Update Dockerfile

Dockerfile

@@ -2,16 +2,18 @@ FROM python:3.11-slim
 
 ENV PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
-    HF_HOME=/app/.cache/huggingface \
-    TRANSFORMERS_CACHE=/app/.cache/huggingface/transformers
+    HF_HOME=/data/huggingface
 
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    git && rm -rf /var/lib/apt/lists/*
+# Create a writable, persistent cache directory in Spaces
+RUN mkdir -p /data/huggingface && chmod -R 777 /data
+
+# (Optional) system tools
+RUN apt-get update && apt-get install -y --no-install-recommends git && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
 COPY requirements.txt /app/requirements.txt
 
-# Install CPU torch first from the PyTorch index, then the rest
+# Install CPU torch first (smaller, no CUDA), then the rest
 RUN pip install --no-cache-dir --index-url https://download.pytorch.org/whl/cpu torch==2.3.1+cpu \
  && pip install --no-cache-dir -r /app/requirements.txt
 
@@ -19,6 +21,7 @@ COPY main.py /app/main.py
 
 EXPOSE 7860
 ENV MODEL_ID="ethnmcl/checkin-gpt2"
-# If private model, set HF_TOKEN as a Space secret
+# If the model repo is private, set a Space Secret named HF_TOKEN (Settings → Secrets)
 
 CMD ["python", "-m", "uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]
+