src/emuvim/cli/rest/network.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 import pprint
  30 import argparse
  31
  32 pp = pprint.PrettyPrinter(indent=4)
  33
  34 class RestApiClient():
  35
  36     def __init__(self):
  37         self.cmds = {}
  38
  39     def execute_command(self, args):
  40         if getattr(self, args["command"]) is not None:
  41             # call the local method with the same name as the command arg
  42             getattr(self, args["command"])(args)
  43         else:
  44             print("Command not implemented.")
  45
  46     def add(self, args):
  47         params = self._create_dict(
  48             vnf_src_name=self._parse_vnf_name(args.get("source")),
  49             vnf_dst_name = self._parse_vnf_name(args.get("destination")),
  50             vnf_src_interface=self._parse_vnf_interface(args.get("source")),
  51             vnf_dst_interface=self._parse_vnf_interface(args.get("destination")),
  52             weight=args.get("weight"),
  53             match=args.get("match"),
  54             bidirectional=args.get("bidirectional"),
  55             cookie=args.get("cookie"),
  56             priority=args.get("priority"))
  57
  58         response = put("{0}/restapi/network".format(args.get("endpoint")),
  59                        params=params)
  60         pp.pprint(response.text)
  61
  62     def remove(self, args):
  63         params = self._create_dict(
  64             vnf_src_name = self._parse_vnf_name(args.get("source")),
  65             vnf_dst_name = self._parse_vnf_name(args.get("destination")),
  66             vnf_src_interface=self._parse_vnf_interface(args.get("source")),
  67             vnf_dst_interface=self._parse_vnf_interface(args.get("destination")),
  68             weight=args.get("weight"),
  69             match=args.get("match"),
  70             bidirectional=args.get("bidirectional"),
  71             cookie=args.get("cookie"),
  72             priority=args.get("priority"))
  73
  74         response = delete("{0}/restapi/network".format(args.get("endpoint")),
  75                           params=params)
  76         pp.pprint(response.text)
  77
  78     def _parse_vnf_name(self, vnf_name_str):
  79         vnf_name = vnf_name_str.split(':')[0]
  80         return vnf_name
  81
  82     def _parse_vnf_interface(self, vnf_name_str):
  83         try:
  84             vnf_interface = vnf_name_str.split(':')[1]
  85         except:
  86             vnf_interface = None
  87
  88         return vnf_interface
  89
  90     def _create_dict(self, **kwargs):
  91         return kwargs
  92
  93 parser = argparse.ArgumentParser(description='son-emu-cli network')
  94 parser.add_argument(
  95     "command",
  96     choices=['add', 'remove'],
  97     help="Action to be executed.")
  98 parser.add_argument(
  99     "--datacenter", "-d", dest="datacenter",
 100     help="Data center to in which the network action should be initiated")
 101 parser.add_argument(
 102     "--source", "-src", dest="source",
 103     help="vnf name of the source of the chain")
 104 parser.add_argument(
 105     "--destination", "-dst", dest="destination",
 106     help="vnf name of the destination of the chain")
 107 parser.add_argument(
 108     "--weight", "-w", dest="weight",
 109     help="weight edge attribute to calculate the path")
 110 parser.add_argument(
 111     "--priority", "-p", dest="priority", default="0",
 112     help="priority of flow rule")
 113 parser.add_argument(
 114     "--match", "-m", dest="match",
 115     help="string holding extra matches for the flow entries")
 116 parser.add_argument(
 117     "--bidirectional", "-b", dest="bidirectional", action='store_true',
 118     help="add/remove the flow entries from src to dst and back")
 119 parser.add_argument(
 120     "--cookie", "-c", dest="cookie",
 121     help="cookie for this flow, as easy to use identifier (eg. per tenant/service)")
 122 parser.add_argument(
 123     "--endpoint", "-e", dest="endpoint",
 124     default="http://127.0.0.1:5001",
 125     help="REST API endpoint of son-emu (default:http://127.0.0.1:5001)")
 126
 127 def main(argv):
 128     args = vars(parser.parse_args(argv))
 129     c = RestApiClient()
 130     c.execute_command(args)