On 8/4/2017 8:41 AM, Tom Kennedy wrote:
Is there an Openstack document that shows how to extend openstack to do
something like this?
The create snapshot API is this in upstream Nova:
https://developer.openstack.org/api-ref/compute/#create-image-createimage-action
There is no distinction between a live and cold snapshot in the end user
REST API. That's dependent on the backend compute driver. For example,
the libvirt driver may attempt to perform a live snapshot if possible,
but falls back to a cold snapshot if that's not possible. Other drivers
could do the same.
As for the difference between the OpenStack concept of a snapshot and
the VMware concept of a snapshot, I don't know what that is, but I can
saw we wouldn't add a VMware-specific REST API for snapshots to the
compute API when we already have the createImage API. So some design
work would be involved if you wanted to upstream this.
For information on contributing features to Nova, you can start here:
https://docs.openstack.org/nova/latest/contributor/blueprints.html
--
Thanks,
Matt
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