FROM python:3.9-slim WORKDIR /app COPY api /app # install any needed packages specified in requirements.txt RUN pip install --no-cache-dir -r requirements.txt # make port 5000 available to the world outside this container EXPOSE 5000 # define environment variable ENV FLASK_APP=api.py # run Gunicorn instead of the default Flask development server CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--timeout", "60", "api:app"]