src/emuvim/cli/rest/compute.py

   1 """
   2 Copyright (c) 2015 SONATA-NFV and Paderborn University
   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
  34 pp = pprint.PrettyPrinter(indent=4)
  35
  36
  37 class RestApiClient():
  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 start(self, args):
  49
  50         req = {'image': args.get("image"),
  51                'command': args.get("docker_command"),
  52                'network': args.get("network")}
  53
  54         response = put("%s/restapi/compute/%s/%s" %
  55                        (args.get("endpoint"),
  56                         args.get("datacenter"),
  57                         args.get("name")),
  58                        json=req)
  59
  60         pp.pprint(response.json())
  61
  62     def stop(self, args):
  63
  64         response = delete("%s/restapi/compute/%s/%s" %
  65                           (args.get("endpoint"),
  66                            args.get("datacenter"),
  67                            args.get("name")))
  68         pp.pprint(response.json())
  69
  70     def list(self, args):
  71
  72         list = get('%s/restapi/compute/%s' % (args.get("endpoint"), args.get('datacenter'))).json()
  73
  74         table = []
  75         for c in list:
  76             # for each container add a line to the output table
  77             if len(c) > 1:
  78                 name = c[0]
  79                 status = c[1]
  80                 eth0ip = None
  81                 eth0status = "down"
  82                 if len(status.get("network")) > 0:
  83                     eth0ip = status.get("network")[0].get("ip")
  84                     eth0status = "up" if status.get(
  85                         "network")[0].get("up") else "down"
  86                 table.append([status.get("datacenter"),
  87                               name,
  88                               status.get("image"),
  89                               eth0ip,
  90                               eth0status,
  91                               status.get("state").get("Status")])
  92
  93         headers = ["Datacenter",
  94                    "Container",
  95                    "Image",
  96                    "eth0 IP",
  97                    "eth0 status",
  98                    "Status"]
  99         print(tabulate(table, headers=headers, tablefmt="grid"))
 100
 101     def status(self, args):
 102
 103         list = get("%s/restapi/compute/%s/%s" %
 104                    (args.get("endpoint"),
 105                     args.get("datacenter"),
 106                     args.get("name"))).json()
 107
 108         pp.pprint(list)
 109
 110
 111 parser = argparse.ArgumentParser(description='son-emu compute')
 112 parser.add_argument(
 113     "command",
 114     choices=['start', 'stop', 'list', 'status'],
 115     help="Action to be executed.")
 116 parser.add_argument(
 117     "--datacenter", "-d", dest="datacenter",
 118     help="Data center to which the command should be applied.")
 119 parser.add_argument(
 120     "--name", "-n", dest="name",
 121     help="Name of compute instance e.g. 'vnf1'.")
 122 parser.add_argument(
 123     "--image", "-i", dest="image",
 124     help="Name of container image to be used e.g. 'ubuntu:trusty'")
 125 parser.add_argument(
 126     "--dcmd", "-c", dest="docker_command",
 127     help="Startup command of the container e.g. './start.sh'")
 128 parser.add_argument(
 129     "--net", dest="network",
 130     help="Network properties of a compute instance e.g. \
 131           '(id=input,ip=10.0.10.3/24),(id=output,ip=10.0.10.4/24)' for multiple interfaces.")
 132 parser.add_argument(
 133     "--endpoint", "-e", dest="endpoint",
 134     default="http://127.0.0.1:5001",
 135     help="UUID of the plugin to be manipulated.")
 136
 137
 138 def main(argv):
 139     args = vars(parser.parse_args(argv))
 140     c = RestApiClient()
 141     c.execute_command(args)