This commit adds a new versioned api to the backup driver base
class which all backup driver implementations should use in order
to support backing up volume metadata as well as data. The general
rule here is that we backup all metadata from a set of db tables
and can then be selective about what we restore.
As part of this commit, Ceph backup driver implements the new api
to backup volume metadata (including glance metadata) thus
supporting restoring volumes as bootable.
It is expected that the other backup driver implementations will
follow suit and adopt this approach.
Code Review / openstack-build / cinder-build.git / commit