Create Dockerfile

Dockerfile

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+# Use an official Python runtime as a parent image
+FROM python:3.8-slim-buster
+# Set the working directory in the container to /app
+WORKDIR /app
+# Copy the current directory contents into the container at /app
+ADD . /app
+# Install any needed packages specified in requirements.txt
+RUN pip install --no-cache-dir opencv-python-headless pytesseract flask
+# Make port 5000 available to the world outside this container
+EXPOSE 5000
+# Run app.py when the container launches
+CMD ["python", "app.py"]