sourceSnapshot property
The source snapshot to create this disk.
When creating a new instance boot disk, one of initializeParams.sourceSnapshot or initializeParams.sourceImage or disks.source is required. To create a disk with a snapshot that you created, specify the snapshot name in the following format: global/snapshots/my-backup If the source snapshot is deleted later, this field will not be set. Note: You cannot create VMs in bulk using a snapshot as the source. Use an image instead when you create VMs using the bulk insert method.
Implementation
core.String? sourceSnapshot;