- name: install requests
pip: name=requests state=latest
- - name: install docker-py
- pip: name=docker-py version=1.7.1
+ - name: install docker
+ pip: name=docker version=2.0.2
- name: install prometheus_client
pip: name=prometheus_client state=latest
--- /dev/null
+FROM python:3-onbuild
+
+#periods in milliseconds
+ENV SAMPLE_PERIOD 10
+ENV TOTAL_PERIOD 2000
+
+ADD requirements.txt .
+ADD skewmon.py .
+
+CMD [ "python", "./skewmon.py" ]
\ No newline at end of file
--- /dev/null
+prometheus_client
\ No newline at end of file
--- /dev/null
+"""
+Copyright (c) 2015 SONATA-NFV and Paderborn University
+ALL RIGHTS RESERVED.
+
+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.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+
+"""
+Monitor the skewness of the resource usage probability distribution
+and export to a Prometheus Push Gateway
+(c) 2017 by Steven Van Rossem <steven.vanrossem@intec.ugent.be>
+"""
+
+#!/usr/bin/python3
+
+from time import sleep, time, perf_counter
+import math
+from prometheus_client import start_http_server, Summary, Histogram, Gauge, Counter, REGISTRY, CollectorRegistry, \
+ pushadd_to_gateway, push_to_gateway, delete_from_gateway
+import threading
+import os
+import json
+
+import logging
+LOG = logging.getLogger('skewmon')
+LOG.setLevel(level=logging.DEBUG)
+LOG.addHandler(logging.StreamHandler())
+
+
+# put env vars in Dockerfile
+PUSHGATEWAY_IP = '172.17.0.1'
+PUSHGATEWAY_PORT = 9091
+PUSHGATEWAY_ADDR = ':'.join([PUSHGATEWAY_IP, str(PUSHGATEWAY_PORT)])
+
+
+#general settings (ms)
+SAMPLE_PERIOD = int(os.environ['SAMPLE_PERIOD'])
+TOTAL_PERIOD = int(os.environ['TOTAL_PERIOD'])
+
+# define global variables
+registry = CollectorRegistry()
+exported_metric = Gauge('skewness', 'Skewness of docker vnf resource usage',
+ ['vnf_id', 'vnf_name', 'vnf_metric'], registry=registry)
+
+# find the VNFs to monitor
+# {metric_shortId: {VNF_NAME:<>,VNF_ID:<>,VNF_METRIC:<>}}
+
+def get_vnfs_to_monitor(config):
+ for key in config:
+ vnf_name = config[key].get('VNF_NAME')
+ vnf_id = config[key].get('VNF_ID')
+ vnf_metric = config[key].get('VNF_METRIC')
+ yield (vnf_id, vnf_name, vnf_metric)
+
+# export metric to the Prometheus PushGateway
+def export_metrics(key=None):
+ try:
+ pushadd_to_gateway(PUSHGATEWAY_ADDR, job='sonemu-skewmon', registry=registry, grouping_key=key)
+ except Exception as e:
+ LOG.warning("Pushgateway not reachable: {0}".format(str(e)))
+
+class skewness_monitor():
+ def __init__(self, docker_id, docker_name, metric):
+ # Prometheus metric to export
+ self.prom_skewness = exported_metric
+ self.docker_id = docker_id
+ self.docker_name = docker_name
+ self.vnf_metric = metric
+
+ # https://www.datadoghq.com/blog/how-to-collect-docker-metrics/
+ self.cpu_proc_file = '/sys/fs/cgroup/cpuacct/docker/{0}/cpuacct.usage'.format(self.docker_id)
+ self.mem_proc_file = '/sys/fs/cgroup/memory/docker/{0}/memory.usage_in_bytes'.format(self.docker_id)
+ metric_dict = {'cpu': self.cpu_proc_file,
+ 'mem': self.mem_proc_file}
+
+ self.proc_file = metric_dict[metric]
+
+ self.fp = open(self.proc_file)
+
+ #monitoring thread
+ self.export_thread = None
+ self.monitor_stop = threading.Event()
+
+ # get statistics with certain frequency and export skewness for further analysis
+ def _calc_skewness(self):
+
+ cpu_count0 = 0
+ time0 = 0
+
+ #milliseconds
+ stat_delta = SAMPLE_PERIOD
+ sample_T = TOTAL_PERIOD
+
+ data = []
+ n = 0
+
+ moment1 = 0
+ moment2 = 0
+ moment3 = 0
+
+ fp = self.fp
+
+ #collect samples
+ for n in range(0,round(sample_T/stat_delta)):
+ # first measurement
+ if cpu_count0 <= 0 or time0 <= 0:
+ time0 = perf_counter()
+ cpu_count0 = int(fp.read().strip())
+ fp.seek(0)
+ sleep(stat_delta/1000)
+ continue
+
+
+ #perf_counter in seconds
+ time1 = perf_counter()
+
+ # cpu count in nanoseconds
+ cpu_count1 = int(fp.read().strip())
+ fp.seek(0)
+
+ cpu_delta = cpu_count1 - cpu_count0
+ cpu_count0 = cpu_count1
+
+ time_delta = time1 - time0
+ time0 = time1
+
+ #work in nanoseconds
+ metric = (cpu_delta / (time_delta * 1e9))
+
+ data.append(metric)
+
+ #running calculation of sample moments
+ moment1 += metric
+ temp = metric * metric
+ moment2 += temp
+ moment3 += temp * metric
+
+
+ sleep(stat_delta/1000)
+
+ # calc skewness
+ M1 = (1 / n) * moment1
+ M2 = ((1 / n) * moment2) - M1**2
+ M3 = ((1 / n) * moment3) - (3 * M1 * ((1 / n) * moment2)) + (2 * M1**3)
+
+ s2 = (math.sqrt(n*(n - 1))/(n - 2)) * (M3 / (M2)**1.5)
+
+ LOG.info("docker_name: {0} metric: {1}".format(self.docker_name, self.vnf_metric))
+ LOG.info("Nsamples: {0}".format(n))
+ LOG.info("skewness: {0:.2f}".format(s2))
+ LOG.info("\n")
+
+ return s2
+
+ def _export_skewness_loop(self, stop_event):
+ #loop until flag is set
+ while(not stop_event.is_set()):
+ try:
+ skewness = self._calc_skewness()
+ self.prom_skewness.labels(vnf_id=self.docker_id, vnf_name=self.docker_name, vnf_metric=self.vnf_metric)\
+ .set(skewness)
+ except ZeroDivisionError as e:
+ self.prom_skewness.labels(vnf_id=self.docker_id, vnf_name=self.docker_name, vnf_metric=self.vnf_metric) \
+ .set(float('nan'))
+ LOG.warning("{1}: Skewness cannot be calculated: {0}".format(str(e), self.docker_name))
+ except Exception as e:
+ LOG.warning("Skewness cannot be calculated, stop thread: {0}".format(str(e)))
+ self.monitor_stop.set()
+
+ # if while has ended, monitoring thread will stop
+ self.prom_skewness.labels(vnf_id=self.docker_id, vnf_name=self.docker_name, vnf_metric=self.vnf_metric) \
+ .set(float('nan'))
+
+ #start the monitoring thread
+ def start(self):
+ if self.export_thread is not None:
+ LOG.warning('monitor thread is already running for: {0}'.format(self.docker_name))
+ return
+
+ self.export_thread = threading.Thread(target=self._export_skewness_loop, args=(self.monitor_stop,))
+ self.export_thread.start()
+ LOG.info('started thread: {0}'.format(self.docker_name))
+
+ #stop the monitoring thread
+ def stop(self):
+ self.monitor_stop.set()
+
+
+if __name__ == '__main__':
+
+ #started_vnfs {vnf_id:object}
+ vnfs_monitored = {}
+
+ # endless loop
+ while True:
+ #check config.txt for docker ids/names
+ configfile = open('/config.txt', 'r')
+ config = json.load(configfile)
+ vnfs_to_monitor = list(get_vnfs_to_monitor(config))
+
+ #for each new docker id in ENV start thread to monitor skewness
+ for vnf_id, vnf_name, vnf_metric in vnfs_to_monitor:
+ key = '_'.join([vnf_metric, vnf_id])
+ if key not in vnfs_monitored:
+ try:
+ vnfs_monitored[key] = skewness_monitor(vnf_id, vnf_name, vnf_metric)
+ vnfs_monitored[key].start()
+ except Exception as e:
+ LOG.warning("Monitor cannot be started: {0}".format(str(e)))
+
+ #for each removed docker id ENV, stop export
+ for vnf_key in list(vnfs_monitored):
+ vnf_keys_to_monitor = ['_'.join([vnf_metric, vnf_id]) for vnf_id, vnf_name, vnf_metric in vnfs_to_monitor]
+ if vnf_key not in vnf_keys_to_monitor:
+ vnfs_monitored[vnf_key].stop()
+
+ vnf_name = vnfs_monitored[vnf_key].docker_name
+ vnf_metric, vnf_id = vnf_key.split('_')
+ LOG.info('stop monitored VNFs: {0}'.format(vnfs_monitored[vnf_key].docker_name))
+ del vnfs_monitored[vnf_key]
+
+ # remove metric with labels from registry
+ # (Push Gateway remembers last pushed value, so this is not so useful)
+ # collector = registry._names_to_collectors['skewness']
+ # if (vnf_id, vnf_name, vnf_metric) in collector._metrics:
+ # collector.remove(vnf_id, vnf_name, vnf_metric)
+ delete_from_gateway(PUSHGATEWAY_ADDR, job='sonemu-skewmon')
+
+
+ #push to Prometheus gateway
+ export_metrics()
+ LOG.info('monitored VNFs: {0}'.format([monitor.docker_name for key, monitor in vnfs_monitored.items()]))
+ # wait before checking again
+ sleep(TOTAL_PERIOD/1000)
\ No newline at end of file
'pytest',
'Flask',
'flask_restful',
- 'docker-py==1.7.1',
+ 'docker==2.0.2',
'requests',
'prometheus_client',
'urllib3'
"""
global dcs
- def put(self, dc_label, compute_name):
+ def put(self, dc_label, compute_name, resource=None, value=None):
+ # check if resource update
+ if resource and value:
+ c = self._update_resource(dc_label, compute_name, resource, value)
+ return c.getStatus(), 200
+ # deploy new container
# check if json data is a dict
data = request.json
if data is None:
logging.exception("API error.")
return ex.message, 500, CORS_HEADER
+ def _update_resource(self, dc_label, compute_name, resource, value):
+ #check if container exists
+ d = dcs.get(dc_label).net.getNodeByName(compute_name)
+ if resource == 'cpu':
+ cpu_period = int(dcs.get(dc_label).net.cpu_period)
+ cpu_quota = int(cpu_period * float(value))
+ #put default values back
+ if float(value) <= 0:
+ cpu_period = 100000
+ cpu_quota = -1
+ d.updateCpuLimit(cpu_period=cpu_period, cpu_quota=cpu_quota)
+ return d
+
+
def get(self, dc_label, compute_name):
logging.debug("API CALL: compute status")
"""
global net
- def put(self, vnf_name, vnf_interface=None, metric='tx_packets'):
+ def put(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=None):
logging.debug("REST CALL: start monitor VNF interface")
try:
- c = net.monitor_agent.setup_metric(vnf_name, vnf_interface, metric)
+ if cookie:
+ c = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie)
+ else:
+ c = net.monitor_agent.setup_metric(vnf_name, vnf_interface, metric)
# return monitor message response
return str(c), 200, CORS_HEADER
except Exception as ex:
logging.exception("API error.")
return ex.message, 500, CORS_HEADER
- def delete(self, vnf_name, vnf_interface=None, metric='tx_packets'):
+ def delete(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=None):
logging.debug("REST CALL: stop monitor VNF interface")
try:
- c = net.monitor_agent.stop_metric(vnf_name, vnf_interface, metric)
+ if cookie:
+ c = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie)
+ else:
+ c = net.monitor_agent.stop_metric(vnf_name, vnf_interface, metric)
# return monitor message response
return str(c), 200, CORS_HEADER
except Exception as ex:
except Exception as ex:
logging.exception("API error.")
return ex.message, 500, CORS_HEADER
+
+class MonitorLinkAction(Resource):
+ """
+ Add or remove flow monitoring on chains between VNFs.
+ These chain links are implemented as flow entries in the networks' SDN switches.
+ The monitoring is an extra flow entry on top of the existing chain, with a specific match. (preserving the chaining)
+ The counters of this new monitoring flow are exported
+ :param vnf_src_name: VNF name of the source of the link
+ :param vnf_dst_name: VNF name of the destination of the link
+ :param vnf_src_interface: VNF interface name of the source of the link
+ :param vnf_dst_interface: VNF interface name of the destination of the link
+ :param weight: weight of the link (can be useful for routing calculations)
+ :param match: OpenFlow match format of the flow entry
+ :param bidirectional: boolean value if the link needs to be implemented from src to dst and back
+ :param cookie: cookie value, identifier of the flow entry to be installed.
+ :param priority: integer indicating the priority of the flow entry
+ :param skip_vlan_tag: boolean to indicate whether a new vlan tag should be created for this chain
+ :param monitor: boolean to indicate whether a new vlan tag should be created for this chain
+ :param monitor_placement: 'tx'=place the monitoring flowrule at the beginning of the chain, 'rx'=place at the end of the chain
+ :param metric: tx_packet_rate, tx_byte_rate, rx_packet_rate, rx_byte_rate
+ :return: message string indicating if the chain action is succesful or not
+ """
+
+ # the global net is set from the topology file, and connected via connectDCNetwork function in rest_api_endpoint.py
+ global net
+
+ def put(self, vnf_src_name, vnf_dst_name):
+ logging.debug("REST CALL: monitor link flow add")
+
+ try:
+ command = 'add-flow'
+ return self._MonitorLinkAction(vnf_src_name, vnf_dst_name, command=command)
+ except Exception as ex:
+ logging.exception("API error.")
+ return ex.message, 500, CORS_HEADER
+
+ def delete(self, vnf_src_name, vnf_dst_name):
+ logging.debug("REST CALL: monitor link flow remove")
+
+ try:
+ command = 'del-flows'
+ return self._MonitorLinkAction(vnf_src_name, vnf_dst_name, command=command)
+ except Exception as ex:
+ logging.exception("API error.")
+ return ex.message, 500, CORS_HEADER
+
+ def _MonitorLinkAction(self, vnf_src_name, vnf_dst_name, command=None):
+ # call DCNetwork method, not really datacenter specific API for now...
+ # no check if vnfs are really connected to this datacenter...
+ try:
+ # check if json data is a dict
+ data = request.json
+ if data is None:
+ data = {}
+ elif type(data) is not dict:
+ data = json.loads(request.json)
+
+ vnf_src_interface = data.get("vnf_src_interface")
+ vnf_dst_interface = data.get("vnf_dst_interface")
+ weight = data.get("weight")
+ match = data.get("match")
+ bidirectional = data.get("bidirectional")
+ cookie = data.get("cookie")
+ priority = data.get("priority")
+ skip_vlan_tag = data.get("skip_vlan_tag")
+ monitor = data.get("monitor")
+ monitor_placement = data.get("monitor_placement")
+
+ #first install monitor flow
+ c1 = net.setChain(
+ vnf_src_name, vnf_dst_name,
+ vnf_src_interface=vnf_src_interface,
+ vnf_dst_interface=vnf_dst_interface,
+ cmd=command,
+ weight=weight,
+ match=match,
+ bidirectional=bidirectional,
+ cookie=cookie,
+ priority=priority,
+ skip_vlan_tag=skip_vlan_tag,
+ monitor=monitor,
+ monitor_placement=monitor_placement)
+
+ #then export monitor flow
+ metric = data.get("metric")
+ if 'rx' in monitor_placement:
+ vnf_name = vnf_dst_name
+ vnf_interface = vnf_dst_interface
+ elif 'tx' in monitor_placement:
+ vnf_name = vnf_src_name
+ vnf_interface = vnf_src_interface
+
+ c2 = 'command unknown'
+ if command == 'add-flow':
+ c2 = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie)
+ elif command == 'del-flows':
+ c2 = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie)
+
+ # return setChain response
+ return (str(c1) + " " + str(c2)), 200, CORS_HEADER
+ except Exception as ex:
+ logging.exception("API error.")
+ return ex.message, 500
+
+class MonitorSkewAction(Resource):
+ """
+ Monitor the counters of a VNF interface
+ :param vnf_name: name of the VNF to be monitored
+ :param resource: the resource to be monitored (cpu, mem, ...)
+ :return: message string indicating if the monitor action is succesful or not
+ """
+ global net
+
+ def put(self, vnf_name, resource_name='cpu'):
+ logging.debug("REST CALL: start monitor skewness")
+ try:
+ # configure skewmon
+ c = net.monitor_agent.update_skewmon(vnf_name, resource_name, action='start')
+
+ # return monitor message response
+ return str(c), 200
+ except Exception as ex:
+ logging.exception("API error.")
+ return ex.message, 500
+
+ def delete(self, vnf_name, resource_name='cpu'):
+ logging.debug("REST CALL: stop monitor skewness")
+ try:
+ # configure skewmon
+ c = net.monitor_agent.update_skewmon(vnf_name, resource_name, action='stop')
+
+ # return monitor message response
+ return str(c), 200, CORS_HEADER
+ except Exception as ex:
+ logging.exception("API error.")
+ return ex.message, 500, CORS_HEADER
+
import json
logging.basicConfig(level=logging.INFO)
-
CORS_HEADER = {'Access-Control-Allow-Origin': '*'}
+# the global net is set from the topology file, and connected via connectDCNetwork function in rest_api_endpoint.py
net = None
:param bidirectional: boolean value if the link needs to be implemented from src to dst and back
:param cookie: cookie value, identifier of the flow entry to be installed.
:param priority: integer indicating the priority of the flow entry
+ :param skip_vlan_tag: boolean to indicate whether a new vlan tag should be created for this chain
+ :param monitor: boolean to indicate whether a new vlan tag should be created for this chain
+ :param monitor_placement: 'tx'=place the monitoring flowrule at the beginning of the chain, 'rx'=place at the end of the chain
:return: message string indicating if the chain action is succesful or not
"""
bidirectional = data.get("bidirectional")
cookie = data.get("cookie")
priority = data.get("priority")
+ skip_vlan_tag = data.get("skip_vlan_tag")
+ monitor = data.get("monitor")
+ monitor_placement = data.get("monitor_placement")
+
c = net.setChain(
vnf_src_name, vnf_dst_name,
vnf_src_interface=vnf_src_interface,
match=match,
bidirectional=bidirectional,
cookie=cookie,
- priority=priority)
+ priority=priority,
+ skip_vlan_tag=skip_vlan_tag,
+ monitor=monitor,
+ monitor_placement=monitor_placement)
# return setChain response
return str(c), 200, CORS_HEADER
except Exception as ex:
from network import NetworkAction
import monitor
-from monitor import MonitorInterfaceAction, MonitorFlowAction
+from monitor import MonitorInterfaceAction, MonitorFlowAction, MonitorLinkAction, MonitorSkewAction
logging.basicConfig(level=logging.INFO)
# setup endpoints
- self.api.add_resource(Compute, "/restapi/compute/<dc_label>/<compute_name>")
+ # compute related actions (start/stop VNFs, get info)
+ self.api.add_resource(Compute,
+ "/restapi/compute/<dc_label>/<compute_name>",
+ "/restapi/compute/<dc_label>/<compute_name>/<resource>/<value>")
self.api.add_resource(ComputeList,
"/restapi/compute",
"/restapi/compute/<dc_label>")
self.api.add_resource(DatacenterStatus, "/restapi/datacenter/<dc_label>")
self.api.add_resource(DatacenterList, "/restapi/datacenter")
- self.api.add_resource(NetworkAction, "/restapi/network/<vnf_src_name>/<vnf_dst_name>", )
+ # network related actions (setup chaining between VNFs)
+ self.api.add_resource(NetworkAction,
+ "/restapi/network/<vnf_src_name>/<vnf_dst_name>")
+
+
+ # monitoring related actions
+ # export a network interface traffic rate counter
self.api.add_resource(MonitorInterfaceAction,
- "/restapi/monitor/<vnf_name>/<metric>",
- "/restapi/monitor/<vnf_name>/<vnf_interface>/<metric>")
+ "/restapi/monitor/interface/<vnf_name>/<metric>",
+ "/restapi/monitor/interface/<vnf_name>/<vnf_interface>/<metric>",
+ "/restapi/monitor/interface/<vnf_name>/<vnf_interface>/<metric>/<cookie>")
+ # export flow traffic counter, of a manually pre-installed flow entry, specified by its cookie
self.api.add_resource(MonitorFlowAction,
- "/restapi/flowmon/<vnf_name>/<metric>/<cookie>",
- "/restapi/flowmon/<vnf_name>/<vnf_interface>/<metric>/<cookie>")
+ "/restapi/monitor/flow/<vnf_name>/<metric>/<cookie>",
+ "/restapi/monitor/flow/<vnf_name>/<vnf_interface>/<metric>/<cookie>")
+ # install monitoring of a specific flow on a pre-existing link in the service.
+ # the traffic counters of the newly installed monitor flow are exported
+ self.api.add_resource(MonitorLinkAction,
+ "/restapi/monitor/link/<vnf_src_name>/<vnf_dst_name>")
+ # install skewness monitor of resource usage disribution
+ # the skewness metric is exported
+ self.api.add_resource(MonitorSkewAction,
+ "/restapi/monitor/skewness/<vnf_name>/<resource_name>")
logging.debug("Created API endpoint %s(%s:%d)" % (self.__class__.__name__, self.ip, self.port))
import zipfile
import yaml
import threading
-from docker import Client as DockerClient
+from docker import DockerClient, APIClient
from flask import Flask, request
import flask_restful as fr
from collections import defaultdict
import pkg_resources
+from subprocess import Popen
logging.basicConfig()
LOG = logging.getLogger("sonata-dummy-gatekeeper")
def __init__(self):
self.services = dict()
self.dcs = dict()
+ self.net = None
self.vnf_counter = 0 # used to generate short names for VNFs (Mininet limitation)
LOG.info("Create SONATA dummy gatekeeper.")
eline_fwd_links = [l for l in vlinks if (l["id"] in fwd_links) and (l["connectivity_type"] == "E-Line")]
elan_fwd_links = [l for l in vlinks if (l["id"] in fwd_links) and (l["connectivity_type"] == "E-LAN")]
+ GK.net.deployed_elines.extend(eline_fwd_links)
+ GK.net.deployed_elans.extend(elan_fwd_links)
+
# 4a. deploy E-Line links
# cookie is used as identifier for the flowrules installed by the dummygatekeeper
# eg. different services get a unique cookie for their flowrules
# 4b. deploy E-LAN links
base = 10
for link in elan_fwd_links:
+
+ elan_vnf_list=[]
+
# generate lan ip address
ip = 1
for intf in link["connection_points_reference"]:
if vnf_id in self.sap_identifiers:
src_docker_name = "{0}_{1}".format(vnf_id, intf_name)
vnf_id = src_docker_name
+ else:
+ src_docker_name = vnf_id
vnf_name = vnf_id2vnf_name[vnf_id]
LOG.debug(
"Setting up E-LAN link. %s(%s:%s) -> %s" % (
self._vnf_reconfigure_network(vnfi, intf_name, ip_address)
# increase for the next ip address on this E-LAN
ip += 1
+
+ # add this vnf and interface to the E-LAN for tagging
+ network = self.vnfds[vnf_name].get("dc").net # there should be a cleaner way to find the DCNetwork
+ elan_vnf_list.append({'name':src_docker_name,'interface':intf_name})
+
+
+ # install the VLAN tags for this E-LAN
+ network.setLAN(elan_vnf_list)
# increase the base ip address for the next E-LAN
base += 1
self.package_content_path,
make_relative_path(self.manifest.get("entry_service_template")))
self.nsd = load_yaml(nsd_path)
+ GK.net.deployed_nsds.append(self.nsd)
LOG.debug("Loaded NSD: %r" % self.nsd.get("name"))
def _load_vnfd(self):
dc = DockerClient()
for url in self.remote_docker_image_urls.itervalues():
if not FORCE_PULL: # only pull if not present (speedup for development)
- if len(dc.images(name=url)) > 0:
+ if len(dc.images.list(name=url)) > 0:
LOG.debug("Image %r present. Skipping pull." % url)
continue
LOG.info("Pulling image: %r" % url)
- dc.pull(url,
- insecure_registry=True)
+ # this seems to fail with latest docker api version 2.0.2
+ # dc.images.pull(url,
+ # insecure_registry=True)
+ #using docker cli instead
+ cmd = ["docker",
+ "pull",
+ url,
+ ]
+ Popen(cmd).wait()
+
+
+
def _check_docker_image_exists(self, image_name):
"""
:param image_name: name of the docker image
:return:
"""
- return len(DockerClient().images(image_name)) > 0
+ return len(DockerClient().images.list(name=image_name)) > 0
def _calculate_placement(self, algorithm):
"""
def start_rest_api(host, port, datacenters=dict()):
GK.dcs = datacenters
+ GK.net = get_dc_network()
# start the Flask server (not the best performance but ok for our use case)
app.run(host=host,
port=port,
r.append("%d.0.0.%d/%d" % (i, ip, subnet_size))
return r
+def get_dc_network():
+ """
+ retrieve the DCnetwork where this dummygatekeeper (GK) connects to.
+ Assume at least 1 datacenter is connected to this GK, and that all datacenters belong to the same DCNetwork
+ :return:
+ """
+ assert (len(GK.dcs) > 0)
+ return GK.dcs.values()[0].net
if __name__ == '__main__':
"""
import pprint
import argparse
import json
+from subprocess import Popen
pp = pprint.PrettyPrinter(indent=4)
if len(c) > 1:
name = c[0]
status = c[1]
- eth0ip = status.get("docker_network", "-")
+ #eth0ip = status.get("docker_network", "-")
+ netw_list = [netw_dict['intf_name'] for netw_dict in status.get("network")]
+ dc_if_list = [netw_dict['dc_portname'] for netw_dict in status.get("network")]
table.append([status.get("datacenter"),
name,
status.get("image"),
- eth0ip,
- status.get("state").get("Status")])
+ ','.join(netw_list),
+ ','.join(dc_if_list)])
+ #status.get("state").get("Status")]
headers = ["Datacenter",
"Container",
"Image",
- "docker0",
- "Status"]
+ "Interface list",
+ "Datacenter interfaces"]
print(tabulate(table, headers=headers, tablefmt="grid"))
def status(self, args):
pp.pprint(list)
+ def xterm(self, args):
+ vnf_names = args.get("vnf_names")
+ for vnf_name in vnf_names:
+ Popen(['xterm', '-xrm', 'XTerm.vt100.allowTitleOps: false', '-T', vnf_name,
+ '-e', "docker exec -it mn.{0} /bin/bash".format(vnf_name)])
parser = argparse.ArgumentParser(description="""son-emu compute
""", formatter_class=argparse.RawTextHelpFormatter)
parser.add_argument(
"command",
- choices=['start', 'stop', 'list', 'status'],
+ choices=['start', 'stop', 'list', 'status', 'xterm'],
help="Action to be executed.")
+parser.add_argument(
+ "vnf_names",
+ nargs='*',
+ help="vnf names to open an xterm for")
parser.add_argument(
"--datacenter", "-d", dest="datacenter",
help="Data center to which the command should be applied.")
vnf_name = self._parse_vnf_name(args.get("vnf_name"))
vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
- response = put("%s/restapi/monitor/%s/%s/%s" %
+ response = put("%s/restapi/monitor/interface/%s/%s/%s" %
(args.get("endpoint"),
vnf_name,
vnf_interface,
vnf_name = self._parse_vnf_name(args.get("vnf_name"))
vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
- response = delete("%s/restapi/monitor/%s/%s/%s" %
+ response = delete("%s/restapi/monitor/interface/%s/%s/%s" %
(args.get("endpoint"),
vnf_name,
vnf_interface,
vnf_name = self._parse_vnf_name(args.get("vnf_name"))
vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
- response = put("%s/restapi/monitor/%s/%s/%s/%s" %
+ response = put("%s/restapi/monitor/flow/%s/%s/%s/%s" %
(args.get("endpoint"),
vnf_name,
vnf_interface,
vnf_name = self._parse_vnf_name(args.get("vnf_name"))
vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
- response = delete("%s/restapi/monitor/%s/%s/%s/%s" %
+ response = delete("%s/restapi/monitor/flow/%s/%s/%s/%s" %
(args.get("endpoint"),
vnf_name,
vnf_interface,
import threading\r
from subprocess import Popen\r
import os\r
-\r
+import docker\r
+import json\r
\r
logging.basicConfig(level=logging.INFO)\r
\r
class DCNetworkMonitor():\r
def __init__(self, net):\r
self.net = net\r
+ self.dockercli = docker.from_env()\r
\r
# pushgateway address\r
self.pushgateway = 'localhost:{0}'.format(PUSHGATEWAY_PORT)\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
\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
\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
\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
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
#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
- try:\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
\r
def start_Prometheus(self, port=9090):\r
# prometheus.yml configuration file is located in the same directory as this file\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
+\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
def switch_tx_rx(self,metric=''):\r
\r
def _stop_container(self, name):\r
\r
- cmd = ["docker",\r
- "rm",\r
- "-f",\r
- name]\r
- Popen(cmd).wait()\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
\r
from subprocess import Popen
import re
import requests
+import os
from mininet.net import Containernet
from mininet.node import Controller, DefaultController, OVSSwitch, OVSKernelSwitch, Docker, RemoteController
LOG = logging.getLogger("dcemulator.net")
LOG.setLevel(logging.DEBUG)
+# default CPU period used for cpu percentage-based cfs values (microseconds)
+CPU_PERIOD = 1000000
+
class DCNetwork(Containernet):
"""
Wraps the original Mininet/Containernet class and provides
"""
def __init__(self, controller=RemoteController, monitor=False,
- enable_learning = True, # in case of RemoteController (Ryu), learning switch behavior can be turned off/on
+ enable_learning=False, # learning switch behavior of the default ovs switches icw Ryu controller can be turned off/on, needed for E-LAN functionality
dc_emulation_max_cpu=1.0, # fraction of overall CPU time for emulation
dc_emulation_max_mem=512, # emulation max mem in MB
**kwargs):
# members
self.dcs = {}
self.ryu_process = None
+ #list of deployed nsds.E_Lines and E_LANs (uploaded from the dummy gatekeeper)
+ self.deployed_nsds = []
+ self.deployed_elines = []
+ self.deployed_elans = []
+ self.installed_chains = []
+
# always cleanup environment before we start the emulator
self.killRyu()
Containernet.__init__(
self, switch=OVSKernelSwitch, controller=controller, **kwargs)
+ # default switch configuration
+ enable_ryu_learning = False
+ if enable_learning :
+ self.failMode = 'standalone'
+ enable_ryu_learning = True
+ else:
+ self.failMode = 'secure'
+
# Ryu management
if controller == RemoteController:
# start Ryu controller
- self.startRyu(learning_switch=enable_learning)
+ self.startRyu(learning_switch=enable_ryu_learning)
# add the specified controller
self.addController('c0', controller=controller)
# initialize resource model registrar
self.rm_registrar = ResourceModelRegistrar(
dc_emulation_max_cpu, dc_emulation_max_mem)
+ self.cpu_period = CPU_PERIOD
def addDatacenter(self, label, metadata={}, resource_log_path=None):
"""
"""
assert node1 is not None
assert node2 is not None
- LOG.debug("addLink: n1=%s n2=%s" % (str(node1), str(node2)))
+
# ensure type of node1
if isinstance( node1, basestring ):
if node1 in self.dcs:
attr_dict2.update(attr_dict)
self.DCNetwork_graph.add_edge(node2.name, node1.name, attr_dict=attr_dict2)
+ LOG.debug("addLink: n1={0} intf1={1} -- n2={2} intf2={3}".format(
+ str(node1),node1_port_name, str(node2), node2_port_name))
+
return link
def addDocker( self, label, **params ):
"""
Wrapper for addSwitch method to store switch also in graph.
"""
+
+ # add this switch to the global topology overview
if add_to_graph:
self.DCNetwork_graph.add_node(name)
- return Containernet.addSwitch(self, name, protocols='OpenFlow10,OpenFlow12,OpenFlow13', **params)
+
+ # set the learning switch behavior
+ if 'failMode' in params :
+ failMode = params['failMode']
+ else :
+ failMode = self.failMode
+
+ s = Containernet.addSwitch(self, name, protocols='OpenFlow10,OpenFlow12,OpenFlow13', failMode=failMode, **params)
+
+ # set flow entry that enables learning switch behavior (needed to enable E-LAN functionality)
+ #LOG.info('failmode {0}'.format(failMode))
+ #if failMode == 'standalone' :
+ # LOG.info('add NORMAL')
+ # s.dpctl('add-flow', 'actions=NORMAL')
+
+ return s
def getAllContainers(self):
"""
def CLI(self):
CLI(self)
+ def setLAN(self, vnf_list):
+ """
+ setup an E-LAN network by assigning the same VLAN tag to each DC interface of the VNFs in the E-LAN
+
+ :param vnf_list: names of the VNFs in this E-LAN [{name:,interface:},...]
+ :return:
+ """
+ src_sw = None
+ src_sw_inport_nr = 0
+ src_sw_inport_name = None
+
+ # get a vlan tag for this E-LAN
+ vlan = self.vlans.pop()
+
+ for vnf in vnf_list:
+ vnf_src_name = vnf['name']
+ vnf_src_interface = vnf['interface']
+
+ # check if port is specified (vnf:port)
+ if vnf_src_interface is None:
+ # take first interface by default
+ connected_sw = self.DCNetwork_graph.neighbors(vnf_src_name)[0]
+ link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
+ vnf_src_interface = link_dict[0]['src_port_id']
+
+ for connected_sw in self.DCNetwork_graph.neighbors(vnf_src_name):
+ link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
+ for link in link_dict:
+ if (link_dict[link]['src_port_id'] == vnf_src_interface or
+ link_dict[link]['src_port_name'] == vnf_src_interface): # Fix: we might also get interface names, e.g, from a son-emu-cli call
+ # found the right link and connected switch
+ src_sw = connected_sw
+ src_sw_inport_nr = link_dict[link]['dst_port_nr']
+ src_sw_inport_name = link_dict[link]['dst_port_name']
+ break
+
+ # set the tag on the dc switch interface
+ LOG.debug('set E-LAN: vnf name: {0} interface: {1} tag: {2}'.format(vnf_src_name, vnf_src_interface,vlan))
+ switch_node = self.getNodeByName(src_sw)
+ self._set_vlan_tag(switch_node, src_sw_inport_name, vlan)
+
+ def _addMonitorFlow(self, vnf_src_name, vnf_dst_name, vnf_src_interface=None, vnf_dst_interface=None,
+ tag=None, **kwargs):
+ """
+ Add a monitoring flow entry that adds a special flowentry/counter at the begin or end of a chain.
+ So this monitoring flowrule exists on top of a previously defined chain rule and uses the same vlan tag/routing.
+ :param vnf_src_name:
+ :param vnf_dst_name:
+ :param vnf_src_interface:
+ :param vnf_dst_interface:
+ :param tag: vlan tag to be used for this chain (same tag as existing chain)
+ :param monitor_placement: 'tx' or 'rx' indicating to place the extra flowentry resp. at the beginning or end of the chain
+ :return:
+ """
+
+ src_sw = None
+ src_sw_inport_nr = 0
+ src_sw_inport_name = None
+ dst_sw = None
+ dst_sw_outport_nr = 0
+ dst_sw_outport_name = None
+
+ LOG.debug("call AddMonitorFlow vnf_src_name=%r, vnf_src_interface=%r, vnf_dst_name=%r, vnf_dst_interface=%r",
+ vnf_src_name, vnf_src_interface, vnf_dst_name, vnf_dst_interface)
+
+ #check if port is specified (vnf:port)
+ if vnf_src_interface is None:
+ # take first interface by default
+ connected_sw = self.DCNetwork_graph.neighbors(vnf_src_name)[0]
+ link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
+ vnf_src_interface = link_dict[0]['src_port_id']
+
+ for connected_sw in self.DCNetwork_graph.neighbors(vnf_src_name):
+ link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
+ for link in link_dict:
+ if (link_dict[link]['src_port_id'] == vnf_src_interface or
+ link_dict[link]['src_port_name'] == vnf_src_interface): # Fix: we might also get interface names, e.g, from a son-emu-cli call
+ # found the right link and connected switch
+ src_sw = connected_sw
+ src_sw_inport_nr = link_dict[link]['dst_port_nr']
+ src_sw_inport_name = link_dict[link]['dst_port_name']
+ break
+
+ if vnf_dst_interface is None:
+ # take first interface by default
+ connected_sw = self.DCNetwork_graph.neighbors(vnf_dst_name)[0]
+ link_dict = self.DCNetwork_graph[connected_sw][vnf_dst_name]
+ vnf_dst_interface = link_dict[0]['dst_port_id']
+
+ vnf_dst_name = vnf_dst_name.split(':')[0]
+ for connected_sw in self.DCNetwork_graph.neighbors(vnf_dst_name):
+ link_dict = self.DCNetwork_graph[connected_sw][vnf_dst_name]
+ for link in link_dict:
+ if link_dict[link]['dst_port_id'] == vnf_dst_interface or \
+ link_dict[link]['dst_port_name'] == vnf_dst_interface: # Fix: we might also get interface names, e.g, from a son-emu-cli call
+ # found the right link and connected switch
+ dst_sw = connected_sw
+ dst_sw_outport_nr = link_dict[link]['src_port_nr']
+ dst_sw_outport_name = link_dict[link]['src_port_name']
+ break
+
+ if not tag >= 0:
+ LOG.exception('tag not valid: {0}'.format(tag))
+
+ # get shortest path
+ try:
+ # returns the first found shortest path
+ # if all shortest paths are wanted, use: all_shortest_paths
+ path = nx.shortest_path(self.DCNetwork_graph, src_sw, dst_sw, weight=kwargs.get('weight'))
+ except:
+ LOG.exception("No path could be found between {0} and {1} using src_sw={2} and dst_sw={3}".format(
+ vnf_src_name, vnf_dst_name, src_sw, dst_sw))
+ LOG.debug("Graph nodes: %r" % self.DCNetwork_graph.nodes())
+ LOG.debug("Graph edges: %r" % self.DCNetwork_graph.edges())
+ for e, v in self.DCNetwork_graph.edges():
+ LOG.debug("%r" % self.DCNetwork_graph[e][v])
+ return "No path could be found between {0} and {1}".format(vnf_src_name, vnf_dst_name)
+
+ LOG.info("Path between {0} and {1}: {2}".format(vnf_src_name, vnf_dst_name, path))
+
+ current_hop = src_sw
+ switch_inport_nr = src_sw_inport_nr
+
+ cmd = kwargs.get('cmd')
+
+ #iterate through the path to install the flow-entries
+ for i in range(0,len(path)):
+ current_node = self.getNodeByName(current_hop)
+
+ if path.index(current_hop) < len(path)-1:
+ next_hop = path[path.index(current_hop)+1]
+ else:
+ #last switch reached
+ next_hop = vnf_dst_name
+
+ next_node = self.getNodeByName(next_hop)
+
+ if next_hop == vnf_dst_name:
+ switch_outport_nr = dst_sw_outport_nr
+ LOG.info("end node reached: {0}".format(vnf_dst_name))
+ elif not isinstance( next_node, OVSSwitch ):
+ LOG.info("Next node: {0} is not a switch".format(next_hop))
+ return "Next node: {0} is not a switch".format(next_hop)
+ else:
+ # take first link between switches by default
+ index_edge_out = 0
+ switch_outport_nr = self.DCNetwork_graph[current_hop][next_hop][index_edge_out]['src_port_nr']
+
+
+ # set of entry via ovs-ofctl
+ if isinstance( current_node, OVSSwitch ):
+ kwargs['vlan'] = tag
+ kwargs['path'] = path
+ kwargs['current_hop'] = current_hop
+ kwargs['switch_inport_name'] = src_sw_inport_name
+ kwargs['switch_outport_name'] = dst_sw_outport_name
+ kwargs['skip_vlan_tag'] = True
+
+ monitor_placement = kwargs.get('monitor_placement').strip()
+ # put monitor flow at the dst switch
+ insert_flow = False
+ if monitor_placement == 'tx' and path.index(current_hop) == 0: # first node:
+ insert_flow = True
+ # put monitoring flow at the src switch
+ elif monitor_placement == 'rx' and path.index(current_hop) == len(path) - 1: # last node:
+ insert_flow = True
+ elif monitor_placement not in ['rx', 'tx']:
+ LOG.exception('invalid monitor command: {0}'.format(monitor_placement))
+
+
+ if self.controller == RemoteController and insert_flow:
+ ## set flow entry via ryu rest api
+ self._set_flow_entry_ryu_rest(current_node, switch_inport_nr, switch_outport_nr, **kwargs)
+ break
+ elif insert_flow:
+ ## set flow entry via ovs-ofctl
+ self._set_flow_entry_dpctl(current_node, switch_inport_nr, switch_outport_nr, **kwargs)
+ break
+
+ # take first link between switches by default
+ if isinstance( next_node, OVSSwitch ):
+ switch_inport_nr = self.DCNetwork_graph[current_hop][next_hop][0]['dst_port_nr']
+ current_hop = next_hop
+
+ return "path {2} between {0} and {1}".format(vnf_src_name, vnf_dst_name, cmd)
+
+
def setChain(self, vnf_src_name, vnf_dst_name, vnf_src_interface=None, vnf_dst_interface=None, **kwargs):
"""
Chain 2 vnf interfaces together by installing the flowrules in the switches along their path.
:param cookie: cookie for the installed flowrules (can be used later as identifier for a set of installed chains)
:param match: custom match entry to be added to the flowrules (default: only in_port and vlan tag)
:param priority: custom flowrule priority
+<<<<<<< HEAD
+ :param monitor: boolean to indicate whether this chain is a monitoring chain
+ :param tag: vlan tag to be used for this chain (pre-defined or new one if none is specified)
+=======
:param path: custom path between the two VNFs (list of switches)
+>>>>>>> upstream/master
:return: output log string
"""
+
+ # special procedure for monitoring flows
+ if kwargs.get('monitor'):
+
+ # check if chain already exists
+ found_chains = [chain_dict for chain_dict in self.installed_chains if
+ (chain_dict['vnf_src_name'] == vnf_src_name and chain_dict['vnf_src_interface'] == vnf_src_interface
+ and chain_dict['vnf_dst_name'] == vnf_dst_name and chain_dict['vnf_dst_interface'] == vnf_dst_interface)]
+
+ if len(found_chains) > 0:
+ # this chain exists, so need an extra monitoring flow
+ # assume only 1 chain per vnf/interface pair
+ LOG.debug('*** installing monitoring chain on top of pre-defined chain from {0}:{1} -> {2}:{3}'.
+ format(vnf_src_name, vnf_src_interface, vnf_dst_name, vnf_dst_interface))
+ tag = found_chains[0]['tag']
+ ret = self._addMonitorFlow(vnf_src_name, vnf_dst_name, vnf_src_interface, vnf_dst_interface,
+ tag=tag, table_id=0, **kwargs)
+ return ret
+ else:
+ # no chain existing (or E-LAN) -> install normal chain
+ LOG.warning('*** installing monitoring chain without pre-defined NSD chain from {0}:{1} -> {2}:{3}'.
+ format(vnf_src_name, vnf_src_interface, vnf_dst_name, vnf_dst_interface))
+ pass
+
+
cmd = kwargs.get('cmd')
- if cmd == 'add-flow':
+ if cmd == 'add-flow' or cmd == 'del-flows':
ret = self._chainAddFlow(vnf_src_name, vnf_dst_name, vnf_src_interface, vnf_dst_interface, **kwargs)
if kwargs.get('bidirectional'):
if kwargs.get('path') is not None:
kwargs['path'] = list(reversed(kwargs.get('path')))
ret = ret +'\n' + self._chainAddFlow(vnf_dst_name, vnf_src_name, vnf_dst_interface, vnf_src_interface, **kwargs)
- elif cmd == 'del-flows':
- ret = self._chainAddFlow(vnf_src_name, vnf_dst_name, vnf_src_interface, vnf_dst_interface, **kwargs)
- if kwargs.get('bidirectional'):
- if kwargs.get('path') is not None:
- kwargs['path'] = list(reversed(kwargs.get('path')))
- ret = ret + '\n' + self._chainAddFlow(vnf_dst_name, vnf_src_name, vnf_dst_interface, vnf_src_interface, **kwargs)
-
else:
ret = "Command unknown"
def _chainAddFlow(self, vnf_src_name, vnf_dst_name, vnf_src_interface=None, vnf_dst_interface=None, **kwargs):
src_sw = None
- dst_sw = None
src_sw_inport_nr = 0
+ src_sw_inport_name = None
+ dst_sw = None
dst_sw_outport_nr = 0
+ dst_sw_outport_name = None
LOG.debug("call chainAddFlow vnf_src_name=%r, vnf_src_interface=%r, vnf_dst_name=%r, vnf_dst_interface=%r",
vnf_src_name, vnf_src_interface, vnf_dst_name, vnf_dst_interface)
# found the right link and connected switch
src_sw = connected_sw
src_sw_inport_nr = link_dict[link]['dst_port_nr']
+ src_sw_inport_name = link_dict[link]['dst_port_name']
break
if vnf_dst_interface is None:
# found the right link and connected switch
dst_sw = connected_sw
dst_sw_outport_nr = link_dict[link]['src_port_nr']
+ dst_sw_outport_name = link_dict[link]['src_port_name']
break
path = kwargs.get('path')
current_hop = src_sw
switch_inport_nr = src_sw_inport_nr
- # choose free vlan if path contains more than 1 switch
+ # choose free vlan
+ ## if path contains more than 1 switch
cmd = kwargs.get('cmd')
vlan = None
if cmd == 'add-flow':
- if len(path) > 1:
+ if kwargs.get('tag'):
+ # use pre-defined tag
+ vlan = kwargs.get('tag')
+ else:
vlan = self.vlans.pop()
+ # store the used vlan tag to identify this chain
+ if not kwargs.get('monitor'):
+ chain_dict = {}
+ chain_dict['vnf_src_name'] = vnf_src_name
+ chain_dict['vnf_dst_name'] = vnf_dst_name
+ chain_dict['vnf_src_interface'] = vnf_src_interface
+ chain_dict['vnf_dst_interface'] = vnf_dst_interface
+ chain_dict['tag'] = vlan
+ self.installed_chains.append(chain_dict)
+
+ #iterate through the path to install the flow-entries
for i in range(0,len(path)):
current_node = self.getNodeByName(current_hop)
if isinstance( current_node, OVSSwitch ):
kwargs['vlan'] = vlan
kwargs['path'] = path
+ kwargs['current_hop'] = current_hop
+ kwargs['switch_inport_name'] = src_sw_inport_name
+ kwargs['switch_outport_name'] = dst_sw_outport_name
kwargs['pathindex'] = i
if self.controller == RemoteController:
## set flow entry via ovs-ofctl
self._set_flow_entry_dpctl(current_node, switch_inport_nr, switch_outport_nr, **kwargs)
-
-
# take first link between switches by default
if isinstance( next_node, OVSSwitch ):
switch_inport_nr = self.DCNetwork_graph[current_hop][next_hop][0]['dst_port_nr']
vlan = kwargs.get('vlan')
priority = kwargs.get('priority')
+ # flag to not set the ovs port vlan tag
+ skip_vlan_tag = kwargs.get('skip_vlan_tag')
+ # table id to put this flowentry
+ table_id = kwargs.get('table_id')
+ if not table_id:
+ table_id = 0
s = ','
if match_input:
if priority:
flow['priority'] = int(priority)
+ flow['table_id'] = table_id
+
flow['actions'] = []
# possible Ryu actions, match fields:
prefix = 'stats/flowentry/add'
if vlan != None:
if index == 0: # first node
- action = {}
- action['type'] = 'PUSH_VLAN' # Push a new VLAN tag if a input frame is non-VLAN-tagged
- action['ethertype'] = 33024 # Ethertype 0x8100(=33024): IEEE 802.1Q VLAN-tagged frame
- flow['actions'].append(action)
- action = {}
- action['type'] = 'SET_FIELD'
- action['field'] = 'vlan_vid'
- # ryu expects the field to be masked
- action['value'] = vlan | 0x1000
- flow['actions'].append(action)
- elif index == len(path) -1: # last node
- match += ',dl_vlan=%s' % vlan
- action = {}
- action['type'] = 'POP_VLAN'
- flow['actions'].append(action)
+ # set vlan tag in ovs instance (to isolate E-LANs)
+ if not skip_vlan_tag:
+ in_port_name = kwargs.get('switch_inport_name')
+ self._set_vlan_tag(node, in_port_name, vlan)
+ # set vlan push action if more than 1 switch in the path
+ if len(path) > 1:
+ action = {}
+ action['type'] = 'PUSH_VLAN' # Push a new VLAN tag if a input frame is non-VLAN-tagged
+ action['ethertype'] = 33024 # Ethertype 0x8100(=33024): IEEE 802.1Q VLAN-tagged frame
+ flow['actions'].append(action)
+ action = {}
+ action['type'] = 'SET_FIELD'
+ action['field'] = 'vlan_vid'
+ # ryu expects the field to be masked
+ action['value'] = vlan | 0x1000
+ flow['actions'].append(action)
+
+ elif index == len(path) - 1: # last node
+ # set vlan tag in ovs instance (to isolate E-LANs)
+ if not skip_vlan_tag:
+ out_port_name = kwargs.get('switch_outport_name')
+ self._set_vlan_tag(node, out_port_name, vlan)
+ # set vlan pop action if more than 1 switch in the path
+ if len(path) > 1:
+ match += ',dl_vlan=%s' % vlan
+ action = {}
+ action['type'] = 'POP_VLAN'
+ flow['actions'].append(action)
+
else: # middle nodes
match += ',dl_vlan=%s' % vlan
+
# output action must come last
action = {}
action['type'] = 'OUTPUT'
flow['match'] = self._parse_match(match)
self.ryu_REST(prefix, data=flow)
+ def _set_vlan_tag(self, node, switch_port, tag):
+ node.vsctl('set', 'port {0} tag={1}'.format(switch_port,tag))
+ LOG.debug("set vlan in switch: {0} in_port: {1} vlan tag: {2}".format(node.name, switch_port, tag))
+
def _set_flow_entry_dpctl(self, node, switch_inport_nr, switch_outport_nr, **kwargs):
+
match = 'in_port=%s' % switch_inport_nr
cookie = kwargs.get('cookie')
def startRyu(self, learning_switch=True):
# start Ryu controller with rest-API
python_install_path = site.getsitepackages()[0]
- ryu_path = python_install_path + '/ryu/app/simple_switch_13.py'
+ # ryu default learning switch
+ #ryu_path = python_install_path + '/ryu/app/simple_switch_13.py'
+ #custom learning switch that installs a default NORMAL action in the ovs switches
+ dir_path = os.path.dirname(os.path.realpath(__file__))
+ ryu_path = dir_path + '/son_emu_simple_switch_13.py'
ryu_path2 = python_install_path + '/ryu/app/ofctl_rest.py'
# change the default Openflow controller port to 6653 (official IANA-assigned port number), as used by Mininet
# Ryu still uses 6633 as default
FNULL = open("/tmp/ryu.log", 'w')
if learning_switch:
self.ryu_process = Popen([ryu_cmd, ryu_path, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
+ LOG.debug('starting ryu-controller with {0}'.format(ryu_path))
+ LOG.debug('starting ryu-controller with {0}'.format(ryu_path2))
else:
# no learning switch, but with rest api
self.ryu_process = Popen([ryu_cmd, ryu_path2, ryu_option, ryu_of_port], stdout=FNULL, stderr=FNULL)
+ LOG.debug('starting ryu-controller with {0}'.format(ryu_path2))
time.sleep(1)
def killRyu(self):
dict.update({match[0]:m2})
return dict
+ def find_connected_dc_interface(self, vnf_src_name, vnf_src_interface):
+ for connected_sw in self.DCNetwork_graph.neighbors(vnf_src_name):
+ link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
+ for link in link_dict:
+ if (link_dict[link]['src_port_id'] == vnf_src_interface or
+ link_dict[link]['src_port_name'] == vnf_src_interface): # Fix: we might also get interface names, e.g, from a son-emu-cli call
+ # found the right link and connected switch
+ src_sw = connected_sw
+ src_sw_inport_nr = link_dict[link]['dst_port_nr']
+ src_sw_inport_name = link_dict[link]['dst_port_name']
+ return src_sw_inport_name
DCDPID_BASE = 1000 # start of switch dpid's used for data center switches
-
class EmulatorCompute(Docker):
"""
Emulator specific compute node class.
Helper method to receive information about the virtual networks
this compute instance is connected to.
"""
- # format list of tuples (name, Ip, MAC, isUp, status)
- return [{'intf_name':str(i), 'ip':i.IP(), 'mac':i.MAC(), 'up':i.isUp(), 'status':i.status()}
- for i in self.intfList()]
+ # get all links and find dc switch interface
+ networkStatusList = []
+ for i in self.intfList():
+ vnf_name = self.name
+ vnf_interface = str(i)
+ dc_port_name = self.datacenter.net.find_connected_dc_interface(vnf_name, vnf_interface)
+ # format list of tuples (name, Ip, MAC, isUp, status, dc_portname)
+ intf_dict = {'intf_name': str(i), 'ip': i.IP(), 'mac': i.MAC(), 'up': i.isUp(), 'status': i.status(), 'dc_portname': dc_port_name}
+ networkStatusList.append(intf_dict)
+
+ return networkStatusList
def getStatus(self):
"""
status["memswap_limit"] = self.memswap_limit
status["state"] = self.dcli.inspect_container(self.dc)["State"]
status["id"] = self.dcli.inspect_container(self.dc)["Id"]
+ status["short_id"] = self.dcli.inspect_container(self.dc)["Id"][:12]
status["datacenter"] = (None if self.datacenter is None
else self.datacenter.label)
return status
if len(network) < 1:
network.append({})
+ # apply hard-set resource limits=0
+ cpu_percentage = params.get('cpu_percent')
+ if cpu_percentage:
+ params['cpu_period'] = self.net.cpu_period
+ params['cpu_quota'] = self.net.cpu_period * float(cpu_percentage)
+
# create the container
d = self.net.addDocker(
"%s" % (name),
dcmd=command,
datacenter=self,
flavor_name=flavor_name,
+ environment = {'VNF_NAME':name},
**params
)
+
+
# apply resource limits to container if a resource model is defined
if self._resource_model is not None:
try:
--- /dev/null
+# Copyright (C) 2011 Nippon Telegraph and Telephone 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 ryu.base import app_manager
+from ryu.controller import ofp_event
+from ryu.controller.handler import CONFIG_DISPATCHER, MAIN_DISPATCHER
+from ryu.controller.handler import set_ev_cls
+from ryu.ofproto import ofproto_v1_3
+from ryu.lib.packet import packet
+from ryu.lib.packet import ethernet
+from ryu.lib.packet import ether_types
+from ryu.topology.event import EventSwitchEnter, EventSwitchLeave, EventSwitchReconnected
+
+class SimpleSwitch13(app_manager.RyuApp):
+ OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
+
+ def __init__(self, *args, **kwargs):
+ super(SimpleSwitch13, self).__init__(*args, **kwargs)
+ self.mac_to_port = {}
+
+ @set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
+ def switch_features_handler(self, ev):
+ datapath = ev.msg.datapath
+ ofproto = datapath.ofproto
+ parser = datapath.ofproto_parser
+
+ # install table-miss flow entry
+ #
+ # We specify NO BUFFER to max_len of the output action due to
+ # OVS bug. At this moment, if we specify a lesser number, e.g.,
+ # 128, OVS will send Packet-In with invalid buffer_id and
+ # truncated packet data. In that case, we cannot output packets
+ # correctly. The bug has been fixed in OVS v2.1.0.
+ match = parser.OFPMatch()
+ #actions = [parser.OFPActionOutput(ofproto.OFPP_CONTROLLER,
+ # ofproto.OFPCML_NO_BUFFER)]
+ actions = [parser.OFPActionOutput(ofproto.OFPCML_NO_BUFFER)]
+ self.add_flow(datapath, 0, match, actions)
+
+ def add_flow(self, datapath, priority, match, actions, buffer_id=None, table_id=0):
+ ofproto = datapath.ofproto
+ parser = datapath.ofproto_parser
+
+ inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
+ actions)]
+ if buffer_id:
+ mod = parser.OFPFlowMod(datapath=datapath, buffer_id=buffer_id,
+ priority=priority, match=match,
+ instructions=inst, table_id=table_id)
+ else:
+ mod = parser.OFPFlowMod(datapath=datapath, priority=priority,
+ match=match, instructions=inst, table_id=table_id)
+ datapath.send_msg(mod)
+
+ # new switch detected
+
+ @set_ev_cls([EventSwitchEnter, EventSwitchReconnected])
+ def _ev_switch_enter_handler(self, ev):
+ datapath = ev.switch.dp
+ self.logger.info('registered OF switch id: %s' % datapath.id)
+ ofproto = datapath.ofproto
+ self.logger.info('OF version: {0}'.format(ofproto))
+ # send NORMAL action for all undefined flows
+ ofp_parser = datapath.ofproto_parser
+ actions = [ofp_parser.OFPActionOutput(ofproto_v1_3.OFPP_NORMAL)]
+ self.add_flow(datapath, 0, None, actions, table_id=0)
+
+
+ @set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
+ def _packet_in_handler(self, ev):
+ # If you hit this you might want to increase
+ # the "miss_send_length" of your switch
+ if ev.msg.msg_len < ev.msg.total_len:
+ self.logger.debug("packet truncated: only %s of %s bytes",
+ ev.msg.msg_len, ev.msg.total_len)
+ msg = ev.msg
+ datapath = msg.datapath
+ ofproto = datapath.ofproto
+ parser = datapath.ofproto_parser
+ in_port = msg.match['in_port']
+
+ pkt = packet.Packet(msg.data)
+ eth = pkt.get_protocols(ethernet.ethernet)[0]
+
+ if eth.ethertype == ether_types.ETH_TYPE_LLDP:
+ # ignore lldp packet
+ return
+ dst = eth.dst
+ src = eth.src
+
+ dpid = datapath.id
+ self.mac_to_port.setdefault(dpid, {})
+
+ self.logger.info("packet in %s %s %s %s", dpid, src, dst, in_port)
+
+ # learn a mac address to avoid FLOOD next time.
+ self.mac_to_port[dpid][src] = in_port
+
+ if dst in self.mac_to_port[dpid]:
+ out_port = self.mac_to_port[dpid][dst]
+ else:
+ out_port = ofproto.OFPP_FLOOD
+
+ actions = [parser.OFPActionOutput(out_port)]
+
+ # install a flow to avoid packet_in next time
+ if out_port != ofproto.OFPP_FLOOD:
+ match = parser.OFPMatch(in_port=in_port, eth_dst=dst)
+ # verify if we have a valid buffer_id, if yes avoid to send both
+ # flow_mod & packet_out
+ if msg.buffer_id != ofproto.OFP_NO_BUFFER:
+ self.add_flow(datapath, 1, match, actions, msg.buffer_id)
+ return
+ else:
+ self.add_flow(datapath, 1, match, actions)
+ data = None
+ if msg.buffer_id == ofproto.OFP_NO_BUFFER:
+ data = msg.data
+
+ out = parser.OFPPacketOut(datapath=datapath, buffer_id=msg.buffer_id,
+ in_port=in_port, actions=actions, data=data)
+ datapath.send_msg(out)
--- /dev/null
+"""
+Copyright (c) 2015 SONATA-NFV
+ALL RIGHTS RESERVED.
+
+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.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+"""
+A simple topology with two PoPs for the y1 demo story board.
+
+ (dc1) <<-->> s1 <<-->> (dc2)
+
+- SAP deployment enabled
+- learning switch enabled
+"""
+
+import logging
+from mininet.log import setLogLevel
+from emuvim.dcemulator.net import DCNetwork
+from emuvim.api.rest.rest_api_endpoint import RestApiEndpoint
+from emuvim.api.sonata import SonataDummyGatekeeperEndpoint
+from mininet.node import RemoteController
+
+logging.basicConfig(level=logging.INFO)
+
+
+def create_topology1():
+ # create topology
+ net = DCNetwork(controller=RemoteController, monitor=True, enable_learning=True)
+ dc1 = net.addDatacenter("dc1")
+
+
+ # add the command line interface endpoint to each DC (REST API)
+ rapi1 = RestApiEndpoint("0.0.0.0", 5001)
+ rapi1.connectDCNetwork(net)
+ rapi1.connectDatacenter(dc1)
+ # run API endpoint server (in another thread, don't block)
+ rapi1.start()
+
+ # add the SONATA dummy gatekeeper to each DC
+ sdkg1 = SonataDummyGatekeeperEndpoint("0.0.0.0", 5000, deploy_sap=True)
+ sdkg1.connectDatacenter(dc1)
+ # run the dummy gatekeeper (in another thread, don't block)
+ sdkg1.start()
+
+ # start the emulation platform
+ net.start()
+ net.CLI()
+ net.stop()
+
+
+def main():
+ setLogLevel('info') # set Mininet loglevel
+ create_topology1()
+
+
+if __name__ == '__main__':
+ main()
--- /dev/null
+"""
+Copyright (c) 2015 SONATA-NFV
+ALL RIGHTS RESERVED.
+
+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.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+"""
+A simple topology with two PoPs for the y1 demo story board.
+
+ (dc1) <<-->> s1 <<-->> (dc2)
+
+- SAP deployment enabled
+- learning switch enabled
+"""
+
+import logging
+from mininet.log import setLogLevel
+from emuvim.dcemulator.net import DCNetwork
+from emuvim.api.rest.rest_api_endpoint import RestApiEndpoint
+from emuvim.api.sonata import SonataDummyGatekeeperEndpoint
+from mininet.node import RemoteController
+
+logging.basicConfig(level=logging.INFO)
+
+
+def create_topology1():
+ # create topology
+ net = DCNetwork(controller=RemoteController, monitor=True, enable_learning=True)
+ dc1 = net.addDatacenter("dc1")
+
+
+ # add the command line interface endpoint to each DC (REST API)
+ rapi1 = RestApiEndpoint("0.0.0.0", 5001)
+ rapi1.connectDCNetwork(net)
+ rapi1.connectDatacenter(dc1)
+ # run API endpoint server (in another thread, don't block)
+ rapi1.start()
+
+ # add the SONATA dummy gatekeeper to each DC
+ sdkg1 = SonataDummyGatekeeperEndpoint("0.0.0.0", 5000, deploy_sap=True)
+ sdkg1.connectDatacenter(dc1)
+ # run the dummy gatekeeper (in another thread, don't block)
+ sdkg1.start()
+
+ # start the emulation platform
+ net.start()
+ net.CLI()
+ net.stop()
+
+
+def main():
+ setLogLevel('info') # set Mininet loglevel
+ create_topology1()
+
+
+if __name__ == '__main__':
+ main()
def create_topology1():
# create topology
- net = DCNetwork(controller=RemoteController, monitor=True, enable_learning=False)
+ net = DCNetwork(controller=RemoteController, monitor=True, enable_learning=True)
dc1 = net.addDatacenter("dc1")
dc2 = net.addDatacenter("dc2")
s1 = net.addSwitch("s1")
Helper to interact with local docker instance.
"""
if self.docker_cli is None:
- self.docker_cli = docker.Client(
+ self.docker_cli = docker.APIClient(
base_url='unix://var/run/docker.sock')
return self.docker_cli
Helper to interact with local docker instance.
"""
if self.docker_cli is None:
- self.docker_cli = docker.Client(
+ self.docker_cli = docker.APIClient(
base_url='unix://var/run/docker.sock')
return self.docker_cli
# @unittest.skip("disabled")
def test_GK_Api_start_service(self):
# create network
- self.createNet(nswitches=0, ndatacenter=2, nhosts=2, ndockers=0)
+ self.createNet(nswitches=0, ndatacenter=2, nhosts=2, ndockers=0, enable_learning=True)
# setup links
self.net.addLink(self.dc[0], self.h[0])
self.net.addLink(self.dc[0], self.dc[1])
# check compute list result
self.assertEqual(len(self.dc[0].listCompute()), 2)
# check connectivity by using ping
+ ELAN_list=[]
+ for i in [0]:
+ for vnf in self.dc[i].listCompute():
+ # check connection
+ p = self.net.ping([self.h[i], vnf])
+ print p
+ self.assertTrue(p <= 0.0)
+
+ # check E LAN connection
+ network_list = vnf.getNetworkStatus()
+ mgmt_ip = [intf['ip'] for intf in network_list if intf['intf_name'] == 'mgmt']
+ self.assertTrue(len(mgmt_ip) > 0)
+ ip_address = mgmt_ip[0]
+ ELAN_list.append(ip_address)
+ print ip_address
+
+ # check ELAN connection by ping over the mgmt network (needs to be configured as ELAN in the test service)
for vnf in self.dc[0].listCompute():
- p = self.net.ping([self.h[0], vnf])
- self.assertTrue(p <= 50.0)
+ network_list = vnf.getNetworkStatus()
+ mgmt_ip = [intf['ip'] for intf in network_list if intf['intf_name'] == 'mgmt']
+ self.assertTrue(len(mgmt_ip) > 0)
+ ip_address = mgmt_ip[0]
+ print ELAN_list
+ print ip_address
+ test_ip_list = list(ELAN_list)
+ test_ip_list.remove(ip_address)
+ for ip in test_ip_list:
+ p = self.net.ping([vnf],manualdestip=ip)
+ print p
+ self.assertTrue(p <= 0.0)
+
# stop Mininet network
self.stopNet()
initialize_GK()
projects / osm / vim-emu.git / commitdiff