Feature pages are design documents that developers have created while collaborating on oVirt.

Most of them areoutdated, but provide historical design context.

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Clone VM

Summary

Allow to simply and directly clone the VM.

Owner

Current status

  • Target Release: 3.6
  • Status: done

Background

Up until now there were the following ways to create a copy of a VM:

  • Make a template, make a new VM from this template
  • Make a snapshot and clone the snapshot

It would be useful to provide a way to clone a VM directly.

Implementation

All the logic is implemented in the CloneVmCommand class. Since it is very similar to cloning a VM from a snapshot, the common logic between the CloneVmCommand and AddVmFromSnapshotComman has been extracted to the common AddVmAndCloneImageCommand base class.

Frontend

As shown in the following picture a new action button called “Clone VM” has been added to webadmin/userportal virtual machines tab:

When clicked, a new window will be opened containing only the new name of the VM:

After clicking OK the clone of the VM will be made.

REST API

A new action has been created on the VM called “clone”. It takes only one parameter in the request body, the name. To clone a VM using the REST API send a POST request to:

/api/vms//clone with body containing: newName ## Testing ## Test Case 1 * Have a VM with no disks * Clone the VM * Verify the new VM has no disks * Verify all the parameters of the VM have been cloned ## Test Case 2 * Have a VM with one disk * Clone the VM * Verify the new VM has one disk * Verify all the parameters of the VM have been cloned ## Test Case 3 * Have a VM with two disks * Clone the VM * Verify the new VM has two disks * Verify all the parameters of the VM have been cloned ## Test Case 4 * Have a VM with an attached shared disk * Clone the VM * Verify the new VM has the disk attached as well