Dockerfile

FROM python:3.12-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    wget \
    ca-certificates \
    libglx-mesa0 \
    libfontconfig1 \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

ARG HF_CACHE_DIR_ARG=/app/.cache
ENV HF_HOME=${HF_CACHE_DIR_ARG}
ENV HF_DATASETS_CACHE=${HF_CACHE_DIR_ARG}/datasets
ENV TRANSFORMERS_CACHE=${HF_CACHE_DIR_ARG}/transformers

RUN mkdir -p ${HF_DATASETS_CACHE} && chmod -R 777 ${HF_CACHE_DIR_ARG}

COPY setup.sh .
COPY requirements.txt .
COPY app.py .
COPY src/ ./src/

RUN chmod +x setup.sh && ./setup.sh

# Remove MiniZinc's bundled OpenSSL libs to prevent conflict with Python's SSL module
RUN rm -f /opt/minizinc/lib/libcrypto.so.3 /opt/minizinc/lib/libssl.so.3

# make the directories for local HF downloads and temp directory for execution code
RUN mkdir -p /app/local_hf_downloads && chmod 777 /app/local_hf_downloads
RUN mkdir -p /app/temp_dir_for_exec_code && chmod 777 /app/temp_dir_for_exec_code

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

ENV MZN_DIR=/opt/minizinc
ENV PATH="${MZN_DIR}/bin:${PATH}"
ENV LD_LIBRARY_PATH="${LD_LIBRARY_PATH}:${MZN_DIR}/lib"
ENV QT_PLUGIN_PATH="${MZN_DIR}/plugins:${QT_PLUGIN_PATH}"

EXPOSE 7860

CMD ["python", "app.py"]