init from docs

Dockerfile

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+FROM python:3.8-slim
+
+WORKDIR /usr/src/app
+COPY . .
+RUN pip install --no-cache-dir gradio
+EXPOSE 7860
+ENV GRADIO_SERVER_NAME="0.0.0.0"
+
+CMD ["python", "app.py"]

app.py

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+import gradio as gr
+
+def greet(name):
+    return f"Hello {name}!"
+
+iface = gr.Interface(fn=greet, inputs="text", outputs="text").launch()