By upgrading your AKS cluster. The cluster upgrades automatically and then bring a new node online with the latest Ubuntu image and a new patch version or a minor Kubernetes version. For more information, see .
By using , an open-source reboot daemon for Kubernetes. Kured runs as a and monitors each node for the presence of a file that indicates that a reboot is required. Across the cluster, OS reboots are managed by the same as a cluster upgrade.