def teardown(cls, sdUUID, volUUID, justme=False):
"""
Deactivate volume and release resources.
Volume deactivation occurs as part of resource releasing.
If justme is false, the entire COW chain should be torn down.
"""
cls.log.info("Tearing down volume %s/%s justme %s" %
(sdUUID, volUUID, justme))
lvmActivationNamespace = rm.getNamespace(sc.LVM_ACTIVATION_NAMESPACE,
sdUUID)
rm.releaseResource(lvmActivationNamespace, volUUID)
if not justme:
try:
pvolUUID = getVolumeTag(sdUUID, volUUID, sc.TAG_PREFIX_PARENT)
except Exception as e:
# If storage not accessible or lvm error occurred
# we will failure to get the parent volume.
# We can live with it and still succeed in volume's teardown.
pvolUUID = sc.BLANK_UUID
cls.log.warn("Failure to get parent of volume %s/%s (%s)" %
(sdUUID, volUUID, e))
if pvolUUID != sc.BLANK_UUID:
cls.teardown(sdUUID=sdUUID, volUUID=pvolUUID, justme=False)
def teardown(cls, sdUUID, volUUID, justme=False):
"""
Deactivate volume and release resources.
Volume deactivation occurs as part of resource releasing.
If justme is false, the entire COW chain should be torn down.
"""
cls.log.info("Tearing down volume %s/%s justme %s"
% (sdUUID, volUUID, justme))
lvmActivationNamespace = rm.getNamespace(sc.LVM_ACTIVATION_NAMESPACE,
sdUUID)
rm.releaseResource(lvmActivationNamespace, volUUID)
if not justme:
try:
pvolUUID = getVolumeTag(sdUUID, volUUID, sc.TAG_PREFIX_PARENT)
except Exception as e:
# If storage not accessible or lvm error occurred
# we will failure to get the parent volume.
# We can live with it and still succeed in volume's teardown.
pvolUUID = sc.BLANK_UUID
cls.log.warn("Failure to get parent of volume %s/%s (%s)"
% (sdUUID, volUUID, e))
if pvolUUID != sc.BLANK_UUID:
cls.teardown(sdUUID=sdUUID, volUUID=pvolUUID, justme=False)
def testReleaseInvalidResource(self, tmp_manager):
with pytest.raises(ValueError):
rm.releaseResource("DONT_EXIST", "resource")
with pytest.raises(ValueError):
rm.releaseResource("storage", "DOT")
