CmdID / az / az vmss / az vmss extension
az vmss extension set
Add an extension to a VMSS or update an existing extension. Azure CLI reference
3 options Its page in the Azure CLI reference
Options
--extension-instance-nameName of extension instance, which can be customized.--force-updateforce to update even if the extension configuration has not changed.--provision-after-extensionsSpace-separated list of extension names after which this extension should be provisioned.