Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/vmware-image-cache-management.

Description:

At the moment there is an image cache. This is not managed at all and in time cached images may use of all of the disk space on the data store. The blueprint will enable one or more nova-compute instances to populate and age the cache.
The blueprint will deal with the following:
1. Refactor the file uploading to the cache: this has two parts. The first is uploading the images to a temporary folder. The second is copying from the temporary folder to the actual cache. In order to simplify the image cache management the image files will be stored in a folder that is named after the image reference id.
2. Aging of cached instances

Specification URL (additional information):

None