def __init__(self):
self.db = firewall_db.Firewall_db_mixin()
self.driver = importutils.import_object(nwservice_driver)
self.agent_rpc = FirewallAgentApi(
'l3_agent',
cfg.CONF.host
)
def kill_dhcp(conf, namespace):
"""Disable DHCP for a network if DHCP is still active."""
root_helper = agent_config.get_root_helper(conf)
network_id = namespace.replace(dhcp.NS_PREFIX, '')
dhcp_driver = importutils.import_object(
conf.dhcp_driver,
conf=conf,
network=dhcp.NetModel(conf.use_namespaces, {'id': network_id}),
root_helper=root_helper,
plugin=FakeDhcpPlugin())
if dhcp_driver.active:
dhcp_driver.disable()
def init_firewall(self, defer_refresh_firewall=False):
firewall_driver = cfg.CONF.SECURITYGROUP.firewall_driver
LOG.debug(_("Init firewall settings (driver=%s)"), firewall_driver)
if not _is_valid_driver_combination():
LOG.warn("Driver configuration doesn't match "
"with enable_security_group")
if not firewall_driver:
firewall_driver = 'neutron.agent.firewall.NoopFirewallDriver'
self.firewall = importutils.import_object(firewall_driver)
# The following flag will be set to true if port filter must not be
# applied as soon as a rule or membership notification is received
self.defer_refresh_firewall = defer_refresh_firewall
# Stores devices for which firewall should be refreshed when
# deferred refresh is enabled.
self.devices_to_refilter = set()
# Flag raised when a global refresh is needed
self.global_refresh_firewall = False
def load_drivers(service_type, plugin):
"""Loads drivers for specific service.
Passes plugin instance to driver's constructor
"""
service_type_manager = sdb.ServiceTypeManager.get_instance()
providers = (service_type_manager.
get_service_providers(
None,
filters={'service_type': [service_type]})
)
if not providers:
msg = (_("No providers specified for '%s' service, exiting") %
service_type)
LOG.error(msg)
raise SystemExit(msg)
drivers = {}
for provider in providers:
try:
drivers[provider['name']] = importutils.import_object(
provider['driver'], plugin
# provider['driver']
)
LOG.debug(_("Loaded '%(provider)s' provider for service "
"%(service_type)s"),
{'provider': provider['driver'],
'service_type': service_type})
except ImportError:
with excutils.save_and_reraise_exception():
LOG.exception(_("Error loading provider '%(provider)s' for "
"service %(service_type)s"),
{'provider': provider['driver'],
'service_type': service_type})
default_provider = None
try:
provider = service_type_manager.get_default_service_provider(
None, service_type)
default_provider = provider['name']
except pconf.DefaultServiceProviderNotFound:
LOG.info(_("Default provider is not specified for service type %s"),
service_type)
return drivers, default_provider
def _load_drivers(self):
self.device_drivers = {}
for driver in self.conf.device_driver:
try:
driver_inst = importutils.import_object(
driver,
self.conf,
self.plugin_rpc
)
except ImportError:
msg = _('Error importing loadbalancer device driver: %s')
raise SystemExit(msg % driver)
driver_name = driver_inst.get_name()
if driver_name not in self.device_drivers:
self.device_drivers[driver_name] = driver_inst
else:
msg = _('Multiple device drivers with the same name found: %s')
raise SystemExit(msg % driver_name)
def __init__(self, host, conf=None):
if conf:
self.conf = conf
else:
self.conf = cfg.CONF
self.root_helper = config.get_root_helper(self.conf)
self.router_info = {}
self._check_config_params()
try:
self.driver = importutils.import_object(
self.conf.interface_driver,
self.conf
)
except Exception:
msg = _("Error importing interface driver "
"'%s'") % self.conf.interface_driver
LOG.error(msg)
raise SystemExit(msg)
self.context = context.get_admin_context_without_session()
self.plugin_rpc = L3PluginApi(topics.L3PLUGIN, host)
self.fullsync = True
self.updated_routers = set()
self.removed_routers = set()
self.sync_progress = False
self._delete_stale_namespaces = (self.conf.use_namespaces and
self.conf.router_delete_namespaces)
self.rpc_loop = loopingcall.FixedIntervalLoopingCall(
self._rpc_loop)
self.rpc_loop.start(interval=RPC_LOOP_INTERVAL)
super(L3NATAgent, self).__init__(conf=self.conf)
self.target_ex_net_id = None
def __init__(self):
"""Do the initialization for the firewall service plugin here."""
self.db = firewall_db.Firewall_db_mixin()
self.driver = importutils.import_object(firewall_driver)
qdbapi.register_models()
super(FirewallPlugin, self).__init__()
def __init__(self, topic):
super(LoadBalancerAgentApi, self).__init__(
topic, default_version=self.BASE_RPC_API_VERSION)
self.db = loadbalancer_db.LoadBalancerPluginDb()
self.nws_driver = importutils.import_object(nwservice_driver)
self.listen_conn = rpc.create_connection(new=True)
