Dockerfile

# Dockerfile for HuggingFace Spaces deployment
# Optimized for HF Spaces which run as root by default

FROM python:3.11-slim

# Install Rust + C linker (gcc/cc is required by rustc for linking)
RUN apt-get update && apt-get install -y curl gcc libc6-dev && \
    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

ENV PATH="/root/.cargo/bin:${PATH}"

# Set working directory
WORKDIR /app

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Install the algo_reasoning_env package
COPY algo_reasoning_env/ /app/algo_reasoning_env/

# Copy dataset files to /data/
COPY complexity_reasoning_data/ /data/

# Copy entry point
COPY app.py .

# Copy OpenEnv spec
COPY openenv.yaml .

# Expose port (HF Spaces uses 7860 by default)
EXPOSE 7860

# Run the server with a single worker to ensure in-memory session state
# is shared across all HTTP requests within the same process
CMD ["uvicorn", "algo_reasoning_env.server.app:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]