Prepare the clone
Use the virt-sysprep command to reset a virtual machine. The virtual machine must be shut down before you use this command.
virt-sysprep --connect qemu:///system -d centos7-gold
Create the clone
Use the virt-clone command to create a clone of an existing virtual machine.
virt-clone --original centos7-gold --name centos7-01 --auto-clone