Get all upgrade versions
az aks get-upgrades --resource-group=$KUBE_GROUP --name=$KUBE_NAME --output table
az aks nodepool get-upgrades --nodepool-name nodepool2 --resource-group=$KUBE_GROUP --cluster-name=$KUBE_NAME
Perform upgrade
az aks nodepool show --resource-group=$KUBE_GROUP --cluster-name=$KUBE_NAME --name nodepool1 --query nodeImageVersion
az aks upgrade --resource-group=$KUBE_GROUP --name=$KUBE_NAME --kubernetes-version 1.22.6
az aks nodepool upgrade --name nodepool2 --resource-group=$KUBE_GROUP --cluster-name=$KUBE_NAME --kubernetes-version 1.22.6
az aks upgrade --resource-group=$KUBE_GROUP --name=$KUBE_NAME --node-image-only
az aks update -g $KUBE_GROUP -n $KUBE_NAME --auto-upgrade-channel stable # patch stable rapid node-image
az aks update -g $KUBE_GROUP -n $KUBE_NAME --auto-upgrade-channel node-image
az aks maintenanceconfiguration add -g $KUBE_GROUP --cluster-name $KUBE_NAME -n default --weekday Tuesday --start-hour 12