Dockerfile.prod

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

# pull official base image
FROM python:3.9.5-slim-buster as builder

# set work directory
WORKDIR /usr/src/app

# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends gcc

# lint
RUN pip install --upgrade pip && \
    pip install flake8==3.9.1
COPY . .
RUN flake8

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


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

# pull official base image
FROM python:3.9.5-slim-buster

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

# create the app user
RUN addgroup --system app && adduser --system --group app

# create the appropriate directories
ENV HOME=/home/app
ENV APP_HOME=/home/app/web
WORKDIR $APP_HOME

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

# copy project
COPY . $APP_HOME

# expose the static file directory as a volume
VOLUME /home/app/web/chezchat/static

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

# change to the app user
USER app

EXPOSE 5000

# run entrypoint.prod.sh
ENTRYPOINT ["/home/app/web/scripts/entrypoint.prod.sh"]