Update Dockerfile

Dockerfile

@@ -1,32 +1,29 @@
-FROM python:3.8
+# Use the base Python image
+FROM docker.io/library/python:3.8@sha256:01a4da15f16395a2d17dd9b673ccedcd6a6dbb4e130c8056d0d804dedac11c81
 
-# Set working directory
+# Set the working directory
 WORKDIR /app
 
-# Set environment variables
-ENV TRANSFORMERS_CACHE="/tmp/transformers_cache"
-ENV NLTK_DATA="/tmp/nltk_data"
+# Restore cache if available
+RUN mkdir -p /tmp/nltk_data
 
-# Create NLTK data directory
-RUN mkdir -p $NLTK_DATA
+# Set environment variable for NLTK data
+ENV NLTK_DATA /tmp/nltk_data
 
-# Install NLTK
+# Install NLTK and dependencies
 RUN pip install nltk
 
-# Install NLTK data
-RUN python -m nltk.downloader vader_lexicon -d $NLTK_DATA
-
-# Copy requirements.txt
+# Copy the requirements file
 COPY requirements.txt requirements.txt
 
-# Install dependencies
+# Install Python dependencies
 RUN pip install -r requirements.txt
 
-# Copy the rest of the application
+# Copy the rest of the application code
 COPY . .
 
-# Expose port 5000
-EXPOSE 5000
+# Set permissions for the /tmp/nltk_data directory
+RUN chmod -R 777 /tmp/nltk_data
 
-# Run the application
+# Application startup command
 CMD ["python", "app.py"]