OpenStack Compute (nova)

  1. Bug #1562681
  2. Comment #7

Comment 7 for bug 1562681

Revision history for this message
Sylvain Bauza (sylvain-bauza) wrote : Re: instance evacuate without image's metadata

Looking at https://github.com/openstack/nova/blob/0315d46766fa4357c6608541be39aada4eb5941d/nova/compute/manager.py#L2878-L2890

It seems that when the instance is on shared storage, we're creating a new ImageMeta object from an empty dict, instead of trying to get the older image metadata (only if image_ref is None)

But, there is a flaw, evacuate is called by the compute API with setting image_ref=None.
https://github.com/openstack/nova/blob/6464c0a4c788df816b33a63c6d2bf2c61349f052/nova/compute/api.py#L3514

So there is litterally no way to get the previous image_ref when evacuating a shared-storage-backed instance because we don't use it.