Dockerfile

FROM python:3.9-slim

# Set the working directory inside the container
WORKDIR /app

# Copy all files from the current directory to the container's working directory
COPY . .

# Install dependencies from the requirements file without using cache to reduce image size
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Define the command to start the Flask application using Gunicorn
# -w 4: 4 worker processes
# -b 0.0.0.0:7860: binds to port 7860 on all interfaces
# app:app -> "app" (filename) : "app" (Flask instance)
CMD ["gunicorn", "-w", "1", "-b", "0.0.0.0:7860", "app:app"]