Dockerfile

# Use an official Python runtime as a parent image
FROM python:3.9-slim

# Install system dependencies for OpenCV, including libGL.so.1 and others
RUN apt-get update && apt-get install -y \
    libgl1-mesa-glx \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender1 \
    && rm -rf /var/lib/apt/lists/*

# Set the working directory in the container
WORKDIR /app

# Copy the current directory contents into the container at /app
COPY . /app

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

# Install Gunicorn
RUN pip install gunicorn

# Expose the port the app runs on
EXPOSE 5000

# Run the Gunicorn server when the container launches
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "app:app"]