modified dockerfile

Dockerfile

@@ -1,7 +1,8 @@
 FROM python:3.11-alpine
 
 ENV PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONUNBUFFERED=1
+    PYTHONUNBUFFERED=1 \
+    NLTK_DATA=/app/nltk_data
 
 WORKDIR /app
 
@@ -24,12 +25,15 @@ RUN python -m pip install --upgrade pip setuptools wheel
 COPY requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir -r /app/requirements.txt
 
+# pre-download NLTK models into writable dir
+RUN python -c "import nltk; nltk.download('punkt', download_dir='/app/nltk_data'); nltk.download('averaged_perceptron_tagger_eng', download_dir='/app/nltk_data')"
+
 # remove build deps to slim image
 RUN apk del .build-deps
 
 # copy app and rag file
 COPY . /app
 
-EXPOSE 7648
+EXPOSE 7860
 
-CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7648"]
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]