Kubernetes 배포 패키지 (Deployment/Service/Ingress)

애플리케이션을 배포하기 위한 기본적인 Kubernetes 리소스 모음입니다. 무중단 배포를 위한 Deployment, 서비스 노출을 위한 Service, 외부 접속을 위한 Ingress를 포함합니다.

kubernetesk8sdeploymentingress
Gist 
# 1. Deployment
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
  labels:
    app: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: my-app
        image: my-registry/my-app:latest
        ports:
        - containerPort: 3000
        resources:
          limits:
            cpu: "500m"
            memory: "512Mi"
          requests:
            cpu: "250m"
            memory: "256Mi"
        livenessProbe:
          httpGet:
            path: /health
            port: 3000
          initialDelaySeconds: 15
          periodSeconds: 20
        readinessProbe:
          httpGet:
            path: /ready
            port: 3000
          initialDelaySeconds: 5
          periodSeconds: 10

---
# 2. Service
apiVersion: v1
kind: Service
metadata:
  name: my-app-service
spec:
  selector:
    app: my-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 3000
  type: ClusterIP

---
# 3. Ingress
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-app-ingress
  annotations:
    kubernetes.io/ingress.class: nginx
    cert-manager.io/cluster-issuer: "letsencrypt-prod"
spec:
  tls:
  - hosts:
    - app.example.com
    secretName: app-tls
  rules:
  - host: app.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: my-app-service
            port:
              number: 80