문제 6: 실전형 Deployment

다음 조건을 만족하는 Deployment YAML을 작성하시오:

• 이름: web-deploy
• 레플리카 수: 2
• 라벨: app=web, tier=frontend
• 컨테이너 이름: web-container
• 이미지: nginx:1.25
• 컨테이너 포트: 80
• 환경 변수 MODE, DEBUG는 ConfigMap web-config에서 가져올 것
• readinessProbe: HTTP GET /healthz, 포트 80, 초기 지연 5초, 주기 10초

 

apiVersion: apps/v1
kind: Deployment
metadata:
  name: web-deploy
spec:
  replicas: 2
  selector:
    matchLabels:
      app: web
      tier: frontend
  template:
    metadata:
      labels:
        app: web
        tier: frontend
    spec:
      containers:
      - name: web-container
        image: nginx:1.25
        port:
          containerPort: 80
        env:
        - name: MODE
          valueFrom:
            configMapKeyRef:
              name: web-config
        - name: DEBUG
          valueFrom:
            configMapKeyRef:
              name: web-config
        readinessProbe:
          httpGet:
            path: /healthz
            port: 80
          initialDelaySeconds: 5
          periodSeconds: 10

 

부족한 부분

• port → ports
• configMapKeyRef에 key 누락!! 

정답

apiVersion: apps/v1
kind: Deployment
metadata:
  name: web-deploy
spec:
  replicas: 2
  selector:
    matchLabels:
      app: web
      tier: frontend
  template:
    metadata:
      labels:
        app: web
        tier: frontend
    spec:
      containers:
      - name: web-container
        image: nginx:1.25
        ports:
        - containerPort: 80
        env:
        - name: MODE
          valueFrom:
            configMapKeyRef:
              name: web-config
              key: MODE
        - name: DEBUG
          valueFrom:
            configMapKeyRef:
              name: web-config
              key: DEBUG
        readinessProbe:
          httpGet:
            path: /healthz
            port: 80
          initialDelaySeconds: 5
          periodSeconds: 10