Add Hugging Face Spaces configuration

.dockerignore

@@ -0,0 +1,65 @@
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+*.egg-info/
+dist/
+build/
+
+# Virtual environments
+venv/
+env/
+ENV/
+
+# IDEs
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# Testing
+.pytest_cache/
+.coverage
+htmlcov/
+*.cover
+
+# Development
+.env
+.env.local
+*.log
+
+# Git
+.git/
+.gitignore
+.gitattributes
+
+# Documentation (keep only necessary)
+docs/
+
+# Test files (exclude from algorithms/backend)
+algorithms/backend/test_*.py
+algorithms/backend/*_test.py
+algorithms/backend/tests/
+algorithms/backend/analyze_*.py
+algorithms/backend/debug_*.py
+algorithms/backend/compare_*.py
+
+# Notebooks
+*.ipynb
+
+# Other modules not needed for API
+src/
+frontend/
+tests/
+examples/
+algorithms/frontend/
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Keep only algorithms/backend
+!algorithms/backend/

Dockerfile

@@ -0,0 +1,59 @@
+# Multi-stage build for Land Redistribution API
+# This Dockerfile is for deploying from the REMB root directory
+FROM python:3.11-slim as builder
+
+# Set working directory
+WORKDIR /app
+
+# Install system dependencies required for scientific libraries
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    gcc \
+    g++ \
+    gfortran \
+    libopenblas-dev \
+    liblapack-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first for better caching
+COPY algorithms/backend/requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
+
+# Final stage
+FROM python:3.11-slim
+
+# Set working directory
+WORKDIR /app
+
+# Install runtime dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libopenblas0 \
+    libgomp1 \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy Python packages from builder
+COPY --from=builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
+COPY --from=builder /usr/local/bin /usr/local/bin
+
+# Copy application code from algorithms/backend
+COPY algorithms/backend/ .
+
+# Create non-root user
+RUN useradd -m -u 1000 appuser && \
+    chown -R appuser:appuser /app
+
+# Switch to non-root user
+USER appuser
+
+# Expose Hugging Face Spaces default port
+EXPOSE 7860
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import requests; requests.get('http://localhost:7860/health')"
+
+# Run the application
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]