cicd_yamls/deployments/flask-simple-ingress.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: flask-app
  namespace: nginx-app
  labels:
    app: flask-app
spec:
  replicas: 2
  selector:
    matchLabels:
      app: flask-app
  template:
    metadata:
      labels:
        app: flask-app
    spec:
      containers:
      - name: flask
        image: registry.cn-hangzhou.aliyuncs.com/zhongpengqun/wanderer:amd64-linux-python-3.10-slim
        ports:
        - containerPort: 8000
        env:
        - name: FLASK_APP
          value: "app.py"
        command:
        - sh
        - -c
        - |
          pip install flask && \
          echo '
          from flask import Flask
          app = Flask(__name__)
          
          @app.route("/")
          def hello():
              return "<h1>Hello from Flask on port 8000!</h1>"
          
          @app.route("/hello")
          @app.route("/hello/")
          def hello_path():
              return "<h1>Hello from Flask /hello path! This redirects to root.</h1>"
          
          if __name__ == "__main__":
              app.run(host="0.0.0.0", port=8000)
          ' > /app.py && \
          python /app.py
        resources:
          requests:
            memory: "10Mi"
            cpu: "10m"
          limits:
            memory: "32Mi"
            cpu: "50m"

---
apiVersion: v1
kind: Service
metadata:
  name: flask-service
  namespace: nginx-app
  labels:
    app: flask-app
spec:
  selector:
    app: flask-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 8000
  type: ClusterIP

---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: flask-ingress
  namespace: nginx-app
  annotations:
    kubernetes.io/ingress.class: "traefik"
spec:
  rules:
  - host: 215.9981.tech
    http:
      paths:
      - path: /hello
        pathType: Prefix
        backend:
          service:
            name: flask-service
            port:
              number: 80