apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
  name: seckill
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: seckill
  pollingInterval: 15
  minReplicaCount: 2 # Keep at least 2 replicas
  maxReplicaCount: 1000
  advanced:
    horizontalPodAutoscalerConfig:
      behavior: # Control scaling behavior by using a conservative approach of quick scaling out and slow scaling in
        scaleDown: # Slow scaling in: A period of at least 10 minutes is required before scaling in
          stabilizationWindowSeconds: 600
          policies:
            - type: Percent
              value: 100
              periodSeconds: 15
        scaleUp: # Quick scaling out: Allow scaling out up to 5 times every 15s
          policies:
            - type: Percent
              value: 500
              periodSeconds: 15
  triggers:
    - type: cron # Ensure at least 200 replicas within half an hour before and after the flash sales activity every morning at 10 am
      metadata:
        timezone: Asia/Shanghai
        start: 30 9 * * *
        end: 30 10 * * *
        desiredReplicas: "200"
    - type: cron # Ensure at least 200 replicas within half an hour before and after the flash sales activity every evening at 6 pm
      metadata:
        timezone: Asia/Shanghai
        start: 30 17 * * *
        end: 30 18 * * *
        desiredReplicas: "200"
    - type: memory # Scale up when the CPU utilization exceeds 60%
      metricType: Utilization
      metadata:
        value: "60"
    - type: cpu # Scale up when the memory utilization exceeds 60%
      metricType: Utilization
      metadata:
        value: "60"