It is sometimes useful for a cloud user to be able to
detach and attach the boot volume of an instance that
is not running. Currently nova does not allow this and
some operations assume it does not happen. This spec
proposes allowing the detach and attach of boot volumes
in the shelved_offloaded state and adding safeguards to
ensure it is safe.
blueprint detach-boot-volume
APIImpact
Change-Id: I8a0de69700e97e955a2358e4c97bd1d9b6e71117
7c53d056e2