Update Dockerfile

Dockerfile

@@ -1,6 +1,10 @@
 # Use Python 3.9 slim image as base
 FROM python:3.9-slim
 
+# Install tini for proper signal handling and process reaping
+# This is crucial for ensuring Streamlit stays alive as the main process
+RUN apt-get update && apt-get install -y tini && rm -rf /var/lib/apt/lists/*
+
 # Set working directory
 WORKDIR /app
 
@@ -43,5 +47,5 @@ ENV STREAMLIT_SERVER_PORT=7860
 ENV STREAMLIT_SERVER_HEADLESS=true
 ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
 
-# Command to run the application - updated for robustness
-CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0", "--server.enableCORS=false", "--server.enableXsrfProtection=false"]
+# Command to run the application using tini
+CMD ["/usr/bin/tini", "--", "streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0", "--server.enableCORS=false", "--server.enableXsrfProtection=false"]