Dockerfile

# --- L9_META ---
# l9_schema: 1
# origin: l9-template
# engine: graph
# layer: [docker]
# tags: [L9_TEMPLATE, docker, dev]
# owner: platform
# status: active
# --- /L9_META ---
# ─────────────────────────────────────────────────────────────
# L9 Graph Cognitive Engine — Multi-stage Dockerfile
# Stage 1: deps    — install Python packages
# Stage 2: runtime — slim image with only what we need
# ─────────────────────────────────────────────────────────────

# ── Stage 1: Dependencies ──────────────────────────────────
FROM python:3.12-slim AS deps

# git is required to resolve the git+https constellation-node-sdk dependency
RUN apt-get update && apt-get install -y --no-install-recommends git \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /build
COPY requirements.txt requirements.txt
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt

# ── Stage 2: Runtime ───────────────────────────────────────
FROM python:3.12-slim AS runtime

WORKDIR /app

# Copy installed packages from deps stage
COPY --from=deps /install /usr/local

# Copy application code
COPY engine/ /app/engine/
COPY domains/ /app/domains/
COPY chassis/ /app/chassis/

# Copy entrypoint
COPY scripts/entrypoint.sh /app/entrypoint.sh

# Make the entrypoint executable and create the non-root user in a single layer
RUN chmod +x /app/entrypoint.sh \
    && groupadd -r l9 && useradd -r -g l9 -d /app -s /sbin/nologin l9 \
    && chown -R l9:l9 /app
USER l9

EXPOSE 8000

# Health check
HEALTHCHECK --interval=15s --timeout=5s --retries=3 \
    CMD python -c "import httpx; r=httpx.get('http://localhost:8000/v1/health'); exit(0 if r.status_code==200 and r.json().get('ready', True) else 1)"

ENTRYPOINT ["/app/entrypoint.sh"]