Create Dockerfile

Dockerfile

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+FROM python:3.11-slim
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    HF_HOME=/root/.cache/huggingface \
+    HF_CACHE_DIR=/models/hf \
+    HF_REPO_ID=ethnmcl/test-score-predictor-xgb
+
+WORKDIR /app
+
+# Minimal system deps
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates curl && \
+    rm -rf /var/lib/apt/lists/*
+
+# Python deps
+COPY requirements.txt ./
+RUN pip install --upgrade pip && pip install -r requirements.txt
+
+# App code
+COPY app.py inference.py ./
+
+# Create cache dir
+RUN mkdir -p ${HF_CACHE_DIR}
+
+# Expose Hugging Face Spaces port
+EXPOSE 7860
+
+# Start FastAPI (Spaces require 0.0.0.0:7860)
+CMD uvicorn app:app --host 0.0.0.0 --port 7860 --workers ${WORKERS:-1}