Update Dockerfile

Dockerfile

@@ -1,21 +1,11 @@
-# Use an official Python runtime as a parent image
-FROM python:3.8-slim-buster
+FROM python:3.9
 
-# Set the working directory to /app
 WORKDIR /app
 
-# Copy the current directory contents into the container at /app
-COPY . /app
+COPY . .
 
-# Install any needed packages specified in requirements.txt
-RUN pip install --trusted-host pypi.python.org -r requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt
 
+EXPOSE 5000
 
-# Make port 80 available to the world outside this container
-EXPOSE 80
-
-# Set the environment variable
-ENV NAME World
-
-# Run app.py when the container launches
-CMD ["python", "app.py"]
+CMD ["python", "app.py"]