lots of changes

app/Dockerfile

@@ -3,10 +3,11 @@ FROM python:3.9-slim
 WORKDIR /app
 
 COPY requirements.txt .
+
 RUN pip install --no-cache-dir -r requirements.txt
 
+RUN apt-get update && apt-get install -y iputils-ping telnet # Add these lines
+
 COPY . .
 
-EXPOSE 5000
-
 CMD ["python", "app.py"]