Storage: Cloning for VMware Datastore backed disks
Glance provides support for the VMware datastore as a backend storage [1]. The Nova VMware driver should take advantage of it by copying the bits of a given image instead of downloading them over the network when spawning a virtual machine.
For snapshots, it will possible to register the location of the bits for a given Glance image instead of uploading the bits.
The image handler framework enables transferring an image from glance to an abstract backend, not just a local file, so use that to implement cloning by adding a handler that detects when vsphere is in use by both nova and glance, and creates a clone instead of downloading the image to a file.
See blueprint [2] implementing the same logic for libvirt/rbd.
[1] https:/
[2] https:/
Blueprint information
- Status:
- Started
- Approver:
- Joe Gordon
- Priority:
- Undefined
- Drafter:
- Arnaud Legendre
- Direction:
- Needs approval
- Assignee:
- Arnaud Legendre
- Definition:
- New
- Series goal:
- None
- Implementation:
-
Started
- Milestone target:
- None
- Started by
- Arnaud Legendre
- Completed by
Related branches
Related bugs
Sprints
Whiteboard
Gerrit topic: https:/
Addressed by: https:/
VMware: Use the image handler to fetch images
Addressed by: https:/
VMware copy image handler
We are currently in the Icehouse Feature Freeze, please submit patches in the Juno timeframe. You also need to get this blueprint approved. --johnthetubaguy
Addressed by: https:/
VMware: Clone snapshots to the Glance datastore
Removed from next, as next is now reserved for near misses from the last milestone --johnthetubagu
Addressed by: https:/
VMware: Use the image handler to fetch images
Addressed by: https:/
VMware copy image handler
We are currently in the Icehouse Feature Freeze, please submit patches in the Juno timeframe. You also need to get this blueprint approved. --johnthetubaguy
Addressed by: https:/
VMware: Clone snapshots to the Glance datastore
Removed from next, as next is now reserved for near misses from the last milestone --johnthetubaguy
If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)
Addressed by: https:/
Propose: Cloning for VMware Datastore backed disks
Work Items
Dependency tree
* Blueprints in grey have been implemented.
