init

.gitignore

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+__pycache__
+venv

Dockerfile

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+FROM python:3.7-alpine
+
+COPY requirements.txt /
+
+RUN pip install -r /requirements.txt
+
+COPY app.py app/app.py
+WORKDIR /app
+
+EXPOSE 8000
+
+#CMD ["gunicorn", "-b 0.0.0.0:8000", "-w 4", "app:app"]
+ENTRYPOINT ["gunicorn", "-b 0.0.0.0:8000", "-w 4", "app:app"]
+#CMD ["gunicorn", "-w 4", "app:app"]

app.py

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+from flask import Flask
+app = Flask(__name__)
+
+@app.route('/')
+def hello():
+    return "Hello There, World!"
+
+@app.route('/<name>')
+def hello_stranger(name=None):
+    return "Hello, %s!" % name
+
+if __name__ == '__main__':
+    app.run()

requirements.txt

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+click==7.1.2
+Flask==1.1.2
+gunicorn==20.0.4
+itsdangerous==1.1.0
+Jinja2==2.11.2
+MarkupSafe==1.1.1
+Werkzeug==1.0.1

service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+        name: test-service
+spec:
+        selector:
+                app: test-app
+        ports:
+                - protocol: TCP
+                  port: 80
+                  targetPort: 8000
+        type: LoadBalancer