Create Dockerfile

Dockerfile

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+# Step 1: Use an official lightweight Python image
+FROM python:3.11-slim
+
+# Step 2: Install required system utilities
+RUN apt-get update && apt-get install -y \
+    wget \
+    tar \
+    git \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# --- HUGGING FACE COMPLIANCE STEP ---
+RUN useradd -m -u 1000 user
+ENV HOME=/home/user \
+    PATH=/home/user/.local/bin:$PATH
+
+# Step 3: Set up the working directory inside the container
+WORKDIR /app
+
+# Step 4: Copy repo files and explicitly grant ownership to our user
+COPY --chown=user:user . /app
+
+# --- AUTOMATED NNUE DOWNLOAD STEP ---
+# Creating the folder and downloading the latest networks for variants
+RUN mkdir -p /app/fairy/nnue && \
+    # Crazyhouse NNUE
+    curl -L -o /app/fairy/nnue/crazyhouse.nnue "https://raw.githubusercontent.com/fairy-stockfish/nnue-networks/main/crazyhouse-8ebf84784ad2.nnue" && \
+    # Atomic Chess NNUE
+    curl -L -o /app/fairy/nnue/atomic.nnue "https://raw.githubusercontent.com/fairy-stockfish/nnue-networks/main/active-41937adf950a.nnue" && \
+    # Three-check NNUE
+    curl -L -o /app/fairy/nnue/3check.nnue "https://raw.githubusercontent.com/fairy-stockfish/nnue-networks/main/3check-cb5f517c228b.nnue" && \
+    # King of the Hill NNUE
+    curl -L -o /app/fairy/nnue/koth.nnue "https://raw.githubusercontent.com/fairy-stockfish/nnue-networks/main/koth-a10c85f40398.nnue" && \
+    # Racing Kings NNUE
+    curl -L -o /app/fairy/nnue/racingkings.nnue "https://raw.githubusercontent.com/fairy-stockfish/nnue-networks/main/racingkings-608b26569108.nnue" && \
+    # Ensure the user owns the new NNUE files
+    chown -R user:user /app/fairy/nnue
+
+# --- FIX: Permissions ---
+RUN chmod -R 777 /app
+
+# Step 5: Install the Python requirements
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Step 6: Grant execute permission to your variant engine
+RUN chmod +x ./fairy/stockfish
+
+# Switch to the Hugging Face restricted user
+USER user
+
+# Step 7: Expose Hugging Face's mandatory port
+EXPOSE 7860
+
+# Force Python logs to output immediately
+ENV PYTHONUNBUFFERED=1
+
+# This creates a folder called 'www', puts an empty index file in it, 
+# and tells the server to only show that folder.
+CMD mkdir -p www && touch www/index.html && python3 -m http.server 7860 --directory www & python3 lichess-bot-master/lichess-bot.py