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authorDeepak S <deepak.s@linux.intel.com>2016-12-30 09:23:49 -0800
committerDeepak S <deepak.s@linux.intel.com>2017-01-19 08:28:49 +0530
commit8b15550fd60efc464aa19589cc0ea638ded20f3d (patch)
treeb2254ab2de360c9c4bfeca09a01bea27f64a7771
parentc1d6fd53c49a2cc5c0a7eab82e15dcf1a08f4e32 (diff)
Adding ping based sample VNF appliance
This patch defines - Generic VNF APIs to test Network service --> instantiate --> collect_kpi --> run_traffic --> listen_traffic --> terminate - vnf Descriptor to map the physical NFVi topology of the Test unit. JIRA: YARDSTICK-491 Change-Id: I6b7e09972fc536977b65d8a19d635a220815e5f3 Signed-off-by: Deepak S <deepak.s@linux.intel.com>
-rw-r--r--tests/unit/network_services/traffic_profile/test_fixed.py114
-rw-r--r--tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py247
-rw-r--r--yardstick/network_services/traffic_profile/fixed.py60
-rw-r--r--yardstick/network_services/vnf_generic/vnf/tg_ping.py167
4 files changed, 588 insertions, 0 deletions
diff --git a/tests/unit/network_services/traffic_profile/test_fixed.py b/tests/unit/network_services/traffic_profile/test_fixed.py
new file mode 100644
index 000000000..f4500dd38
--- /dev/null
+++ b/tests/unit/network_services/traffic_profile/test_fixed.py
@@ -0,0 +1,114 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import absolute_import
+import unittest
+import mock
+
+from yardstick.network_services.traffic_profile.base import TrafficProfile
+from yardstick.network_services.traffic_profile.fixed import FixedProfile
+
+
+class TestFixedProfile(unittest.TestCase):
+ TRAFFIC_PROFILE = {
+ "schema": "isb:traffic_profile:0.1",
+ "name": "fixed",
+ "description": "Fixed traffic profile to run UDP traffic",
+ "traffic_profile": {
+ "traffic_type": "FixedTraffic",
+ "frame_rate": 100, # pps
+ "flow_number": 10,
+ "frame_size": 64}}
+
+ VNFD = {'vnfd:vnfd-catalog':
+ {'vnfd':
+ [{'short-name': 'VpeVnf',
+ 'vdu':
+ [{'routing_table':
+ [{'network': '152.16.100.20',
+ 'netmask': '255.255.255.0',
+ 'gateway': '152.16.100.20',
+ 'if': 'xe0'},
+ {'network': '152.16.40.20',
+ 'netmask': '255.255.255.0',
+ 'gateway': '152.16.40.20',
+ 'if': 'xe1'}],
+ 'description': 'VPE approximation using DPDK',
+ 'name': 'vpevnf-baremetal',
+ 'nd_route_tbl':
+ [{'network': '0064:ff9b:0:0:0:0:9810:6414',
+ 'netmask': '112',
+ 'gateway': '0064:ff9b:0:0:0:0:9810:6414',
+ 'if': 'xe0'},
+ {'network': '0064:ff9b:0:0:0:0:9810:2814',
+ 'netmask': '112',
+ 'gateway': '0064:ff9b:0:0:0:0:9810:2814',
+ 'if': 'xe1'}],
+ 'id': 'vpevnf-baremetal',
+ 'external-interface':
+ [{'virtual-interface':
+ {'dst_mac': '00:00:00:00:00:04',
+ 'vpci': '0000:05:00.0',
+ 'local_ip': '152.16.100.19',
+ 'type': 'PCI-PASSTHROUGH',
+ 'netmask': '255.255.255.0',
+ 'dpdk_port_num': '0',
+ 'bandwidth': '10 Gbps',
+ 'dst_ip': '152.16.100.20',
+ 'local_mac': '00:00:00:00:00:01'},
+ 'vnfd-connection-point-ref': 'xe0',
+ 'name': 'xe0'},
+ {'virtual-interface':
+ {'dst_mac': '00:00:00:00:00:03',
+ 'vpci': '0000:05:00.1',
+ 'local_ip': '152.16.40.19',
+ 'type': 'PCI-PASSTHROUGH',
+ 'netmask': '255.255.255.0',
+ 'dpdk_port_num': '1',
+ 'bandwidth': '10 Gbps',
+ 'dst_ip': '152.16.40.20',
+ 'local_mac': '00:00:00:00:00:02'},
+ 'vnfd-connection-point-ref': 'xe1',
+ 'name': 'xe1'}]}],
+ 'description': 'Vpe approximation using DPDK',
+ 'mgmt-interface':
+ {'vdu-id': 'vpevnf-baremetal',
+ 'host': '1.1.1.1',
+ 'password': 'r00t',
+ 'user': 'root',
+ 'ip': '1.1.1.1'},
+ 'benchmark':
+ {'kpi': ['packets_in', 'packets_fwd', 'packets_dropped']},
+ 'connection-point': [{'type': 'VPORT', 'name': 'xe0'},
+ {'type': 'VPORT', 'name': 'xe1'}],
+ 'id': 'VpeApproxVnf', 'name': 'VPEVnfSsh'}]}}
+
+ def test___init__(self):
+ fixed_profile = \
+ FixedProfile(TrafficProfile)
+ self.assertIsNotNone(fixed_profile)
+
+ def test_execute(self):
+ traffic_generator = mock.Mock(autospec=TrafficProfile)
+ traffic_generator.my_ports = [0, 1]
+ traffic_generator.vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ traffic_generator.client = \
+ mock.Mock(return_value=True)
+ fixed_profile = FixedProfile(self.TRAFFIC_PROFILE)
+ fixed_profile.params = self.TRAFFIC_PROFILE
+ fixed_profile.first_run = True
+ self.assertEqual(None, fixed_profile.execute(traffic_generator))
diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
new file mode 100644
index 000000000..4f0855543
--- /dev/null
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_ping.py
@@ -0,0 +1,247 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+from __future__ import absolute_import
+import unittest
+import mock
+from multiprocessing import Queue
+
+from yardstick.network_services.vnf_generic.vnf.tg_ping import \
+ PingParser, PingTrafficGen
+from yardstick.network_services.traffic_profile.base import TrafficProfile
+
+
+class TestPingParser(unittest.TestCase):
+ def test___init__(self):
+ q_out = Queue()
+ ping_parser = PingParser(q_out)
+ self.assertIsNotNone(ping_parser.queue)
+
+ def test_clear(self):
+ sample_out = """
+64 bytes from 10.102.22.93: icmp_seq=3 ttl=64 time=0.296 ms
+ """
+ q_out = Queue()
+ ping_parser = PingParser(q_out)
+ ping_parser.write(sample_out)
+ ping_parser.clear()
+ self.assertEqual(True, q_out.empty())
+
+ def test_close(self):
+ q_out = Queue()
+ ping_parser = PingParser(q_out)
+ self.assertIsNone(ping_parser.close())
+
+ def test_write(self):
+ sample_out = """
+64 bytes from 10.102.22.93: icmp_seq=3 ttl=64 time=0.296 ms
+ """
+ q_out = Queue()
+ ping_parser = PingParser(q_out)
+ ping_parser.write(sample_out)
+
+ self.assertEqual({"packets_received": 3.0, "rtt": 0.296}, q_out.get())
+
+
+class TestPingTrafficGen(unittest.TestCase):
+ VNFD = {'vnfd:vnfd-catalog':
+ {'vnfd':
+ [{'short-name': 'VpeVnf',
+ 'vdu':
+ [{'routing_table':
+ [{'network': '152.16.100.20',
+ 'netmask': '255.255.255.0',
+ 'gateway': '152.16.100.20',
+ 'if': 'xe0'},
+ {'network': '152.16.40.20',
+ 'netmask': '255.255.255.0',
+ 'gateway': '152.16.40.20',
+ 'if': 'xe1'}],
+ 'description': 'VPE approximation using DPDK',
+ 'name': 'vpevnf-baremetal',
+ 'nd_route_tbl':
+ [{'network': '0064:ff9b:0:0:0:0:9810:6414',
+ 'netmask': '112',
+ 'gateway': '0064:ff9b:0:0:0:0:9810:6414',
+ 'if': 'xe0'},
+ {'network': '0064:ff9b:0:0:0:0:9810:2814',
+ 'netmask': '112',
+ 'gateway': '0064:ff9b:0:0:0:0:9810:2814',
+ 'if': 'xe1'}],
+ 'id': 'vpevnf-baremetal',
+ 'external-interface':
+ [{'virtual-interface':
+ {'dst_mac': '00:00:00:00:00:04',
+ 'vpci': '0000:05:00.0',
+ 'local_ip': '152.16.100.19',
+ 'type': 'PCI-PASSTHROUGH',
+ 'netmask': '255.255.255.0',
+ 'dpdk_port_num': '0',
+ 'bandwidth': '10 Gbps',
+ 'driver': "i40e",
+ 'dst_ip': '152.16.100.20',
+ 'local_iface_name': 'xe0',
+ 'local_mac': '00:00:00:00:00:02'},
+ 'vnfd-connection-point-ref': 'xe0',
+ 'name': 'xe0'},
+ {'virtual-interface':
+ {'dst_mac': '00:00:00:00:00:03',
+ 'vpci': '0000:05:00.1',
+ 'local_ip': '152.16.40.19',
+ 'type': 'PCI-PASSTHROUGH',
+ 'driver': "i40e",
+ 'netmask': '255.255.255.0',
+ 'dpdk_port_num': '1',
+ 'bandwidth': '10 Gbps',
+ 'dst_ip': '152.16.40.20',
+ 'local_iface_name': 'xe1',
+ 'local_mac': '00:00:00:00:00:01'},
+ 'vnfd-connection-point-ref': 'xe1',
+ 'name': 'xe1'}]}],
+ 'description': 'Vpe approximation using DPDK',
+ 'mgmt-interface':
+ {'vdu-id': 'vpevnf-baremetal',
+ 'host': '1.1.1.1',
+ 'password': 'r00t',
+ 'user': 'root',
+ 'ip': '1.1.1.1'},
+ 'benchmark':
+ {'kpi': ['packets_in', 'packets_fwd', 'packets_dropped']},
+ 'connection-point': [{'type': 'VPORT', 'name': 'xe0'},
+ {'type': 'VPORT', 'name': 'xe1'}],
+ 'id': 'VpeApproxVnf', 'name': 'VPEVnfSsh'}]}}
+
+ TRAFFIC_PROFILE = {
+ "schema": "isb:traffic_profile:0.1",
+ "name": "fixed",
+ "description": "Fixed traffic profile to run UDP traffic",
+ "traffic_profile": {
+ "traffic_type": "FixedTraffic",
+ "frame_rate": 100, # pps
+ "flow_number": 10,
+ "frame_size": 64}}
+
+ def test___init__(self):
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ping_traffic_gen = PingTrafficGen(vnfd)
+ self.assertEqual(ping_traffic_gen._queue, None)
+
+ def test_collect_kpi(self):
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ ping_traffic_gen = PingTrafficGen(vnfd)
+ ping_traffic_gen._queue = Queue()
+ ping_traffic_gen._queue.put({})
+ ping_traffic_gen.collect_kpi()
+ self.assertEqual({}, ping_traffic_gen._result)
+
+ def test_instantiate(self):
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ping_traffic_gen = PingTrafficGen(vnfd)
+ self.assertEqual(None, ping_traffic_gen.instantiate({}, {}))
+
+ def test_listen_traffic(self):
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ping_traffic_gen = PingTrafficGen(vnfd)
+ self.assertEqual(None, ping_traffic_gen.listen_traffic({}))
+
+ def test_run_traffic(self):
+ mock_traffic_profile = mock.Mock(autospec=TrafficProfile)
+ mock_traffic_profile.get_traffic_definition.return_value = "64"
+ mock_traffic_profile.params = self.TRAFFIC_PROFILE
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh_mock.run = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ self.sut = PingTrafficGen(vnfd)
+ self.sut.connection = mock.Mock()
+ self.sut.connection.run = mock.Mock()
+ self.sut._traffic_runner = mock.Mock(return_value=0)
+ self.assertEqual(
+ False, self.sut.run_traffic(mock_traffic_profile))
+
+ def test_run_traffic_process(self):
+ mock_traffic_profile = mock.Mock(autospec=TrafficProfile)
+ mock_traffic_profile.get_traffic_definition.return_value = "64"
+ mock_traffic_profile.params = self.TRAFFIC_PROFILE
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh_mock.run = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ self.sut = PingTrafficGen(vnfd)
+ self.sut.connection = mock.Mock()
+ self.sut.connection.run = mock.Mock()
+ q = Queue()
+ self.sut._traffic_runner(mock_traffic_profile, q)
+ self.sut.connection.run.assert_called_with(
+ "ping -s 64 152.16.100.20",
+ stdout=q, keep_stdin_open=True, pty=True)
+
+ def test_scale(self):
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh_mock.run = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ flavor = ""
+ ping_traffic_gen = PingTrafficGen(vnfd)
+ self.assertRaises(NotImplementedError, ping_traffic_gen.scale, flavor)
+
+ def test_terminate(self):
+ with mock.patch("yardstick.ssh.SSH") as ssh:
+ ssh_mock = mock.Mock(autospec=ssh.SSH)
+ ssh_mock.execute = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh_mock.run = \
+ mock.Mock(return_value=(0, "", ""))
+ ssh.return_value = ssh_mock
+ vnfd = self.VNFD['vnfd:vnfd-catalog']['vnfd'][0]
+ ping_traffic_gen = PingTrafficGen(vnfd)
+ self.assertEqual(None, ping_traffic_gen.terminate())
diff --git a/yardstick/network_services/traffic_profile/fixed.py b/yardstick/network_services/traffic_profile/fixed.py
new file mode 100644
index 000000000..a456c2bd7
--- /dev/null
+++ b/yardstick/network_services/traffic_profile/fixed.py
@@ -0,0 +1,60 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" Fixed traffic profile definitions """
+
+from __future__ import absolute_import
+
+from yardstick.network_services.traffic_profile.base import TrafficProfile
+from stl.trex_stl_lib.trex_stl_streams import STLTXCont
+from stl.trex_stl_lib.trex_stl_client import STLStream
+from stl.trex_stl_lib.trex_stl_packet_builder_scapy import STLPktBuilder
+from stl.trex_stl_lib import api as Pkt
+
+
+class FixedProfile(TrafficProfile):
+ """
+ This profile adds a single stream at the beginning of the traffic session
+ """
+ def __init__(self, tp_config):
+ super(FixedProfile, self).__init__(tp_config)
+ self.first_run = True
+
+ def execute(self, traffic_generator):
+ if self.first_run:
+ for index, ports in enumerate(traffic_generator.my_ports):
+ ext_intf = \
+ traffic_generator.vnfd["vdu"][0]["external-interface"]
+ virtual_interface = ext_intf[index]["virtual-interface"]
+ src_ip = virtual_interface["local_ip"]
+ dst_ip = virtual_interface["dst_ip"]
+
+ traffic_generator.client.add_streams(
+ self._create_stream(src_ip, dst_ip),
+ ports=[ports])
+
+ traffic_generator.client.start(ports=traffic_generator.my_ports)
+ self.first_run = False
+
+ def _create_stream(self, src_ip, dst_ip):
+ base_frame = \
+ Pkt.Ether() / Pkt.IP(src=src_ip, dst=dst_ip) / Pkt.UDP(dport=12,
+ sport=1025)
+
+ frame_size = self.params["traffic_profile"]["frame_size"]
+ pad_size = max(0, frame_size - len(base_frame))
+ frame = base_frame / ("x" * max(0, pad_size))
+
+ frame_rate = self.params["traffic_profile"]["frame_rate"]
+ return STLStream(packet=STLPktBuilder(pkt=frame),
+ mode=STLTXCont(pps=frame_rate))
diff --git a/yardstick/network_services/vnf_generic/vnf/tg_ping.py b/yardstick/network_services/vnf_generic/vnf/tg_ping.py
new file mode 100644
index 000000000..2844a5c01
--- /dev/null
+++ b/yardstick/network_services/vnf_generic/vnf/tg_ping.py
@@ -0,0 +1,167 @@
+# Copyright (c) 2016-2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+""" PING acts as traffic generation and vnf definitions based on IETS Spec """
+
+from __future__ import absolute_import
+from __future__ import print_function
+import logging
+import multiprocessing
+import re
+import time
+import os
+
+from yardstick import ssh
+from yardstick.network_services.vnf_generic.vnf.base import GenericTrafficGen
+from yardstick.network_services.utils import provision_tool
+
+LOG = logging.getLogger(__name__)
+
+
+class PingParser(object):
+ """ Class providing file-like API for talking with SSH connection """
+
+ def __init__(self, q_out):
+ self.queue = q_out
+ self.closed = False
+
+ def write(self, chunk):
+ """ 64 bytes from 10.102.22.93: icmp_seq=1 ttl=64 time=0.296 ms """
+ match = re.search(r"icmp_seq=(\d+).*time=([0-9.]+)", chunk)
+ LOG.debug("Parser called on %s", chunk)
+ if match:
+ # IMPORTANT: in order for the data to be properly taken
+ # in by InfluxDB, it needs to be converted to numeric types
+ self.queue.put({"packets_received": float(match.group(1)),
+ "rtt": float(match.group(2))})
+
+ def close(self):
+ ''' close the ssh connection '''
+ pass
+
+ def clear(self):
+ ''' clear queue till Empty '''
+ while self.queue.qsize() > 0:
+ self.queue.get()
+
+
+class PingTrafficGen(GenericTrafficGen):
+ """
+ This traffic generator can ping a single IP with pingsize
+ and target given in traffic profile
+ """
+
+ def __init__(self, vnfd):
+ super(PingTrafficGen, self).__init__(vnfd)
+ self._result = {}
+ self._parser = None
+ self._queue = None
+ self._traffic_process = None
+
+ mgmt_interface = vnfd["mgmt-interface"]
+ ssh_port = mgmt_interface.get("ssh_port", ssh.DEFAULT_PORT)
+ LOG.debug("Connecting to %s", mgmt_interface["ip"])
+
+ self.connection = ssh.SSH(mgmt_interface["user"], mgmt_interface["ip"],
+ password=mgmt_interface["password"],
+ port=ssh_port)
+ self.connection.wait()
+
+ def _bind_device_kernel(self, connection):
+ dpdk_nic_bind = \
+ provision_tool(self.connection,
+ os.path.join(self.bin_path, "dpdk_nic_bind.py"))
+
+ drivers = {intf["virtual-interface"]["vpci"]:
+ intf["virtual-interface"]["driver"]
+ for intf in self.vnfd["vdu"][0]["external-interface"]}
+
+ commands = \
+ ['"{0}" --force -b "{1}" "{2}"'.format(dpdk_nic_bind, value, key)
+ for key, value in drivers.items()]
+ for command in commands:
+ connection.execute(command)
+
+ for index, out in enumerate(self.vnfd["vdu"][0]["external-interface"]):
+ vpci = out["virtual-interface"]["vpci"]
+ net = "find /sys/class/net -lname '*{}*' -printf '%f'".format(vpci)
+ out = connection.execute(net)[1]
+ ifname = out.split('/')[-1].strip('\n')
+ self.vnfd["vdu"][0]["external-interface"][index][
+ "virtual-interface"]["local_iface_name"] = ifname
+
+ def scale(self, flavor=""):
+ ''' scale vnfbased on flavor input '''
+ super(PingTrafficGen, self).scale(flavor)
+
+ def instantiate(self, scenario_cfg, context_cfg):
+ self._result = {"packets_received": 0, "rtt": 0}
+ self._bind_device_kernel(self.connection)
+
+ def run_traffic(self, traffic_profile):
+ self._queue = multiprocessing.Queue()
+ self._parser = PingParser(self._queue)
+ self._traffic_process = \
+ multiprocessing.Process(target=self._traffic_runner,
+ args=(traffic_profile, self._parser))
+ self._traffic_process.start()
+ # Wait for traffic process to start
+ time.sleep(4)
+ return self._traffic_process.is_alive()
+
+ def listen_traffic(self, traffic_profile):
+ """ Not needed for ping
+
+ :param traffic_profile:
+ :return:
+ """
+ pass
+
+ def _traffic_runner(self, traffic_profile, filewrapper):
+
+ mgmt_interface = self.vnfd["mgmt-interface"]
+ ssh_port = mgmt_interface.get("ssh_port", ssh.DEFAULT_PORT)
+ self.connection = ssh.SSH(mgmt_interface["user"], mgmt_interface["ip"],
+ password=mgmt_interface["password"],
+ port=ssh_port)
+ self.connection.wait()
+ external_interface = self.vnfd["vdu"][0]["external-interface"]
+ virtual_interface = external_interface[0]["virtual-interface"]
+ target_ip = virtual_interface["dst_ip"].split('/')[0]
+ local_ip = virtual_interface["local_ip"].split('/')[0]
+ local_if_name = \
+ virtual_interface["local_iface_name"].split('/')[0]
+ packet_size = traffic_profile.params["traffic_profile"]["frame_size"]
+
+ run_cmd = []
+
+ run_cmd.append("ip addr flush %s" % local_if_name)
+ run_cmd.append("ip addr add %s/24 dev %s" % (local_ip, local_if_name))
+ run_cmd.append("ip link set %s up" % local_if_name)
+
+ for cmd in run_cmd:
+ self.connection.execute(cmd)
+
+ ping_cmd = ("ping -s %s %s" % (packet_size, target_ip))
+ self.connection.run(ping_cmd, stdout=filewrapper,
+ keep_stdin_open=True, pty=True)
+
+ def collect_kpi(self):
+ if not self._queue.empty():
+ kpi = self._queue.get()
+ self._result.update(kpi)
+ return self._result
+
+ def terminate(self):
+ if self._traffic_process is not None:
+ self._traffic_process.terminate()