+ def set_flow_metric(self, metric_dict, flow_stat_dict):\r
+ # vnf tx is the datacenter switch rx and vice-versa\r
+ metric_key = metric_dict['metric_key']\r
+ switch_dpid = metric_dict['switch_dpid']\r
+ vnf_name = metric_dict['vnf_name']\r
+ vnf_interface = metric_dict['vnf_interface']\r
+ previous_measurement = metric_dict['previous_measurement']\r
+ previous_monitor_time = metric_dict['previous_monitor_time']\r
+ cookie = metric_dict['cookie']\r
+\r
+ counter = 0\r
+ for flow_stat in flow_stat_dict[str(switch_dpid)]:\r
+ if 'bytes' in metric_key:\r
+ counter += flow_stat['byte_count']\r
+ elif 'packet' in metric_key:\r
+ counter += flow_stat['packet_count']\r
+\r
+ # flow_uptime disabled for now (can give error)\r
+ #flow_stat = flow_stat_dict[str(switch_dpid)][0]\r
+ #flow_uptime = flow_stat['duration_sec'] + flow_stat['duration_nsec'] * 10 ** (-9)\r
+\r
+ self.prom_metrics[metric_dict['metric_key']]. \\r
+ labels(vnf_name=vnf_name, vnf_interface=vnf_interface, flow_id=cookie). \\r
+ set(counter)\r
+\r
+ def start_Prometheus(self, port=9090):\r
+ # prometheus.yml configuration file is located in the same directory as this file\r
+ cmd = ["docker",\r
+ "run",\r
+ "--rm",\r
+ "-p", "{0}:9090".format(port),\r
+ "-v", "{0}/prometheus.yml:/etc/prometheus/prometheus.yml".format(os.path.dirname(os.path.abspath(__file__))),\r
+ "-v", "{0}/profile.rules:/etc/prometheus/profile.rules".format(os.path.dirname(os.path.abspath(__file__))),\r
+ "--name", "prometheus",\r
+ "prom/prometheus"\r
+ ]\r
+ logging.info('Start Prometheus container {0}'.format(cmd))\r
+ return Popen(cmd)\r
+\r
+ def start_PushGateway(self, port=PUSHGATEWAY_PORT):\r
+ cmd = ["docker",\r
+ "run",\r
+ "-d",\r
+ "-p", "{0}:9091".format(port),\r
+ "--name", "pushgateway",\r
+ "--label", 'com.containernet=""',\r
+ "prom/pushgateway"\r
+ ]\r
+\r
+ logging.info('Start Prometheus Push Gateway container {0}'.format(cmd))\r
+ return Popen(cmd)\r
+\r
+ def start_cAdvisor(self, port=CADVISOR_PORT):\r
+ cmd = ["docker",\r
+ "run",\r
+ "--rm",\r
+ "--volume=/:/rootfs:ro",\r
+ "--volume=/var/run:/var/run:rw",\r
+ "--volume=/sys:/sys:ro",\r
+ "--volume=/var/lib/docker/:/var/lib/docker:ro",\r
+ "--publish={0}:8080".format(port),\r
+ "--name=cadvisor",\r
+ "--label",'com.containernet=""',\r
+ "google/cadvisor:latest"\r
+ ]\r
+ logging.info('Start cAdvisor container {0}'.format(cmd))\r
+ return Popen(cmd)\r
+\r
+ def stop(self):\r
+ # stop the monitoring thread\r
+ self.start_monitoring = False\r
+ self.monitor_thread.join()\r
+ self.monitor_flow_thread.join()\r
+\r
+ # these containers are used for monitoring but are started now outside of son-emu\r
+\r
+ if self.pushgateway_process is not None:\r
+ logging.info('stopping pushgateway container')\r
+ self._stop_container('pushgateway')\r
+\r
+ if self.cadvisor_process is not None:\r
+ logging.info('stopping cadvisor container')\r
+ self._stop_container('cadvisor')\r
+\r
+ def switch_tx_rx(self,metric=''):\r
+ # when monitoring vnfs, the tx of the datacenter switch is actually the rx of the vnf\r
+ # so we need to change the metric name to be consistent with the vnf rx or tx\r
+ if 'tx' in metric:\r
+ metric = metric.replace('tx','rx')\r
+ elif 'rx' in metric:\r
+ metric = metric.replace('rx','tx')\r
+\r
+ return metric\r
+\r
+ def _stop_container(self, name):\r
+\r
+ container = self.dockercli.containers.get(name)\r
+ container.remove(force=True)\r
+\r
+ def update_skewmon(self, vnf_name, resource_name, action):\r
+\r
+ ret = ''\r
+\r
+ config_file_path = '/tmp/skewmon.cfg'\r
+ configfile = open(config_file_path, 'a+')\r
+ try:\r
+ config = json.load(configfile)\r
+ except:\r
+ #not a valid json file or empty\r
+ config = {}\r
+\r
+ #initialize config file\r
+ if len(self.skewmon_metrics) == 0:\r
+ config = {}\r
+ json.dump(config, configfile)\r
+ configfile.close()\r
+\r
+ docker_name = 'mn.' + vnf_name\r
+ vnf_container = self.dockercli.containers.get(docker_name)\r
+ key = resource_name + '_' + vnf_container.short_id\r
+ vnf_id = vnf_container.id\r
+\r
+ if action == 'start':\r
+ # add a new vnf to monitor\r
+ config[key] = dict(VNF_NAME=vnf_name,\r
+ VNF_ID=vnf_id,\r
+ VNF_METRIC=resource_name)\r
+ ret = 'adding to skewness monitor: {0} {1} '.format(vnf_name, resource_name)\r
+ logging.info(ret)\r
+ elif action == 'stop':\r
+ # remove vnf to monitor\r
+ config.pop(key)\r
+ ret = 'removing from skewness monitor: {0} {1} '.format(vnf_name, resource_name)\r
+ logging.info(ret)\r
+\r
+ self.skewmon_metrics = config\r
+ configfile = open(config_file_path, 'w')\r
+ json.dump(config, configfile)\r
+ configfile.close()\r
+\r
+ try:\r
+ skewmon_container = self.dockercli.containers.get('skewmon')\r
+\r
+ # remove container if config is empty\r
+ if len(config) == 0:\r
+ ret += 'stopping skewness monitor'\r
+ logging.info('stopping skewness monitor')\r
+ skewmon_container.remove(force=True)\r
+\r
+ except docker.errors.NotFound:\r
+ # start container if not running\r
+ ret += 'starting skewness monitor'\r
+ logging.info('starting skewness monitor')\r
+ volumes = {'/sys/fs/cgroup':{'bind':'/sys/fs/cgroup', 'mode':'ro'},\r
+ '/tmp/skewmon.cfg':{'bind':'/config.txt', 'mode':'ro'}}\r
+ self.dockercli.containers.run('skewmon',\r
+ detach=True,\r
+ volumes=volumes,\r
+ labels=['com.containernet'],\r
+ name='skewmon'\r
+ )\r
+ return ret\r
+\r
+\r
+\r
+\r