Create docker file

docker file

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+    # Use an official Python runtime as a parent image
+    FROM python:3.9-slim-buster
+
+    # Set the working directory in the container to /app
+    WORKDIR /app
+
+    # Copy the requirements file to the container at /app
+    COPY requirements.txt /app
+
+    # Install any needed packages specified in requirements.txt
+    RUN pip install --no-cache-dir -r requirements.txt
+
+    # Copy the application code to the container at /app
+    COPY . /app
+
+    # Make port 8080 available to the world outside this container
+    EXPOSE 8080
+
+    # Run app.py when the container launches
+    CMD ["python", "app.py"]
+