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# STAGE 1: Build Environment (Temporary)
# ==========================================
FROM python:3.10-slim AS builder
RUN apt-get update && apt-get install -y --no-install-recommends \
build-essential \
cmake \
libopenblas-dev \
liblapack-dev \
&& rm -rf /var/lib/apt/lists/*
WORKDIR /app
# The builder ONLY needs pybind11 to compile the C++ code!
RUN pip install --no-cache-dir pybind11
# Copy only what your engine needs
COPY CMakeLists.txt ./
COPY src/ ./src
COPY include/ ./include
RUN mkdir build && cd build && \
cmake -DCMAKE_BUILD_TYPE=Release .. && \
make vecmini
# ==========================================
# STAGE 2: Final Runtime Environment (Your App)
# ==========================================
FROM python:3.10-slim
RUN useradd -m -u 1000 user
WORKDIR /home/user/app
# Install runtime C++ math dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
libopenblas0 \
libomp-dev \
&& rm -rf /var/lib/apt/lists/*
# Copy the compiled .so module directly into the Python environment
COPY --from=builder /app/build/vecmini*.so /home/user/app/
# Copy your frontend code (app.py)
COPY --chown=user . /home/user/app
# IMPORTANT: This is where ALL the runtime Python packages go!
RUN pip install --no-cache-dir gradio numpy pypdf transformers torch urllib3 --extra-index-url https://download.pytorch.org/whl/cpu
ENV PORT=7860
EXPOSE 7860
CMD ["python", "app.py"]
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