Once your “template” VM has been powered off following sysprep you will want to push the associated disk image to the Image Service for our cluster
Using an SSH client, execute the following:
> acli <acropolis> image.create <IMAGE-NAME> clone_from_vmdisk=vm:<VM-NAME>:scsi.0 image_type=kDiskImage annotation="<IMAGE-ANNOTATION>"
Verify in Prism that the image is available and in an Active state.