FROM python:3.11-slim

ENV TRANSFORMERS_CACHE=/srv/.hf_cache \
    HF_HUB_DISABLE_TELEMETRY=1 \
    PIP_NO_CACHE_DIR=1 \
    PYTHONUNBUFFERED=1

# Optional: Systemlibs (meist nicht nötig, aber schadet nicht)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential git wget ca-certificates && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /srv

# 1) CPU-Torch fest aus CPU-Index (kleiner, ohne CUDA)
RUN python -m pip install --upgrade pip && \
    pip install --no-cache-dir --index-url https://download.pytorch.org/whl/cpu "torch==2.2.2"

# 2) Restliche Pakete (getrennt, damit torch nicht überschrieben wird)
RUN pip install --no-cache-dir \
    fastapi==0.111.0 \
    uvicorn[standard]==0.30.1 \
    "sentence-transformers==3.0.1"

# App-Code in das Image (nur embed_server.py)
COPY ../app/embed_server.py /srv/embed_server.py

EXPOSE 8990
CMD ["uvicorn", "embed_server:app", "--host", "0.0.0.0", "--port", "8990"]