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Create Dockerfile_example

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santosomar committed Dec 1, 2019
1 parent 76fba5c commit 08f4886285e5a000d2f9a418faaf7201246408b5
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  1. +128 −0 SCOR/Dockerfile_example
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FROM alpine:3.10

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

# 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
# other runtime dependencies for Python are installed later
RUN apk add --no-cache ca-certificates

ENV GPG_KEY E3FF2839C048B25C084DEBE9B26995E310250568
ENV PYTHON_VERSION 3.8.0

RUN set -ex \
&& apk add --no-cache --virtual .fetch-deps \
gnupg \
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="$(mktemp -d)" \
&& gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY" \
&& gpg --batch --verify python.tar.xz.asc python.tar.xz \
&& { command -v gpgconf > /dev/null && gpgconf --kill all || :; } \
&& rm -rf "$GNUPGHOME" python.tar.xz.asc \
&& mkdir -p /usr/src/python \
&& tar -xJC /usr/src/python --strip-components=1 -f python.tar.xz \
&& rm python.tar.xz \
\
&& apk add --no-cache --virtual .build-deps \
bzip2-dev \
coreutils \
dpkg-dev dpkg \
expat-dev \
findutils \
gcc \
gdbm-dev \
libc-dev \
libffi-dev \
libnsl-dev \
libtirpc-dev \
linux-headers \
make \
ncurses-dev \
openssl-dev \
pax-utils \
readline-dev \
sqlite-dev \
tcl-dev \
tk \
tk-dev \
util-linux-dev \
xz-dev \
zlib-dev \
# add build deps before removing fetch deps in case there's overlap
&& apk del .fetch-deps \
\
&& cd /usr/src/python \
&& gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)" \
&& ./configure \
--build="$gnuArch" \
--enable-loadable-sqlite-extensions \
--enable-optimizations \
--enable-shared \
--with-system-expat \
--with-system-ffi \
--without-ensurepip \
&& make -j "$(nproc)" \
# set thread stack size to 1MB so we don't segfault before we hit sys.getrecursionlimit()
# https://github.com/alpinelinux/aports/commit/2026e1259422d4e0cf92391ca2d3844356c649d0
EXTRA_CFLAGS="-DTHREAD_STACK_SIZE=0x100000" \
&& make install \
\
&& find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec scanelf --needed --nobanner --format '%n#p' '{}' ';' \
| tr ',' '\n' \
| sort -u \
| awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
| xargs -rt apk add --no-cache --virtual .python-rundeps \
&& apk del .build-deps \
\
&& find /usr/local -depth \
\( \
\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
-o \
\( -type f -a \( -name '*.pyc' -o -name '*.pyo' \) \) \
\) -exec rm -rf '{}' + \
&& rm -rf /usr/src/python \
\
&& python3 --version

# make some useful symlinks that are expected to exist
RUN cd /usr/local/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 19.3.1
# https://github.com/pypa/get-pip
ENV PYTHON_GET_PIP_URL https://github.com/pypa/get-pip/raw/ffe826207a010164265d9cc807978e3604d18ca0/get-pip.py
ENV PYTHON_GET_PIP_SHA256 b86f36cc4345ae87bfd4f10ef6b2dbfa7a872fbff70608a1e43944d283fd0eee

RUN set -ex; \
\
wget -O get-pip.py "$PYTHON_GET_PIP_URL"; \
echo "$PYTHON_GET_PIP_SHA256 *get-pip.py" | sha256sum -c -; \
\
python get-pip.py \
--disable-pip-version-check \
--no-cache-dir \
"pip==$PYTHON_PIP_VERSION" \
; \
pip --version; \
\
find /usr/local -depth \
\( \
\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
-o \
\( -type f -a \( -name '*.pyc' -o -name '*.pyo' \) \) \
\) -exec rm -rf '{}' +; \
rm -f get-pip.py

CMD ["python3"]

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