docs: RFC for reboot as a node action in karpenter - #3259
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This was referenced Aug 26, 2026
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Description
This PR adds a design RFC (
designs/reboot-node-action.md) proposingRebootas a first-class Node action in Karpenter.Problem
Today Karpenter can only replace unhealthy nodes. Often times, it is not the correct remediation and a reboot would be better. There is no reboot verb in the
CloudProviderinterface today.Proposal
Add a provider-neutral
CloudProvider.Rebootprimitive and a controller that drives reboot from request to a terminal outcome.The RFC defines the core/provider contract, forceful vs graceful reboot behavior, restart safety, recovery semantics, provisioning suppression, and observability.
Related issues
How was this change tested?
N/A — documentation/design only.
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.