"""\r
\r
import logging\r
+import sys\r
from mininet.node import OVSSwitch\r
import ast\r
import time\r
from prometheus_client import start_http_server, Summary, Histogram, Gauge, Counter, REGISTRY, CollectorRegistry, \\r
pushadd_to_gateway, push_to_gateway, delete_from_gateway\r
import threading\r
-from subprocess import Popen\r
+from subprocess import Popen, check_call\r
import os\r
-\r
+import docker\r
+import json\r
\r
logging.basicConfig(level=logging.INFO)\r
\r
class to read openflow stats from the Ryu controller of the DCNetwork\r
"""\r
\r
+PUSHGATEWAY_PORT = 9091\r
+# we cannot use port 8080 because ryu-ofrest api is already using that one\r
+CADVISOR_PORT = 8081\r
+\r
+COOKIE_MASK = 0xffffffff\r
+\r
class DCNetworkMonitor():\r
def __init__(self, net):\r
self.net = net\r
+ self.dockercli = docker.from_env()\r
\r
- # TODO: these global variables should be part of a config file?\r
- '''\r
- # prometheus is started outside of son-emu\r
- prometheus_ip = '127.0.0.1'\r
- prometheus_port = '9090'\r
- self.prometheus_REST_api = 'http://{0}:{1}'.format(prometheus_ip, prometheus_port)\r
- '''\r
- # helper variables to calculate the metrics\r
- # pushgateway is started outside of son-emu and son-emu is started with net=host\r
- # so localhost:9091 works\r
- self.pushgateway = 'localhost:9091'\r
- # when sdk is started with docker-compose, we could use\r
- # self.pushgateway = 'pushgateway:9091'\r
+ # pushgateway address\r
+ self.pushgateway = 'localhost:{0}'.format(PUSHGATEWAY_PORT)\r
\r
# supported Prometheus metrics\r
self.registry = CollectorRegistry()\r
self.monitor_flow_lock = threading.Lock()\r
self.network_metrics = []\r
self.flow_metrics = []\r
+ self.skewmon_metrics = {}\r
\r
# start monitoring thread\r
self.start_monitoring = True\r
self.monitor_flow_thread.start()\r
\r
# helper tools\r
- # cAdvisor, Prometheus pushgateway and DB are started as external container, outside of son-emu\r
+ # cAdvisor, Prometheus pushgateway are started as external container, to gather monitoring metric in son-emu\r
+ self.pushgateway_process = self.start_PushGateway()\r
+ self.cadvisor_process = self.start_cAdvisor()\r
\r
\r
# first set some parameters, before measurement can start\r
\r
self.flow_metrics.remove(flow_dict)\r
\r
- for collector in self.registry._collectors:\r
- if (vnf_name, vnf_interface, cookie) in collector._metrics:\r
- collector.remove(vnf_name, vnf_interface, cookie)\r
+ # set metric to NaN\r
+ self.prom_metrics[flow_dict['metric_key']]. \\r
+ labels(vnf_name=vnf_name, vnf_interface=vnf_interface, flow_id=cookie). \\r
+ set(float('nan'))\r
\r
delete_from_gateway(self.pushgateway, job='sonemu-SDNcontroller')\r
\r
network_metric['metric_key'] = metric\r
\r
self.monitor_lock.acquire()\r
-\r
self.network_metrics.append(network_metric)\r
self.monitor_lock.release()\r
\r
\r
self.network_metrics.remove(metric_dict)\r
\r
- #this removes the complete metric, all labels...\r
- #REGISTRY.unregister(self.prom_metrics[metric_dict['metric_key']])\r
- #self.registry.unregister(self.prom_metrics[metric_dict['metric_key']])\r
-\r
- for collector in self.registry._collectors :\r
-\r
- """\r
- INFO:root:name:sonemu_rx_count_packets\r
- labels:('vnf_name', 'vnf_interface')\r
- metrics:{(u'tsrc', u'output'): < prometheus_client.core.Gauge\r
- object\r
- at\r
- 0x7f353447fd10 >}\r
- """\r
- logging.info('{0}'.format(collector._metrics.values()))\r
-\r
- if (vnf_name, vnf_interface, 'None') in collector._metrics:\r
- logging.info('2 name:{0} labels:{1} metrics:{2}'.format(collector._name, collector._labelnames,\r
- collector._metrics))\r
- collector.remove(vnf_name, vnf_interface, 'None')\r
-\r
# set values to NaN, prometheus api currently does not support removal of metrics\r
#self.prom_metrics[metric_dict['metric_key']].labels(vnf_name, vnf_interface).set(float('nan'))\r
+ self.prom_metrics[metric_dict['metric_key']]. \\r
+ labels(vnf_name=vnf_name, vnf_interface=vnf_interface, flow_id=None). \\r
+ set(float('nan'))\r
\r
# this removes the complete metric, all labels...\r
# 1 single monitor job for all metrics of the SDN controller\r
return 'Error stopping monitoring metric: {0} on {1}:{2}'.format(metric, vnf_name, vnf_interface)\r
\r
\r
-\r
-\r
-\r
# get all metrics defined in the list and export it to Prometheus\r
def get_flow_metrics(self):\r
while self.start_monitoring:\r
data = {}\r
\r
data['cookie'] = flow_dict['cookie']\r
- data['cookie_mask'] = flow_dict['cookie']\r
+ data['cookie_mask'] = COOKIE_MASK\r
\r
if 'tx' in flow_dict['metric_key']:\r
data['match'] = {'in_port':flow_dict['mon_port']}\r
\r
# query Ryu\r
ret = self.net.ryu_REST('stats/flow', dpid=flow_dict['switch_dpid'], data=data)\r
- flow_stat_dict = ast.literal_eval(ret)\r
+ if isinstance(ret, dict):\r
+ flow_stat_dict = ret\r
+ elif isinstance(ret, basestring):\r
+ flow_stat_dict = ast.literal_eval(ret.rstrip())\r
+ else:\r
+ flow_stat_dict = None\r
+\r
logging.debug('received flow stat:{0} '.format(flow_stat_dict))\r
\r
self.set_flow_metric(flow_dict, flow_stat_dict)\r
\r
+\r
+ try:\r
+ if len(self.flow_metrics) > 0:\r
+ pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry)\r
+ except Exception, e:\r
+ logging.warning("Pushgateway not reachable: {0} {1}".format(Exception, e))\r
+\r
self.monitor_flow_lock.release()\r
time.sleep(1)\r
\r
\r
# query Ryu\r
ret = self.net.ryu_REST('stats/port', dpid=dpid)\r
- port_stat_dict = ast.literal_eval(ret)\r
+ if isinstance(ret, dict):\r
+ port_stat_dict = ret\r
+ elif isinstance(ret, basestring):\r
+ port_stat_dict = ast.literal_eval(ret.rstrip())\r
+ else:\r
+ port_stat_dict = None\r
\r
metric_list = [metric_dict for metric_dict in self.network_metrics\r
if int(metric_dict['switch_dpid'])==int(dpid)]\r
for metric_dict in metric_list:\r
self.set_network_metric(metric_dict, port_stat_dict)\r
\r
+ try:\r
+ if len(self.network_metrics) > 0:\r
+ pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry)\r
+ except Exception, e:\r
+ logging.warning("Pushgateway not reachable: {0} {1}".format(Exception, e))\r
+\r
self.monitor_lock.release()\r
time.sleep(1)\r
\r
\r
# set prometheus metric\r
self.prom_metrics[metric_dict['metric_key']].\\r
- labels({'vnf_name': vnf_name, 'vnf_interface': vnf_interface, 'flow_id': None}).\\r
+ labels(vnf_name=vnf_name, vnf_interface=vnf_interface, flow_id=None).\\r
set(this_measurement)\r
\r
- # 1 single monitor job for all metrics of the SDN controller\r
- pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry)\r
-\r
# also the rate is calculated here, but not used for now\r
# (rate can be easily queried from prometheus also)\r
if previous_monitor_time <= 0 or previous_monitor_time >= port_uptime:\r
metric_dict['previous_measurement'] = int(port_stat[metric_key])\r
metric_dict['previous_monitor_time'] = port_uptime\r
# do first measurement\r
- time.sleep(1)\r
- self.monitor_lock.release()\r
-\r
- metric_rate = self.get_network_metrics()\r
- return metric_rate\r
+ #time.sleep(1)\r
+ #self.monitor_lock.release()\r
+ # rate cannot be calculated yet (need a first measurement)\r
+ metric_rate = None\r
\r
else:\r
time_delta = (port_uptime - metric_dict['previous_monitor_time'])\r
\r
metric_dict['previous_measurement'] = this_measurement\r
metric_dict['previous_monitor_time'] = port_uptime\r
- return metric_rate\r
+ return\r
\r
logging.exception('metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface))\r
+ logging.exception('monport:{0}, dpid:{1}'.format(mon_port, switch_dpid))\r
+ logging.exception('port dict:{0}'.format(port_stat_dict))\r
return 'metric {0} not found on {1}:{2}'.format(metric_key, vnf_name, vnf_interface)\r
\r
def set_flow_metric(self, metric_dict, flow_stat_dict):\r
previous_monitor_time = metric_dict['previous_monitor_time']\r
cookie = metric_dict['cookie']\r
\r
- # TODO aggregate all found flow stats\r
- #flow_stat = flow_stat_dict[str(switch_dpid)][0]\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
counter = 0\r
for flow_stat in flow_stat_dict[str(switch_dpid)]:\r
if 'bytes' in metric_key:\r
elif 'packet' in metric_key:\r
counter += flow_stat['packet_count']\r
\r
- flow_stat = flow_stat_dict[str(switch_dpid)][0]\r
- flow_uptime = flow_stat['duration_sec'] + flow_stat['duration_nsec'] * 10 ** (-9)\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
+ labels(vnf_name=vnf_name, vnf_interface=vnf_interface, flow_id=cookie). \\r
set(counter)\r
- pushadd_to_gateway(self.pushgateway, job='sonemu-SDNcontroller', registry=self.registry)\r
-\r
\r
def start_Prometheus(self, port=9090):\r
# prometheus.yml configuration file is located in the same directory as this file\r
logging.info('Start Prometheus container {0}'.format(cmd))\r
return Popen(cmd)\r
\r
- def start_PushGateway(self, port=9091):\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=8090):\r
+ def start_cAdvisor(self, port=CADVISOR_PORT):\r
cmd = ["docker",\r
"run",\r
"--rm",\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
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.prometheus_process is not None:\r
- logging.info('stopping prometheus container')\r
- self.prometheus_process.terminate()\r
- self.prometheus_process.kill()\r
- self._stop_container('prometheus')\r
\r
if self.pushgateway_process is not None:\r
logging.info('stopping pushgateway container')\r
- self.pushgateway_process.terminate()\r
- self.pushgateway_process.kill()\r
self._stop_container('pushgateway')\r
\r
if self.cadvisor_process is not None:\r
logging.info('stopping cadvisor container')\r
- self.cadvisor_process.terminate()\r
- self.cadvisor_process.kill()\r
self._stop_container('cadvisor')\r
- '''\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
return metric\r
\r
def _stop_container(self, name):\r
- cmd = ["docker",\r
- "stop",\r
- name]\r
- Popen(cmd).wait()\r
\r
- cmd = ["docker",\r
- "rm",\r
- name]\r
- Popen(cmd).wait()\r
+ #container = self.dockercli.containers.get(name)\r
+ #container.stop()\r
+ #container.remove(force=True)\r
+\r
+ # the only robust way to stop these containers is via Popen, it seems\r
+ time.sleep(1)\r
+ cmd = ['docker', 'rm', '-f', name]\r
+ Popen(cmd)\r
+\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
+ # Wait a while for containers to be completely started\r
+ started = False\r
+ wait_time = 0\r
+ while not started:\r
+ list1 = self.dockercli.containers.list(filters={'status': 'running', 'name': 'prometheus'})\r
+ if len(list1) >= 1:\r
+ time.sleep(1)\r
+ started = True\r
+ if wait_time > 5:\r
+ return 'skewmon not started'\r
+ time.sleep(1)\r
+ wait_time += 1\r
+ return ret\r
+\r
+\r
+\r
+\r
\r
projects / osm / vim-emu.git / blobdiff