102 lines
4.1 KiB
Python
102 lines
4.1 KiB
Python
# Copyright 2015 Cisco Systems, Inc.
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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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"""Extensions Driver for Cisco Nexus1000V."""
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from oslo_config import cfg
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from oslo_log import log
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from oslo_utils import uuidutils
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from networking_cisco.plugins.ml2.drivers.cisco.n1kv import (
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constants)
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from networking_cisco.plugins.ml2.drivers.cisco.n1kv import (
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exceptions as n1kv_exc)
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from networking_cisco.plugins.ml2.drivers.cisco.n1kv import (
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n1kv_db)
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from neutron.api import extensions as api_extensions
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from neutron.api.v2 import attributes
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from neutron.i18n import _LE
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from neutron.plugins.ml2.common import exceptions as ml2_exc
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from neutron.plugins.ml2 import driver_api as api
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from neutron.plugins.ml2.drivers.cisco.n1kv import extensions
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LOG = log.getLogger(__name__)
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class CiscoN1kvExtensionDriver(api.ExtensionDriver):
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"""Cisco N1KV ML2 Extension Driver."""
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# List of supported extensions for cisco Nexus1000V.
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_supported_extension_alias = "n1kv"
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def initialize(self):
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api_extensions.append_api_extensions_path(extensions.__path__)
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@property
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def extension_alias(self):
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"""
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Supported extension alias.
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:returns: alias identifying the core API extension supported
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by this driver
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"""
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return self._supported_extension_alias
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def process_create_port(self, context, data, result):
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"""Implementation of abstract method from ExtensionDriver class."""
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port_id = result.get('id')
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policy_profile_attr = data.get(constants.N1KV_PROFILE)
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if not attributes.is_attr_set(policy_profile_attr):
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policy_profile_attr = (cfg.CONF.ml2_cisco_n1kv.
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default_policy_profile)
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with context.session.begin(subtransactions=True):
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try:
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n1kv_db.get_policy_binding(port_id, context.session)
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except n1kv_exc.PortBindingNotFound:
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if not uuidutils.is_uuid_like(policy_profile_attr):
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policy_profile = n1kv_db.get_policy_profile_by_name(
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policy_profile_attr,
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context.session)
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if policy_profile:
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policy_profile_attr = policy_profile.id
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else:
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LOG.error(_LE("Policy Profile %(profile)s does "
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"not exist."),
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{"profile": policy_profile_attr})
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raise ml2_exc.MechanismDriverError()
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elif not (n1kv_db.get_policy_profile_by_uuid(
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context.session,
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policy_profile_attr)):
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LOG.error(_LE("Policy Profile %(profile)s does not "
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"exist."),
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{"profile": policy_profile_attr})
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raise ml2_exc.MechanismDriverError()
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n1kv_db.add_policy_binding(port_id,
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policy_profile_attr,
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context.session)
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result[constants.N1KV_PROFILE] = policy_profile_attr
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def extend_port_dict(self, session, model, result):
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"""Implementation of abstract method from ExtensionDriver class."""
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port_id = result.get('id')
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with session.begin(subtransactions=True):
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try:
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res = n1kv_db.get_policy_binding(port_id, session)
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result[constants.N1KV_PROFILE] = res.profile_id
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except n1kv_exc.PortBindingNotFound:
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# Do nothing if the port binding is not found.
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pass
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