X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=src%2Femuvim%2Fapi%2Frest%2Fmonitor.py;h=737048d5d9a814475e83a9fe340ff7290a52dd37;hb=9cc7360bf2c0dacb869d8ed0674d9d9e269a1082;hp=b1edbc3bf59f64227dda43febe8ef18d474fc238;hpb=8945ecfc73514b99b6798dfe774263a45df2896d;p=osm%2Fvim-emu.git diff --git a/src/emuvim/api/rest/monitor.py b/src/emuvim/api/rest/monitor.py index b1edbc3..737048d 100755 --- a/src/emuvim/api/rest/monitor.py +++ b/src/emuvim/api/rest/monitor.py @@ -1,3 +1,37 @@ +""" +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). +""" + +""" +Distributed Cloud Emulator (dcemulator) +Networking and monitoring functions +(c) 2015 by Steven Van Rossem +""" + import logging from flask_restful import Resource from flask import request @@ -19,20 +53,26 @@ class MonitorInterfaceAction(Resource): """ global net - def put(self, vnf_name, vnf_interface, metric): + 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 except Exception as ex: logging.exception("API error.") return ex.message, 500 - def delete(self, vnf_name, vnf_interface, metric): + 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 except Exception as ex: @@ -51,7 +91,7 @@ class MonitorFlowAction(Resource): """ global net - def put(self, vnf_name, vnf_interface, metric, cookie): + def put(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0): logging.debug("REST CALL: start monitor VNF interface") try: c = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie) @@ -61,12 +101,111 @@ class MonitorFlowAction(Resource): logging.exception("API error.") return ex.message, 500 - def delete(self, vnf_name, vnf_interface, metric, cookie): + def delete(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0): logging.debug("REST CALL: stop monitor VNF interface") try: c = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie) # return monitor message response return str(c), 200 + except Exception as ex: + logging.exception("API error.") + return ex.message, 500 + +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 + + 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 + + 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 = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie) + + # return setChain response + return (str(c1) + " " + str(c2)), 200 except Exception as ex: logging.exception("API error.") return ex.message, 500 \ No newline at end of file