2 # Copyright 2016 Cisco Systems, Inc. All rights reserved.
4 # Licensed under the Apache License, Version 2.0 (the "License"); you may
5 # not use this file except in compliance with the License. You may obtain
6 # a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 # License for the specific language governing permissions and limitations
17 from __init__ import __version__
19 from attrdict import AttrDict
20 from chain_runner import ChainRunner
21 from collections import defaultdict
22 from config import config_load
23 from config import config_loads
27 from factory import BasicFactory
28 from fluentd import FluentLogHandler
33 from nfvbenchd import WebSocketIoServer
36 from pkg_resources import resource_string
37 from specs import ChainType
38 from specs import Specs
39 from summarizer import NFVBenchSummarizer
42 from traffic_client import TrafficGeneratorFactory
48 class NFVBench(object):
49 """Main class of NFV benchmarking tool."""
51 STATUS_ERROR = 'ERROR'
53 def __init__(self, config, openstack_spec, config_plugin, factory, notifier=None):
54 self.base_config = config
56 self.config_plugin = config_plugin
57 self.factory = factory
58 self.notifier = notifier
59 self.cred = credentials.Credentials(config.openrc_file, None, False)
60 self.chain_runner = None
62 self.specs.set_openstack_spec(openstack_spec)
63 self.clients = defaultdict(lambda: None)
68 self.specs.set_run_spec(self.config_plugin.get_run_spec(self.specs.openstack))
69 self.chain_runner = ChainRunner(self.config,
76 def set_notifier(self, notifier):
77 self.notifier = notifier
79 def run(self, opts, args):
80 status = NFVBench.STATUS_OK
84 # take a snapshot of the current time for this new run
85 # so that all subsequent logs can relate to this run
86 fluent_logger.start_new_run()
89 self.update_config(opts)
93 "date": datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
94 "nfvbench_version": __version__,
96 "vswitch": self.specs.openstack.vswitch,
97 "encaps": self.specs.openstack.encaps
99 "config": self.config_plugin.prepare_results_config(copy.deepcopy(self.config)),
102 "service_chain": self.chain_runner.run(),
103 "versions": self.chain_runner.get_version(),
107 result['benchmarks']['network']['versions'].update(self.config_plugin.get_version())
109 status = NFVBench.STATUS_ERROR
110 message = traceback.format_exc()
111 except KeyboardInterrupt:
112 status = NFVBench.STATUS_ERROR
113 message = traceback.format_exc()
115 if self.chain_runner:
116 self.chain_runner.close()
118 if status == NFVBench.STATUS_OK:
119 result = utils.dict_to_json_dict(result)
127 'error_message': message
130 def print_summary(self, result):
131 """Print summary of the result"""
132 summary = NFVBenchSummarizer(result)
133 LOG.info(str(summary))
135 def save(self, result):
136 """Save results in json format file."""
137 utils.save_json_result(result,
138 self.config.json_file,
139 self.config.std_json_path,
140 self.config.service_chain,
141 self.config.service_chain_count,
142 self.config.flow_count,
143 self.config.frame_sizes)
145 def update_config(self, opts):
146 self.config = AttrDict(dict(self.base_config))
147 self.config.update(opts)
149 self.config.service_chain = self.config.service_chain.upper()
150 self.config.service_chain_count = int(self.config.service_chain_count)
151 self.config.flow_count = utils.parse_flow_count(self.config.flow_count)
152 required_flow_count = self.config.service_chain_count * 2
153 if self.config.flow_count < required_flow_count:
154 LOG.info("Flow count '{}' has been set to minimum value of '{}' "
155 "for current configuration".format(self.config.flow_count,
156 required_flow_count))
157 self.config.flow_count = required_flow_count
159 if self.config.flow_count % 2 != 0:
160 self.config.flow_count += 1
162 self.config.duration_sec = float(self.config.duration_sec)
163 self.config.interval_sec = float(self.config.interval_sec)
165 # Get traffic generator profile config
166 if not self.config.generator_profile:
167 self.config.generator_profile = self.config.traffic_generator.default_profile
169 generator_factory = TrafficGeneratorFactory(self.config)
170 self.config.generator_config = \
171 generator_factory.get_generator_config(self.config.generator_profile)
173 if not any(self.config.generator_config.pcis):
174 raise Exception("PCI addresses configuration for selected traffic generator profile "
175 "({tg_profile}) are missing. Please specify them in configuration file."
176 .format(tg_profile=self.config.generator_profile))
178 if self.config.traffic is None or len(self.config.traffic) == 0:
179 raise Exception("No traffic profile found in traffic configuration, "
180 "please fill 'traffic' section in configuration file.")
182 if isinstance(self.config.traffic, tuple):
183 self.config.traffic = self.config.traffic[0]
185 self.config.frame_sizes = generator_factory.get_frame_sizes(self.config.traffic.profile)
187 self.config.ipv6_mode = False
188 self.config.no_dhcp = True
189 self.config.same_network_only = True
190 if self.config.openrc_file:
191 self.config.openrc_file = os.path.expanduser(self.config.openrc_file)
193 self.config.ndr_run = (not self.config.no_traffic
194 and 'ndr' in self.config.rate.strip().lower().split('_'))
195 self.config.pdr_run = (not self.config.no_traffic
196 and 'pdr' in self.config.rate.strip().lower().split('_'))
197 self.config.single_run = (not self.config.no_traffic
198 and not (self.config.ndr_run or self.config.pdr_run))
200 if self.config.vlans and len(self.config.vlans) != 2:
201 raise Exception('Number of configured VLAN IDs for VLAN tagging must be exactly 2.')
203 self.config.json_file = self.config.json if self.config.json else None
204 if self.config.json_file:
205 (path, filename) = os.path.split(self.config.json)
206 if not os.path.exists(path):
207 raise Exception('Please provide existing path for storing results in JSON file. '
208 'Path used: {path}'.format(path=path))
210 self.config.std_json_path = self.config.std_json if self.config.std_json else None
211 if self.config.std_json_path:
212 if not os.path.exists(self.config.std_json):
213 raise Exception('Please provide existing path for storing results in JSON file. '
214 'Path used: {path}'.format(path=self.config.std_json_path))
216 self.config_plugin.validate_config(self.config, self.specs.openstack)
219 def parse_opts_from_cli():
220 parser = argparse.ArgumentParser()
222 parser.add_argument('-c', '--config', dest='config',
224 help='Override default values with a config file or '
225 'a yaml/json config string',
226 metavar='<file_name_or_yaml>')
228 parser.add_argument('--server', dest='server',
231 metavar='<http_root_pathname>',
232 help='Run nfvbench in server mode and pass'
233 ' the HTTP root folder full pathname')
235 parser.add_argument('--host', dest='host',
238 help='Host IP address on which server will be listening (default 0.0.0.0)')
240 parser.add_argument('-p', '--port', dest='port',
243 help='Port on which server will be listening (default 7555)')
245 parser.add_argument('-sc', '--service-chain', dest='service_chain',
246 choices=BasicFactory.chain_classes,
248 help='Service chain to run')
250 parser.add_argument('-scc', '--service-chain-count', dest='service_chain_count',
252 help='Set number of service chains to run',
253 metavar='<service_chain_count>')
255 parser.add_argument('-fc', '--flow-count', dest='flow_count',
257 help='Set number of total flows for all chains and all directions',
258 metavar='<flow_count>')
260 parser.add_argument('--rate', dest='rate',
262 help='Specify rate in pps, bps or %% as total for all directions',
265 parser.add_argument('--duration', dest='duration_sec',
267 help='Set duration to run traffic generator (in seconds)',
268 metavar='<duration_sec>')
270 parser.add_argument('--interval', dest='interval_sec',
272 help='Set interval to record traffic generator stats (in seconds)',
273 metavar='<interval_sec>')
275 parser.add_argument('--inter-node', dest='inter_node',
278 help='run VMs in different compute nodes (PVVP only)')
280 parser.add_argument('--sriov', dest='sriov',
283 help='Use SRIOV (no vswitch - requires SRIOV support in compute nodes)')
285 parser.add_argument('-d', '--debug', dest='debug',
288 help='print debug messages (verbose)')
290 parser.add_argument('-g', '--traffic-gen', dest='generator_profile',
292 help='Traffic generator profile to use')
295 parser.add_argument('-0', '--no-traffic', dest='no_traffic',
298 help='Check config and connectivity only - do not generate traffic')
300 parser.add_argument('--no-arp', dest='no_arp',
303 help='Do not use ARP to find MAC addresses, '
304 'instead use values in config file')
306 parser.add_argument('--no-reset', dest='no_reset',
309 help='Do not reset counters prior to running')
311 parser.add_argument('--no-int-config', dest='no_int_config',
314 help='Skip interfaces config on EXT service chain')
316 parser.add_argument('--no-tor-access', dest='no_tor_access',
319 help='Skip TOR switch configuration and retrieving of stats')
321 parser.add_argument('--no-vswitch-access', dest='no_vswitch_access',
324 help='Skip vswitch configuration and retrieving of stats')
326 parser.add_argument('--no-cleanup', dest='no_cleanup',
329 help='no cleanup after run')
331 parser.add_argument('--json', dest='json',
333 help='store results in json format file',
334 metavar='<path>/<filename>')
336 parser.add_argument('--std-json', dest='std_json',
338 help='store results in json format file with nfvbench standard filename: '
339 '<service-chain-type>-<service-chain-count>-<flow-count>'
340 '-<packet-sizes>.json',
343 parser.add_argument('--show-default-config', dest='show_default_config',
346 help='print the default config in yaml format (unedited)')
348 parser.add_argument('--show-config', dest='show_config',
351 help='print the running config in json format')
353 parser.add_argument('-ss', '--show-summary', dest='summary',
355 help='Show summary from nfvbench json file',
358 parser.add_argument('-v', '--version', dest='version',
363 parser.add_argument('-fs', '--frame-size', dest='frame_sizes',
365 help='Override traffic profile frame sizes',
366 metavar='<frame_size_bytes or IMIX>')
368 parser.add_argument('--unidir', dest='unidir',
371 help='Override traffic profile direction (requires -fs)')
373 parser.add_argument('--log-file', '--logfile', dest='log_file',
375 help='Filename for saving logs',
376 metavar='<log_file>')
378 opts, unknown_opts = parser.parse_known_args()
379 return opts, unknown_opts
382 def load_default_config():
383 default_cfg = resource_string(__name__, "cfg.default.yaml")
384 config = config_loads(default_cfg)
385 config.name = '(built-in default config)'
386 return config, default_cfg
389 def override_custom_traffic(config, frame_sizes, unidir):
390 """Override the traffic profiles with a custom one
392 if frame_sizes is not None:
393 traffic_profile_name = "custom_traffic_profile"
394 config.traffic_profile = [
396 "l2frame_size": frame_sizes,
397 "name": traffic_profile_name
401 traffic_profile_name = config.traffic["profile"]
403 bidirectional = config.traffic['bidirectional'] if unidir is None else not unidir
405 "bidirectional": bidirectional,
406 "profile": traffic_profile_name
410 def check_physnet(name, netattrs):
411 if not netattrs.physical_network:
412 raise Exception("SRIOV requires physical_network to be specified for the {n} network"
414 if not netattrs.segmentation_id:
415 raise Exception("SRIOV requires segmentation_id to be specified for the {n} network"
421 run_summary_required = False
424 # load default config file
425 config, default_cfg = load_default_config()
426 # create factory for platform specific classes
428 factory_module = importlib.import_module(config['factory_module'])
429 factory = getattr(factory_module, config['factory_class'])()
430 except AttributeError:
431 raise Exception("Requested factory module '{m}' or class '{c}' was not found."
432 .format(m=config['factory_module'], c=config['factory_class']))
433 # create config plugin for this platform
434 config_plugin = factory.get_config_plugin_class()(config)
435 config = config_plugin.get_config()
436 openstack_spec = config_plugin.get_openstack_spec()
438 # setup the fluent logger as soon as possible right after the config plugin is called
439 if config.fluentd.logging_tag:
440 fluent_logger = FluentLogHandler(config.fluentd.logging_tag,
441 fluentd_ip=config.fluentd.ip,
442 fluentd_port=config.fluentd.port)
443 LOG.addHandler(fluent_logger)
447 opts, unknown_opts = parse_opts_from_cli()
448 log.set_level(debug=opts.debug)
451 print pbr.version.VersionInfo('nfvbench').version_string_with_vcs()
455 with open(opts.summary) as json_data:
456 print NFVBenchSummarizer(json.load(json_data))
459 # show default config in text/yaml format
460 if opts.show_default_config:
466 # do not check extra_specs in flavor as it can contain any key/value pairs
467 whitelist_keys = ['extra_specs']
468 # override default config options with start config at path parsed from CLI
469 # check if it is an inline yaml/json config or a file name
470 if os.path.isfile(opts.config):
471 LOG.info('Loading configuration file: ' + opts.config)
472 config = config_load(opts.config, config, whitelist_keys)
473 config.name = os.path.basename(opts.config)
475 LOG.info('Loading configuration string: ' + opts.config)
476 config = config_loads(opts.config, config, whitelist_keys)
478 # traffic profile override options
479 override_custom_traffic(config, opts.frame_sizes, opts.unidir)
481 # copy over cli options that are used in config
482 config.generator_profile = opts.generator_profile
486 config.log_file = opts.log_file
488 # show running config in json format
490 print json.dumps(config, sort_keys=True, indent=4)
493 if config.sriov and config.service_chain != ChainType.EXT:
494 # if sriov is requested (does not apply to ext chains)
495 # make sure the physnet names are specified
496 check_physnet("left", config.internal_networks.left)
497 check_physnet("right", config.internal_networks.right)
498 if config.service_chain == ChainType.PVVP:
499 check_physnet("middle", config.internal_networks.middle)
501 # update the config in the config plugin as it might have changed
502 # in a copy of the dict (config plugin still holds the original dict)
503 config_plugin.set_config(config)
505 # add file log if requested
507 log.add_file_logger(config.log_file)
509 nfvbench = NFVBench(config, openstack_spec, config_plugin, factory)
512 if os.path.isdir(opts.server):
513 server = WebSocketIoServer(opts.server, nfvbench, fluent_logger)
514 nfvbench.set_notifier(server)
516 port = int(opts.port)
518 server.run(host=opts.host)
520 server.run(host=opts.host, port=port)
522 print 'Invalid HTTP root directory: ' + opts.server
525 with utils.RunLock():
526 run_summary_required = True
528 err_msg = 'Unknown options: ' + ' '.join(unknown_opts)
530 raise Exception(err_msg)
532 # remove unfilled values
533 opts = {k: v for k, v in vars(opts).iteritems() if v is not None}
535 params = ' '.join(str(e) for e in sys.argv[1:])
536 result = nfvbench.run(opts, params)
537 if 'error_message' in result:
538 raise Exception(result['error_message'])
540 if 'result' in result and result['status']:
541 nfvbench.save(result['result'])
542 nfvbench.print_summary(result['result'])
543 except Exception as exc:
544 run_summary_required = True
546 'status': NFVBench.STATUS_ERROR,
547 'error_message': traceback.format_exc()
552 # only send a summary record if there was an actual nfvbench run or
553 # if an error/exception was logged.
554 fluent_logger.send_run_summary(run_summary_required)
557 if __name__ == '__main__':