FROM ubuntu:20.04 RUN apt-get update -y && \ apt-get install -y python3-pip && \ apt install -y libpq-dev ENV FLASK_APP=app/flask_app.py ENV FLASK_RUN_HOST=0.0.0.0 ENV FLASK_ENV=development COPY app/requirements.txt /app/requirements.txt WORKDIR /app COPY . /app RUN pip3 install -r requirements.txt EXPOSE 5000 CMD [ "flask", "run"]