CPU Based Scaling
With Horizontal Pod Autoscaling, Kubernetes automatically scales the number of pods in a replication controller, deployment or replica set based on observed CPU utilisation.
[code]$ kubectl get deployment
$ kubectl autoscale deployment <deployment-name> –min=2 –max=5 –cpu-percent=80
$ kubectl get hpa[/code]
So, now we have a hpa running for our deployment “tomcat02”. It compares the arithmetic mean of the pods’ CPU utilization with the target defined in Spec.
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