[Feature] Karpenter supports Confidential VMs

[wdarko1]

Tell us about your request

Support for Confidential VMs in Azure Karpenter Provider.

Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?

Confidential VMs offer an additional layer of secure computing. The provider codebase currently checks for Confidential VM sizes EC or DC and restricts them.

// confidential VMs (DC, EC) are not yet supported by this Karpenter provider

func (p *DefaultProvider) isConfidential(sku *skewer.SKU) bool {

                size := sku.GetSize()

                return strings.HasPrefix(size, "DC") || strings.HasPrefix(size, "EC")

}

Source:

karpenter-provider-azure/pkg/providers/instancetype/instancetypes.go at main · Azure/karpenter-provider-azure

Are you currently working around this issue?

There is no current work around in using Karpenter with Confidential VMs.

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