Dockerfile

# Use an official Python runtime as a parent image
FROM python:3.10-slim

# Set the working directory in the container
WORKDIR /app

# Copy the requirements file into the container
COPY requirements.txt .

# Install any needed packages specified in requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Install gunicorn for serving the Flask app in production
RUN pip install --no-cache-dir gunicorn

# Copy the rest of the application code
COPY . .

# Expose port 5000 to the outside world
EXPOSE 5000

# Set environment variables
ENV FLASK_APP=app.py
ENV PYTHONUNBUFFERED=1
ENV FLASK_ENV=production

# Run gunicorn serving the Flask app with 4 worker processes
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--timeout", "120", "app:app"]