def start(self):
# Open the connection to OVS database
self.ovs_idl = ovsdb.MetadataAgentOvsIdl().start()
self._load_config()
# Launch the server that will act as a proxy between the VM's and Nova.
proxy = metadata_server.UnixDomainMetadataProxy(self.conf)
proxy.run()
# Open the connection to OVN SB database.
self.sb_idl = ovsdb.MetadataAgentOvnSbIdl(
chassis=self.chassis,
events=[
PortBindingChassisCreatedEvent(self),
PortBindingChassisDeletedEvent(self),
ChassisCreateEvent(self),
SbGlobalUpdateEvent(self)
]).start()
# Do the initial sync.
self.sync()
# Register the agent with its corresponding Chassis
self.register_metadata_agent()
proxy.wait()
def test_init_exists_unlink_no_file(self):
with mock.patch('os.path.isdir') as isdir:
with mock.patch('os.unlink') as unlink:
with mock.patch('os.path.exists') as exists:
isdir.return_value = True
exists.return_value = False
unlink.side_effect = OSError
agent.UnixDomainMetadataProxy(mock.Mock(), 'chassis1')
unlink.assert_called_once_with('/the/path')
def test_run(self, ensure_dir, server, handler):
p = agent.UnixDomainMetadataProxy(self.cfg.CONF, 'chassis1')
p.run()
ensure_dir.assert_called_once_with('/the', mode=0o755)
server.assert_has_calls([
mock.call('neutron-ovn-metadata-agent'),
mock.call().start(handler.return_value,
'/the/path', workers=0,
backlog=128, mode=0o644)]
)
def test_init_exists_unlink_fails_file_still_exists(self):
with mock.patch('os.path.isdir') as isdir:
with mock.patch('os.unlink') as unlink:
with mock.patch('os.path.exists') as exists:
isdir.return_value = True
exists.return_value = True
unlink.side_effect = OSError
with testtools.ExpectedException(OSError):
agent.UnixDomainMetadataProxy(mock.Mock(), 'chassis1')
unlink.assert_called_once_with('/the/path')
def start(self):
# Open the connection to OVS database
self.ovs_idl = ovsdb.MetadataAgentOvsIdl().start()
self._load_config()
# Launch the server that will act as a proxy between the VM's and Nova.
proxy = metadata_server.UnixDomainMetadataProxy(
self.conf, self.chassis)
proxy.run()
tables = ('Encap', 'Port_Binding', 'Datapath_Binding', 'SB_Global',
'Chassis')
events = (PortBindingChassisCreatedEvent(self),
PortBindingChassisDeletedEvent(self),
SbGlobalUpdateEvent(self))
# TODO(lucasagomes): Remove this in the future. Try to register
# the Chassis_Private table, if not present, fallback to the normal
# Chassis table.
# Open the connection to OVN SB database.
self.has_chassis_private = False
self._post_fork_event.clear()
try:
self.sb_idl = ovsdb.MetadataAgentOvnSbIdl(
chassis=self.chassis,
tables=tables + ('Chassis_Private', ),
events=events + (ChassisPrivateCreateEvent(self), )).start()
self.has_chassis_private = True
except AssertionError:
self.sb_idl = ovsdb.MetadataAgentOvnSbIdl(
chassis=self.chassis,
tables=tables,
events=events + (ChassisCreateEvent(self), )).start()
# Now IDL connections can be safely used.
self._post_fork_event.set()
# Do the initial sync.
self.sync()
# Register the agent with its corresponding Chassis
self.register_metadata_agent()
proxy.wait()
def test_init_exists(self):
with mock.patch('os.path.isdir') as isdir:
with mock.patch('os.unlink') as unlink:
isdir.return_value = True
agent.UnixDomainMetadataProxy(mock.Mock(), 'chassis1')
unlink.assert_called_once_with('/the/path')
def test_init_doesnot_exists(self, ensure_dir):
agent.UnixDomainMetadataProxy(mock.Mock(), 'chassis1')
ensure_dir.assert_called_once_with('/the', mode=0o755)
