def _load_backend_info(_connection_info, _alba_backend_guid):
client = OVSClient(ip=_connection_info['host'],
port=_connection_info['port'],
credentials=(_connection_info['username'], _connection_info['password']),
version=3)
try:
info = client.get('/alba/backends/{0}/'.format(_alba_backend_guid),
params={'contents': 'local_summary'})
with lock:
return_value[_alba_backend_guid].update(info['local_summary'])
except NotFoundException:
return_value[_alba_backend_guid]['error'] = 'backend_deleted'
except ForbiddenException:
return_value[_alba_backend_guid]['error'] = 'not_allowed'
except Exception as ex:
return_value[_alba_backend_guid]['error'] = 'unknown'
AlbaBackend._logger.exception('Collecting remote ALBA backend information failed with error: {0}'.format(ex))
def _load_backend_info(_connection_info, _alba_backend_guid, _exceptions):
# '_exceptions' must be an immutable object to be usable outside the Thread functionality
client = OVSClient(ip=_connection_info['host'],
port=_connection_info['port'],
credentials=(_connection_info['username'], _connection_info['password']),
version=3)
try:
new_guids = client.get('/alba/backends/{0}/'.format(_alba_backend_guid),
params={'contents': 'linked_backend_guids'})['linked_backend_guids']
with lock:
guids.update(new_guids)
except NotFoundException:
pass # ALBA Backend has been deleted, we don't care we can't find the linked guids
except ForbiddenException as fe:
AlbaBackend._logger.exception('Collecting remote ALBA backend information failed due to permission issues. {0}'.format(fe))
_exceptions.append('not_allowed')
except Exception as ex:
AlbaBackend._logger.exception('Collecting remote ALBA backend information failed with error: {0}'.format(ex))
_exceptions.append('unknown')
def list(self, backend_type=None, ip=None, port=None, client_id=None, client_secret=None, contents=None):
"""
Overview of all backends (from a certain type, if given) on the local node (or a remote one)
"""
if ip is None:
if backend_type is None:
return BackendList.get_backends()
return BackendTypeList.get_backend_type_by_code(backend_type).backends
client = OVSClient(ip, port, client_id, client_secret)
try:
remote_backends = client.get(
"/backends/", params={"backend_type": backend_type, "contents": "" if contents is None else contents}
)
except (HTTPError, URLError):
raise NotAcceptable("Could not load remote backends")
backend_list = []
for entry in remote_backends["data"]:
backend = type("Backend", (), entry)()
backend_list.append(backend)
return backend_list
