# 샘플 앱: 요청을 받은 파드 이름·IP 를 그대로 돌려주는 whoami. 로드밸런싱이 눈에 보인다
apiVersion: v1
kind: Namespace
metadata:
  name: demo
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: whoami
  namespace: demo
spec:
  replicas: 2
  selector:
    matchLabels: { app: whoami }
  template:
    metadata:
      labels: { app: whoami }
    spec:
      containers:
        - name: whoami
          image: traefik/whoami:v1.11
          ports: [{ containerPort: 80 }]
          resources:
            requests: { cpu: 10m, memory: 16Mi }
            limits: { cpu: 100m, memory: 64Mi }
---
apiVersion: v1
kind: Service
metadata:
  name: whoami
  namespace: demo
spec:
  selector: { app: whoami }
  ports: [{ port: 80, targetPort: 80 }]
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: whoami
  namespace: demo
spec:
  ingressClassName: nginx
  rules:
    - http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service: { name: whoami, port: { number: 80 } }