FROM python:3.10-slim

WORKDIR /app

# Install system dependencies first
RUN apt-get update && apt-get install -y \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Upgrade pip first
RUN pip install --upgrade pip

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

CMD ["gunicorn", "--bind", "0.0.0.0:7860", "app:app"]