src/emuvim/api/openstack/openstack_api_endpoint.py

   1 """
   2 Copyright (c) 2017 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, Paderborn University
  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 manage import OpenstackManage
  29 from openstack_dummies import *
  30 import logging
  31 import threading
  32 import compute
  33 import requests
  34 import socket
  35 import time
  36
  37
  38 class OpenstackApiEndpoint():
  39     """
  40     Base class for an OpenStack datacenter.
  41     It holds information about all connected endpoints.
  42     """
  43     dc_apis = []
  44
  45     def __init__(self, listenip, port):
  46         self.ip = listenip
  47         self.port = port
  48         self.compute = compute.OpenstackCompute()
  49         self.openstack_endpoints = dict()
  50         self.openstack_endpoints['keystone'] = KeystoneDummyApi(self.ip, self.port)
  51         self.openstack_endpoints['neutron'] = NeutronDummyApi(self.ip, self.port + 4696, self.compute)
  52         self.openstack_endpoints['nova'] = NovaDummyApi(self.ip, self.port + 3774, self.compute)
  53         self.openstack_endpoints['heat'] = HeatDummyApi(self.ip, self.port + 3004, self.compute)
  54         self.openstack_endpoints['glance'] = GlanceDummyApi(self.ip, self.port + 4242, self.compute)
  55
  56         self.rest_threads = list()
  57         self.manage = OpenstackManage()
  58         self.manage.add_endpoint(self)
  59         OpenstackApiEndpoint.dc_apis.append(self)
  60
  61     def connect_datacenter(self, dc):
  62         """
  63         Connect a datacenter to this endpoint.
  64         An endpoint can only be connected to a single datacenter.
  65
  66         :param dc: Datacenter object
  67         :type dc: :class:`dc`
  68         """
  69         self.compute.dc = dc
  70         for ep in self.openstack_endpoints.values():
  71             ep.manage = self.manage
  72         logging.info \
  73             ("Connected DC(%s) to API endpoint %s(%s:%d)" % (dc.label, self.__class__.__name__, self.ip, self.port))
  74
  75     def connect_dc_network(self, dc_network):
  76         """
  77         Connect the datacenter network to the endpoint.
  78
  79         :param dc_network: Datacenter network reference
  80         :type dc_network: :class:`.net`
  81         """
  82         self.manage.net = dc_network
  83         self.compute.nets[self.manage.floating_network.id] = self.manage.floating_network
  84         logging.info("Connected DCNetwork to API endpoint %s(%s:%d)" % (
  85             self.__class__.__name__, self.ip, self.port))
  86
  87     def start(self, wait_for_port=False):
  88         """
  89         Start all connected OpenStack endpoints that are connected to this API endpoint.
  90         """
  91         for component in self.openstack_endpoints.values():
  92             component.compute = self.compute
  93             component.manage = self.manage
  94             thread = threading.Thread(target=component._start_flask, args=())
  95             thread.daemon = True
  96             thread.name = component.__class__
  97             thread.start()
  98             if wait_for_port:
  99                 self._wait_for_port(component.ip, component.port)
 100
 101
 102     def stop(self):
 103         """
 104         Stop all connected OpenStack endpoints that are connected to this API endpoint.
 105         """
 106         for component in self.openstack_endpoints.values():
 107             url = "http://" + component.ip + ":" + str(component.port) + "/shutdown"
 108             try:
 109                 requests.get(url)
 110             except:
 111                 # seems to be stopped
 112                 pass
 113
 114     def _wait_for_port(self, ip, port):
 115         for i in range(0, 10):
 116             s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 117             s.settimeout(1)  # 1 Second Timeout
 118             r = s.connect_ex((ip, port))
 119             if r == 0:
 120                 break  # port is open proceed
 121             else:
 122                 logging.warning("Waiting for {}:{} ... ({}/10)".format(ip, port, i + 1))
 123             time.sleep(1)