def create_backup_be(self, be_name=None):
"""Create a backup BE if the BE being modified is the live one.
'be_name' is an optional string indicating the name to use
for the new backup BE."""
self.check_be_name(be_name)
if self.is_live_BE:
# Create a clone of the live BE, but do not mount or
# activate it. Do nothing with the returned snapshot
# name that is taken of the clone during beCopy.
ret, be_name_clone, not_used = be.beCopy()
if ret != 0:
raise api_errors.UnableToCopyBE()
if not be_name:
be_name = self.get_new_be_name(
suffix="-backup-1")
ret = be.beRename(be_name_clone, be_name)
if ret != 0:
raise api_errors.UnableToRenameBE(
be_name_clone, be_name)
elif be_name is not None:
raise api_errors.BENameGivenOnDeadBE(be_name)
def init_image_recovery(self, img, be_name=None):
"""Initialize for an update.
If a be_name is given, validate it.
If we're operating on a live BE then clone the
live BE and operate on the clone.
If we're operating on a non-live BE we use
the already created snapshot"""
self.img = img
if self.is_live_BE:
# Create a clone of the live BE and mount it.
self.destroy_snapshot()
self.check_be_name(be_name)
# Do nothing with the returned snapshot name
# that is taken of the clone during beCopy.
ret, self.be_name_clone, not_used = be.beCopy()
if ret != 0:
raise api_errors.UnableToCopyBE()
if be_name:
ret = be.beRename(self.be_name_clone, be_name)
if ret == 0:
self.be_name_clone = be_name
else:
raise api_errors.UnableToRenameBE(
self.be_name_clone, be_name)
if be.beMount(self.be_name_clone, self.clone_dir) != 0:
raise api_errors.UnableToMountBE(
self.be_name_clone, self.clone_dir)
# record the UUID of this cloned boot environment
not_used, self.be_name_clone_uuid = \
BootEnv.get_be_name(self.clone_dir)
# Set the image to our new mounted BE.
img.find_root(self.clone_dir, exact_match=True)
elif be_name is not None:
raise api_errors.BENameGivenOnDeadBE(be_name)
def init_image_recovery(self, img, be_name=None):
if be_name is not None:
raise api_errors.BENameGivenOnDeadBE(be_name)
def create_backup_be(be_name=None):
if be_name is not None:
raise api_errors.BENameGivenOnDeadBE(be_name)