Preview: VM Extension Manager lets you manage Compute Engine

## Feature Feature **Preview**: VM Extension Manager lets you manage Compute Engine guest agent extensions on your virtual machines (VMs). You can use VM Extension Manager to install and manage extensions, such as Ops Agent and Agent for SAP, on your Compute Engine VMs at scale, without connecting to each VM. Use VM Extension Manager to create policies that install extensions on your VMs. You can install extensions based on a specific criteria, such as VM labels, for both existing and new VMs that match the criteria. VM Extension Manager automates the lifecycle of extensions across your entire fleet of VMs and monitors their health status while they are running. For more information, see the following: * [About VM Extension Manager](https://cloud.google.com/compute/docs/vm-extensions/about-vm-extension-manager) * [Install VM extensions by creating extension policies](https://cloud.google.com/compute/docs/vm-extensions/create-extension-policy) * [Manage VM extensions by using extension policies](https://cloud.google.com/compute/docs/vm-extensions/manage-vm-extensions)