FROM python:3.10-slim

WORKDIR /app

# 1. Install standard build tools and cmake
RUN apt-get update && apt-get install -y \
    build-essential \
    cmake \
    && rm -rf /var/lib/apt/lists/*

# 2. Install pinned dependencies
COPY ./requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt

# 3. Deploy app files
COPY . .

CMD ["python", "app.py"]