up docker

Dockerfile

@@ -7,15 +7,19 @@ WORKDIR /app
 COPY ./requirements.txt /app/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
 
+# Set environment variable for NLTK data (before downloading)
+ENV NLTK_DATA=/app/nltk_data
+
+# Create NLTK data directory and download required data
+RUN mkdir -p /app/nltk_data && \
+    python -c "import nltk; nltk.download('twitter_samples', download_dir='/app/nltk_data'); nltk.download('stopwords', download_dir='/app/nltk_data')"
+
 # Copy source code
 COPY . /app
 
 # Ensure run.sh is executable
 RUN chmod +x /app/run.sh
 
-# Set environment variable for NLTK data
-ENV NLTK_DATA=/tmp/nltk_data
-
 # Expose the port for Chainlit
 EXPOSE 8000