HPA与VPA：Kubernetes自动扩缩容完全指南
categories: - Kubernetes运维 tags: - Kubernetes - HPA - VPA - 自动扩缩容 - 弹性
HorizontalPodAutoscaler (HPA)
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: 70
- type: Resource
resource:
name: memory
target:
type: Utilization
averageUtilization: 80
VerticalPodAutoscaler (VPA)
apiVersion: autoscaling.k8s.io/v1
kind: VerticalPodAutoscaler
metadata:
name: myapp-vpa
spec:
targetRef:
apiVersion: apps/v1
kind: Deployment
name: myapp
updatePolicy:
updateMode: Auto
管理命令
# 查看HPA
kubectl get hpa
# 查看VPA
kubectl get vpa
# 手动扩容
kubectl scale deployment myapp --replicas=5
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