# 对应文档：docs/04-02-nodejs-镜像与运行命令.md
# 累积：04-01 + 固定镜像 tag、imagePullPolicy、command/args
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nodejs-demo
  namespace: default
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nodejs-demo
  template:
    metadata:
      labels:
        app: nodejs-demo
    spec:
      containers:
        - name: nodejs-demo
          image: node:18.20-alpine
          imagePullPolicy: IfNotPresent
          command: ["node"]
          args:
            - "-e"
            - "require('http').createServer((req,res)=>res.end('Hello from pinned image')).listen(3000)"
          ports:
            - containerPort: 3000
---
apiVersion: v1
kind: Service
metadata:
  name: nodejs-demo
  namespace: default
spec:
  selector:
    app: nodejs-demo
  ports:
    - port: 80
      targetPort: 3000
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: nodejs-demo
  namespace: default
  annotations:
    traefik.ingress.kubernetes.io/router.entrypoints: web
spec:
  rules:
    - http:
        paths:
          - path: /node
            pathType: Prefix
            backend:
              service:
                name: nodejs-demo
                port:
                  number: 80