ARG PYTHON_VERSION=3.10-slim-bullseye

# define an alias for the specfic python version used in this file.
FROM python:${PYTHON_VERSION} as python

RUN sed -i 's/deb.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
    && sed -i 's/security.debian.org/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
    && apt-get update

# Python build stage
FROM python as python-build-stage

ARG DJANGO_ENV=production

# Install apt packages
RUN apt-get update && apt-get install --no-install-recommends -y \
  # dependencies for building Python packages
  build-essential \
  default-libmysqlclient-dev \
  # psycopg2 dependencies
  libpq-dev \
  # poetry
  && pip install poetry -i https://pypi.tuna.tsinghua.edu.cn/simple \
  && poetry --version

WORKDIR /tmp

# Gunicon
RUN pip wheel --wheel-dir /usr/src/app/wheels gunicorn -i https://pypi.tuna.tsinghua.edu.cn/simple

COPY ./pyproject.toml ./poetry.lock /tmp/

RUN echo "$DJANGO_ENV" \
    && poetry config virtualenvs.create false \
    && poetry export \
       $(if [ "$DJANGO_ENV" = 'development' ]; then echo '--with dev'; fi) \
       --output requirements.txt

# RUN poetry install

RUN pip wheel --wheel-dir /usr/src/app/wheels  \
  -r requirements.txt

FROM python as python-run-stage

ARG APP_HOME=/app

ENV PYTHONUNBUFFERED 1
ENV PYTHONDONTWRITEBYTECODE 1

WORKDIR ${APP_HOME}

RUN addgroup --system django \
    && adduser --system --ingroup django django


# Install required system dependencies
RUN apt-get update && apt-get install --no-install-recommends -y \
  # psycopg2 dependencies
  libpq-dev \
  # Translations dependencies
  gettext \
  vim \
  curl \
  # cleaning up unused files
  && apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false \
  && rm -rf /var/lib/apt/lists/*

# All absolute dir copies ignore workdir instruction. All relative dir copies are wrt to the workdir instruction
# copy python dependency wheels from python-build-stage
COPY --from=python-build-stage /usr/src/app/wheels  /wheels/

# use wheels to install python dependencies
RUN pip install --no-cache-dir --no-index --find-links=/wheels/ /wheels/* \
  && rm -rf /wheels/

COPY --chown=django:django ./docker/django/gunicorn_config.py gunicorn_config.py

COPY --chown=django:django ./docker/django/start.sh start.sh
RUN sed -i 's/\r$//g' start.sh && chmod +x start.sh

{%- if cookiecutter.use_celery == 'y' %}
COPY --chown=django:django ./docker/django/celery/worker/start.sh start-celeryworker.sh
COPY --chown=django:django ./docker/django/celery/beat/start.sh start-celerybeat.sh
COPY --chown=django:django ./docker/django/celery/flower/start.sh start-flower.sh
RUN sed -i 's/\r$//g' start-celeryworker.sh && chmod +x start-celeryworker.sh \
    && sed -i 's/\r$//g' start-celerybeat.sh && chmod +x start-celerybeat.sh \
    && sed -i 's/\r$//g' start-flower.sh && chmod +x start-flower.sh \
{%- endif %}

# copy application code to WORKDIR
COPY --chown=django:django ./manage.py manage.py
COPY --chown=django:django ./config/ config/
COPY --chown=django:django ./server/ server/

# make django owner of the WORKDIR directory as well.
RUN chown django:django ${APP_HOME}

USER django

HEALTHCHECK --interval=30s --timeout=30s --retries=3 CMD curl localhost:8000 || exit 1

EXPOSE 8000

ENTRYPOINT ["/bin/bash", "start.sh"]
