A set of Neutron drivers for the VMware NSX.
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# Copyright 2012 VMware, Inc.
# All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_config import cfg
from oslo_log import log as logging
import six
from vmware_nsx._i18n import _
from vmware_nsx.common import exceptions
LOG = logging.getLogger(__name__)
DEFAULT_PORT = 443
# Raise if one of those attributes is not specified
REQUIRED_ATTRIBUTES = ['default_tz_uuid', 'nsx_user',
'nsx_password', 'nsx_controllers']
# Emit an INFO log if one of those attributes is not specified
IMPORTANT_ATTRIBUTES = ['default_l3_gw_service_uuid']
# Deprecated attributes
DEPRECATED_ATTRIBUTES = ['metadata_dhcp_host_route',
'nvp_user', 'nvp_password', 'nvp_controllers']
class NSXCluster(object):
"""NSX cluster class.
Encapsulates controller connections and the API client for a NSX cluster.
Controller-specific parameters, such as timeouts are stored in the
elements of the controllers attribute, which are dicts.
"""
def __init__(self, **kwargs):
self._required_attributes = REQUIRED_ATTRIBUTES[:]
self._important_attributes = IMPORTANT_ATTRIBUTES[:]
self._deprecated_attributes = {}
self._sanity_check(kwargs)
for opt, val in six.iteritems(self._deprecated_attributes):
LOG.deprecated(_("Attribute '%s' has been deprecated or moved "
"to a new section. See new configuration file "
"for details."), opt)
depr_func = getattr(self, '_process_%s' % opt, None)
if depr_func:
depr_func(val)
# If everything went according to plan these two lists should be empty
if self._required_attributes:
raise exceptions.InvalidClusterConfiguration(
invalid_attrs=self._required_attributes)
if self._important_attributes:
LOG.info("The following cluster attributes were "
"not specified: %s'", self._important_attributes)
# The API client will be explicitly created by users of this class
self.api_client = None
def _sanity_check(self, options):
# Iterating this way ensures the conf parameters also
# define the structure of this class
for arg in cfg.CONF:
if arg not in DEPRECATED_ATTRIBUTES:
setattr(self, arg, options.get(arg, cfg.CONF.get(arg)))
self._process_attribute(arg)
elif options.get(arg) is not None:
# Process deprecated attributes only if specified
self._deprecated_attributes[arg] = options.get(arg)
def _process_attribute(self, attribute):
# Process the attribute only if it's not empty!
if getattr(self, attribute, None):
if attribute in self._required_attributes:
self._required_attributes.remove(attribute)
if attribute in self._important_attributes:
self._important_attributes.remove(attribute)
handler_func = getattr(self, '_process_%s' % attribute, None)
if handler_func:
handler_func()
def _process_nsx_controllers(self):
# If this raises something is not right, so let it bubble up
# TODO(salvatore-orlando): Also validate attribute here
for i, ctrl in enumerate(self.nsx_controllers or []):
if len(ctrl.split(':')) == 1:
self.nsx_controllers[i] = '%s:%s' % (ctrl, DEFAULT_PORT)
def _process_nvp_controllers(self):
self.nsx_controllers = self.nvp_controllers
self._process_nsx_controllers()