A node pool needs to be upgraded to a newer OS image without upgrading the Kubernetes version. Which command does this?
- A az aks upgrade --kubernetes-version current
- B az aks nodepool upgrade --node-image-only (correct answer)
- C kubectl drain node && apt upgrade
- D az aks update --os-upgrade
Shortcut: az aks nodepool upgrade --node-image-only updates only the OS image (security patches) on nodes without changing the Kubernetes version.