Update Dockerfile

Dockerfile

@@ -1,12 +1,13 @@
 FROM nvidia/cuda:12.1.1-cudnn8-runtime-ubuntu22.04
+
 ENV DEBIAN_FRONTEND=noninteractive \
     PYTHONUNBUFFERED=1 \
     PIP_NO_CACHE_DIR=1 \
     HF_HUB_ENABLE_HF_TRANSFER=1 \
+    # Give numba/outlines a writable cache in Spaces runtime
     NUMBA_CACHE_DIR=/tmp/numba_cache \
-    # optional: uncomment to fully disable FS caching
-    # NUMBA_DISABLE_FILE_SYSTEM_CACHING=1
     OUTLINES_CACHE_DIR=/tmp/outlines_cache
+    # If issues persist, add: NUMBA_DISABLE_FILE_SYSTEM_CACHING=1
 
 RUN apt-get update && apt-get install -y python3 python3-pip git && rm -rf /var/lib/apt/lists/*
 WORKDIR /app
@@ -14,11 +15,12 @@ WORKDIR /app
 COPY requirements.txt /app/
 RUN python3 -m pip install --upgrade pip && pip3 install -r requirements.txt
 
-# ensure cache dirs exist & writable
+# ensure caches exist & are writable in Spaces container
 RUN mkdir -p /tmp/numba_cache /tmp/outlines_cache && chmod -R 777 /tmp/numba_cache /tmp/outlines_cache
 
 COPY app.py /app/
 
+# Spaces exposes the app on $PORT
 ENV PORT=7860
 EXPOSE 7860
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]