Add all deployment files

Dockerfile

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+FROM python:3.10-slim
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app.py .
+
+CMD ["python", "app.py"]

app.py

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+from flask import Flask
+
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    return {"Hello": "World!"}
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=7860)

requirements.txt

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+flask