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The tests will be performed on a cluster consisting of 4 nodes (1 master and 3 worker) with the same flavor. The flavor will also be modified in turn, remaining the same between the VMs in the cluster, multiplying the CPU and RAM by a factor of 2: passing from medium (2 CPUs and 4GB RAM) to large (4 CPUs and 8GB RAM) and finally xlarge (8 CPUs and 16GB RAM). Finally, the clusters used for the tests are set to "factory settings", ie i.e. they will contain only the starting software of a typical k8s cluster just created. Before we continue, let's familiarize ourselves with a couple of tools suitable for our purposes: Metrics Server and Horizontal Pod Autoscaler.
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