Dockerfile

# Multi-stage Docker build for SecureCodeGraph MCP server
# Builder stage: Install dependencies
# Runtime stage: Minimal production image with non-root user

FROM python:3.11-slim as builder

WORKDIR /build

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

# Copy project files
COPY . .

# Create virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Upgrade pip and install dependencies
RUN pip install --upgrade pip setuptools wheel && \
    pip install -e .


# Runtime stage: Minimal production image
FROM python:3.11-slim

WORKDIR /app

# Install only runtime dependencies (no build tools)
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv

# Create non-root user for security
RUN groupadd -r scg && useradd -r -g scg scg

# Set environment variables
ENV PATH="/opt/venv/bin:$PATH" \
    PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    SCG_DB_PATH=/home/scg/.secure-code-graph/graph.db

# Create data directory with proper permissions
RUN mkdir -p /home/scg/.secure-code-graph && \
    chown -R scg:scg /home/scg

# Switch to non-root user
USER scg

# Copy project (will be at /app after builder copy)
COPY --chown=scg:scg --from=builder /build /app

# Expose port for HTTP transport
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import requests; requests.get('http://127.0.0.1:8000/health', timeout=5)" || exit 1

# Default command: start MCP server in stdio mode
ENTRYPOINT ["python", "-m", "secure_code_graph"]
CMD ["server"]