Dockerfile

# Use official Python image
FROM python:3.9

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

# Set working dir
WORKDIR /app

# Install requirements
COPY --chown=user requirements.txt requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

# Copy project files
COPY --chown=user . .

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