In this article we will look at how to inform Kubernetes about pods’ resources and how we can optimize for different scenarios.
A scenario that typically comes up is when a cluster has a bunch of pods where a lot of them are dormant, i.e. they don’t consume CPU or memory. Do we have to carve them a space they won’t use most of the time? The answer is no. As usual, it’s safer to provision capacity for a workload than relying on optimistic heuristic that not all workloads will require resources at the same time. So, we can configure Kubernetes optimistically or pessimistically.
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