Dockerfile.api

# CineSemantics production API image (Day-9 Phase 7).
# Serves the integrated champions (e5-base retrieval + HNSW + ItemKNN CF) behind
# FastAPI, with the Redis-backed cache / feedback log. Catalog embeddings and CF
# artifacts are mounted at runtime (see docker-compose.yml) so the image stays code-only.
FROM python:3.11-slim

WORKDIR /app

ENV PYTHONUNBUFFERED=1 \
    PIP_NO_CACHE_DIR=1 \
    REDIS_URL=redis://redis:6379/0 \
    HF_HOME=/app/.hf

# system libs needed by faiss / pillow
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential curl && rm -rf /var/lib/apt/lists/*

COPY requirements-api.txt .
RUN pip install --no-cache-dir -r requirements-api.txt

# code only; data/, models/, results/emb_cache/ are bind-mounted at runtime
COPY api.py ./api.py
COPY src ./src
COPY utils ./utils

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

CMD ["uvicorn", "api:app", "--host", "0.0.0.0", "--port", "8000"]