Does Flask Work With Kubernetes?

# app.py
from flask import Flask, jsonify
import os

app = Flask(__name__)

@app.route('/health')
def health():
    """Kubernetes liveness and readiness probe endpoint"""
    return jsonify({'status': 'healthy'}), 200

@app.route('/api/hello')
def hello():
    return jsonify({'message': 'Hello from Kubernetes!'}), 200

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000)

# Dockerfile
FROM python:3.11-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY app.py .
EXPOSE 5000
CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "app:app"]

# k8s-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: flask-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: flask-app
  template:
    metadata:
      labels:
        app: flask-app
    spec:
      containers:
      - name: flask
        image: myregistry/flask-app:latest
        ports:
        - containerPort: 5000
        livenessProbe:
          httpGet:
            path: /health
            port: 5000
          initialDelaySeconds: 10
          periodSeconds: 10
        readinessProbe:
          httpGet:
            path: /health
            port: 5000
          initialDelaySeconds: 5
          periodSeconds: 5