# create a new version of this docker image
# from https://stackoverflow.com/a/42125241/669561
# build from project top directory!
# > docker build -f Dockerfile -t iterativ/vbv-lernwelt-django .
# run locally
# > docker run -v $(dirname $(pwd)) -p 8080:80 -it iterativ/vbv-lernwelt-django /bin/bash
# push to registry
# > docker push iterativ/vbv-lernwelt-django
ARG PYTHON_VERSION=3.10-slim-bullseye

FROM node:16-bullseye-slim as client-builder

ARG APP_HOME=/app
WORKDIR ${APP_HOME}

COPY ./server ${APP_HOME}

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

# Setup Supersonic (Cron scheduler for containers)
# https://github.com/aptible/supercronic
ENV SUPERCRONIC_URL=https://github.com/aptible/supercronic/releases/download/v0.2.26/supercronic-linux-amd64 \
    SUPERCRONIC=supercronic-linux-amd64 \
    SUPERCRONIC_SHA1SUM=7a79496cf8ad899b99a719355d4db27422396735

RUN apt-get update && apt-get install --no-install-recommends -y curl
RUN curl -fsSLO "$SUPERCRONIC_URL" \
 && echo "${SUPERCRONIC_SHA1SUM}  ${SUPERCRONIC}" | sha1sum -c - \
 && chmod +x "$SUPERCRONIC" \
 && mv "$SUPERCRONIC" "/usr/local/bin/${SUPERCRONIC}" \
 && ln -s "/usr/local/bin/${SUPERCRONIC}" /usr/local/bin/supercronic

COPY ./compose/django/supercronic_crontab /app/supercronic_crontab

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

ARG BUILD_ENVIRONMENT=production

# Install apt packages
RUN apt-get install --no-install-recommends -y \
  # dependencies for building Python packages
  build-essential \
  # supervisor \
  # psycopg2 dependencies
  libpq-dev \
  git

# Requirements are installed here to ensure they will be cached.
COPY ./server/requirements .

# Create Python Dependency and Sub-Dependency Wheels.
# FIXME should we also use requirements-dev.txt in prod?
RUN pip wheel --wheel-dir /usr/src/app/wheels -r requirements-dev.txt


# Python 'run' stage
FROM python as python-run-stage

ARG BUILD_ENVIRONMENT=production
ARG APP_HOME=/app

ENV PYTHONUNBUFFERED 1
ENV PYTHONDONTWRITEBYTECODE 1
ENV BUILD_ENV ${BUILD_ENVIRONMENT}

WORKDIR ${APP_HOME}

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


# Install required system dependencies
RUN apt-get install --no-install-recommends -y \
  # psycopg2 dependencies
  libpq-dev \
  # Translations dependencies
  gettext \
  # 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 ./compose/django/docker_entrypoint.sh /entrypoint
RUN sed -i 's/\r$//g' /entrypoint
RUN chmod +x /entrypoint


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

#COPY --chown=django:django ./compose/production/django/celery/worker/start /start-celeryworker
#RUN sed -i 's/\r$//g' /start-celeryworker
#RUN chmod +x /start-celeryworker
#
#COPY --chown=django:django ./compose/production/django/celery/beat/start /start-celerybeat
#RUN sed -i 's/\r$//g' /start-celerybeat
#RUN chmod +x /start-celerybeat
#
#COPY ./compose/production/django/celery/flower/start /start-flower
#RUN sed -i 's/\r$//g' /start-flower
#RUN chmod +x /start-flower


# copy application code to WORKDIR
COPY --from=client-builder --chown=django:django ${APP_HOME} ${APP_HOME}

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

USER django

# pip install under the user django, the scripts will be in /home/django/.local/bin
RUN pip install supervisor
COPY ./compose/django/supervisord.conf /app/supervisord.conf

EXPOSE 7555

ENTRYPOINT ["/entrypoint"]
