Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/transfer-instance-ownership. Description: We need provide a way to update the tenant id and owner id of an existing VM to allow we can delegate the VM to another tenant/project. Here we need consider only admin role will be allowed to do this, and if the network doesn't belong to the target tenant this should be denied. Specification URL (additional information): None