def __get_volume(self, volume_id, config=None):
"""
Returns:
Volume object
Raises:
VolumeDoesNotExist
"""
if config is None:
config = self.__read_cache_file()
try:
size, storageAdapter, adapterVolume, persistent, shared = \
config.get(self.VOLUME_SECTION_NAME, volume_id).split()
return Volume(volume_id=volume_id.lower(),
size=int(size),
storageAdapter=storageAdapter,
adapterVolume=adapterVolume,
persistent=persistent.lower() == 'true',
shared=shared.lower() == 'true')
except (configparser.NoOptionError, configparser.NoSectionError):
raise VolumeDoesNotExist('Volume [%s] does not exist' %
(volume_id))
except ValueError:
raise VolumeDoesNotExist('Volume [%s] entry malformed' %
(volume_id))
def addStorageVolume(self, nodeName, volume, isDirect="DEFAULT"):
"""
Raises:
VolumeDoesNotExist
UnsupportedOperation
"""
node = self.getNode(nodeName, {'hardwareprofile': True})
# Only allow persistent volumes to be attached...
vol = self._san.getVolume(volume)
if vol is None:
raise VolumeDoesNotExist('Volume [%s] does not exist' % (volume))
if not vol.getPersistent():
raise UnsupportedOperation(
'Only persistent volumes can be attached')
api = resourceAdapterFactory.getApi(
node.getHardwareProfile().getResourceAdapter().getName())
if isDirect == "DEFAULT":
return api.addVolumeToNode(node, volume)
return api.addVolumeToNode(node, volume, isDirect)
def __getVolumeHelper(self, queryVolume=None):
"""
Returns a list of 0 or more volumes if 'queryVolume' is None, otherwise
returns a list containing the requested volume. Raises exception if
'queryVolume' is set and no volumes match.
Raises:
VolumeDoesNotExist
"""
config = self.__read_cache_file()
volumes = TortugaObjectList()
if not config.has_section(self.VOLUME_SECTION_NAME):
return volumes
for item in config.items(self.VOLUME_SECTION_NAME):
volume = item[0]
volinfo = self.__get_volume(volume, config)
if queryVolume:
if volume == queryVolume.lower():
volumes.append(volinfo)
break
else:
volumes.append(volinfo)
if not volumes and queryVolume is not None:
raise VolumeDoesNotExist('Volume [%s] does not exist' %
(queryVolume.lower()))
return volumes
def removeStorageVolume(self, nodeName, volume):
"""
Raises:
VolumeDoesNotExist
UnsupportedOperation
"""
node = self.getNode(nodeName, {'hardwareprofile': True})
api = resourceAdapterFactory.getApi(
node.getHardwareProfile().getResourceAdapter().getName())
vol = self._san.getVolume(volume)
if vol is None:
raise VolumeDoesNotExist('The volume [%s] does not exist' %
(volume))
if not vol.getPersistent():
raise UnsupportedOperation(
'Only persistent volumes can be detached')
return api.removeVolumeFromNode(node, volume)