Added Dockerfile

Dockerfile

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+# Use an official Python runtime as a parent image
+FROM python:3.9-slim
+
+# Set environment variables
+ENV EXAMPLE 1
+ENV EXAMPLE 2
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update \
+	&& apt-get install -y --no-install-recommends gcc \
+	&& rm rf  /var/lib/apt/lists/*
+
+# Install application dependencies
+COPY requirements.txt /app/
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the current directory contents into the container at /app
+COPY . /app/
+
+# Expose the port the app runs on
+EXPOSE 5000
+
+# Run the application
+CMD ["python", "app.py"]