ff5ebec12c
This patch adds support for trunk extensions in the NSXv3
plugin.
Now you can create trunk and subports which map to CIF
on the backend.
i.e. trunk port <-> parent port and subport <-> child port
on the backend.
If backend fails to update subports, the status of trunk will be set
to ERROR.
Use OSC commands for trunk CRUD operations.
For e.g.
Create trunk with a subport:
openstack network trunk create --parent-port <parent-port>
--subport port=child-port,segmentation-type=vlan,segmentation-id=200
TRUNK_NAME
Delete trunk:
openstack network trunk delete TRUNK_NAME
Change-Id: Iedd47d868d803ca8c52856554885fd7d14668924
189 lines
7.8 KiB
Python
189 lines
7.8 KiB
Python
# Copyright 2016 VMware, Inc.
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#
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_utils import excutils
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from neutron.callbacks import events
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from neutron.callbacks import registry
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from neutron.extensions import portbindings
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from neutron.services.trunk import constants as trunk_consts
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from neutron.services.trunk.drivers import base
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from vmware_nsx._i18n import _LE
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from vmware_nsx.common import nsx_constants as nsx_consts
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from vmware_nsx.common import utils as nsx_utils
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from vmware_nsx.db import db as nsx_db
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from vmware_nsx.nsxlib.v3 import exceptions as nsxlib_exc
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from vmware_nsx.nsxlib.v3 import resources as nsx_resources
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LOG = logging.getLogger(__name__)
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SUPPORTED_INTERFACES = (
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portbindings.VIF_TYPE_OVS,
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)
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SUPPORTED_SEGMENTATION_TYPES = (
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trunk_consts.VLAN,
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)
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class NsxV3TrunkHandler(object):
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"""Class to handle trunk events."""
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def __init__(self, plugin_driver):
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self.plugin_driver = plugin_driver
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#TODO(abhiraut): Refactor nsxlib code and reuse here.
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def _build_switching_profile_ids(self, profiles):
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switch_profile_ids = []
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for profile in profiles:
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switch_profile = nsx_resources.SwitchingProfileTypeId(
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profile_type=profile['key'],
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profile_id=profile['value'])
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switch_profile_ids.append(switch_profile)
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return switch_profile_ids
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def _update_port_at_backend(self, context, parent_port_id, subport):
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# Retrieve the child port details
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child_port = self.plugin_driver.get_port(context, subport.port_id)
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# Retrieve the logical port ID based on the child port's neutron ID
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nsx_child_port_id = nsx_db.get_nsx_switch_and_port_id(
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session=context.session, neutron_id=subport.port_id)[1]
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# Retrieve child logical port from the backend
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try:
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nsx_child_port = self.plugin_driver._port_client.get(
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nsx_child_port_id)
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except nsxlib_exc.ResourceNotFound:
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with excutils.save_and_reraise_exception():
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LOG.error(_LE("Child port %s not found on the backend. "
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"Setting trunk status to ERROR."),
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nsx_child_port_id)
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# Build address bindings and switch profiles otherwise backend will
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# clear that information during port update
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address_bindings = self.plugin_driver._build_address_bindings(
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child_port)
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switching_profile_ids = self._build_switching_profile_ids(
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nsx_child_port.get('switching_profile_ids', []))
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attachment_type = None
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seg_id = None
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if parent_port_id:
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# Set properties for VLAN trunking
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if subport.segmentation_type == nsx_utils.NsxV3NetworkTypes.VLAN:
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attachment_type = nsx_consts.ATTACHMENT_CIF
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seg_id = subport.segmentation_id
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else:
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# Unset the parent port properties from child port
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attachment_type = nsx_consts.ATTACHMENT_VIF
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seg_id = None
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# Update logical port in the backend to set/unset parent port
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try:
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self.plugin_driver._port_client.update(
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lport_id=nsx_child_port.get('id'),
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vif_uuid=subport.port_id,
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name=nsx_child_port.get('display_name'),
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admin_state=nsx_child_port.get('admin_state'),
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address_bindings=address_bindings,
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switch_profile_ids=switching_profile_ids,
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attachment_type=attachment_type,
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parent_vif_id=parent_port_id,
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parent_tag=seg_id)
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except nsxlib_exc.ManagerError as e:
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with excutils.save_and_reraise_exception():
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LOG.error(_LE("Unable to update subport for attachment "
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"type. Setting trunk status to ERROR. "
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"Exception is %s"), e)
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def _set_subports(self, context, parent_port_id, subports):
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for subport in subports:
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# Update port with parent port for backend.
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self._update_port_at_backend(context, parent_port_id, subport)
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def _unset_subports(self, context, subports):
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for subport in subports:
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# Update port and remove parent port attachment in the backend
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self._update_port_at_backend(
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context=context, parent_port_id=None, subport=subport)
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def trunk_created(self, context, trunk):
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try:
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if trunk.sub_ports:
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self._set_subports(context, trunk.port_id, trunk.sub_ports)
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trunk.update(status=trunk_consts.ACTIVE_STATUS)
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except (nsxlib_exc.ManagerError, nsxlib_exc.ResourceNotFound):
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trunk.update(status=trunk_consts.ERROR_STATUS)
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def trunk_deleted(self, context, trunk):
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self._unset_subports(context, trunk.sub_ports)
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def subports_added(self, context, trunk, subports):
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try:
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self._set_subports(context, trunk.port_id, subports)
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trunk.update(status=trunk_consts.ACTIVE_STATUS)
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except (nsxlib_exc.ManagerError, nsxlib_exc.ResourceNotFound):
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trunk.update(status=trunk_consts.ERROR_STATUS)
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def subports_deleted(self, context, trunk, subports):
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try:
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self._unset_subports(context, subports)
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except (nsxlib_exc.ManagerError, nsxlib_exc.ResourceNotFound):
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trunk.update(status=trunk_consts.ERROR_STATUS)
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def trunk_event(self, resource, event, trunk_plugin, payload):
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if event == events.AFTER_CREATE:
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self.trunk_created(payload.context, payload.current_trunk)
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elif event == events.AFTER_DELETE:
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self.trunk_deleted(payload.context, payload.original_trunk)
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def subport_event(self, resource, event, trunk_plugin, payload):
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if event == events.AFTER_CREATE:
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self.subports_added(
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payload.context, payload.original_trunk, payload.subports)
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elif event == events.AFTER_DELETE:
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self.subports_deleted(
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payload.context, payload.original_trunk, payload.subports)
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class NsxV3TrunkDriver(base.DriverBase):
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"""Driver to implement neutron's trunk extensions."""
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@property
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def is_loaded(self):
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try:
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return nsx_consts.VMWARE_NSX_V3_PLUGIN_NAME == cfg.CONF.core_plugin
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except cfg.NoSuchOptError:
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return False
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@classmethod
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def create(cls, plugin_driver):
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cls.plugin_driver = plugin_driver
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return cls(nsx_consts.VMWARE_NSX_V3_PLUGIN_NAME, SUPPORTED_INTERFACES,
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SUPPORTED_SEGMENTATION_TYPES,
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agent_type=None, can_trunk_bound_port=False)
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def register(self, resource, event, trigger, **kwargs):
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super(NsxV3TrunkDriver, self).register(
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resource, event, trigger, **kwargs)
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self._handler = NsxV3TrunkHandler(self.plugin_driver)
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for event in (events.AFTER_CREATE, events.AFTER_DELETE):
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registry.subscribe(self._handler.trunk_event,
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trunk_consts.TRUNK,
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event)
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registry.subscribe(self._handler.subport_event,
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trunk_consts.SUBPORTS,
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event)
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LOG.debug("VMware NSXv3 trunk driver initialized.")
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