###########
# BUILDER #
###########

# pull official base image
FROM python:3.8.1 as builder

# set work directory
WORKDIR /usr/src/app

# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# install dependencies
RUN apt-get -y update
RUN apt-get install -y python python-pip python-dev python-django-extensions postgresql-client netcat
RUN apt-get -y update && apt-get -y autoremove

# lint
RUN pip install --upgrade pip
RUN pip install flake8
COPY ./src /usr/src/app/
#RUN flake8 --max-line-length=125 --exclude=kszkepzes,migrations .

# install dependencies
COPY ./requirements/production.txt /usr/src/app/requirements.txt
RUN pip wheel --no-cache-dir --no-deps --wheel-dir /usr/src/app/wheels -r requirements.txt

#########
# FINAL #
#########

# pull official base image
FROM python:3.8.1

# create directory for the app user
RUN mkdir -p /home/app

# create the app user
RUN groupadd app && useradd -g app app

# create the appropriate directories
ENV HOME=/home/app
ENV APP_HOME=/home/app/kszkepzes-backend
RUN mkdir $APP_HOME
RUN mkdir $APP_HOME/staticfiles
WORKDIR $APP_HOME

# install dependencies
RUN apt-get -y update && apt-get install netcat -y
COPY --from=builder /usr/src/app/wheels /wheels
COPY --from=builder /usr/src/app/requirements.txt .
RUN pip install --upgrade pip
RUN pip install --no-cache /wheels/*

# copy entrypoint-prod.sh
COPY ./src/entrypoint.prod.sh $APP_HOME

# copy project
COPY ./src $APP_HOME

# chown all the files to the app user
RUN chown -R app:app $APP_HOME

# change to the app user
USER app

# run entrypoint.sh
ENTRYPOINT ["/home/app/kszkepzes-backend/entrypoint.prod.sh"]