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 from requests import get, put, delete
  29 from tabulate import tabulate
  30 import pprint
  31 import argparse
  32 import json
  33 from emuvim.cli import prometheus
  34
  35 pp = pprint.PrettyPrinter(indent=4)
  36
  37 class RestApiClient():
  38
  39     def __init__(self):
  40         self.cmds = {}
  41
  42     def execute_command(self, args):
  43         if getattr(self, args["command"]) is not None:
  44             # call the local method with the same name as the command arg
  45             getattr(self, args["command"])(args)
  46         else:
  47             print("Command not implemented.")
  48
  49     def setup_metric(self, args):
  50         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  51         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  52
  53         response = put("%s/restapi/monitor/%s/%s/%s" %
  54                        (args.get("endpoint"),
  55                         vnf_name,
  56                         vnf_interface,
  57                         args.get("metric")))
  58         pp.pprint(response.json())
  59
  60     def stop_metric(self, args):
  61         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  62         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  63
  64         response = delete("%s/restapi/monitor/%s/%s/%s" %
  65                        (args.get("endpoint"),
  66                         vnf_name,
  67                         vnf_interface,
  68                         args.get("metric")))
  69         pp.pprint(response.json())
  70
  71     def setup_flow(self, args):
  72         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  73         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  74
  75         response = put("%s/restapi/monitor/%s/%s/%s/%s" %
  76                        (args.get("endpoint"),
  77                         vnf_name,
  78                         vnf_interface,
  79                         args.get("metric"),
  80                         args.get("cookie")))
  81
  82         pp.pprint(response.json())
  83
  84     def stop_flow(self, args):
  85         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
  86         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
  87
  88         response = delete("%s/restapi/monitor/%s/%s/%s/%s" %
  89                        (args.get("endpoint"),
  90                         vnf_name,
  91                         vnf_interface,
  92                         args.get("metric"),
  93                         args.get("cookie")))
  94
  95         pp.pprint(response.json())
  96
  97     def prometheus(self, args):
  98         # This functions makes it more user-friendly to create the correct prometheus query
  99         # <uuid> is replaced by the correct uuid of the deployed vnf container
 100         vnf_name = self._parse_vnf_name(args.get("vnf_name"))
 101         vnf_interface = self._parse_vnf_interface(args.get("vnf_name"))
 102         dc_label = args.get("datacenter")
 103         query = args.get("query")
 104         vnf_status = get("%s/restapi/compute/%s/%s" %
 105             (args.get("endpoint"),
 106              args.get("datacenter"),
 107              vnf_name)).json()
 108         uuid = vnf_status['id']
 109         query = query.replace('<uuid>', uuid)
 110
 111         response = prometheus.query_Prometheus(query)
 112         pp.pprint(response)
 113
 114     def _parse_vnf_name(self, vnf_name_str):
 115         vnf_name = vnf_name_str.split(':')[0]
 116         return vnf_name
 117
 118     def _parse_vnf_interface(self, vnf_name_str):
 119         try:
 120             vnf_interface = vnf_name_str.split(':')[1]
 121         except:
 122             vnf_interface = None
 123
 124         return vnf_interface
 125
 126 parser = argparse.ArgumentParser(description='son-emu monitor')
 127 parser.add_argument(
 128     "command",
 129     choices=['setup_metric', 'stop_metric', 'setup_flow', 'stop_flow','prometheus'],
 130     help="setup/stop a metric/flow to be monitored or query Prometheus")
 131 parser.add_argument(
 132     "--vnf_name", "-vnf", dest="vnf_name",
 133     help="vnf name:interface to be monitored")
 134 parser.add_argument(
 135     "--metric", "-m", dest="metric",
 136     help="tx_bytes, rx_bytes, tx_packets, rx_packets")
 137 parser.add_argument(
 138     "--cookie", "-c", dest="cookie",
 139     help="flow cookie to monitor")
 140 parser.add_argument(
 141     "--query", "-q", dest="query",
 142     help="prometheus query")
 143 parser.add_argument(
 144     "--datacenter", "-d", dest="datacenter",
 145     help="Data center where the vnf is deployed")
 146 parser.add_argument(
 147     "--endpoint", "-e", dest="endpoint",
 148     default="http://127.0.0.1:5001",
 149     help="UUID of the plugin to be manipulated.")
 150
 151 def main(argv):
 152     args = vars(parser.parse_args(argv))
 153     c = RestApiClient()
 154     c.execute_command(args)