Kubernetes: autoscaler

VerticalPodAutoscaler

• 리소스를 추가한 파드를 생성하여 기존 파드를 대체

HorizontalPodAutoscaler

• 동일한 파드를 생성/삭제하여 스케일링
• ex

	---
	apiVersion: v1
	kind: Service
	metadata:
	  name: read-front
	spec:
	  ports:
	    - name: grpc
	      port: 50000
	      protocol: TCP
	  selector:
	    app: read-front

	---
	apiVersion: autoscaling/v2beta2
	kind: HorizontalPodAutoscaler
	metadata:
	  name: xxx
	  namespace: default
	spec:
	  scaleTargetRef:
	    apiVersion: apps/v1
	    kind: Deployment
	    name: deployment-name
	  minReplicas: 1
	  maxReplicas: 10
	  metrics:
	    - type: Resource
	      resource:
	        name: cpu
	        target:
	          type: Utilization
	          averageUtilization: 50
	    - type: Resource
	      resource:
	        name: memory
	        target:
	          type: AverageValue
	          averageValue: 100Mi
	    - type: Pods
	      pods:
	        metric:
	          name: packets-per-second
	        target:
	          type: AverageValue
	          averageValue: 1k
	    - type: Object
	      object:
	        metric:
	          name: requests-per-second
	        describedObject:
	          apiVersion: networking.k8s.io/v1beta1
	          kind: Ingress
	          name: main-route
	        target:
	          type: Value
	          value: 1k