The next goal is to "break" the cluster. By gradually increasing the number of replicas of the deployment that sends requests to the php-apache application, one finds the breaking point, which obviously grows as the flavor of the VMs grows.
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$ kubectl autoscale deployment php-apache --cpu-percent=50 --min=1 --max=200
$ kubectl scale deploy infinite-calls --replicas=50
$ kubectl get hpa --watch |