1
watch -d kubectl get hpa,no,deploy,svc,pods --kubeconfig="/root/kubeconfig.yaml"

k get pods -n kube-system




2

# 1. 테스트 Deployment 생성



cat <<'YAML' > deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: myapp
spec:
  replicas: 2
  selector:
    matchLabels:
      app: myapp
  template:
    metadata:
      labels:
        app: myapp
    spec:
      containers:
      - name: myapp
        image: nginx
        ports:
        - containerPort: 80
        resources:
          requests:
            cpu: "200m"
            memory: "256Mi"
          limits:
            cpu: "500m"
            memory: "512Mi"
YAML


k apply -f deployment.yaml

# kubectl apply -f deployment.yaml


deployment.apps/myapp                 2/2     2            2           11s








3


# 2. LoadBalancer 서비스 생성


cat <<'YAML' > service.yaml
apiVersion: v1
kind: Service
metadata:
  name: myapp-svc
spec:
  type: LoadBalancer
  selector:
    app: myapp
  ports:
  - port: 80
    targetPort: 80
YAML


k apply -f service.yaml



# kubectl apply -f service.yaml


service/myapp-svc             LoadBalancer   198.19.179.38    default-myapp-svc-037d4-133214676-6848656ec63b.kr.lb.naverncp.com         80:31963/TCP   53s


(3분후 웹접속)




4

# 3. HPA 생성


cat <<'YAML' > hpa.yaml
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: myapp-hpa
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: myapp
  minReplicas: 2
  maxReplicas: 10
  metrics:
  - type: Resource
    resource:
      name: cpu
      target:
        type: Utilization
        averageUtilization: 60
YAML


k apply -f hpa.yaml



# kubectl apply -f hpa.yaml


horizontalpodautoscaler.autoscaling/myapp-hpa   Deployment/myapp   cpu: 0%/60%   2         10        2          24s






5


dnf install -y httpd-tools

ab -n 10000 -c 100 http://LB주소/

ab -n 10000 -c 100 http://default-myapp-svc-037d4-133214676-6848656ec63b.kr.lb.naverncp.com/



6
wget https://hey-release.s3.us-east-2.amazonaws.com/hey_linux_amd64

chmod +x hey_linux_amd64

./hey_linux_amd64 -z 2m -c 200 http://LB주소/

2분 동안
동시 200 요청


./hey_linux_amd64 -z 20m -c 2000 http://default-myapp-svc-037d4-133214676-6848656ec63b.kr.lb.naverncp.com/