Dockerfile

# Multi-stage build for Financial Assistant Backend
# Stage 1: Base image with dependencies
FROM python:3.11-slim as base

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    libxml2-dev \
    libxslt-dev \
    && rm -rf /var/lib/apt/lists/*

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

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

# Stage 2: Production image
FROM python:3.11-slim

WORKDIR /app

# Install only runtime dependencies
RUN apt-get update && apt-get install -y \
    libxml2 \
    libxslt1.1 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy Python packages from base stage
COPY --from=base /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=base /usr/local/bin /usr/local/bin

# Copy application code
COPY agent/ ./agent/
COPY api/ ./api/

# Create directories for persistent data
RUN mkdir -p /app/chroma_db /app/sec-edgar-filings

# Create non-root user for security
RUN useradd -m -u 1000 appuser && \
    chown -R appuser:appuser /app
USER appuser

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/api/health || exit 1

# Run the application
CMD ["uvicorn", "api.app:app", "--host", "0.0.0.0", "--port", "8000"]