net/flask/Dockerfile

FROM python:3

# 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 APP_HOME=/app
RUN mkdir $APP_HOME
WORKDIR $APP_HOME

# install dependencies
RUN apt-get update && apt-get install -y --no-install-recommends netcat-openbsd gcc

COPY ./requirements.txt .
RUN pip install -r requirements.txt

# copy entrypoint.sh
COPY ./entrypoint.sh $APP_HOME

# copy project
COPY . $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 ["./entrypoint.sh"]