Create dockerfile

dockerfile

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+FROM python:3.10-slim-bookworm
+
+# Set environment variables
+ENV DEBIAN_FRONTEND=noninteractive
+ENV HF_HUB_ENABLE_HF_TRANSFER=1
+ENV HF_HOME=/app/cache
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    git \
+    build-essential \
+    python3-dev \
+    libxml2-dev \
+    libxslt1-dev \
+    zlib1g-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set the working directory
+WORKDIR /app
+
+# Create and permission the cache directory
+RUN mkdir -p /app/cache && chmod -R 777 /app/cache 
+
+# Copy the requirements and install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the application code and RAG engine
+COPY app.py .
+COPY rag_engine.py .
+
+# Build RAG index (ingest URLs once during build)
+RUN python rag_engine.py
+
+# Expose the default port for Hugging Face Spaces
+EXPOSE 7860
+
+# Command to run the application
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]