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Dockerfile
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# stuart, web front end for Elite: Dangerous game data collated by lethbridge
# Copyright (C) 2023 Matthew X. Economou
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public
# License along with this program. If not, see
# <https://www.gnu.org/licenses/>.
# Default to this version of Python. Override via a build argument.
ARG BASE_VERSION=3.11
# Start with an image based on the selected Python version.
FROM python:${BASE_VERSION} as base
ARG BASE_VERSION
ENV BASE_VERSION=${BASE_VERSION}
RUN set -eux; \
groupadd -g 2000 stuart; \
useradd -m -g 2000 -u 2000 stuart
ENV PATH=/home/stuart/.local/bin:$PATH
WORKDIR /home/stuart
# Drop root privileges to hinder container escapes.
USER stuart:stuart
# The first stage defines the build environment and includes
# everything needed to compile and install the project.
FROM base as builder
COPY LICENSE pyproject.toml .
COPY src src
RUN set -eux; \
pip install .[psycopg2cffi]; \
echo "from psycopg2cffi import compat\ncompat.register()" \
> /home/stuart/.local/lib/python${BASE_VERSION}/site-packages/psycopg2.py
# The second stage defines the test environment and verifies the
# software installed in the first stage.
FROM builder as tester
USER root
RUN set -eux; \
apt-get update; \
apt-get install -y --no-install-recommends mariadb-server postgresql
USER stuart:stuart
ENV VIRTUAL_ENV=/home/stuart/.venv
ENV PATH=$VIRUAL_ENV/bin:$PATH
COPY tests tests
RUN set -eux; \
python -m venv --system-site-packages .venv; \
pip install --user .[test]; \
pytest --cov=stuart --report-log=pytest.out
# The third stage defines the released container image and should only
# include what's required to run the software in production to hinder
# pivoting.
FROM base
# Re-installing runs the risk of installing a different version of a
# dependency, which invalidates the test results.
COPY --from=builder /home/stuart/.local /home/stuart/.local
# Include the test report as a kind of airworthiness certificate.
COPY --from=tester /home/stuart/pytest.out .
COPY --chown=root:root --chmod=755 docker-entrypoint.sh /usr/local/bin/
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]
CMD ["gunicorn","-b0.0.0.0:8080","stuart.wsgi:app"]