def test_cleanup_stale_devices(self):
plugin = mock.MagicMock()
dev_mgr = dhcp.DeviceManager(self.conf, plugin)
network = {
'id':
'foo_id',
'tenant_id':
'foo_tenant',
'namespace':
'qdhcp-foo_id',
'ports': [],
'subnets': [
tests_base.AttributeDict({
'id': 'subnet_foo_id',
'enable_dhcp': True,
'ipv6_address_mode': None,
'ipv6_ra_mode': None,
'cidr': '10.0.0.0/24',
'ip_version': 4,
'gateway_ip': '10.0.0.1'
})
]
}
dhcp_port = {
'id':
'foo_port_id',
'mac_address':
'10:22:33:44:55:67',
'fixed_ips': [
tests_base.AttributeDict({
'subnet_id': 'subnet_foo_id',
'ip_address': '10.0.0.1'
})
]
}
plugin.create_dhcp_port.return_value = tests_base.AttributeDict(
dhcp_port)
dev_mgr.driver.plug("foo_id",
"foo_id2",
"tapfoo_id2",
"10:22:33:44:55:68",
namespace="qdhcp-foo_id")
dev_mgr.driver.plug("foo_id",
"foo_id3",
"tapfoo_id3",
"10:22:33:44:55:69",
namespace="qdhcp-foo_id")
ipw = ip_lib.IPWrapper(namespace="qdhcp-foo_id")
devices = ipw.get_devices(exclude_loopback=True)
self.addCleanup(ipw.netns.delete, 'qdhcp-foo_id')
self.assertEqual(2, len(devices))
# setting up dhcp for the network
dev_mgr.setup(tests_base.AttributeDict(network))
common_utils.wait_until_true(
lambda: 1 == len(ipw.get_devices(exclude_loopback=True)),
timeout=5,
sleep=0.1,
exception=RuntimeError("only one non-loopback device must remain"))
devices = ipw.get_devices(exclude_loopback=True)
self.assertEqual("tapfoo_port_id", devices[0].name)
def get_interface_name(self, network, port):
device_manager = dhcp.DeviceManager(conf=self.conf, plugin=mock.Mock())
return device_manager.get_interface_name(network, port)
def t_create_testns(testns_name, network):
try:
neutron_credentials = get_neutron_credentials()
neutron = neutron_client.Client(**neutron_credentials)
dhcp_agent.register_options()
dhcp_agent.cfg.CONF(project='neutron')
conf = dhcp_agent.cfg.CONF
root_helper = config.get_root_helper(conf)
ctx = context.get_admin_context_without_session()
plugin = dhcp_agent.DhcpPluginApi(topics.PLUGIN, ctx,
conf.use_namespaces)
conf.interface_driver = "neutron.agent.linux.interface.OVSInterfaceDriver"
a = os.system("ip netns add " + testns_name)
if a != 0:
return
time.sleep(2)
test_device = dhcp.DeviceManager(conf, root_helper, plugin)
test_device.test = True
pnetwork = plugin.get_network_info(network['id'])
test_tap_interface = test_device.setup(
pnetwork,
reuse_existing=False,
test_tap=True,
test_tap_mac="ee:ff:ff:ff:ff:ef",
test_ns=testns_name)
subnet_id = network['subnets'][0]
while True:
try:
subnet = neutron.list_subnets(id=subnet_id)['subnets'][0]
break
except:
continue
gateway_ip = subnet['gateway_ip']
os.system("sudo ip netns exec " + testns_name + " ifconfig " +
test_tap_interface + " " + gateway_ip +
" netmask 255.255.255.0 up")
os.system("sudo ip netns exec " + testns_name + " ifconfig " +
test_tap_interface + " up")
print "\nAdded test tap interface {0} ({1}) in namespace {2}".format(
test_tap_interface, gateway_ip, testns_name)
time.sleep(2)
try:
f = os.popen("sudo ip netns exec qdhcp-" + str(network['id']) +
" ip a | grep inet | grep -v 'inet6\|127\|169'")
output = f.read().splitlines()[0]
ping_ip = output.split()[1].split('/')[0]
except Exception as e:
print "\n ERROR : Error when running command in namespace {0}".format(
"qdhcp-" + str(network['id']))
print e
return
f = os.popen("sudo ip netns exec " + testns_name + " ping -c 5 " +
ping_ip)
output = f.read()
ping_output = output.splitlines()
ping_output = ping_output[len(ping_output) - 2]
# if " 0% packet loss" not in ping_output:
# print "\n ERROR: Cannot ping {0} from test namespace {1}\n".format(ping_ip, testns_name)
f = os.popen("sudo ip netns exec " + testns_name + " ping -c 5 " +
ping_ip)
output = f.read()
ping_output = output.splitlines()
ping_output = ping_output[len(ping_output) - 2]
# if " 0% packet loss" not in ping_output:
# print "\n ERROR: Cannot ping {0} from test namespace {1}\n".format(ping_ip, testns_name)
f = os.popen("sudo ip netns exec " + testns_name + " ping -c 5 " +
ping_ip)
output = f.read()
ping_output = output.splitlines()
ping_output = ping_output[len(ping_output) - 2]
# if " 0% packet loss" not in ping_output:
# print "\n ERROR: Cannot ping {0} from test namespace {1}\n".format(ping_ip, testns_name)
except Exception as e:
print "\n ERROR : An exception occurred when creating test namespace {0} for {1}".format(
testns_name, network['name'])
print e
os.system("ip netns delete " + testns_name)
time.sleep(0.5)
