src/emuvim/cli/rest/monitor.py

   1 """
   2 Copyright (c) 2015 SONATA-NFV
   3 ALL RIGHTS RESERVED.
   4
   5 Licensed under the Apache License, Version 2.0 (the "License");
   6 you may not use this file except in compliance with the License.
   7 You may obtain a copy of the License at
   8
   9     http://www.apache.org/licenses/LICENSE-2.0
  10
  11 Unless required by applicable law or agreed to in writing, software
  12 distributed under the License is distributed on an "AS IS" BASIS,
  13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 See the License for the specific language governing permissions and
  15 limitations under the License.
  16
  17 Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
  18 nor the names of its contributors may be used to endorse or promote
  19 products derived from this software without specific prior written
  20 permission.
  21
  22 This work has been performed in the framework of the SONATA project,
  23 funded by the European Commission under Grant number 671517 through
  24 the Horizon 2020 and 5G-PPP programmes. The authors would like to
  25 acknowledge the contributions of their colleagues of the SONATA
  26 partner consortium (www.sonata-nfv.eu).
  27 """
  28
  29 from requests import get, put, delete
  30 import pprint
  31 import argparse
  32 from emuvim.cli import prometheus
  33
  34 pp = pprint.PrettyPrinter(indent=4)
  35
  36 class RestApiClient():
  37
  38     def __init__(self):
  39         self.cmds = {}
  40
  41     def execute_command(self, args):
  42         if getattr(self, args["command"]) is not None:
  43             # call the local method with the same name as the command arg
  44             getattr(self, args["command"])(args)
  45         else:
  46             print("Command not implemented.")
  47
  48     def setup_metric(self, args):
  49         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  50         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  51
  52         response = put("%s/restapi/monitor/interface/%s/%s/%s" %
  53                        (args.get("endpoint"),
  54                         vnf_name,
  55                         vnf_interface,
  56                         args.get("metric")))
  57         pp.pprint(response.json())
  58
  59     def stop_metric(self, args):
  60         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  61         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  62
  63         response = delete("%s/restapi/monitor/interface/%s/%s/%s" %
  64                        (args.get("endpoint"),
  65                         vnf_name,
  66                         vnf_interface,
  67                         args.get("metric")))
  68         pp.pprint(response.json())
  69
  70     def setup_flow(self, args):
  71         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  72         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  73
  74         response = put("%s/restapi/monitor/flow/%s/%s/%s/%s" %
  75                        (args.get("endpoint"),
  76                         vnf_name,
  77                         vnf_interface,
  78                         args.get("metric"),
  79                         args.get("cookie")))
  80
  81         pp.pprint(response.json())
  82
  83     def stop_flow(self, args):
  84         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  85         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  86
  87         response = delete("%s/restapi/monitor/flow/%s/%s/%s/%s" %
  88                        (args.get("endpoint"),
  89                         vnf_name,
  90                         vnf_interface,
  91                         args.get("metric"),
  92                         args.get("cookie")))
  93
  94         pp.pprint(response.json())
  95
  96     def prometheus(self, args):
  97         # This functions makes it more user-friendly to create the correct prometheus query
  98         # <uuid> is replaced by the correct uuid of the deployed vnf container
  99         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
 100         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
 101         dc_label = args.get("datacenter")
 102         query = args.get("query")
 103         vnf_status = get("%s/restapi/compute/%s/%s" %
 104             (args.get("endpoint"),
 105              args.get("datacenter"),
 106              vnf_name)).json()
 107         uuid = vnf_status['id']
 108         query = query.replace('<uuid>', uuid)
 109
 110         response = prometheus.query_Prometheus(query)
 111         pp.pprint(response)
 112
 113     def _parse_vnf_name(self, vnf_name_str):
 114         vnf_name = vnf_name_str.split(':')[0]
 115         return vnf_name
 116
 117     def _parse_vnf_interface(self, vnf_name_str):
 118         try:
 119             vnf_interface = vnf_name_str.split(':')[1]
 120         except:
 121             vnf_interface = None
 122
 123         return vnf_interface
 124
 125 parser = argparse.ArgumentParser(description='son-emu monitor')
 126 parser.add_argument(
 127     "command",
 128     choices=['setup_metric', 'stop_metric', 'setup_flow', 'stop_flow','prometheus'],
 129     help="setup/stop a metric/flow to be monitored or query Prometheus")
 130 parser.add_argument(
 131     "--vnf_name", "-vnf", dest="vnf_name",
 132     help="vnf name:interface to be monitored")
 133 parser.add_argument(
 134     "--metric", "-m", dest="metric",
 135     help="tx_bytes, rx_bytes, tx_packets, rx_packets")
 136 parser.add_argument(
 137     "--cookie", "-c", dest="cookie",
 138     help="flow cookie to monitor")
 139 parser.add_argument(
 140     "--query", "-q", dest="query",
 141     help="prometheus query")
 142 parser.add_argument(
 143     "--datacenter", "-d", dest="datacenter",
 144     help="Data center where the vnf is deployed")
 145 parser.add_argument(
 146     "--endpoint", "-e", dest="endpoint",
 147     default="http://127.0.0.1:5001",
 148     help="UUID of the plugin to be manipulated.")
 149
 150 def main(argv):
 151     args = vars(parser.parse_args(argv))
 152     c = RestApiClient()
 153     c.execute_command(args)