X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2Fvim-emu.git;a=blobdiff_plain;f=src%2Femuvim%2Fapi%2Frest%2Fmonitor.py;h=bf0f26bd42d0e8372f20583009171acffd95cafb;hp=45d954116dd3ad4c81df4b6752e2361abc504570;hb=5b428742f78d79c2c465957b01d911a3513c3d30;hpb=7d3b58ecf115dc6dc5932f5f4ac406ba05e739fd diff --git a/src/emuvim/api/rest/monitor.py b/src/emuvim/api/rest/monitor.py index 45d9541..bf0f26b 100755 --- a/src/emuvim/api/rest/monitor.py +++ b/src/emuvim/api/rest/monitor.py @@ -33,11 +33,13 @@ Networking and monitoring functions """ import logging -from flask_restful import Resource +from flask_restful import Resource, reqparse from flask import request import json -logging.basicConfig(level=logging.INFO) +logging.basicConfig() + +CORS_HEADER = {'Access-Control-Allow-Origin': '*'} net = None @@ -53,25 +55,49 @@ class MonitorInterfaceAction(Resource): """ global net - def put(self, vnf_name, vnf_interface=None, metric='tx_packets'): + def put(self): logging.debug("REST CALL: start monitor VNF interface") + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_name = data.get("vnf_name") + vnf_interface = data.get("vnf_interface", None) + metric = data.get("metric", 'tx_packets') + cookie = data.get("cookie") + 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 + return str(c), 200, CORS_HEADER except Exception as ex: logging.exception("API error.") - return ex.message, 500 + return ex.message, 500, CORS_HEADER - def delete(self, vnf_name, vnf_interface=None, metric='tx_packets'): + def delete(self): logging.debug("REST CALL: stop monitor VNF interface") + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_name = data.get("vnf_name") + vnf_interface = data.get("vnf_interface", None) + metric = data.get("metric", 'tx_packets') + cookie = data.get("cookie") + 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 + return str(c), 200, CORS_HEADER except Exception as ex: logging.exception("API error.") - return ex.message, 500 + return ex.message, 500, CORS_HEADER class MonitorFlowAction(Resource): @@ -85,22 +111,219 @@ class MonitorFlowAction(Resource): """ global net - def put(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0): + def put(self): logging.debug("REST CALL: start monitor VNF interface") + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_name = data.get("vnf_name") + vnf_interface = data.get("vnf_interface", None) + metric = data.get("metric", 'tx_packets') + cookie = data.get("cookie", 0) + try: c = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie) # return monitor message response - return str(c), 200 + return str(c), 200, CORS_HEADER except Exception as ex: logging.exception("API error.") - return ex.message, 500 + return ex.message, 500, CORS_HEADER - def delete(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0): + def delete(self): logging.debug("REST CALL: stop monitor VNF interface") + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_name = data.get("vnf_name") + vnf_interface = data.get("vnf_interface", None) + metric = data.get("metric", 'tx_packets') + cookie = data.get("cookie", 0) + try: c = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie) # return monitor message response - return str(c), 200 + return str(c), 200, CORS_HEADER + 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): + logging.debug("REST CALL: monitor link flow add") + + try: + command = 'add-flow' + return self._MonitorLinkAction(command=command) + except Exception as ex: + logging.exception("API error.") + return ex.message, 500, CORS_HEADER + + def delete(self): + logging.debug("REST CALL: monitor link flow remove") + + try: + command = 'del-flows' + return self._MonitorLinkAction(command=command) + except Exception as ex: + logging.exception("API error.") + return ex.message, 500, CORS_HEADER + + def _MonitorLinkAction(self, command=None): + # call DCNetwork method, not really datacenter specific API for now... + # no check if vnfs are really connected to this datacenter... + + try: + # check json payload + logging.debug("json: {}".format(request.json)) + logging.debug("args: {}".format(request.args)) + + data = request.json + if data is None: + data = request.args + if data is None: + data = {} + + vnf_src_name = data.get("vnf_src_name") + vnf_dst_name = data.get("vnf_dst_name") + 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, CORS_HEADER + +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): + logging.debug("REST CALL: start monitor skewness") + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_name = data.get("vnf_name") + resource_name = data.get("resource_name", 'cpu') + try: + # configure skewmon + c = net.monitor_agent.update_skewmon(vnf_name, resource_name, action='start') + + # 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): + logging.debug("REST CALL: stop monitor skewness") + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_name = data.get("vnf_name") + resource_name = data.get("resource_name", 'cpu') + 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 + +class MonitorTerminal(Resource): + """ + start a terminal for the selected VNFs + :param vnf_list: list of names of the VNFs to start a terminal from (all VNFs if None) + :return: message string indicating if the monitor action is succesful or not + """ + global net + + def get(self): + # get URL parameters + data = request.args + if data is None: + data = {} + vnf_list = data.get("vnf_list") + logging.debug("REST CALL: start terminal for: {}".format(vnf_list)) + try: + # start terminals + c = net.monitor_agent.term(vnf_list) + + # return monitor message response + return str(c), 200, CORS_HEADER except Exception as ex: logging.exception("API error.") - return ex.message, 500 \ No newline at end of file + return ex.message, 500, CORS_HEADER