	)" \
	&& apk add --virtual .python-rundeps $runDeps \
	&& apk del .build-deps \
	\
	&& find $PREFIX_DIR -depth \
		\( \
			\( -type d -a -name test -o -name tests \) \
			-o \
			\( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
		\) -exec rm -rf '{}' + \
	&& rm -rf /usr/src/python

# make some useful symlinks that are expected to exist
RUN cd $PREFIX_DIR/bin \
	&& ln -s idle3 idle \
	&& ln -s pydoc3 pydoc \
	&& ln -s python3 python \
	&& ln -s python3-config python-config

# if this is called "PIP_VERSION", pip explodes with "ValueError: invalid truth value '<VERSION>'"
ENV PYTHON_PIP_VERSION 9.0.1

RUN set -ex; \
	\
	apk add --no-cache --virtual .fetch-deps openssl; \
	\
	wget -O get-pip.py 'https://bootstrap.pypa.io/get-pip.py'; \
	\
	apk del .fetch-deps; \
  \
  python get-pip.py \
		--disable-pip-version-check \
		--no-cache-dir \
		"pip==$PYTHON_PIP_VERSION"; \
  \
  pip --version; \
	\
	find $PREFIX_DIR -depth \
		\( \
			\( -type d -a -name test -o -name tests \) \
			-o \
			\( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
		\) -exec rm -rf '{}' +; \
	rm -f get-pip.py

CMD ["python3"]