def __exit__(self, exc_type, value, traceback):
# TODO(carl) Preserves old behavior of L3 agent where cleaning
# namespaces was only done once after restart. Still a good idea?
if exc_type:
# An exception occurred in the caller's with statement
return False
if not self._clean_stale:
# No need to cleanup
return True
self._clean_stale = False
for ns in self._all_namespaces:
_ns_prefix, ns_id = self.get_prefix_and_id(ns)
if ns_id in self._ids_to_keep:
continue
if _ns_prefix == namespaces.NS_PREFIX:
ns = namespaces.RouterNamespace(ns_id,
self.agent_conf,
self.driver,
use_ipv6=False)
else:
ns = dvr_snat_ns.SnatNamespace(ns_id,
self.agent_conf,
self.driver,
use_ipv6=False)
try:
if self.metadata_driver:
# cleanup stale metadata proxy processes first
self.metadata_driver.destroy_monitored_metadata_proxy(
self.process_monitor, ns_id, self.agent_conf)
ns.delete()
except RuntimeError:
LOG.exception(_LE('Failed to destroy stale namespace %s'), ns)
return True
def create_snat_namespace(self):
# TODO(mlavalle): in the near future, this method should contain the
# code in the L3 agent that creates a gateway for a dvr. The first step
# is to move the creation of the snat namespace here
self.snat_namespace = dvr_snat_ns.SnatNamespace(
self.router['id'], self.agent_conf, self.driver, self.use_ipv6)
self.snat_namespace.create()
return self.snat_namespace
def __init__(self, agent, host, *args, **kwargs):
super(DvrEdgeRouter, self).__init__(agent, host, *args, **kwargs)
# NOTE: Initialize the snat_namespace object here.
# The namespace can be created later, just to align with the
# parent init.
self.snat_namespace = dvr_snat_ns.SnatNamespace(
self.router_id, self.agent_conf,
self.driver, self.use_ipv6)
self.snat_iptables_manager = None
def setUp(self):
super(TestDvrSnatNs, self).setUp()
self.conf = mock.Mock()
self.conf.state_path = cfg.CONF.state_path
self.driver = mock.Mock()
self.driver.DEV_NAME_LEN = 14
self.router_id = _uuid()
self.snat_ns = dvr_snat_ns.SnatNamespace(self.router_id,
self.conf,
self.driver,
use_ipv6=False)
def _make_dvr_edge_router_info_for_test(self):
router = dvr_edge_router.DvrEdgeRouter(mock.sentinel.agent,
mock.sentinel.myhost,
FAKE_ROUTER_ID,
**self.ri_kwargs)
router.router['distributed'] = True
router.snat_namespace = dvr_snat_ns.SnatNamespace(
router.router['id'], mock.sentinel.agent, self.driver, mock.ANY)
router.snat_namespace.create()
router.snat_iptables_manager = iptables_manager.IptablesManager(
namespace='snat-' + FAKE_ROUTER_ID, use_ipv6=mock.ANY)
router.snat_iptables_manager.ipv4['nat'] = self.iptables
router.snat_iptables_manager.apply = self.apply_mock
self.driver.routers[FAKE_ROUTER_ID] = router
def __init__(self, host, *args, **kwargs):
super(DvrEdgeRouter, self).__init__(host, *args, **kwargs)
self.snat_namespace = dvr_snat_ns.SnatNamespace(
self.router_id, self.agent_conf, self.driver, self.use_ipv6)
self.snat_iptables_manager = None
