FROM python:3.7-alpine

ENV FLASK_APP=app.py
ENV FLASK_RUN_HOST=0.0.0.0
ENV FLASK_PORT=5000

EXPOSE 5000

RUN apk update && \
    apk add --no-cache gcc musl-dev linux-headers libpq-dev python3-dev

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

COPY ./app /app

CMD ["flask", "run"]