def sync_qos(self, context, host):
try:
l3_agent = self._core_plugin._get_agent_by_type_and_host(
context, n_constants.AGENT_TYPE_L3, host)
if not l3_agent.is_active:
# L3 agent is dead, return nothing for routers
raise ext_agent.AgentNotFoundByTypeHost(
agent_type=n_constants.AGENT_TYPE_L3, host=host)
binding_query = context.session.query(
l3_agent_db.RouterL3AgentBinding.router_id).filter(
l3_agent_db.RouterL3AgentBinding.l3_agent_id ==
l3_agent.id)
routers_bound_to_host = set(binding.router_id
for binding in binding_query)
router_query = context.session.query(l3_db.Router).filter(
l3_db.Router.id.in_(routers_bound_to_host)).filter(
l3_db.Router.admin_state_up == true())
routers_on_host = set(router.id for router in router_query)
except ext_agent.AgentNotFoundByTypeHost:
routers_on_host = set()
port_query = context.session.query(ml2_models.PortBinding)
port_query = port_query.filter(ml2_models.PortBinding.host == host)
ports_on_host = set(binding.port_id for binding in port_query)
query = context.session.query(Qos)
query = query.filter(
or_(
and_(Qos.router_id.isnot(None),
Qos.router_id.in_(routers_on_host)),
and_(Qos.port_id.isnot(None), Qos.port_id.in_(ports_on_host))))
qoss_on_host = {}
for qos in query.all():
namespace = None
if qos.router_id:
namespace = 'qrouter-' + qos.router_id
elif qos.port_id:
if self._is_owner_floatingip(qos.port.device_owner):
try:
fip = self._l3_plugin.get_floatingip(
context, qos.port.device_id)
except ext_l3.FloatingIPNotFound:
continue
if fip['router_id'] is None:
continue
namespace = 'qrouter-' + fip['router_id']
else:
namespace = '_root'
if namespace:
qos_for_agent = self._get_qos_for_agent(context, qos)
if qos_for_agent:
if namespace not in qoss_on_host:
qoss_on_host[namespace] = []
qoss_on_host[namespace].append(qos_for_agent)
return qoss_on_host
def _get_agent_by_type_and_host(self, context, agent_type, host):
agent_objs = agent_obj.Agent.get_objects(context,
agent_type=agent_type,
host=host)
if not agent_objs:
raise ext_agent.AgentNotFoundByTypeHost(agent_type=agent_type,
host=host)
if len(agent_objs) > 1:
raise ext_agent.MultipleAgentFoundByTypeHost(agent_type=agent_type,
host=host)
return agent_objs[0]
def _get_agent_by_type_and_host(self, context, agent_type, host):
query = model_query.query_with_hooks(context, agent_model.Agent)
try:
agent_db = query.filter(agent_model.Agent.agent_type == agent_type,
agent_model.Agent.host == host).one()
return agent_db
except exc.NoResultFound:
raise ext_agent.AgentNotFoundByTypeHost(agent_type=agent_type,
host=host)
except exc.MultipleResultsFound:
raise ext_agent.MultipleAgentFoundByTypeHost(agent_type=agent_type,
host=host)
def _get_agent_by_type_and_host(self, context, agent_type, host):
query = context.session.query(H3CAgent)
try:
agent_db = query.filter_by(agent_type=agent_type,
host=host).one()
return agent_db
except exc.NoResultFound:
raise ext_a.AgentNotFoundByTypeHost(agent_type=agent_type,
host=host)
except exc.MultipleResultsFound:
raise ext_a.MultipleAgentFoundByTypeHost(agent_type=agent_type,
host=host)
