Dockerfile

# Use Python 3.11 slim image
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create a non-root user
RUN useradd --create-home --shell /bin/bash app
RUN chown -R app:app /app
USER app

# Expose port
EXPOSE 8080

# Set environment variables
ENV PYTHONPATH=/app
ENV FLASK_APP=api.py

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8080/health || exit 1

# Run the application
# --timeout 120: Allow up to 120s for slow AI/embedding API calls (default 30s causes WORKER TIMEOUT)
# --workers 2: Handle concurrent requests without blocking
CMD ["gunicorn", "--bind", "0.0.0.0:8080", "--workers", "2", "--timeout", "120", "api:app"]