OpenStack Networking (Neutron)
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# Copyright (c) 2019 OpenStack Foundation.
# 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 keystoneauth1 import loading as ks_loading
from neutron_lib.api.definitions import port as port_def
from neutron_lib.api.definitions import portbindings as portbindings_def
from neutron_lib.callbacks import events
from neutron_lib.callbacks import registry
from neutron_lib.callbacks import resources
from neutron_lib import constants as n_const
from openstack import connection
from openstack import exceptions as os_exc
from oslo_config import cfg
from oslo_log import log as logging
from neutron.notifiers import batch_notifier
LOG = logging.getLogger(__name__)
BAREMETAL_EVENT_TYPE = 'network'
IRONIC_API_VERSION = 'latest'
IRONIC_SESSION = None
IRONIC_CONF_SECTION = 'ironic'
IRONIC_CLIENT_VERSION = 1
@registry.has_registry_receivers
class Notifier(object):
_instance = None
@classmethod
def get_instance(cls):
if cls._instance is None:
cls._instance = cls()
return cls._instance
def __init__(self):
self.batch_notifier = batch_notifier.BatchNotifier(
cfg.CONF.send_events_interval, self.send_events)
self.irclient = self._get_ironic_client()
def _get_session(self, group):
auth = ks_loading.load_auth_from_conf_options(cfg.CONF, group)
session = ks_loading.load_session_from_conf_options(
cfg.CONF, group, auth=auth)
return session
def _get_ironic_client(self):
"""Get Ironic client instance."""
global IRONIC_SESSION
if not IRONIC_SESSION:
IRONIC_SESSION = self._get_session(IRONIC_CONF_SECTION)
return connection.Connection(
session=IRONIC_SESSION, oslo_conf=cfg.CONF,
connect_retries=cfg.CONF.http_retries).baremetal
def send_events(self, batched_events):
try:
response = self.irclient.post('/events',
json={'events': batched_events},
microversion='1.54')
os_exc.raise_from_response(response)
except Exception as e:
LOG.exception('Error encountered posting the event to '
'ironic. {error}'.format(error=e))
@registry.receives(resources.PORT, [events.AFTER_UPDATE])
def process_port_update_event(self, resource, event, trigger,
original_port=None, port=None,
**kwargs):
# We only want to notify about baremetal ports.
if not (port[portbindings_def.VNIC_TYPE] ==
portbindings_def.VNIC_BAREMETAL):
# TODO(TheJulia): Add the smartnic flag at some point...
return
original_port_status = original_port['status']
current_port_status = port['status']
port_event = None
if (original_port_status == n_const.PORT_STATUS_ACTIVE and
current_port_status in [n_const.PORT_STATUS_DOWN,
n_const.PORT_STATUS_ERROR]):
port_event = 'unbind_port'
elif (original_port_status == n_const.PORT_STATUS_DOWN and
current_port_status in [n_const.PORT_STATUS_ACTIVE,
n_const.PORT_STATUS_ERROR]):
port_event = 'bind_port'
LOG.debug('Queuing event for {event_type} for port {port} '
'for status {status}.'.format(event_type=port_event,
port=port['id'],
status=current_port_status))
if port_event:
notify_event = {
'event': '.'.join([BAREMETAL_EVENT_TYPE, port_event]),
'port_id': port['id'],
'mac_address': port[port_def.PORT_MAC_ADDRESS],
'status': current_port_status,
'device_id': port['device_id'],
'binding:host_id': port[portbindings_def.HOST_ID],
'binding:vnic_type': port[portbindings_def.VNIC_TYPE]
}
# Filter keys with empty string as value. In case a type UUID field
# or similar is not set the API won't accept empty string.
self.batch_notifier.queue_event(
{k: v for k, v in notify_event.items() if v != ''})
@registry.receives(resources.PORT, [events.AFTER_DELETE])
def process_port_delete_event(self, resource, event, trigger,
original_port=None, port=None,
**kwargs):
# We only want to notify about baremetal ports.
if not (port[portbindings_def.VNIC_TYPE] ==
portbindings_def.VNIC_BAREMETAL):
# TODO(TheJulia): Add the smartnic flag at some point...
return
port_event = 'delete_port'
LOG.debug('Queuing event for {event_type} for port {port} '
'for status {status}.'.format(event_type=port_event,
port=port['id'],
status='DELETED'))
notify_event = {
'event': '.'.join([BAREMETAL_EVENT_TYPE, port_event]),
'port_id': port['id'],
'mac_address': port[port_def.PORT_MAC_ADDRESS],
'status': 'DELETED',
'device_id': port['device_id'],
'binding:host_id': port[portbindings_def.HOST_ID],
'binding:vnic_type': port[portbindings_def.VNIC_TYPE]
}
# Filter keys with empty string as value. In case a type UUID field
# or similar is not set the API won't accept empty string.
self.batch_notifier.queue_event(
{k: v for k, v in notify_event.items() if v != ''})