feat: add cpu sustained clock speed label to instance metadata #7043
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Description
Some workloads are sensitive to variations instance CPU clock speed - either preferring a specific threshold or at least ensuring consistency across replicas. This PR adds the EC2
SustainedClockSpeedInGhzvalue as a Karpenter label (karpenter.k8s.aws/instance-cpu-sustained-clock-speed-mhz) so that workloads can add their preference.The upstream value from the EC2 API is in Ghz and represented as a float (ie 2.4). nodeSelectors only support ints or strings and most use-cases for this will want to leverage the
GtorLtoperators to set minimum/maximum values. To make this usable, this implementation converts the Ghz value into Mhz and represents it as an int.How was this change tested?
make testDoes this change impact docs?
Do codegen docs count?
website/content/en/preview/reference/instance-types.mdhas been updated to reflect this new instance attribute.By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.