# Dockerfile for the Backend API

# 1. Start with a modern, lightweight Python version.
FROM python:3.11-slim

# 2. Set the working directory inside the container.
WORKDIR /code

# 3. FIX: Update package lists and install the missing graphics library for OpenCV.
RUN apt-get update && apt-get install -y libgl1-mesa-glx

# 4. Copy the requirements file and install Python dependencies.
COPY ./requirements.txt /code/requirements.txt
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# 5. Copy all your application files (backend_app.py, best.pt) into the container.
COPY . /code/

# 6. The command that tells the server how to run your FastAPI app.
CMD ["uvicorn", "backend_app:app", "--host", "0.0.0.0", "--port", "7860"]