def schedule_unscheduled_bgp_speakers(self, context, host):
if self.bgp_drscheduler:
return self.bgp_drscheduler.schedule_unscheduled_bgp_speakers(
context, host)
else:
LOG.warning(_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def _report_state(self):
LOG.debug("Report state task started")
try:
self.agent_state.get('configurations').update(
self.cache.get_state())
ctx = context.get_admin_context_without_session()
agent_status = self.state_rpc.report_state(ctx, self.agent_state,
True)
if agent_status == agent_consts.AGENT_REVIVED:
LOG.info(_LI("Agent has just been revived. "
"Scheduling full sync"))
self.schedule_full_resync(
reason=_("Agent has just been revived"))
except AttributeError:
# This means the server does not support report_state
LOG.warning(_LW("Neutron server does not support state report. "
"State report for this agent will be disabled."))
self.heartbeat.stop()
self.run()
return
except Exception:
LOG.exception(_LE("Failed reporting state!"))
return
if self.agent_state.pop('start_flag', None):
self.run()
def safe_configure_dragent_for_bgp_speaker(self, bgp_speaker):
try:
self.add_bgp_speaker_on_dragent(bgp_speaker)
except (bgp_ext.BgpSpeakerNotFound, RuntimeError):
LOG.warning(_LW('BGP speaker %s may have been deleted and its '
'resources may have already been disposed.'),
bgp_speaker['id'])
def schedule_unscheduled_bgp_speakers(self, context, host):
"""Schedule unscheduled BgpSpeaker to a BgpDrAgent.
"""
LOG.debug('Started auto-scheduling on host %s', host)
with context.session.begin(subtransactions=True):
bgp_dragent = obj_reg.load_class('Agent').get_object(
context,
agent_type=bgp_consts.AGENT_TYPE_BGP_ROUTING,
host=host,
admin_state_up=True)
if not bgp_dragent:
LOG.debug('No enabled BgpDrAgent on host %s', host)
return False
if utils.is_agent_down(bgp_dragent.heartbeat_timestamp):
LOG.warning(_LW('BgpDrAgent %s is down'), bgp_dragent.id)
return False
if self._is_bgp_speaker_hosted(context, bgp_dragent['id']):
# One BgpDrAgent can only host one BGP speaker
LOG.debug(
'BgpDrAgent already hosting a speaker on host %s. '
'Cannot schedule an another one', host)
return False
unscheduled_speakers = self._get_unscheduled_bgp_speakers(context)
if not unscheduled_speakers:
LOG.debug('Nothing to auto-schedule on host %s', host)
return False
self.bind(context, [bgp_dragent], unscheduled_speakers[0])
return True
def add_vrf_speaker_assoc(self, context, vrf_id, speaker_association):
speaker_id = speaker_association['speaker_id']
LOG.info(
_LI("Add speaker association %(speaker_id)s "
"for BGPVRF %(vrf_id)s"), {
'speaker_id': speaker_id,
'vrf_id': vrf_id
})
try:
with context.session.begin(subtransactions=True):
speaker_assoc_db = BgpSpeakerVrfBinding(
id=uuidutils.generate_uuid(),
vrf_id=vrf_id,
speaker_id=speaker_id)
context.session.add(speaker_assoc_db)
return self._make_speaker_assoc_dict(speaker_assoc_db)
except db_exc.DBDuplicateEntry:
LOG.warning(
_LW("Speaker %(speaker_id)s is already associated to "
"BGPVRF %(vrf_id)s"), {
'speaker_id': speaker_id,
'vrf_id': vrf_id
})
raise vrf_ext.BGPVRFSpeakerAssocAlreadyExists(
vrf_id=vrf_id, speaker_id=speaker_id)
def schedule_unscheduled_bgp_speakers(self, context, host):
if self.bgp_drscheduler:
return self.bgp_drscheduler.schedule_unscheduled_bgp_speakers(
context, host)
else:
LOG.warning(_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def schedule_unscheduled_bgp_speakers(self, context, host):
"""Schedule unscheduled BgpSpeaker to a BgpDrAgent.
"""
LOG.debug('Started auto-scheduling on host %s', host)
with context.session.begin(subtransactions=True):
bgp_dragent = obj_reg.load_class('Agent').get_object(
context,
agent_type=bgp_consts.AGENT_TYPE_BGP_ROUTING,
host=host,
admin_state_up=True)
if not bgp_dragent:
LOG.debug('No enabled BgpDrAgent on host %s', host)
return False
if utils.is_agent_down(
bgp_dragent.heartbeat_timestamp):
LOG.warning(_LW('BgpDrAgent %s is down'), bgp_dragent.id)
return False
if self._is_bgp_speaker_hosted(context, bgp_dragent['id']):
# One BgpDrAgent can only host one BGP speaker
LOG.debug('BgpDrAgent already hosting a speaker on host %s. '
'Cannot schedule an another one', host)
return False
unscheduled_speakers = self._get_unscheduled_bgp_speakers(context)
if not unscheduled_speakers:
LOG.debug('Nothing to auto-schedule on host %s', host)
return False
self.bind(context, [bgp_dragent], unscheduled_speakers[0])
return True
def safe_configure_dragent_for_bgp_speaker(self, bgp_speaker):
try:
self.add_bgp_speaker_on_dragent(bgp_speaker)
except (bgp_ext.BgpSpeakerNotFound, RuntimeError):
LOG.warning(_LW('BGP speaker %s may have been deleted and its '
'resources may have already been disposed.'),
bgp_speaker['id'])
def _report_state(self):
LOG.debug("Report state task started")
try:
self.agent_state.get('configurations').update(
self.cache.get_state())
ctx = context.get_admin_context_without_session()
agent_status = self.state_rpc.report_state(ctx, self.agent_state,
True)
if agent_status == agent_consts.AGENT_REVIVED:
LOG.info(_LI("Agent has just been revived. "
"Scheduling full sync"))
self.schedule_full_resync(
reason=_("Agent has just been revived"))
except AttributeError:
# This means the server does not support report_state
LOG.warning(_LW("Neutron server does not support state report. "
"State report for this agent will be disabled."))
self.heartbeat.stop()
self.run()
return
except Exception:
LOG.exception(_LE("Failed reporting state!"))
return
if self.agent_state.pop('start_flag', None):
self.run()
def schedule_unscheduled_bgp_speakers(self, context, host):
"""Schedule unscheduled BgpSpeaker to a BgpDrAgent.
"""
LOG.debug('Started auto-scheduling on host %s', host)
with context.session.begin(subtransactions=True):
query = context.session.query(agents_db.Agent)
query = query.filter_by(
agent_type=bgp_consts.AGENT_TYPE_BGP_ROUTING,
host=host,
admin_state_up=sql.true())
try:
bgp_dragent = query.one()
except (exc.NoResultFound):
LOG.debug('No enabled BgpDrAgent on host %s', host)
return False
if agents_db.AgentDbMixin.is_agent_down(
bgp_dragent.heartbeat_timestamp):
LOG.warning(_LW('BgpDrAgent %s is down'), bgp_dragent.id)
return False
if self._is_bgp_speaker_hosted(context, bgp_dragent['id']):
# One BgpDrAgent can only host one BGP speaker
LOG.debug('BgpDrAgent already hosting a speaker on host %s. '
'Cannot schedule an another one', host)
return False
unscheduled_speakers = self._get_unscheduled_bgp_speakers(context)
if not unscheduled_speakers:
LOG.debug('Nothing to auto-schedule on host %s', host)
return False
self.bind(context, [bgp_dragent], unscheduled_speakers[0])
return True
def schedule_all_unscheduled_bgp_speakers(self):
context = ncontext.get_admin_context()
if self.bgp_drscheduler:
return self.bgp_drscheduler.schedule_all_unscheduled_bgp_speakers(
context)
else:
LOG.warning(_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def add_periodic_dragent_status_check(self):
if self.bgp_drscheduler:
self.add_agent_status_check_worker(
self.remove_bgp_speaker_from_down_dragents)
self.add_agent_status_check_worker(
self.schedule_all_unscheduled_bgp_speakers)
else:
LOG.warning(_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def schedule_all_unscheduled_bgp_speakers(self):
context = ncontext.get_admin_context()
if self.bgp_drscheduler:
return self.bgp_drscheduler.schedule_all_unscheduled_bgp_speakers(
context)
else:
LOG.warning(
_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def add_periodic_dragent_status_check(self):
if self.bgp_drscheduler:
self.add_agent_status_check_worker(
self.remove_bgp_speaker_from_down_dragents)
self.add_agent_status_check_worker(
self.schedule_all_unscheduled_bgp_speakers)
else:
LOG.warning(
_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def schedule_bgp_speaker(self, context, created_bgp_speaker):
if self.bgp_drscheduler:
agents = self.bgp_drscheduler.schedule(context,
created_bgp_speaker)
for agent in agents:
self._bgp_rpc.bgp_speaker_created(context,
created_bgp_speaker['id'],
agent.host)
else:
LOG.warning(_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def schedule_bgp_speaker(self, context, created_bgp_speaker):
if self.bgp_drscheduler:
agents = self.bgp_drscheduler.schedule(context,
created_bgp_speaker)
for agent in agents:
self._bgp_rpc.bgp_speaker_created(context,
created_bgp_speaker['id'],
agent.host)
else:
LOG.warning(_LW("Cannot schedule BgpSpeaker to DrAgent. "
"Reason: No scheduler registered."))
def safe_get_bgp_peer_info(self, bgp_speaker_id, bgp_peer_id):
try:
bgp_peer = self.plugin_rpc.get_bgp_peer_info(self.context,
bgp_peer_id)
if not bgp_peer:
LOG.warning(_LW('BGP Peer %s has been deleted.'), bgp_peer)
return bgp_peer
except Exception as e:
self.schedule_resync(speaker_id=bgp_speaker_id,
reason=e)
LOG.error(_LE('BGP peer %(bgp_peer)s info call '
'failed with reason=%(e)s.'),
{'bgp_peer': bgp_peer_id, 'e': e})
def safe_get_bgp_peer_info(self, bgp_speaker_id, bgp_peer_id):
try:
bgp_peer = self.plugin_rpc.get_bgp_peer_info(self.context,
bgp_peer_id)
if not bgp_peer:
LOG.warning(_LW('BGP Peer %s has been deleted.'), bgp_peer)
return bgp_peer
except Exception as e:
self.schedule_resync(speaker_id=bgp_speaker_id,
reason=e)
LOG.error(_LE('BGP peer %(bgp_peer)s info call '
'failed with reason=%(e)s.'),
{'bgp_peer': bgp_peer_id, 'e': e})
def add_vrf_router_assoc(self, context, vrf_id, router_association):
LOG.debug("vrf id %s, association %s", vrf_id, router_association)
router_id = router_association['router_id']
try:
with context.session.begin(subtransactions=True):
router_assoc_db = BGPVRFRouterAssociation(
id=uuidutils.generate_uuid(),
vrf_id=vrf_id,
router_id=router_id)
context.session.add(router_assoc_db)
return self._make_router_assoc_dict(router_assoc_db)
except db_exc.DBDuplicateEntry:
LOG.warning(
_LW("router %(router_id)s is already associated to "
"BGPVRF %(vrf_id)s"), {
'router_id': router_id,
'vrf_id': vrf_id
})
raise vrf_ext.BGPVRFRouterAssocAlreadyExists(vrf_id=vrf_id,
router_id=router_id)
def schedule_unscheduled_bgp_speakers(self, context, host):
"""Schedule unscheduled BgpSpeaker to a BgpDrAgent.
"""
LOG.debug('Started auto-scheduling on host %s', host)
with context.session.begin(subtransactions=True):
query = context.session.query(agent_model.Agent)
query = query.filter_by(
agent_type=bgp_consts.AGENT_TYPE_BGP_ROUTING,
host=host,
admin_state_up=sql.true())
try:
bgp_dragent = query.one()
except (exc.NoResultFound):
LOG.debug('No enabled BgpDrAgent on host %s', host)
return False
if agents_db.AgentDbMixin.is_agent_down(
bgp_dragent.heartbeat_timestamp):
LOG.warning(_LW('BgpDrAgent %s is down'), bgp_dragent.id)
return False
if self._is_bgp_speaker_hosted(context, bgp_dragent['id']):
# One BgpDrAgent can only host one BGP speaker
LOG.debug(
'BgpDrAgent already hosting a speaker on host %s. '
'Cannot schedule an another one', host)
return False
unscheduled_speakers = self._get_unscheduled_bgp_speakers(context)
if not unscheduled_speakers:
LOG.debug('Nothing to auto-schedule on host %s', host)
return False
self.bind(context, [bgp_dragent], unscheduled_speakers[0])
return True
