NFVBENCH-85 Add option to verify L2 loopback at TOR switch
[nfvbench.git] / nfvbench / nfvbench.py
index 52fb57b..1cb5a9c 100644 (file)
 #    under the License.
 #
 
-from __init__ import __version__
 import argparse
+from collections import defaultdict
+import copy
+import datetime
+import importlib
+import json
+import os
+import sys
+import traceback
+
 from attrdict import AttrDict
+import pbr.version
+from pkg_resources import resource_string
+
+from __init__ import __version__
 from chain_runner import ChainRunner
-from collections import defaultdict
+from cleanup import Cleaner
 from config import config_load
 from config import config_loads
-import copy
-import credentials
-import datetime
+import credentials as credentials
 from factory import BasicFactory
 from fluentd import FluentLogHandler
-import importlib
-import json
 import log
 from log import LOG
 from nfvbenchd import WebSocketIoServer
-import os
-import pbr.version
-from pkg_resources import resource_string
 from specs import ChainType
 from specs import Specs
 from summarizer import NFVBenchSummarizer
-import sys
-import traceback
 from traffic_client import TrafficGeneratorFactory
 import utils
 
@@ -47,6 +50,7 @@ fluent_logger = None
 
 class NFVBench(object):
     """Main class of NFV benchmarking tool."""
+
     STATUS_OK = 'OK'
     STATUS_ERROR = 'ERROR'
 
@@ -56,7 +60,8 @@ class NFVBench(object):
         self.config_plugin = config_plugin
         self.factory = factory
         self.notifier = notifier
-        self.cred = credentials.Credentials(config.openrc_file, None, False)
+        self.cred = credentials.Credentials(config.openrc_file, None, False) \
+            if config.openrc_file else None
         self.chain_runner = None
         self.specs = Specs()
         self.specs.set_openstack_spec(openstack_spec)
@@ -65,7 +70,7 @@ class NFVBench(object):
         sys.stdout.flush()
 
     def setup(self):
-        self.specs.set_run_spec(self.config_plugin.get_run_spec(self.specs.openstack))
+        self.specs.set_run_spec(self.config_plugin.get_run_spec(self.config, self.specs.openstack))
         self.chain_runner = ChainRunner(self.config,
                                         self.clients,
                                         self.cred,
@@ -88,14 +93,22 @@ class NFVBench(object):
         try:
             self.update_config(opts)
             self.setup()
-
+            new_frame_sizes = []
+            min_packet_size = "68" if self.config.vlan_tagging else "64"
+            for frame_size in self.config.frame_sizes:
+                try:
+                    if int(frame_size) < int(min_packet_size):
+                        new_frame_sizes.append(min_packet_size)
+                        LOG.info("Adjusting frame size %s Bytes to minimum size %s Bytes due to " +
+                                 "traffic generator restriction", frame_size, min_packet_size)
+                    else:
+                        new_frame_sizes.append(frame_size)
+                except ValueError:
+                    new_frame_sizes.append(frame_size)
+            self.config.actual_frame_sizes = tuple(new_frame_sizes)
             result = {
                 "date": datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
                 "nfvbench_version": __version__,
-                "openstack_spec": {
-                    "vswitch": self.specs.openstack.vswitch,
-                    "encaps": self.specs.openstack.encaps
-                },
                 "config": self.config_plugin.prepare_results_config(copy.deepcopy(self.config)),
                 "benchmarks": {
                     "network": {
@@ -104,6 +117,9 @@ class NFVBench(object):
                     }
                 }
             }
+            if self.specs.openstack:
+                result['openstack_spec'] = {"vswitch": self.specs.openstack.vswitch,
+                                            "encaps": self.specs.openstack.encaps}
             result['benchmarks']['network']['versions'].update(self.config_plugin.get_version())
         except Exception:
             status = NFVBench.STATUS_ERROR
@@ -115,28 +131,21 @@ class NFVBench(object):
             if self.chain_runner:
                 self.chain_runner.close()
 
-            if status == NFVBench.STATUS_OK:
-                result = utils.dict_to_json_dict(result)
-                return {
-                    'status': status,
-                    'result': result
-                }
-            else:
-                return {
-                    'status': status,
-                    'error_message': message
-                }
+        if status == NFVBench.STATUS_OK:
+            result = utils.dict_to_json_dict(result)
+            return {
+                'status': status,
+                'result': result
+            }
+        return {
+            'status': status,
+            'error_message': message
+        }
 
     def prepare_summary(self, result):
-        """Prepares summary of the result to print and send it to logger (eg: fluentd)"""
+        """Prepare summary of the result to print and send it to logger (eg: fluentd)."""
         global fluent_logger
-        sender = None
-        if self.config.fluentd.result_tag:
-            sender = FluentLogHandler(self.config.fluentd.result_tag,
-                                      fluentd_ip=self.config.fluentd.ip,
-                                      fluentd_port=self.config.fluentd.port)
-            sender.runlogdate = fluent_logger.runlogdate
-        summary = NFVBenchSummarizer(result, sender)
+        summary = NFVBenchSummarizer(result, fluent_logger)
         LOG.info(str(summary))
 
     def save(self, result):
@@ -158,9 +167,9 @@ class NFVBench(object):
         self.config.flow_count = utils.parse_flow_count(self.config.flow_count)
         required_flow_count = self.config.service_chain_count * 2
         if self.config.flow_count < required_flow_count:
-            LOG.info("Flow count '{}' has been set to minimum value of '{}' "
-                     "for current configuration".format(self.config.flow_count,
-                                                        required_flow_count))
+            LOG.info("Flow count %d has been set to minimum value of '%d' "
+                     "for current configuration"self.config.flow_count,
+                     required_flow_count)
             self.config.flow_count = required_flow_count
 
         if self.config.flow_count % 2 != 0:
@@ -177,12 +186,31 @@ class NFVBench(object):
         self.config.generator_config = \
             generator_factory.get_generator_config(self.config.generator_profile)
 
+        # Check length of mac_addrs_left/right for serivce_chain EXT with no_arp
+        if self.config.service_chain == ChainType.EXT and self.config.no_arp:
+            if not (self.config.generator_config.mac_addrs_left is None and
+                    self.config.generator_config.mac_addrs_right is None):
+                if (self.config.generator_config.mac_addrs_left is None or
+                        self.config.generator_config.mac_addrs_right is None):
+                    raise Exception("mac_addrs_left and mac_addrs_right must either "
+                                    "both be None or have a number of entries matching "
+                                    "service_chain_count")
+                if not (len(self.config.generator_config.mac_addrs_left) ==
+                        self.config.service_chain_count and
+                        len(self.config.generator_config.mac_addrs_right) ==
+                        self.config.service_chain_count):
+                    raise Exception("length of mac_addrs_left ({a}) and/or mac_addrs_right ({b}) "
+                                    "does not match service_chain_count ({c})"
+                                    .format(a=len(self.config.generator_config.mac_addrs_left),
+                                            b=len(self.config.generator_config.mac_addrs_right),
+                                            c=self.config.service_chain_count))
+
         if not any(self.config.generator_config.pcis):
             raise Exception("PCI addresses configuration for selected traffic generator profile "
                             "({tg_profile}) are missing. Please specify them in configuration file."
                             .format(tg_profile=self.config.generator_profile))
 
-        if self.config.traffic is None or len(self.config.traffic) == 0:
+        if self.config.traffic is None or not self.config.traffic:
             raise Exception("No traffic profile found in traffic configuration, "
                             "please fill 'traffic' section in configuration file.")
 
@@ -197,19 +225,19 @@ class NFVBench(object):
         if self.config.openrc_file:
             self.config.openrc_file = os.path.expanduser(self.config.openrc_file)
 
-        self.config.ndr_run = (not self.config.no_traffic
-                               and 'ndr' in self.config.rate.strip().lower().split('_'))
-        self.config.pdr_run = (not self.config.no_traffic
-                               and 'pdr' in self.config.rate.strip().lower().split('_'))
-        self.config.single_run = (not self.config.no_traffic
-                                  and not (self.config.ndr_run or self.config.pdr_run))
+        self.config.ndr_run = (not self.config.no_traffic and
+                               'ndr' in self.config.rate.strip().lower().split('_'))
+        self.config.pdr_run = (not self.config.no_traffic and
+                               'pdr' in self.config.rate.strip().lower().split('_'))
+        self.config.single_run = (not self.config.no_traffic and
+                                  not (self.config.ndr_run or self.config.pdr_run))
 
         if self.config.vlans and len(self.config.vlans) != 2:
             raise Exception('Number of configured VLAN IDs for VLAN tagging must be exactly 2.')
 
         self.config.json_file = self.config.json if self.config.json else None
         if self.config.json_file:
-            (path, filename) = os.path.split(self.config.json)
+            (path, _filename) = os.path.split(self.config.json)
             if not os.path.exists(path):
                 raise Exception('Please provide existing path for storing results in JSON file. '
                                 'Path used: {path}'.format(path=path))
@@ -226,6 +254,11 @@ class NFVBench(object):
 def parse_opts_from_cli():
     parser = argparse.ArgumentParser()
 
+    parser.add_argument('--status', dest='status',
+                        action='store_true',
+                        default=None,
+                        help='Provide NFVbench status')
+
     parser.add_argument('-c', '--config', dest='config',
                         action='store',
                         help='Override default values with a config file or '
@@ -289,6 +322,12 @@ def parse_opts_from_cli():
                         action='store_true',
                         help='Use SRIOV (no vswitch - requires SRIOV support in compute nodes)')
 
+    parser.add_argument('--use-sriov-middle-net', dest='use_sriov_middle_net',
+                        default=None,
+                        action='store_true',
+                        help='Use SRIOV to handle the middle network traffic '
+                             '(PVVP with SRIOV only)')
+
     parser.add_argument('-d', '--debug', dest='debug',
                         action='store_true',
                         default=None,
@@ -298,7 +337,6 @@ def parse_opts_from_cli():
                         action='store',
                         help='Traffic generator profile to use')
 
-
     parser.add_argument('-0', '--no-traffic', dest='no_traffic',
                         default=None,
                         action='store_true',
@@ -335,6 +373,16 @@ def parse_opts_from_cli():
                         action='store_true',
                         help='no cleanup after run')
 
+    parser.add_argument('--cleanup', dest='cleanup',
+                        default=None,
+                        action='store_true',
+                        help='Cleanup NFVbench resources (prompt to confirm)')
+
+    parser.add_argument('--force-cleanup', dest='force_cleanup',
+                        default=None,
+                        action='store_true',
+                        help='Cleanup NFVbench resources (do not prompt)')
+
     parser.add_argument('--json', dest='json',
                         action='store',
                         help='store results in json format file',
@@ -380,12 +428,17 @@ def parse_opts_from_cli():
     parser.add_argument('--log-file', '--logfile', dest='log_file',
                         action='store',
                         help='Filename for saving logs',
-                        metavar='<log_file>'),
+                        metavar='<log_file>')
 
     parser.add_argument('--user-label', '--userlabel', dest='user_label',
                         action='store',
                         help='Custom label for performance records')
 
+    parser.add_argument('--l2-loopback', '--l2loopback', dest='l2_loopback',
+                        action='store',
+                        metavar='<vlan>',
+                        help='Port to port or port to switch to port L2 loopback with VLAN id')
+
     opts, unknown_opts = parser.parse_known_args()
     return opts, unknown_opts
 
@@ -398,8 +451,7 @@ def load_default_config():
 
 
 def override_custom_traffic(config, frame_sizes, unidir):
-    """Override the traffic profiles with a custom one
-    """
+    """Override the traffic profiles with a custom one."""
     if frame_sizes is not None:
         traffic_profile_name = "custom_traffic_profile"
         config.traffic_profile = [
@@ -426,6 +478,23 @@ def check_physnet(name, netattrs):
         raise Exception("SRIOV requires segmentation_id to be specified for the {n} network"
                         .format(n=name))
 
+def status_cleanup(config, cleanup, force_cleanup):
+    LOG.info('Version: %s', pbr.version.VersionInfo('nfvbench').version_string_with_vcs())
+    # check if another run is pending
+    ret_code = 0
+    try:
+        with utils.RunLock():
+            LOG.info('Status: idle')
+    except Exception:
+        LOG.info('Status: busy (run pending)')
+        ret_code = 1
+    # check nfvbench resources
+    if config.openrc_file and config.service_chain != ChainType.EXT:
+        cleaner = Cleaner(config)
+        count = cleaner.show_resources()
+        if count and (cleanup or force_cleanup):
+            cleaner.clean(not force_cleanup)
+    sys.exit(ret_code)
 
 def main():
     global fluent_logger
@@ -444,16 +513,6 @@ def main():
         # create config plugin for this platform
         config_plugin = factory.get_config_plugin_class()(config)
         config = config_plugin.get_config()
-        openstack_spec = config_plugin.get_openstack_spec()
-
-        # setup the fluent logger as soon as possible right after the config plugin is called
-        if config.fluentd.logging_tag:
-            fluent_logger = FluentLogHandler(config.fluentd.logging_tag,
-                                             fluentd_ip=config.fluentd.ip,
-                                             fluentd_port=config.fluentd.port)
-            LOG.addHandler(fluent_logger)
-        else:
-            fluent_logger = None
 
         opts, unknown_opts = parse_opts_from_cli()
         log.set_level(debug=opts.debug)
@@ -467,14 +526,7 @@ def main():
                 result = json.load(json_data)
                 if opts.user_label:
                     result['config']['user_label'] = opts.user_label
-                if config.fluentd.result_tag:
-                    sender = FluentLogHandler(config.fluentd.result_tag,
-                                              fluentd_ip=config.fluentd.ip,
-                                              fluentd_port=config.fluentd.port)
-                    sender.runlogdate = fluent_logger.runlogdate
-                    print NFVBenchSummarizer(result, sender)
-                else:
-                    print NFVBenchSummarizer(result, None)
+                print NFVBenchSummarizer(result, fluent_logger)
             sys.exit(0)
 
         # show default config in text/yaml format
@@ -489,13 +541,21 @@ def main():
             # override default config options with start config at path parsed from CLI
             # check if it is an inline yaml/json config or a file name
             if os.path.isfile(opts.config):
-                LOG.info('Loading configuration file: ' + opts.config)
+                LOG.info('Loading configuration file: %s', opts.config)
                 config = config_load(opts.config, config, whitelist_keys)
                 config.name = os.path.basename(opts.config)
             else:
-                LOG.info('Loading configuration string: ' + opts.config)
+                LOG.info('Loading configuration string: %s', opts.config)
                 config = config_loads(opts.config, config, whitelist_keys)
 
+        # setup the fluent logger as soon as possible right after the config plugin is called,
+        # if there is any logging or result tag is set then initialize the fluent logger
+        for fluentd in config.fluentd:
+            if fluentd.logging_tag or fluentd.result_tag:
+                fluent_logger = FluentLogHandler(config.fluentd)
+                LOG.addHandler(fluent_logger)
+                break
+
         # traffic profile override options
         override_custom_traffic(config, opts.frame_sizes, opts.unidir)
 
@@ -505,34 +565,71 @@ def main():
             config.sriov = True
         if opts.log_file:
             config.log_file = opts.log_file
-
-        # show running config in json format
-        if opts.show_config:
-            print json.dumps(config, sort_keys=True, indent=4)
-            sys.exit(0)
+        if opts.service_chain:
+            config.service_chain = opts.service_chain
+        if opts.service_chain_count:
+            config.service_chain_count = opts.service_chain_count
+        if opts.no_vswitch_access:
+            config.no_vswitch_access = opts.no_vswitch_access
+        if opts.no_int_config:
+            config.no_int_config = opts.no_int_config
+
+        if opts.l2_loopback:
+            if config.service_chain != ChainType.EXT:
+                LOG.info('Changing service chain type to EXT')
+                config.service_chain = ChainType.EXT
+            if not config.no_arp:
+                LOG.info('Disabling ARP')
+                config.no_arp = True
+            config.vlans = [int(opts.l2_loopback), int(opts.l2_loopback)]
+            LOG.info('Running L2 loopback: using EXT chain and no ARP')
+
+        if opts.use_sriov_middle_net:
+            if (not config.sriov) or (config.service_chain != ChainType.PVVP):
+                raise Exception("--use-sriov-middle-net is only valid for PVVP with SRIOV")
+            config.use_sriov_middle_net = True
 
         if config.sriov and config.service_chain != ChainType.EXT:
             # if sriov is requested (does not apply to ext chains)
             # make sure the physnet names are specified
             check_physnet("left", config.internal_networks.left)
             check_physnet("right", config.internal_networks.right)
-            if config.service_chain == ChainType.PVVP:
+            if config.service_chain == ChainType.PVVP and config.use_sriov_middle_net:
                 check_physnet("middle", config.internal_networks.middle)
 
+        # show running config in json format
+        if opts.show_config:
+            print json.dumps(config, sort_keys=True, indent=4)
+            sys.exit(0)
+
+        # check that an empty openrc file (no OpenStack) is only allowed
+        # with EXT chain
+        if not config.openrc_file:
+            if config.service_chain == ChainType.EXT:
+                LOG.info('EXT chain with OpenStack mode disabled')
+            else:
+                raise Exception("openrc_file is empty in the configuration and is required")
+
         # update the config in the config plugin as it might have changed
         # in a copy of the dict (config plugin still holds the original dict)
         config_plugin.set_config(config)
 
+        if opts.status or opts.cleanup or opts.force_cleanup:
+            status_cleanup(config, opts.cleanup, opts.force_cleanup)
+
         # add file log if requested
         if config.log_file:
             log.add_file_logger(config.log_file)
 
-        nfvbench = NFVBench(config, openstack_spec, config_plugin, factory)
+        openstack_spec = config_plugin.get_openstack_spec() if config.openrc_file \
+            else None
+
+        nfvbench_instance = NFVBench(config, openstack_spec, config_plugin, factory)
 
         if opts.server:
             if os.path.isdir(opts.server):
-                server = WebSocketIoServer(opts.server, nfvbench, fluent_logger)
-                nfvbench.set_notifier(server)
+                server = WebSocketIoServer(opts.server, nfvbench_instance, fluent_logger)
+                nfvbench_instance.set_notifier(server)
                 try:
                     port = int(opts.port)
                 except ValueError:
@@ -554,13 +651,13 @@ def main():
                 opts = {k: v for k, v in vars(opts).iteritems() if v is not None}
                 # get CLI args
                 params = ' '.join(str(e) for e in sys.argv[1:])
-                result = nfvbench.run(opts, params)
+                result = nfvbench_instance.run(opts, params)
                 if 'error_message' in result:
                     raise Exception(result['error_message'])
 
                 if 'result' in result and result['status']:
-                    nfvbench.save(result['result'])
-                    nfvbench.prepare_summary(result['result'])
+                    nfvbench_instance.save(result['result'])
+                    nfvbench_instance.prepare_summary(result['result'])
     except Exception as exc:
         run_summary_required = True
         LOG.error({