NeutronRouterService之Router_availability_zoneExtension.md

Neutron Router Service 之 Router_availability_zone extension

extension

neutron/extensions/router_availability_zone.py

为 router 增加 availability_zones 和 availability_zone_hints 属性

@six.add_metaclass(abc.ABCMeta)
class RouterAvailabilityZonePluginBase(object):

    @abc.abstractmethod
    def get_router_availability_zones(self, router):
        """Return availability zones which a router belongs to."""

WSGI 逻辑实现

neutron/db/l3_agentschedulers_db.py

class AZL3AgentSchedulerDbMixin(L3AgentSchedulerDbMixin, router_az.RouterAvailabilityZonePluginBase)

class AZL3AgentSchedulerDbMixin(L3AgentSchedulerDbMixin,
                                router_az.RouterAvailabilityZonePluginBase):
    """Mixin class to add availability_zone supported l3 agent scheduler."""

    def get_router_availability_zones(self, router):
        return list({agent.availability_zone for agent in router.l3_agents})

返回与 router 绑定的 l3 agent 的 az 属性