Dockerfile.dev

FROM python:3.11-slim

ENV PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app/src \
    VIRTUAL_ENV=/app/.venv \
    PATH=/app/.venv/bin:$PATH \
    FASTEMBED_CACHE_PATH=/app/.fastembed_cache \
    PORT=8000

WORKDIR /app

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

COPY --from=ghcr.io/astral-sh/uv:0.10.12 /uv /usr/local/bin/uv

COPY pyproject.toml uv.lock ./
RUN uv sync --no-dev

# Sparse embedding 已移至獨立的 fastembed service，這裡只預載 reranker
ARG RAG_RERANKER_MODEL=jinaai/jina-reranker-v2-base-multilingual

RUN set -eu; \
    cache="$FASTEMBED_CACHE_PATH"; \
    mkdir -p "$cache"; \
    if [ -n "$RAG_RERANKER_MODEL" ]; then \
        echo "Downloading reranker model: $RAG_RERANKER_MODEL"; \
        /app/.venv/bin/python -c "from fastembed.rerank.cross_encoder import TextCrossEncoder; TextCrossEncoder('$RAG_RERANKER_MODEL', cache_dir='$cache')"; \
    fi

EXPOSE 8000
# src/ 透過 docker-compose volumes 掛載；--reload 支援 hot-reload
CMD ["sh", "-c", "uvicorn chatbot_plugin.main:app --host 0.0.0.0 --port ${PORT:-8000} --reload"]