Staged Docker build script

docker/2_build/build-wheels.sh

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+#!/usr/bin/env bash
+
+. /data/venv/bin/activate && pip wheel --wheel-dir=/data/wheelhouse -r /requirements.txt

docker/2_build/build.docker

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+FROM pillar_base
+MAINTAINER Francesco Siddi <francesco@blender.org>
+
+RUN apt-get update && apt-get install -qy \
+git \
+gcc \
+libffi-dev \
+libssl-dev \
+pypy-dev \
+python-dev \
+python-imaging \
+zlib1g-dev \
+libjpeg-dev \
+libtiff-dev \
+python-crypto \
+python-openssl
+
+ENV WHEELHOUSE=/data/wheelhouse
+ENV PIP_WHEEL_DIR=/data/wheelhouse
+ENV PIP_FIND_LINKS=/data/wheelhouse
+
+VOLUME /data/wheelhouse
+
+ADD requirements.txt /requirements.txt
+ADD build-wheels.sh /build-wheels.sh
+ENTRYPOINT ["bash", "build-wheels.sh"]

docker/2_build/build.sh

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+#!/usr/bin/env bash
+
+mkdir -p ../3_run/wheelhouse;
+cp ../../requirements.txt .;
+
+docker build -t pillar_build -f build.docker .;
+docker run --rm \
+       -v "$(pwd)"/../3_run/wheelhouse:/data/wheelhouse \
+       pillar_build;
+
+rm requirements.txt;