FROM python:3.12-slim-bullseye

# Meta-data
LABEL maintainer="Shuyib" \
      description="RAG API pipeline that allows loading of documents, indexing and question" \
      version="0.0" \
      security_contact="check my github profile"

# Install system deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Set working directory to be /app
WORKDIR /app

# Copy requirement files first for better layer caching
COPY . /app

# Install Python dependencies chain commands to reduce layers
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# keep the port consistent with Uvicorn/Gunicorn binding
EXPOSE 7860

# Run Uvicorn with a production-ready worker
CMD ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "app:app", "-b", "0.0.0.0:7860", "--log-level", "info", "--timeout", "500"]