Dockerfile

FROM python:3.9

# Create non-root user
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /app

# Copy and install Python requirements
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Download NLTK 'punkt' tokenizer during build
RUN python -c "import nltk; nltk.download('punkt')"

# Copy the app source code
COPY --chown=user . /app

# Run the FastAPI app with Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]