osm_ro/vimconn_openstack.py

   1 # -*- coding: utf-8 -*-
   2
   3 ##
   4 # Copyright 2015 Telefónica Investigación y Desarrollo, S.A.U.
   5 # This file is part of openmano
   6 # All Rights Reserved.
   7 #
   8 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   9 # not use this file except in compliance with the License. You may obtain
  10 # a copy of the License at
  11 #
  12 #         http://www.apache.org/licenses/LICENSE-2.0
  13 #
  14 # Unless required by applicable law or agreed to in writing, software
  15 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  16 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  17 # License for the specific language governing permissions and limitations
  18 # under the License.
  19 #
  20 # For those usages not covered by the Apache License, Version 2.0 please
  21 # contact with: nfvlabs@tid.es
  22 ##
  23
  24 '''
  25 osconnector implements all the methods to interact with openstack using the python-neutronclient.
  26
  27 For the VNF forwarding graph, The OpenStack VIM connector calls the
  28 networking-sfc Neutron extension methods, whose resources are mapped
  29 to the VIM connector's SFC resources as follows:
  30 - Classification (OSM) -> Flow Classifier (Neutron)
  31 - Service Function Instance (OSM) -> Port Pair (Neutron)
  32 - Service Function (OSM) -> Port Pair Group (Neutron)
  33 - Service Function Path (OSM) -> Port Chain (Neutron)
  34 '''
  35 __author__ = "Alfonso Tierno, Gerardo Garcia, Pablo Montes, xFlow Research, Igor D.C."
  36 __date__  = "$22-sep-2017 23:59:59$"
  37
  38 import vimconn
  39 import json
  40 import logging
  41 import netaddr
  42 import time
  43 import yaml
  44 import random
  45 import re
  46 import copy
  47
  48 from novaclient import client as nClient, exceptions as nvExceptions
  49 from keystoneauth1.identity import v2, v3
  50 from keystoneauth1 import session
  51 import keystoneclient.exceptions as ksExceptions
  52 import keystoneclient.v3.client as ksClient_v3
  53 import keystoneclient.v2_0.client as ksClient_v2
  54 from glanceclient import client as glClient
  55 import glanceclient.client as gl1Client
  56 import glanceclient.exc as gl1Exceptions
  57 from  cinderclient import client as cClient
  58 from httplib import HTTPException
  59 from neutronclient.neutron import client as neClient
  60 from neutronclient.common import exceptions as neExceptions
  61 from requests.exceptions import ConnectionError
  62
  63
  64 """contain the openstack virtual machine status to openmano status"""
  65 vmStatus2manoFormat={'ACTIVE':'ACTIVE',
  66                      'PAUSED':'PAUSED',
  67                      'SUSPENDED': 'SUSPENDED',
  68                      'SHUTOFF':'INACTIVE',
  69                      'BUILD':'BUILD',
  70                      'ERROR':'ERROR','DELETED':'DELETED'
  71                      }
  72 netStatus2manoFormat={'ACTIVE':'ACTIVE','PAUSED':'PAUSED','INACTIVE':'INACTIVE','BUILD':'BUILD','ERROR':'ERROR','DELETED':'DELETED'
  73                      }
  74
  75 supportedClassificationTypes = ['legacy_flow_classifier']
  76
  77 #global var to have a timeout creating and deleting volumes
  78 volume_timeout = 60
  79 server_timeout = 300
  80
  81 class vimconnector(vimconn.vimconnector):
  82     def __init__(self, uuid, name, tenant_id, tenant_name, url, url_admin=None, user=None, passwd=None,
  83                  log_level=None, config={}, persistent_info={}):
  84         '''using common constructor parameters. In this case
  85         'url' is the keystone authorization url,
  86         'url_admin' is not use
  87         '''
  88         api_version = config.get('APIversion')
  89         if api_version and api_version not in ('v3.3', 'v2.0', '2', '3'):
  90             raise vimconn.vimconnException("Invalid value '{}' for config:APIversion. "
  91                                            "Allowed values are 'v3.3', 'v2.0', '2' or '3'".format(api_version))
  92         vim_type = config.get('vim_type')
  93         if vim_type and vim_type not in ('vio', 'VIO'):
  94             raise vimconn.vimconnException("Invalid value '{}' for config:vim_type."
  95                             "Allowed values are 'vio' or 'VIO'".format(vim_type))
  96
  97         if config.get('dataplane_net_vlan_range') is not None:
  98             #validate vlan ranges provided by user
  99             self._validate_vlan_ranges(config.get('dataplane_net_vlan_range'))
 100
 101         vimconn.vimconnector.__init__(self, uuid, name, tenant_id, tenant_name, url, url_admin, user, passwd, log_level,
 102                                       config)
 103
 104         self.insecure = self.config.get("insecure", False)
 105         if not url:
 106             raise TypeError('url param can not be NoneType')
 107         self.persistent_info = persistent_info
 108         self.availability_zone = persistent_info.get('availability_zone', None)
 109         self.session = persistent_info.get('session', {'reload_client': True})
 110         self.nova = self.session.get('nova')
 111         self.neutron = self.session.get('neutron')
 112         self.cinder = self.session.get('cinder')
 113         self.glance = self.session.get('glance')
 114         self.glancev1 = self.session.get('glancev1')
 115         self.keystone = self.session.get('keystone')
 116         self.api_version3 = self.session.get('api_version3')
 117         self.vim_type = self.config.get("vim_type")
 118         if self.vim_type:
 119             self.vim_type = self.vim_type.upper()
 120         if self.config.get("use_internal_endpoint"):
 121             self.endpoint_type = "internalURL"
 122         else:
 123             self.endpoint_type = None
 124
 125         self.logger = logging.getLogger('openmano.vim.openstack')
 126
 127         ####### VIO Specific Changes #########
 128         if self.vim_type == "VIO":
 129             self.logger = logging.getLogger('openmano.vim.vio')
 130
 131         if log_level:
 132             self.logger.setLevel( getattr(logging, log_level))
 133
 134     def __getitem__(self, index):
 135         """Get individuals parameters.
 136         Throw KeyError"""
 137         if index == 'project_domain_id':
 138             return self.config.get("project_domain_id")
 139         elif index == 'user_domain_id':
 140             return self.config.get("user_domain_id")
 141         else:
 142             return vimconn.vimconnector.__getitem__(self, index)
 143
 144     def __setitem__(self, index, value):
 145         """Set individuals parameters and it is marked as dirty so to force connection reload.
 146         Throw KeyError"""
 147         if index == 'project_domain_id':
 148             self.config["project_domain_id"] = value
 149         elif index == 'user_domain_id':
 150                 self.config["user_domain_id"] = value
 151         else:
 152             vimconn.vimconnector.__setitem__(self, index, value)
 153         self.session['reload_client'] = True
 154
 155     def _reload_connection(self):
 156         '''Called before any operation, it check if credentials has changed
 157         Throw keystoneclient.apiclient.exceptions.AuthorizationFailure
 158         '''
 159         #TODO control the timing and possible token timeout, but it seams that python client does this task for us :-)
 160         if self.session['reload_client']:
 161             if self.config.get('APIversion'):
 162                 self.api_version3 = self.config['APIversion'] == 'v3.3' or self.config['APIversion'] == '3'
 163             else:  # get from ending auth_url that end with v3 or with v2.0
 164                 self.api_version3 =  self.url.endswith("/v3") or self.url.endswith("/v3/")
 165             self.session['api_version3'] = self.api_version3
 166             if self.api_version3:
 167                 if self.config.get('project_domain_id') or self.config.get('project_domain_name'):
 168                     project_domain_id_default = None
 169                 else:
 170                     project_domain_id_default = 'default'
 171                 if self.config.get('user_domain_id') or self.config.get('user_domain_name'):
 172                     user_domain_id_default = None
 173                 else:
 174                     user_domain_id_default = 'default'
 175                 auth = v3.Password(auth_url=self.url,
 176                                    username=self.user,
 177                                    password=self.passwd,
 178                                    project_name=self.tenant_name,
 179                                    project_id=self.tenant_id,
 180                                    project_domain_id=self.config.get('project_domain_id', project_domain_id_default),
 181                                    user_domain_id=self.config.get('user_domain_id', user_domain_id_default),
 182                                    project_domain_name=self.config.get('project_domain_name'),
 183                                    user_domain_name=self.config.get('user_domain_name'))
 184             else:
 185                 auth = v2.Password(auth_url=self.url,
 186                                    username=self.user,
 187                                    password=self.passwd,
 188                                    tenant_name=self.tenant_name,
 189                                    tenant_id=self.tenant_id)
 190             sess = session.Session(auth=auth, verify=not self.insecure)
 191             if self.api_version3:
 192                 self.keystone = ksClient_v3.Client(session=sess, endpoint_type=self.endpoint_type)
 193             else:
 194                 self.keystone = ksClient_v2.Client(session=sess, endpoint_type=self.endpoint_type)
 195             self.session['keystone'] = self.keystone
 196             # In order to enable microversion functionality an explicit microversion must be specified in 'config'.
 197             # This implementation approach is due to the warning message in
 198             # https://developer.openstack.org/api-guide/compute/microversions.html
 199             # where it is stated that microversion backwards compatibility is not guaranteed and clients should
 200             # always require an specific microversion.
 201             # To be able to use 'device role tagging' functionality define 'microversion: 2.32' in datacenter config
 202             version = self.config.get("microversion")
 203             if not version:
 204                 version = "2.1"
 205             self.nova = self.session['nova'] = nClient.Client(str(version), session=sess, endpoint_type=self.endpoint_type)
 206             self.neutron = self.session['neutron'] = neClient.Client('2.0', session=sess, endpoint_type=self.endpoint_type)
 207             self.cinder = self.session['cinder'] = cClient.Client(2, session=sess, endpoint_type=self.endpoint_type)
 208             if self.endpoint_type == "internalURL":
 209                 glance_service_id = self.keystone.services.list(name="glance")[0].id
 210                 glance_endpoint = self.keystone.endpoints.list(glance_service_id, interface="internal")[0].url
 211             else:
 212                 glance_endpoint = None
 213             self.glance = self.session['glance'] = glClient.Client(2, session=sess, endpoint=glance_endpoint)
 214             #using version 1 of glance client in new_image()
 215             self.glancev1 = self.session['glancev1'] = glClient.Client('1', session=sess,
 216                                                                        endpoint=glance_endpoint)
 217             self.session['reload_client'] = False
 218             self.persistent_info['session'] = self.session
 219             # add availablity zone info inside  self.persistent_info
 220             self._set_availablity_zones()
 221             self.persistent_info['availability_zone'] = self.availability_zone
 222
 223     def __net_os2mano(self, net_list_dict):
 224         '''Transform the net openstack format to mano format
 225         net_list_dict can be a list of dict or a single dict'''
 226         if type(net_list_dict) is dict:
 227             net_list_=(net_list_dict,)
 228         elif type(net_list_dict) is list:
 229             net_list_=net_list_dict
 230         else:
 231             raise TypeError("param net_list_dict must be a list or a dictionary")
 232         for net in net_list_:
 233             if net.get('provider:network_type') == "vlan":
 234                 net['type']='data'
 235             else:
 236                 net['type']='bridge'
 237
 238     def __classification_os2mano(self, class_list_dict):
 239         """Transform the openstack format (Flow Classifier) to mano format
 240         (Classification) class_list_dict can be a list of dict or a single dict
 241         """
 242         if isinstance(class_list_dict, dict):
 243             class_list_ = [class_list_dict]
 244         elif isinstance(class_list_dict, list):
 245             class_list_ = class_list_dict
 246         else:
 247             raise TypeError(
 248                 "param class_list_dict must be a list or a dictionary")
 249         for classification in class_list_:
 250             id = classification.pop('id')
 251             name = classification.pop('name')
 252             description = classification.pop('description')
 253             project_id = classification.pop('project_id')
 254             tenant_id = classification.pop('tenant_id')
 255             original_classification = copy.deepcopy(classification)
 256             classification.clear()
 257             classification['ctype'] = 'legacy_flow_classifier'
 258             classification['definition'] = original_classification
 259             classification['id'] = id
 260             classification['name'] = name
 261             classification['description'] = description
 262             classification['project_id'] = project_id
 263             classification['tenant_id'] = tenant_id
 264
 265     def __sfi_os2mano(self, sfi_list_dict):
 266         """Transform the openstack format (Port Pair) to mano format (SFI)
 267         sfi_list_dict can be a list of dict or a single dict
 268         """
 269         if isinstance(sfi_list_dict, dict):
 270             sfi_list_ = [sfi_list_dict]
 271         elif isinstance(sfi_list_dict, list):
 272             sfi_list_ = sfi_list_dict
 273         else:
 274             raise TypeError(
 275                 "param sfi_list_dict must be a list or a dictionary")
 276         for sfi in sfi_list_:
 277             sfi['ingress_ports'] = []
 278             sfi['egress_ports'] = []
 279             if sfi.get('ingress'):
 280                 sfi['ingress_ports'].append(sfi['ingress'])
 281             if sfi.get('egress'):
 282                 sfi['egress_ports'].append(sfi['egress'])
 283             del sfi['ingress']
 284             del sfi['egress']
 285             params = sfi.get('service_function_parameters')
 286             sfc_encap = False
 287             if params:
 288                 correlation = params.get('correlation')
 289                 if correlation:
 290                     sfc_encap = True
 291             sfi['sfc_encap'] = sfc_encap
 292             del sfi['service_function_parameters']
 293
 294     def __sf_os2mano(self, sf_list_dict):
 295         """Transform the openstack format (Port Pair Group) to mano format (SF)
 296         sf_list_dict can be a list of dict or a single dict
 297         """
 298         if isinstance(sf_list_dict, dict):
 299             sf_list_ = [sf_list_dict]
 300         elif isinstance(sf_list_dict, list):
 301             sf_list_ = sf_list_dict
 302         else:
 303             raise TypeError(
 304                 "param sf_list_dict must be a list or a dictionary")
 305         for sf in sf_list_:
 306             del sf['port_pair_group_parameters']
 307             sf['sfis'] = sf['port_pairs']
 308             del sf['port_pairs']
 309
 310     def __sfp_os2mano(self, sfp_list_dict):
 311         """Transform the openstack format (Port Chain) to mano format (SFP)
 312         sfp_list_dict can be a list of dict or a single dict
 313         """
 314         if isinstance(sfp_list_dict, dict):
 315             sfp_list_ = [sfp_list_dict]
 316         elif isinstance(sfp_list_dict, list):
 317             sfp_list_ = sfp_list_dict
 318         else:
 319             raise TypeError(
 320                 "param sfp_list_dict must be a list or a dictionary")
 321         for sfp in sfp_list_:
 322             params = sfp.pop('chain_parameters')
 323             sfc_encap = False
 324             if params:
 325                 correlation = params.get('correlation')
 326                 if correlation:
 327                     sfc_encap = True
 328             sfp['sfc_encap'] = sfc_encap
 329             sfp['spi'] = sfp.pop('chain_id')
 330             sfp['classifications'] = sfp.pop('flow_classifiers')
 331             sfp['service_functions'] = sfp.pop('port_pair_groups')
 332
 333     # placeholder for now; read TODO note below
 334     def _validate_classification(self, type, definition):
 335         # only legacy_flow_classifier Type is supported at this point
 336         return True
 337         # TODO(igordcard): this method should be an abstract method of an
 338         # abstract Classification class to be implemented by the specific
 339         # Types. Also, abstract vimconnector should call the validation
 340         # method before the implemented VIM connectors are called.
 341
 342     def _format_exception(self, exception):
 343         '''Transform a keystone, nova, neutron  exception into a vimconn exception'''
 344         if isinstance(exception, (HTTPException, gl1Exceptions.HTTPException, gl1Exceptions.CommunicationError,
 345                                   ConnectionError, ksExceptions.ConnectionError, neExceptions.ConnectionFailed
 346                                   )):
 347             raise vimconn.vimconnConnectionException(type(exception).__name__ + ": " + str(exception))
 348         elif isinstance(exception, (nvExceptions.ClientException, ksExceptions.ClientException,
 349                                     neExceptions.NeutronException, nvExceptions.BadRequest)):
 350             raise vimconn.vimconnUnexpectedResponse(type(exception).__name__ + ": " + str(exception))
 351         elif isinstance(exception, (neExceptions.NetworkNotFoundClient, nvExceptions.NotFound)):
 352             raise vimconn.vimconnNotFoundException(type(exception).__name__ + ": " + str(exception))
 353         elif isinstance(exception, nvExceptions.Conflict):
 354             raise vimconn.vimconnConflictException(type(exception).__name__ + ": " + str(exception))
 355         elif isinstance(exception, vimconn.vimconnException):
 356             raise
 357         else:  # ()
 358             self.logger.error("General Exception " + str(exception), exc_info=True)
 359             raise vimconn.vimconnConnectionException(type(exception).__name__ + ": " + str(exception))
 360
 361     def get_tenant_list(self, filter_dict={}):
 362         '''Obtain tenants of VIM
 363         filter_dict can contain the following keys:
 364             name: filter by tenant name
 365             id: filter by tenant uuid/id
 366             <other VIM specific>
 367         Returns the tenant list of dictionaries: [{'name':'<name>, 'id':'<id>, ...}, ...]
 368         '''
 369         self.logger.debug("Getting tenants from VIM filter: '%s'", str(filter_dict))
 370         try:
 371             self._reload_connection()
 372             if self.api_version3:
 373                 project_class_list = self.keystone.projects.list(name=filter_dict.get("name"))
 374             else:
 375                 project_class_list = self.keystone.tenants.findall(**filter_dict)
 376             project_list=[]
 377             for project in project_class_list:
 378                 if filter_dict.get('id') and filter_dict["id"] != project.id:
 379                     continue
 380                 project_list.append(project.to_dict())
 381             return project_list
 382         except (ksExceptions.ConnectionError, ksExceptions.ClientException, ConnectionError) as e:
 383             self._format_exception(e)
 384
 385     def new_tenant(self, tenant_name, tenant_description):
 386         '''Adds a new tenant to openstack VIM. Returns the tenant identifier'''
 387         self.logger.debug("Adding a new tenant name: %s", tenant_name)
 388         try:
 389             self._reload_connection()
 390             if self.api_version3:
 391                 project = self.keystone.projects.create(tenant_name, self.config.get("project_domain_id", "default"),
 392                                                         description=tenant_description, is_domain=False)
 393             else:
 394                 project = self.keystone.tenants.create(tenant_name, tenant_description)
 395             return project.id
 396         except (ksExceptions.ConnectionError, ksExceptions.ClientException, ConnectionError)  as e:
 397             self._format_exception(e)
 398
 399     def delete_tenant(self, tenant_id):
 400         '''Delete a tenant from openstack VIM. Returns the old tenant identifier'''
 401         self.logger.debug("Deleting tenant %s from VIM", tenant_id)
 402         try:
 403             self._reload_connection()
 404             if self.api_version3:
 405                 self.keystone.projects.delete(tenant_id)
 406             else:
 407                 self.keystone.tenants.delete(tenant_id)
 408             return tenant_id
 409         except (ksExceptions.ConnectionError, ksExceptions.ClientException, ConnectionError)  as e:
 410             self._format_exception(e)
 411
 412     def new_network(self,net_name, net_type, ip_profile=None, shared=False, vlan=None):
 413         '''Adds a tenant network to VIM. Returns the network identifier'''
 414         self.logger.debug("Adding a new network to VIM name '%s', type '%s'", net_name, net_type)
 415         #self.logger.debug(">>>>>>>>>>>>>>>>>> IP profile %s", str(ip_profile))
 416         try:
 417             new_net = None
 418             self._reload_connection()
 419             network_dict = {'name': net_name, 'admin_state_up': True}
 420             if net_type=="data" or net_type=="ptp":
 421                 if self.config.get('dataplane_physical_net') == None:
 422                     raise vimconn.vimconnConflictException("You must provide a 'dataplane_physical_net' at config value before creating sriov network")
 423                 network_dict["provider:physical_network"] = self.config['dataplane_physical_net'] #"physnet_sriov" #TODO physical
 424                 network_dict["provider:network_type"]     = "vlan"
 425                 if vlan!=None:
 426                     network_dict["provider:network_type"] = vlan
 427
 428                 ####### VIO Specific Changes #########
 429                 if self.vim_type == "VIO":
 430                     if vlan is not None:
 431                         network_dict["provider:segmentation_id"] = vlan
 432                     else:
 433                         if self.config.get('dataplane_net_vlan_range') is None:
 434                             raise vimconn.vimconnConflictException("You must provide "\
 435                                 "'dataplane_net_vlan_range' in format [start_ID - end_ID]"\
 436                                 "at config value before creating sriov network with vlan tag")
 437
 438                         network_dict["provider:segmentation_id"] = self._genrate_vlanID()
 439
 440             network_dict["shared"]=shared
 441             new_net=self.neutron.create_network({'network':network_dict})
 442             #print new_net
 443             #create subnetwork, even if there is no profile
 444             if not ip_profile:
 445                 ip_profile = {}
 446             if 'subnet_address' not in ip_profile:
 447                 #Fake subnet is required
 448                 subnet_rand = random.randint(0, 255)
 449                 ip_profile['subnet_address'] = "192.168.{}.0/24".format(subnet_rand)
 450             if 'ip_version' not in ip_profile:
 451                 ip_profile['ip_version'] = "IPv4"
 452             subnet = {"name":net_name+"-subnet",
 453                     "network_id": new_net["network"]["id"],
 454                     "ip_version": 4 if ip_profile['ip_version']=="IPv4" else 6,
 455                     "cidr": ip_profile['subnet_address']
 456                     }
 457             # Gateway should be set to None if not needed. Otherwise openstack assigns one by default
 458             subnet['gateway_ip'] = ip_profile.get('gateway_address')
 459             if ip_profile.get('dns_address'):
 460                 subnet['dns_nameservers'] = ip_profile['dns_address'].split(";")
 461             if 'dhcp_enabled' in ip_profile:
 462                 subnet['enable_dhcp'] = False if ip_profile['dhcp_enabled']=="false" else True
 463             if 'dhcp_start_address' in ip_profile:
 464                 subnet['allocation_pools'] = []
 465                 subnet['allocation_pools'].append(dict())
 466                 subnet['allocation_pools'][0]['start'] = ip_profile['dhcp_start_address']
 467             if 'dhcp_count' in ip_profile:
 468                 #parts = ip_profile['dhcp_start_address'].split('.')
 469                 #ip_int = (int(parts[0]) << 24) + (int(parts[1]) << 16) + (int(parts[2]) << 8) + int(parts[3])
 470                 ip_int = int(netaddr.IPAddress(ip_profile['dhcp_start_address']))
 471                 ip_int += ip_profile['dhcp_count'] - 1
 472                 ip_str = str(netaddr.IPAddress(ip_int))
 473                 subnet['allocation_pools'][0]['end'] = ip_str
 474             #self.logger.debug(">>>>>>>>>>>>>>>>>> Subnet: %s", str(subnet))
 475             self.neutron.create_subnet({"subnet": subnet} )
 476             return new_net["network"]["id"]
 477         except (neExceptions.ConnectionFailed, ksExceptions.ClientException, neExceptions.NeutronException, ConnectionError) as e:
 478             if new_net:
 479                 self.neutron.delete_network(new_net['network']['id'])
 480             self._format_exception(e)
 481
 482     def get_network_list(self, filter_dict={}):
 483         '''Obtain tenant networks of VIM
 484         Filter_dict can be:
 485             name: network name
 486             id: network uuid
 487             shared: boolean
 488             tenant_id: tenant
 489             admin_state_up: boolean
 490             status: 'ACTIVE'
 491         Returns the network list of dictionaries
 492         '''
 493         self.logger.debug("Getting network from VIM filter: '%s'", str(filter_dict))
 494         try:
 495             self._reload_connection()
 496             if self.api_version3 and "tenant_id" in filter_dict:
 497                 filter_dict['project_id'] = filter_dict.pop('tenant_id') #TODO check
 498             net_dict=self.neutron.list_networks(**filter_dict)
 499             net_list=net_dict["networks"]
 500             self.__net_os2mano(net_list)
 501             return net_list
 502         except (neExceptions.ConnectionFailed, ksExceptions.ClientException, neExceptions.NeutronException, ConnectionError) as e:
 503             self._format_exception(e)
 504
 505     def get_network(self, net_id):
 506         '''Obtain details of network from VIM
 507         Returns the network information from a network id'''
 508         self.logger.debug(" Getting tenant network %s from VIM", net_id)
 509         filter_dict={"id": net_id}
 510         net_list = self.get_network_list(filter_dict)
 511         if len(net_list)==0:
 512             raise vimconn.vimconnNotFoundException("Network '{}' not found".format(net_id))
 513         elif len(net_list)>1:
 514             raise vimconn.vimconnConflictException("Found more than one network with this criteria")
 515         net = net_list[0]
 516         subnets=[]
 517         for subnet_id in net.get("subnets", () ):
 518             try:
 519                 subnet = self.neutron.show_subnet(subnet_id)
 520             except Exception as e:
 521                 self.logger.error("osconnector.get_network(): Error getting subnet %s %s" % (net_id, str(e)))
 522                 subnet = {"id": subnet_id, "fault": str(e)}
 523             subnets.append(subnet)
 524         net["subnets"] = subnets
 525         net["encapsulation"] = net.get('provider:network_type')
 526         net["segmentation_id"] = net.get('provider:segmentation_id')
 527         return net
 528
 529     def delete_network(self, net_id):
 530         '''Deletes a tenant network from VIM. Returns the old network identifier'''
 531         self.logger.debug("Deleting network '%s' from VIM", net_id)
 532         try:
 533             self._reload_connection()
 534             #delete VM ports attached to this networks before the network
 535             ports = self.neutron.list_ports(network_id=net_id)
 536             for p in ports['ports']:
 537                 try:
 538                     self.neutron.delete_port(p["id"])
 539                 except Exception as e:
 540                     self.logger.error("Error deleting port %s: %s", p["id"], str(e))
 541             self.neutron.delete_network(net_id)
 542             return net_id
 543         except (neExceptions.ConnectionFailed, neExceptions.NetworkNotFoundClient, neExceptions.NeutronException,
 544                 ksExceptions.ClientException, neExceptions.NeutronException, ConnectionError) as e:
 545             self._format_exception(e)
 546
 547     def refresh_nets_status(self, net_list):
 548         '''Get the status of the networks
 549            Params: the list of network identifiers
 550            Returns a dictionary with:
 551                 net_id:         #VIM id of this network
 552                     status:     #Mandatory. Text with one of:
 553                                 #  DELETED (not found at vim)
 554                                 #  VIM_ERROR (Cannot connect to VIM, VIM response error, ...)
 555                                 #  OTHER (Vim reported other status not understood)
 556                                 #  ERROR (VIM indicates an ERROR status)
 557                                 #  ACTIVE, INACTIVE, DOWN (admin down),
 558                                 #  BUILD (on building process)
 559                                 #
 560                     error_msg:  #Text with VIM error message, if any. Or the VIM connection ERROR
 561                     vim_info:   #Text with plain information obtained from vim (yaml.safe_dump)
 562
 563         '''
 564         net_dict={}
 565         for net_id in net_list:
 566             net = {}
 567             try:
 568                 net_vim = self.get_network(net_id)
 569                 if net_vim['status'] in netStatus2manoFormat:
 570                     net["status"] = netStatus2manoFormat[ net_vim['status'] ]
 571                 else:
 572                     net["status"] = "OTHER"
 573                     net["error_msg"] = "VIM status reported " + net_vim['status']
 574
 575                 if net['status'] == "ACTIVE" and not net_vim['admin_state_up']:
 576                     net['status'] = 'DOWN'
 577                 try:
 578                     net['vim_info'] = yaml.safe_dump(net_vim, default_flow_style=True, width=256)
 579                 except yaml.representer.RepresenterError:
 580                     net['vim_info'] = str(net_vim)
 581                 if net_vim.get('fault'):  #TODO
 582                     net['error_msg'] = str(net_vim['fault'])
 583             except vimconn.vimconnNotFoundException as e:
 584                 self.logger.error("Exception getting net status: %s", str(e))
 585                 net['status'] = "DELETED"
 586                 net['error_msg'] = str(e)
 587             except vimconn.vimconnException as e:
 588                 self.logger.error("Exception getting net status: %s", str(e))
 589                 net['status'] = "VIM_ERROR"
 590                 net['error_msg'] = str(e)
 591             net_dict[net_id] = net
 592         return net_dict
 593
 594     def get_flavor(self, flavor_id):
 595         '''Obtain flavor details from the  VIM. Returns the flavor dict details'''
 596         self.logger.debug("Getting flavor '%s'", flavor_id)
 597         try:
 598             self._reload_connection()
 599             flavor = self.nova.flavors.find(id=flavor_id)
 600             #TODO parse input and translate to VIM format (openmano_schemas.new_vminstance_response_schema)
 601             return flavor.to_dict()
 602         except (nvExceptions.NotFound, nvExceptions.ClientException, ksExceptions.ClientException, ConnectionError) as e:
 603             self._format_exception(e)
 604
 605     def get_flavor_id_from_data(self, flavor_dict):
 606         """Obtain flavor id that match the flavor description
 607            Returns the flavor_id or raises a vimconnNotFoundException
 608            flavor_dict: contains the required ram, vcpus, disk
 609            If 'use_existing_flavors' is set to True at config, the closer flavor that provides same or more ram, vcpus
 610                 and disk is returned. Otherwise a flavor with exactly same ram, vcpus and disk is returned or a
 611                 vimconnNotFoundException is raised
 612         """
 613         exact_match = False if self.config.get('use_existing_flavors') else True
 614         try:
 615             self._reload_connection()
 616             flavor_candidate_id = None
 617             flavor_candidate_data = (10000, 10000, 10000)
 618             flavor_target = (flavor_dict["ram"], flavor_dict["vcpus"], flavor_dict["disk"])
 619             # numa=None
 620             numas = flavor_dict.get("extended", {}).get("numas")
 621             if numas:
 622                 #TODO
 623                 raise vimconn.vimconnNotFoundException("Flavor with EPA still not implemted")
 624                 # if len(numas) > 1:
 625                 #     raise vimconn.vimconnNotFoundException("Cannot find any flavor with more than one numa")
 626                 # numa=numas[0]
 627                 # numas = extended.get("numas")
 628             for flavor in self.nova.flavors.list():
 629                 epa = flavor.get_keys()
 630                 if epa:
 631                     continue
 632                     # TODO
 633                 flavor_data = (flavor.ram, flavor.vcpus, flavor.disk)
 634                 if flavor_data == flavor_target:
 635                     return flavor.id
 636                 elif not exact_match and flavor_target < flavor_data < flavor_candidate_data:
 637                     flavor_candidate_id = flavor.id
 638                     flavor_candidate_data = flavor_data
 639             if not exact_match and flavor_candidate_id:
 640                 return flavor_candidate_id
 641             raise vimconn.vimconnNotFoundException("Cannot find any flavor matching '{}'".format(str(flavor_dict)))
 642         except (nvExceptions.NotFound, nvExceptions.ClientException, ksExceptions.ClientException, ConnectionError) as e:
 643             self._format_exception(e)
 644
 645     def new_flavor(self, flavor_data, change_name_if_used=True):
 646         '''Adds a tenant flavor to openstack VIM
 647         if change_name_if_used is True, it will change name in case of conflict, because it is not supported name repetition
 648         Returns the flavor identifier
 649         '''
 650         self.logger.debug("Adding flavor '%s'", str(flavor_data))
 651         retry=0
 652         max_retries=3
 653         name_suffix = 0
 654         name=flavor_data['name']
 655         while retry<max_retries:
 656             retry+=1
 657             try:
 658                 self._reload_connection()
 659                 if change_name_if_used:
 660                     #get used names
 661                     fl_names=[]
 662                     fl=self.nova.flavors.list()
 663                     for f in fl:
 664                         fl_names.append(f.name)
 665                     while name in fl_names:
 666                         name_suffix += 1
 667                         name = flavor_data['name']+"-" + str(name_suffix)
 668
 669                 ram = flavor_data.get('ram',64)
 670                 vcpus = flavor_data.get('vcpus',1)
 671                 numa_properties=None
 672
 673                 extended = flavor_data.get("extended")
 674                 if extended:
 675                     numas=extended.get("numas")
 676                     if numas:
 677                         numa_nodes = len(numas)
 678                         if numa_nodes > 1:
 679                             return -1, "Can not add flavor with more than one numa"
 680                         numa_properties = {"hw:numa_nodes":str(numa_nodes)}
 681                         numa_properties["hw:mem_page_size"] = "large"
 682                         numa_properties["hw:cpu_policy"] = "dedicated"
 683                         numa_properties["hw:numa_mempolicy"] = "strict"
 684                         if self.vim_type == "VIO":
 685                             numa_properties["vmware:extra_config"] = '{"numa.nodeAffinity":"0"}'
 686                             numa_properties["vmware:latency_sensitivity_level"] = "high"
 687                         for numa in numas:
 688                             #overwrite ram and vcpus
 689                             ram = numa['memory']*1024
 690                             #See for reference: https://specs.openstack.org/openstack/nova-specs/specs/mitaka/implemented/virt-driver-cpu-thread-pinning.html
 691                             if 'paired-threads' in numa:
 692                                 vcpus = numa['paired-threads']*2
 693                                 #cpu_thread_policy "require" implies that the compute node must have an STM architecture
 694                                 numa_properties["hw:cpu_thread_policy"] = "require"
 695                                 numa_properties["hw:cpu_policy"] = "dedicated"
 696                             elif 'cores' in numa:
 697                                 vcpus = numa['cores']
 698                                 # cpu_thread_policy "prefer" implies that the host must not have an SMT architecture, or a non-SMT architecture will be emulated
 699                                 numa_properties["hw:cpu_thread_policy"] = "isolate"
 700                                 numa_properties["hw:cpu_policy"] = "dedicated"
 701                             elif 'threads' in numa:
 702                                 vcpus = numa['threads']
 703                                 # cpu_thread_policy "prefer" implies that the host may or may not have an SMT architecture
 704                                 numa_properties["hw:cpu_thread_policy"] = "prefer"
 705                                 numa_properties["hw:cpu_policy"] = "dedicated"
 706                             # for interface in numa.get("interfaces",() ):
 707                             #     if interface["dedicated"]=="yes":
 708                             #         raise vimconn.vimconnException("Passthrough interfaces are not supported for the openstack connector", http_code=vimconn.HTTP_Service_Unavailable)
 709                             #     #TODO, add the key 'pci_passthrough:alias"="<label at config>:<number ifaces>"' when a way to connect it is available
 710
 711                 #create flavor
 712                 new_flavor=self.nova.flavors.create(name,
 713                                 ram,
 714                                 vcpus,
 715                                 flavor_data.get('disk',1),
 716                                 is_public=flavor_data.get('is_public', True)
 717                             )
 718                 #add metadata
 719                 if numa_properties:
 720                     new_flavor.set_keys(numa_properties)
 721                 return new_flavor.id
 722             except nvExceptions.Conflict as e:
 723                 if change_name_if_used and retry < max_retries:
 724                     continue
 725                 self._format_exception(e)
 726             #except nvExceptions.BadRequest as e:
 727             except (ksExceptions.ClientException, nvExceptions.ClientException, ConnectionError) as e:
 728                 self._format_exception(e)
 729
 730     def delete_flavor(self,flavor_id):
 731         '''Deletes a tenant flavor from openstack VIM. Returns the old flavor_id
 732         '''
 733         try:
 734             self._reload_connection()
 735             self.nova.flavors.delete(flavor_id)
 736             return flavor_id
 737         #except nvExceptions.BadRequest as e:
 738         except (nvExceptions.NotFound, ksExceptions.ClientException, nvExceptions.ClientException, ConnectionError) as e:
 739             self._format_exception(e)
 740
 741     def new_image(self,image_dict):
 742         '''
 743         Adds a tenant image to VIM. imge_dict is a dictionary with:
 744             name: name
 745             disk_format: qcow2, vhd, vmdk, raw (by default), ...
 746             location: path or URI
 747             public: "yes" or "no"
 748             metadata: metadata of the image
 749         Returns the image_id
 750         '''
 751         retry=0
 752         max_retries=3
 753         while retry<max_retries:
 754             retry+=1
 755             try:
 756                 self._reload_connection()
 757                 #determine format  http://docs.openstack.org/developer/glance/formats.html
 758                 if "disk_format" in image_dict:
 759                     disk_format=image_dict["disk_format"]
 760                 else: #autodiscover based on extension
 761                     if image_dict['location'][-6:]==".qcow2":
 762                         disk_format="qcow2"
 763                     elif image_dict['location'][-4:]==".vhd":
 764                         disk_format="vhd"
 765                     elif image_dict['location'][-5:]==".vmdk":
 766                         disk_format="vmdk"
 767                     elif image_dict['location'][-4:]==".vdi":
 768                         disk_format="vdi"
 769                     elif image_dict['location'][-4:]==".iso":
 770                         disk_format="iso"
 771                     elif image_dict['location'][-4:]==".aki":
 772                         disk_format="aki"
 773                     elif image_dict['location'][-4:]==".ari":
 774                         disk_format="ari"
 775                     elif image_dict['location'][-4:]==".ami":
 776                         disk_format="ami"
 777                     else:
 778                         disk_format="raw"
 779                 self.logger.debug("new_image: '%s' loading from '%s'", image_dict['name'], image_dict['location'])
 780                 if image_dict['location'][0:4]=="http":
 781                     new_image = self.glancev1.images.create(name=image_dict['name'], is_public=image_dict.get('public',"yes")=="yes",
 782                             container_format="bare", location=image_dict['location'], disk_format=disk_format)
 783                 else: #local path
 784                     with open(image_dict['location']) as fimage:
 785                         new_image = self.glancev1.images.create(name=image_dict['name'], is_public=image_dict.get('public',"yes")=="yes",
 786                             container_format="bare", data=fimage, disk_format=disk_format)
 787                 #insert metadata. We cannot use 'new_image.properties.setdefault'
 788                 #because nova and glance are "INDEPENDENT" and we are using nova for reading metadata
 789                 new_image_nova=self.nova.images.find(id=new_image.id)
 790                 new_image_nova.metadata.setdefault('location',image_dict['location'])
 791                 metadata_to_load = image_dict.get('metadata')
 792                 if metadata_to_load:
 793                     for k,v in yaml.load(metadata_to_load).iteritems():
 794                         new_image_nova.metadata.setdefault(k,v)
 795                 return new_image.id
 796             except (nvExceptions.Conflict, ksExceptions.ClientException, nvExceptions.ClientException) as e:
 797                 self._format_exception(e)
 798             except (HTTPException, gl1Exceptions.HTTPException, gl1Exceptions.CommunicationError, ConnectionError) as e:
 799                 if retry==max_retries:
 800                     continue
 801                 self._format_exception(e)
 802             except IOError as e:  #can not open the file
 803                 raise vimconn.vimconnConnectionException(type(e).__name__ + ": " + str(e)+ " for " + image_dict['location'],
 804                                                          http_code=vimconn.HTTP_Bad_Request)
 805
 806     def delete_image(self, image_id):
 807         '''Deletes a tenant image from openstack VIM. Returns the old id
 808         '''
 809         try:
 810             self._reload_connection()
 811             self.nova.images.delete(image_id)
 812             return image_id
 813         except (nvExceptions.NotFound, ksExceptions.ClientException, nvExceptions.ClientException, gl1Exceptions.CommunicationError, ConnectionError) as e: #TODO remove
 814             self._format_exception(e)
 815
 816     def get_image_id_from_path(self, path):
 817         '''Get the image id from image path in the VIM database. Returns the image_id'''
 818         try:
 819             self._reload_connection()
 820             images = self.nova.images.list()
 821             for image in images:
 822                 if image.metadata.get("location")==path:
 823                     return image.id
 824             raise vimconn.vimconnNotFoundException("image with location '{}' not found".format( path))
 825         except (ksExceptions.ClientException, nvExceptions.ClientException, gl1Exceptions.CommunicationError, ConnectionError) as e:
 826             self._format_exception(e)
 827
 828     def get_image_list(self, filter_dict={}):
 829         '''Obtain tenant images from VIM
 830         Filter_dict can be:
 831             id: image id
 832             name: image name
 833             checksum: image checksum
 834         Returns the image list of dictionaries:
 835             [{<the fields at Filter_dict plus some VIM specific>}, ...]
 836             List can be empty
 837         '''
 838         self.logger.debug("Getting image list from VIM filter: '%s'", str(filter_dict))
 839         try:
 840             self._reload_connection()
 841             filter_dict_os=filter_dict.copy()
 842             #First we filter by the available filter fields: name, id. The others are removed.
 843             filter_dict_os.pop('checksum',None)
 844             image_list = self.nova.images.findall(**filter_dict_os)
 845             if len(image_list) == 0:
 846                 return []
 847             #Then we filter by the rest of filter fields: checksum
 848             filtered_list = []
 849             for image in image_list:
 850                 try:
 851                     image_class = self.glance.images.get(image.id)
 852                     if 'checksum' not in filter_dict or image_class['checksum']==filter_dict.get('checksum'):
 853                         filtered_list.append(image_class.copy())
 854                 except gl1Exceptions.HTTPNotFound:
 855                     pass
 856             return filtered_list
 857         except (ksExceptions.ClientException, nvExceptions.ClientException, gl1Exceptions.CommunicationError, ConnectionError) as e:
 858             self._format_exception(e)
 859
 860     def __wait_for_vm(self, vm_id, status):
 861         """wait until vm is in the desired status and return True.
 862         If the VM gets in ERROR status, return false.
 863         If the timeout is reached generate an exception"""
 864         elapsed_time = 0
 865         while elapsed_time < server_timeout:
 866             vm_status = self.nova.servers.get(vm_id).status
 867             if vm_status == status:
 868                 return True
 869             if vm_status == 'ERROR':
 870                 return False
 871             time.sleep(1)
 872             elapsed_time += 1
 873
 874         # if we exceeded the timeout rollback
 875         if elapsed_time >= server_timeout:
 876             raise vimconn.vimconnException('Timeout waiting for instance ' + vm_id + ' to get ' + status,
 877                                            http_code=vimconn.HTTP_Request_Timeout)
 878
 879     def _get_openstack_availablity_zones(self):
 880         """
 881         Get from openstack availability zones available
 882         :return:
 883         """
 884         try:
 885             openstack_availability_zone = self.nova.availability_zones.list()
 886             openstack_availability_zone = [str(zone.zoneName) for zone in openstack_availability_zone
 887                                            if zone.zoneName != 'internal']
 888             return openstack_availability_zone
 889         except Exception as e:
 890             return None
 891
 892     def _set_availablity_zones(self):
 893         """
 894         Set vim availablity zone
 895         :return:
 896         """
 897
 898         if 'availability_zone' in self.config:
 899             vim_availability_zones = self.config.get('availability_zone')
 900             if isinstance(vim_availability_zones, str):
 901                 self.availability_zone = [vim_availability_zones]
 902             elif isinstance(vim_availability_zones, list):
 903                 self.availability_zone = vim_availability_zones
 904         else:
 905             self.availability_zone = self._get_openstack_availablity_zones()
 906
 907     def _get_vm_availability_zone(self, availability_zone_index, availability_zone_list):
 908         """
 909         Return thge availability zone to be used by the created VM.
 910         :return: The VIM availability zone to be used or None
 911         """
 912         if availability_zone_index is None:
 913             if not self.config.get('availability_zone'):
 914                 return None
 915             elif isinstance(self.config.get('availability_zone'), str):
 916                 return self.config['availability_zone']
 917             else:
 918                 # TODO consider using a different parameter at config for default AV and AV list match
 919                 return self.config['availability_zone'][0]
 920
 921         vim_availability_zones = self.availability_zone
 922         # check if VIM offer enough availability zones describe in the VNFD
 923         if vim_availability_zones and len(availability_zone_list) <= len(vim_availability_zones):
 924             # check if all the names of NFV AV match VIM AV names
 925             match_by_index = False
 926             for av in availability_zone_list:
 927                 if av not in vim_availability_zones:
 928                     match_by_index = True
 929                     break
 930             if match_by_index:
 931                 return vim_availability_zones[availability_zone_index]
 932             else:
 933                 return availability_zone_list[availability_zone_index]
 934         else:
 935             raise vimconn.vimconnConflictException("No enough availability zones at VIM for this deployment")
 936
 937     def new_vminstance(self, name, description, start, image_id, flavor_id, net_list, cloud_config=None, disk_list=None,
 938                        availability_zone_index=None, availability_zone_list=None):
 939         """Adds a VM instance to VIM
 940         Params:
 941             start: indicates if VM must start or boot in pause mode. Ignored
 942             image_id,flavor_id: iamge and flavor uuid
 943             net_list: list of interfaces, each one is a dictionary with:
 944                 name:
 945                 net_id: network uuid to connect
 946                 vpci: virtual vcpi to assign, ignored because openstack lack #TODO
 947                 model: interface model, ignored #TODO
 948                 mac_address: used for  SR-IOV ifaces #TODO for other types
 949                 use: 'data', 'bridge',  'mgmt'
 950                 type: 'virtual', 'PF', 'VF', 'VFnotShared'
 951                 vim_id: filled/added by this function
 952                 floating_ip: True/False (or it can be None)
 953                 'cloud_config': (optional) dictionary with:
 954                 'key-pairs': (optional) list of strings with the public key to be inserted to the default user
 955                 'users': (optional) list of users to be inserted, each item is a dict with:
 956                     'name': (mandatory) user name,
 957                     'key-pairs': (optional) list of strings with the public key to be inserted to the user
 958                 'user-data': (optional) string is a text script to be passed directly to cloud-init
 959                 'config-files': (optional). List of files to be transferred. Each item is a dict with:
 960                     'dest': (mandatory) string with the destination absolute path
 961                     'encoding': (optional, by default text). Can be one of:
 962                         'b64', 'base64', 'gz', 'gz+b64', 'gz+base64', 'gzip+b64', 'gzip+base64'
 963                     'content' (mandatory): string with the content of the file
 964                     'permissions': (optional) string with file permissions, typically octal notation '0644'
 965                     'owner': (optional) file owner, string with the format 'owner:group'
 966                 'boot-data-drive': boolean to indicate if user-data must be passed using a boot drive (hard disk)
 967             'disk_list': (optional) list with additional disks to the VM. Each item is a dict with:
 968                 'image_id': (optional). VIM id of an existing image. If not provided an empty disk must be mounted
 969                 'size': (mandatory) string with the size of the disk in GB
 970             availability_zone_index: Index of availability_zone_list to use for this this VM. None if not AV required
 971             availability_zone_list: list of availability zones given by user in the VNFD descriptor.  Ignore if
 972                 availability_zone_index is None
 973                 #TODO ip, security groups
 974         Returns a tuple with the instance identifier and created_items or raises an exception on error
 975             created_items can be None or a dictionary where this method can include key-values that will be passed to
 976             the method delete_vminstance and action_vminstance. Can be used to store created ports, volumes, etc.
 977             Format is vimconnector dependent, but do not use nested dictionaries and a value of None should be the same
 978             as not present.
 979         """
 980         self.logger.debug("new_vminstance input: image='%s' flavor='%s' nics='%s'",image_id, flavor_id,str(net_list))
 981         try:
 982             server = None
 983             created_items = {}
 984             # metadata = {}
 985             net_list_vim = []
 986             external_network = []   # list of external networks to be connected to instance, later on used to create floating_ip
 987             no_secured_ports = []   # List of port-is with port-security disabled
 988             self._reload_connection()
 989             # metadata_vpci = {}   # For a specific neutron plugin
 990             block_device_mapping = None
 991             for net in net_list:
 992                 if not net.get("net_id"):   # skip non connected iface
 993                     continue
 994
 995                 port_dict={
 996                     "network_id": net["net_id"],
 997                     "name": net.get("name"),
 998                     "admin_state_up": True
 999                 }
1000                 if net["type"]=="virtual":
1001                     pass
1002                     # if "vpci" in net:
1003                     #     metadata_vpci[ net["net_id"] ] = [[ net["vpci"], "" ]]
1004                 elif net["type"]=="VF": # for VF
1005                     # if "vpci" in net:
1006                     #     if "VF" not in metadata_vpci:
1007                     #         metadata_vpci["VF"]=[]
1008                     #     metadata_vpci["VF"].append([ net["vpci"], "" ])
1009                     port_dict["binding:vnic_type"]="direct"
1010                     # VIO specific Changes
1011                     if self.vim_type == "VIO":
1012                         # Need to create port with port_security_enabled = False and no-security-groups
1013                         port_dict["port_security_enabled"]=False
1014                         port_dict["provider_security_groups"]=[]
1015                         port_dict["security_groups"]=[]
1016                 else: #For PT
1017                     # VIO specific Changes
1018                     # Current VIO release does not support port with type 'direct-physical'
1019                     # So no need to create virtual port in case of PCI-device.
1020                     # Will update port_dict code when support gets added in next VIO release
1021                     if self.vim_type == "VIO":
1022                         raise vimconn.vimconnNotSupportedException(
1023                             "Current VIO release does not support full passthrough (PT)")
1024                     # if "vpci" in net:
1025                     #     if "PF" not in metadata_vpci:
1026                     #         metadata_vpci["PF"]=[]
1027                     #     metadata_vpci["PF"].append([ net["vpci"], "" ])
1028                     port_dict["binding:vnic_type"]="direct-physical"
1029                 if not port_dict["name"]:
1030                     port_dict["name"]=name
1031                 if net.get("mac_address"):
1032                     port_dict["mac_address"]=net["mac_address"]
1033                 new_port = self.neutron.create_port({"port": port_dict })
1034                 created_items[("port", str(new_port["port"]["id"]))] = True
1035                 net["mac_adress"] = new_port["port"]["mac_address"]
1036                 net["vim_id"] = new_port["port"]["id"]
1037                 # if try to use a network without subnetwork, it will return a emtpy list
1038                 fixed_ips = new_port["port"].get("fixed_ips")
1039                 if fixed_ips:
1040                     net["ip"] = fixed_ips[0].get("ip_address")
1041                 else:
1042                     net["ip"] = None
1043
1044                 port = {"port-id": new_port["port"]["id"]}
1045                 if float(self.nova.api_version.get_string()) >= 2.32:
1046                     port["tag"] = new_port["port"]["name"]
1047                 net_list_vim.append(port)
1048
1049                 if net.get('floating_ip', False):
1050                     net['exit_on_floating_ip_error'] = True
1051                     external_network.append(net)
1052                 elif net['use'] == 'mgmt' and self.config.get('use_floating_ip'):
1053                     net['exit_on_floating_ip_error'] = False
1054                     external_network.append(net)
1055
1056                 # If port security is disabled when the port has not yet been attached to the VM, then all vm traffic is dropped.
1057                 # As a workaround we wait until the VM is active and then disable the port-security
1058                 if net.get("port_security") == False:
1059                     no_secured_ports.append(new_port["port"]["id"])
1060
1061             # if metadata_vpci:
1062             #     metadata = {"pci_assignement": json.dumps(metadata_vpci)}
1063             #     if len(metadata["pci_assignement"]) >255:
1064             #         #limit the metadata size
1065             #         #metadata["pci_assignement"] = metadata["pci_assignement"][0:255]
1066             #         self.logger.warn("Metadata deleted since it exceeds the expected length (255) ")
1067             #         metadata = {}
1068
1069             self.logger.debug("name '%s' image_id '%s'flavor_id '%s' net_list_vim '%s' description '%s'",
1070                               name, image_id, flavor_id, str(net_list_vim), description)
1071
1072             security_groups = self.config.get('security_groups')
1073             if type(security_groups) is str:
1074                 security_groups = ( security_groups, )
1075             # cloud config
1076             config_drive, userdata = self._create_user_data(cloud_config)
1077
1078             # Create additional volumes in case these are present in disk_list
1079             base_disk_index = ord('b')
1080             if disk_list != None:
1081                 block_device_mapping = {}
1082                 for disk in disk_list:
1083                     if 'image_id' in disk:
1084                         volume = self.cinder.volumes.create(size = disk['size'],name = name + '_vd' +
1085                                     chr(base_disk_index), imageRef = disk['image_id'])
1086                     else:
1087                         volume = self.cinder.volumes.create(size=disk['size'], name=name + '_vd' +
1088                                     chr(base_disk_index))
1089                     created_items[("volume", str(volume.id))] = True
1090                     block_device_mapping['_vd' +  chr(base_disk_index)] = volume.id
1091                     base_disk_index += 1
1092
1093                 # Wait until volumes are with status available
1094                 keep_waiting = True
1095                 elapsed_time = 0
1096                 while keep_waiting and elapsed_time < volume_timeout:
1097                     keep_waiting = False
1098                     for volume_id in block_device_mapping.itervalues():
1099                         if self.cinder.volumes.get(volume_id).status != 'available':
1100                             keep_waiting = True
1101                     if keep_waiting:
1102                         time.sleep(1)
1103                         elapsed_time += 1
1104
1105                 # If we exceeded the timeout rollback
1106                 if elapsed_time >= volume_timeout:
1107                     raise vimconn.vimconnException('Timeout creating volumes for instance ' + name,
1108                                                    http_code=vimconn.HTTP_Request_Timeout)
1109             # get availability Zone
1110             vm_av_zone = self._get_vm_availability_zone(availability_zone_index, availability_zone_list)
1111
1112             self.logger.debug("nova.servers.create({}, {}, {}, nics={}, security_groups={}, "
1113                               "availability_zone={}, key_name={}, userdata={}, config_drive={}, "
1114                               "block_device_mapping={})".format(name, image_id, flavor_id, net_list_vim,
1115                                                                 security_groups, vm_av_zone, self.config.get('keypair'),
1116                                                                 userdata, config_drive, block_device_mapping))
1117             server = self.nova.servers.create(name, image_id, flavor_id, nics=net_list_vim,
1118                                               security_groups=security_groups,
1119                                               availability_zone=vm_av_zone,
1120                                               key_name=self.config.get('keypair'),
1121                                               userdata=userdata,
1122                                               config_drive=config_drive,
1123                                               block_device_mapping=block_device_mapping
1124                                               )  # , description=description)
1125
1126             # Previously mentioned workaround to wait until the VM is active and then disable the port-security
1127             if no_secured_ports:
1128                 self.__wait_for_vm(server.id, 'ACTIVE')
1129
1130             for port_id in no_secured_ports:
1131                 try:
1132                     self.neutron.update_port(port_id, {"port": {"port_security_enabled": False, "security_groups": None} })
1133                 except Exception as e:
1134                     self.logger.error("It was not possible to disable port security for port {}".format(port_id))
1135                     raise
1136
1137             # print "DONE :-)", server
1138
1139             pool_id = None
1140             if external_network:
1141                 floating_ips = self.neutron.list_floatingips().get("floatingips", ())
1142                 self.__wait_for_vm(server.id, 'ACTIVE')
1143
1144             for floating_network in external_network:
1145                 try:
1146                     assigned = False
1147                     while not assigned:
1148                         if floating_ips:
1149                             ip = floating_ips.pop(0)
1150                             if not ip.get("port_id", False) and ip.get('tenant_id') == server.tenant_id:
1151                                 free_floating_ip = ip.get("floating_ip_address")
1152                                 try:
1153                                     fix_ip = floating_network.get('ip')
1154                                     server.add_floating_ip(free_floating_ip, fix_ip)
1155                                     assigned = True
1156                                 except Exception as e:
1157                                     raise vimconn.vimconnException(type(e).__name__ + ": Cannot create floating_ip "+  str(e), http_code=vimconn.HTTP_Conflict)
1158                         else:
1159                             #Find the external network
1160                             external_nets = list()
1161                             for net in self.neutron.list_networks()['networks']:
1162                                 if net['router:external']:
1163                                         external_nets.append(net)
1164
1165                             if len(external_nets) == 0:
1166                                 raise vimconn.vimconnException("Cannot create floating_ip automatically since no external "
1167                                                                "network is present",
1168                                                                 http_code=vimconn.HTTP_Conflict)
1169                             if len(external_nets) > 1:
1170                                 raise vimconn.vimconnException("Cannot create floating_ip automatically since multiple "
1171                                                                "external networks are present",
1172                                                                http_code=vimconn.HTTP_Conflict)
1173
1174                             pool_id = external_nets[0].get('id')
1175                             param = {'floatingip': {'floating_network_id': pool_id, 'tenant_id': server.tenant_id}}
1176                             try:
1177                                 #self.logger.debug("Creating floating IP")
1178                                 new_floating_ip = self.neutron.create_floatingip(param)
1179                                 free_floating_ip = new_floating_ip['floatingip']['floating_ip_address']
1180                                 fix_ip = floating_network.get('ip')
1181                                 server.add_floating_ip(free_floating_ip, fix_ip)
1182                                 assigned=True
1183                             except Exception as e:
1184                                 raise vimconn.vimconnException(type(e).__name__ + ": Cannot assign floating_ip "+  str(e), http_code=vimconn.HTTP_Conflict)
1185                 except Exception as e:
1186                     if not floating_network['exit_on_floating_ip_error']:
1187                         self.logger.warn("Cannot create floating_ip. %s", str(e))
1188                         continue
1189                     raise
1190
1191             return server.id, created_items
1192 #        except nvExceptions.NotFound as e:
1193 #            error_value=-vimconn.HTTP_Not_Found
1194 #            error_text= "vm instance %s not found" % vm_id
1195 #        except TypeError as e:
1196 #            raise vimconn.vimconnException(type(e).__name__ + ": "+  str(e), http_code=vimconn.HTTP_Bad_Request)
1197
1198         except Exception as e:
1199             server_id = None
1200             if server:
1201                 server_id = server.id
1202             try:
1203                 self.delete_vminstance(server_id, created_items)
1204             except Exception as e2:
1205                 self.logger.error("new_vminstance rollback fail {}".format(e2))
1206
1207             self._format_exception(e)
1208
1209     def get_vminstance(self,vm_id):
1210         '''Returns the VM instance information from VIM'''
1211         #self.logger.debug("Getting VM from VIM")
1212         try:
1213             self._reload_connection()
1214             server = self.nova.servers.find(id=vm_id)
1215             #TODO parse input and translate to VIM format (openmano_schemas.new_vminstance_response_schema)
1216             return server.to_dict()
1217         except (ksExceptions.ClientException, nvExceptions.ClientException, nvExceptions.NotFound, ConnectionError) as e:
1218             self._format_exception(e)
1219
1220     def get_vminstance_console(self,vm_id, console_type="vnc"):
1221         '''
1222         Get a console for the virtual machine
1223         Params:
1224             vm_id: uuid of the VM
1225             console_type, can be:
1226                 "novnc" (by default), "xvpvnc" for VNC types,
1227                 "rdp-html5" for RDP types, "spice-html5" for SPICE types
1228         Returns dict with the console parameters:
1229                 protocol: ssh, ftp, http, https, ...
1230                 server:   usually ip address
1231                 port:     the http, ssh, ... port
1232                 suffix:   extra text, e.g. the http path and query string
1233         '''
1234         self.logger.debug("Getting VM CONSOLE from VIM")
1235         try:
1236             self._reload_connection()
1237             server = self.nova.servers.find(id=vm_id)
1238             if console_type == None or console_type == "novnc":
1239                 console_dict = server.get_vnc_console("novnc")
1240             elif console_type == "xvpvnc":
1241                 console_dict = server.get_vnc_console(console_type)
1242             elif console_type == "rdp-html5":
1243                 console_dict = server.get_rdp_console(console_type)
1244             elif console_type == "spice-html5":
1245                 console_dict = server.get_spice_console(console_type)
1246             else:
1247                 raise vimconn.vimconnException("console type '{}' not allowed".format(console_type), http_code=vimconn.HTTP_Bad_Request)
1248
1249             console_dict1 = console_dict.get("console")
1250             if console_dict1:
1251                 console_url = console_dict1.get("url")
1252                 if console_url:
1253                     #parse console_url
1254                     protocol_index = console_url.find("//")
1255                     suffix_index = console_url[protocol_index+2:].find("/") + protocol_index+2
1256                     port_index = console_url[protocol_index+2:suffix_index].find(":") + protocol_index+2
1257                     if protocol_index < 0 or port_index<0 or suffix_index<0:
1258                         return -vimconn.HTTP_Internal_Server_Error, "Unexpected response from VIM"
1259                     console_dict={"protocol": console_url[0:protocol_index],
1260                                   "server":   console_url[protocol_index+2:port_index],
1261                                   "port":     console_url[port_index:suffix_index],
1262                                   "suffix":   console_url[suffix_index+1:]
1263                                   }
1264                     protocol_index += 2
1265                     return console_dict
1266             raise vimconn.vimconnUnexpectedResponse("Unexpected response from VIM")
1267
1268         except (nvExceptions.NotFound, ksExceptions.ClientException, nvExceptions.ClientException, nvExceptions.BadRequest, ConnectionError) as e:
1269             self._format_exception(e)
1270
1271     def delete_vminstance(self, vm_id, created_items=None):
1272         '''Removes a VM instance from VIM. Returns the old identifier
1273         '''
1274         #print "osconnector: Getting VM from VIM"
1275         if created_items == None:
1276             created_items = {}
1277         try:
1278             self._reload_connection()
1279             # delete VM ports attached to this networks before the virtual machine
1280             for k, v in created_items.items():
1281                 if not v:  # skip already deleted
1282                     continue
1283                 try:
1284                     if k[0] == "port":
1285                         self.neutron.delete_port(k[1])
1286                 except Exception as e:
1287                     self.logger.error("Error deleting port: " + type(e).__name__ + ": "+  str(e))
1288
1289             # #commented because detaching the volumes makes the servers.delete not work properly ?!?
1290             # #dettach volumes attached
1291             # server = self.nova.servers.get(vm_id)
1292             # volumes_attached_dict = server._info['os-extended-volumes:volumes_attached']   #volume['id']
1293             # #for volume in volumes_attached_dict:
1294             # #    self.cinder.volumes.detach(volume['id'])
1295
1296             if vm_id:
1297                 self.nova.servers.delete(vm_id)
1298
1299             # delete volumes. Although having detached, they should have in active status before deleting
1300             # we ensure in this loop
1301             keep_waiting = True
1302             elapsed_time = 0
1303             while keep_waiting and elapsed_time < volume_timeout:
1304                 keep_waiting = False
1305                 for k, v in created_items.items():
1306                     if not v:  # skip already deleted
1307                         continue
1308                     try:
1309                         if k[0] == "volume":
1310                             if self.cinder.volumes.get(k[1]).status != 'available':
1311                                 keep_waiting = True
1312                             else:
1313                                 self.cinder.volumes.delete(k[1])
1314                     except Exception as e:
1315                         self.logger.error("Error deleting volume: " + type(e).__name__ + ": " + str(e))
1316                 if keep_waiting:
1317                     time.sleep(1)
1318                     elapsed_time += 1
1319             return None
1320         except (nvExceptions.NotFound, ksExceptions.ClientException, nvExceptions.ClientException, ConnectionError) as e:
1321             self._format_exception(e)
1322
1323     def refresh_vms_status(self, vm_list):
1324         '''Get the status of the virtual machines and their interfaces/ports
1325            Params: the list of VM identifiers
1326            Returns a dictionary with:
1327                 vm_id:          #VIM id of this Virtual Machine
1328                     status:     #Mandatory. Text with one of:
1329                                 #  DELETED (not found at vim)
1330                                 #  VIM_ERROR (Cannot connect to VIM, VIM response error, ...)
1331                                 #  OTHER (Vim reported other status not understood)
1332                                 #  ERROR (VIM indicates an ERROR status)
1333                                 #  ACTIVE, PAUSED, SUSPENDED, INACTIVE (not running),
1334                                 #  CREATING (on building process), ERROR
1335                                 #  ACTIVE:NoMgmtIP (Active but any of its interface has an IP address
1336                                 #
1337                     error_msg:  #Text with VIM error message, if any. Or the VIM connection ERROR
1338                     vim_info:   #Text with plain information obtained from vim (yaml.safe_dump)
1339                     interfaces:
1340                      -  vim_info:         #Text with plain information obtained from vim (yaml.safe_dump)
1341                         mac_address:      #Text format XX:XX:XX:XX:XX:XX
1342                         vim_net_id:       #network id where this interface is connected
1343                         vim_interface_id: #interface/port VIM id
1344                         ip_address:       #null, or text with IPv4, IPv6 address
1345                         compute_node:     #identification of compute node where PF,VF interface is allocated
1346                         pci:              #PCI address of the NIC that hosts the PF,VF
1347                         vlan:             #physical VLAN used for VF
1348         '''
1349         vm_dict={}
1350         self.logger.debug("refresh_vms status: Getting tenant VM instance information from VIM")
1351         for vm_id in vm_list:
1352             vm={}
1353             try:
1354                 vm_vim = self.get_vminstance(vm_id)
1355                 if vm_vim['status'] in vmStatus2manoFormat:
1356                     vm['status']    =  vmStatus2manoFormat[ vm_vim['status'] ]
1357                 else:
1358                     vm['status']    = "OTHER"
1359                     vm['error_msg'] = "VIM status reported " + vm_vim['status']
1360                 try:
1361                     vm['vim_info']  = yaml.safe_dump(vm_vim, default_flow_style=True, width=256)
1362                 except yaml.representer.RepresenterError:
1363                     vm['vim_info'] = str(vm_vim)
1364                 vm["interfaces"] = []
1365                 if vm_vim.get('fault'):
1366                     vm['error_msg'] = str(vm_vim['fault'])
1367                 #get interfaces
1368                 try:
1369                     self._reload_connection()
1370                     port_dict=self.neutron.list_ports(device_id=vm_id)
1371                     for port in port_dict["ports"]:
1372                         interface={}
1373                         try:
1374                             interface['vim_info'] = yaml.safe_dump(port, default_flow_style=True, width=256)
1375                         except yaml.representer.RepresenterError:
1376                             interface['vim_info'] = str(port)
1377                         interface["mac_address"] = port.get("mac_address")
1378                         interface["vim_net_id"] = port["network_id"]
1379                         interface["vim_interface_id"] = port["id"]
1380                         # check if OS-EXT-SRV-ATTR:host is there,
1381                         # in case of non-admin credentials, it will be missing
1382                         if vm_vim.get('OS-EXT-SRV-ATTR:host'):
1383                             interface["compute_node"] = vm_vim['OS-EXT-SRV-ATTR:host']
1384                         interface["pci"] = None
1385
1386                         # check if binding:profile is there,
1387                         # in case of non-admin credentials, it will be missing
1388                         if port.get('binding:profile'):
1389                             if port['binding:profile'].get('pci_slot'):
1390                                 # TODO: At the moment sr-iov pci addresses are converted to PF pci addresses by setting the slot to 0x00
1391                                 # TODO: This is just a workaround valid for niantinc. Find a better way to do so
1392                                 #   CHANGE DDDD:BB:SS.F to DDDD:BB:00.(F%2)   assuming there are 2 ports per nic
1393                                 pci = port['binding:profile']['pci_slot']
1394                                 # interface["pci"] = pci[:-4] + "00." + str(int(pci[-1]) % 2)
1395                                 interface["pci"] = pci
1396                         interface["vlan"] = None
1397                         #if network is of type vlan and port is of type direct (sr-iov) then set vlan id
1398                         network = self.neutron.show_network(port["network_id"])
1399                         if network['network'].get('provider:network_type') == 'vlan' and \
1400                             port.get("binding:vnic_type") == "direct":
1401                             interface["vlan"] = network['network'].get('provider:segmentation_id')
1402                         ips=[]
1403                         #look for floating ip address
1404                         floating_ip_dict = self.neutron.list_floatingips(port_id=port["id"])
1405                         if floating_ip_dict.get("floatingips"):
1406                             ips.append(floating_ip_dict["floatingips"][0].get("floating_ip_address") )
1407
1408                         for subnet in port["fixed_ips"]:
1409                             ips.append(subnet["ip_address"])
1410                         interface["ip_address"] = ";".join(ips)
1411                         vm["interfaces"].append(interface)
1412                 except Exception as e:
1413                     self.logger.error("Error getting vm interface information " + type(e).__name__ + ": "+  str(e))
1414             except vimconn.vimconnNotFoundException as e:
1415                 self.logger.error("Exception getting vm status: %s", str(e))
1416                 vm['status'] = "DELETED"
1417                 vm['error_msg'] = str(e)
1418             except vimconn.vimconnException as e:
1419                 self.logger.error("Exception getting vm status: %s", str(e))
1420                 vm['status'] = "VIM_ERROR"
1421                 vm['error_msg'] = str(e)
1422             vm_dict[vm_id] = vm
1423         return vm_dict
1424
1425     def action_vminstance(self, vm_id, action_dict, created_items={}):
1426         '''Send and action over a VM instance from VIM
1427         Returns None or the console dict if the action was successfully sent to the VIM'''
1428         self.logger.debug("Action over VM '%s': %s", vm_id, str(action_dict))
1429         try:
1430             self._reload_connection()
1431             server = self.nova.servers.find(id=vm_id)
1432             if "start" in action_dict:
1433                 if action_dict["start"]=="rebuild":
1434                     server.rebuild()
1435                 else:
1436                     if server.status=="PAUSED":
1437                         server.unpause()
1438                     elif server.status=="SUSPENDED":
1439                         server.resume()
1440                     elif server.status=="SHUTOFF":
1441                         server.start()
1442             elif "pause" in action_dict:
1443                 server.pause()
1444             elif "resume" in action_dict:
1445                 server.resume()
1446             elif "shutoff" in action_dict or "shutdown" in action_dict:
1447                 server.stop()
1448             elif "forceOff" in action_dict:
1449                 server.stop() #TODO
1450             elif "terminate" in action_dict:
1451                 server.delete()
1452             elif "createImage" in action_dict:
1453                 server.create_image()
1454                 #"path":path_schema,
1455                 #"description":description_schema,
1456                 #"name":name_schema,
1457                 #"metadata":metadata_schema,
1458                 #"imageRef": id_schema,
1459                 #"disk": {"oneOf":[{"type": "null"}, {"type":"string"}] },
1460             elif "rebuild" in action_dict:
1461                 server.rebuild(server.image['id'])
1462             elif "reboot" in action_dict:
1463                 server.reboot() #reboot_type='SOFT'
1464             elif "console" in action_dict:
1465                 console_type = action_dict["console"]
1466                 if console_type == None or console_type == "novnc":
1467                     console_dict = server.get_vnc_console("novnc")
1468                 elif console_type == "xvpvnc":
1469                     console_dict = server.get_vnc_console(console_type)
1470                 elif console_type == "rdp-html5":
1471                     console_dict = server.get_rdp_console(console_type)
1472                 elif console_type == "spice-html5":
1473                     console_dict = server.get_spice_console(console_type)
1474                 else:
1475                     raise vimconn.vimconnException("console type '{}' not allowed".format(console_type),
1476                                                    http_code=vimconn.HTTP_Bad_Request)
1477                 try:
1478                     console_url = console_dict["console"]["url"]
1479                     #parse console_url
1480                     protocol_index = console_url.find("//")
1481                     suffix_index = console_url[protocol_index+2:].find("/") + protocol_index+2
1482                     port_index = console_url[protocol_index+2:suffix_index].find(":") + protocol_index+2
1483                     if protocol_index < 0 or port_index<0 or suffix_index<0:
1484                         raise vimconn.vimconnException("Unexpected response from VIM " + str(console_dict))
1485                     console_dict2={"protocol": console_url[0:protocol_index],
1486                                   "server":   console_url[protocol_index+2 : port_index],
1487                                   "port":     int(console_url[port_index+1 : suffix_index]),
1488                                   "suffix":   console_url[suffix_index+1:]
1489                                   }
1490                     return console_dict2
1491                 except Exception as e:
1492                     raise vimconn.vimconnException("Unexpected response from VIM " + str(console_dict))
1493
1494             return None
1495         except (ksExceptions.ClientException, nvExceptions.ClientException, nvExceptions.NotFound, ConnectionError) as e:
1496             self._format_exception(e)
1497         #TODO insert exception vimconn.HTTP_Unauthorized
1498
1499     ####### VIO Specific Changes #########
1500     def _genrate_vlanID(self):
1501         """
1502          Method to get unused vlanID
1503             Args:
1504                 None
1505             Returns:
1506                 vlanID
1507         """
1508         #Get used VLAN IDs
1509         usedVlanIDs = []
1510         networks = self.get_network_list()
1511         for net in networks:
1512             if net.get('provider:segmentation_id'):
1513                 usedVlanIDs.append(net.get('provider:segmentation_id'))
1514         used_vlanIDs = set(usedVlanIDs)
1515
1516         #find unused VLAN ID
1517         for vlanID_range in self.config.get('dataplane_net_vlan_range'):
1518             try:
1519                 start_vlanid , end_vlanid = map(int, vlanID_range.replace(" ", "").split("-"))
1520                 for vlanID in xrange(start_vlanid, end_vlanid + 1):
1521                     if vlanID not in used_vlanIDs:
1522                         return vlanID
1523             except Exception as exp:
1524                 raise vimconn.vimconnException("Exception {} occurred while generating VLAN ID.".format(exp))
1525         else:
1526             raise vimconn.vimconnConflictException("Unable to create the SRIOV VLAN network."\
1527                 " All given Vlan IDs {} are in use.".format(self.config.get('dataplane_net_vlan_range')))
1528
1529
1530     def _validate_vlan_ranges(self, dataplane_net_vlan_range):
1531         """
1532         Method to validate user given vlanID ranges
1533             Args:  None
1534             Returns: None
1535         """
1536         for vlanID_range in dataplane_net_vlan_range:
1537             vlan_range = vlanID_range.replace(" ", "")
1538             #validate format
1539             vlanID_pattern = r'(\d)*-(\d)*$'
1540             match_obj = re.match(vlanID_pattern, vlan_range)
1541             if not match_obj:
1542                 raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}.You must provide "\
1543                 "'dataplane_net_vlan_range' in format [start_ID - end_ID].".format(vlanID_range))
1544
1545             start_vlanid , end_vlanid = map(int,vlan_range.split("-"))
1546             if start_vlanid <= 0 :
1547                 raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}."\
1548                 "Start ID can not be zero. For VLAN "\
1549                 "networks valid IDs are 1 to 4094 ".format(vlanID_range))
1550             if end_vlanid > 4094 :
1551                 raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}."\
1552                 "End VLAN ID can not be greater than 4094. For VLAN "\
1553                 "networks valid IDs are 1 to 4094 ".format(vlanID_range))
1554
1555             if start_vlanid > end_vlanid:
1556                 raise vimconn.vimconnConflictException("Invalid dataplane_net_vlan_range {}."\
1557                     "You must provide a 'dataplane_net_vlan_range' in format start_ID - end_ID and "\
1558                     "start_ID < end_ID ".format(vlanID_range))
1559
1560 #NOT USED FUNCTIONS
1561
1562     def new_external_port(self, port_data):
1563         #TODO openstack if needed
1564         '''Adds a external port to VIM'''
1565         '''Returns the port identifier'''
1566         return -vimconn.HTTP_Internal_Server_Error, "osconnector.new_external_port() not implemented"
1567
1568     def connect_port_network(self, port_id, network_id, admin=False):
1569         #TODO openstack if needed
1570         '''Connects a external port to a network'''
1571         '''Returns status code of the VIM response'''
1572         return -vimconn.HTTP_Internal_Server_Error, "osconnector.connect_port_network() not implemented"
1573
1574     def new_user(self, user_name, user_passwd, tenant_id=None):
1575         '''Adds a new user to openstack VIM'''
1576         '''Returns the user identifier'''
1577         self.logger.debug("osconnector: Adding a new user to VIM")
1578         try:
1579             self._reload_connection()
1580             user=self.keystone.users.create(user_name, user_passwd, tenant_id=tenant_id)
1581             #self.keystone.tenants.add_user(self.k_creds["username"], #role)
1582             return user.id
1583         except ksExceptions.ConnectionError as e:
1584             error_value=-vimconn.HTTP_Bad_Request
1585             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1586         except ksExceptions.ClientException as e: #TODO remove
1587             error_value=-vimconn.HTTP_Bad_Request
1588             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1589         #TODO insert exception vimconn.HTTP_Unauthorized
1590         #if reaching here is because an exception
1591         if self.debug:
1592             self.logger.debug("new_user " + error_text)
1593         return error_value, error_text
1594
1595     def delete_user(self, user_id):
1596         '''Delete a user from openstack VIM'''
1597         '''Returns the user identifier'''
1598         if self.debug:
1599             print("osconnector: Deleting  a  user from VIM")
1600         try:
1601             self._reload_connection()
1602             self.keystone.users.delete(user_id)
1603             return 1, user_id
1604         except ksExceptions.ConnectionError as e:
1605             error_value=-vimconn.HTTP_Bad_Request
1606             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1607         except ksExceptions.NotFound as e:
1608             error_value=-vimconn.HTTP_Not_Found
1609             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1610         except ksExceptions.ClientException as e: #TODO remove
1611             error_value=-vimconn.HTTP_Bad_Request
1612             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1613         #TODO insert exception vimconn.HTTP_Unauthorized
1614         #if reaching here is because an exception
1615         if self.debug:
1616             print("delete_tenant " + error_text)
1617         return error_value, error_text
1618
1619     def get_hosts_info(self):
1620         '''Get the information of deployed hosts
1621         Returns the hosts content'''
1622         if self.debug:
1623             print("osconnector: Getting Host info from VIM")
1624         try:
1625             h_list=[]
1626             self._reload_connection()
1627             hypervisors = self.nova.hypervisors.list()
1628             for hype in hypervisors:
1629                 h_list.append( hype.to_dict() )
1630             return 1, {"hosts":h_list}
1631         except nvExceptions.NotFound as e:
1632             error_value=-vimconn.HTTP_Not_Found
1633             error_text= (str(e) if len(e.args)==0 else str(e.args[0]))
1634         except (ksExceptions.ClientException, nvExceptions.ClientException) as e:
1635             error_value=-vimconn.HTTP_Bad_Request
1636             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1637         #TODO insert exception vimconn.HTTP_Unauthorized
1638         #if reaching here is because an exception
1639         if self.debug:
1640             print("get_hosts_info " + error_text)
1641         return error_value, error_text
1642
1643     def get_hosts(self, vim_tenant):
1644         '''Get the hosts and deployed instances
1645         Returns the hosts content'''
1646         r, hype_dict = self.get_hosts_info()
1647         if r<0:
1648             return r, hype_dict
1649         hypervisors = hype_dict["hosts"]
1650         try:
1651             servers = self.nova.servers.list()
1652             for hype in hypervisors:
1653                 for server in servers:
1654                     if server.to_dict()['OS-EXT-SRV-ATTR:hypervisor_hostname']==hype['hypervisor_hostname']:
1655                         if 'vm' in hype:
1656                             hype['vm'].append(server.id)
1657                         else:
1658                             hype['vm'] = [server.id]
1659             return 1, hype_dict
1660         except nvExceptions.NotFound as e:
1661             error_value=-vimconn.HTTP_Not_Found
1662             error_text= (str(e) if len(e.args)==0 else str(e.args[0]))
1663         except (ksExceptions.ClientException, nvExceptions.ClientException) as e:
1664             error_value=-vimconn.HTTP_Bad_Request
1665             error_text= type(e).__name__ + ": "+  (str(e) if len(e.args)==0 else str(e.args[0]))
1666         #TODO insert exception vimconn.HTTP_Unauthorized
1667         #if reaching here is because an exception
1668         if self.debug:
1669             print("get_hosts " + error_text)
1670         return error_value, error_text
1671
1672     def new_classification(self, name, ctype, definition):
1673         self.logger.debug(
1674             'Adding a new (Traffic) Classification to VIM, named %s', name)
1675         try:
1676             new_class = None
1677             self._reload_connection()
1678             if ctype not in supportedClassificationTypes:
1679                 raise vimconn.vimconnNotSupportedException(
1680                         'OpenStack VIM connector doesn\'t support provided '
1681                         'Classification Type {}, supported ones are: '
1682                         '{}'.format(ctype, supportedClassificationTypes))
1683             if not self._validate_classification(ctype, definition):
1684                 raise vimconn.vimconnException(
1685                     'Incorrect Classification definition '
1686                     'for the type specified.')
1687             classification_dict = definition
1688             classification_dict['name'] = name
1689
1690             new_class = self.neutron.create_flow_classifier(
1691                 {'flow_classifier': classification_dict})
1692             return new_class['flow_classifier']['id']
1693         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1694                 neExceptions.NeutronException, ConnectionError) as e:
1695             self.logger.error(
1696                 'Creation of Classification failed.')
1697             self._format_exception(e)
1698
1699     def get_classification(self, class_id):
1700         self.logger.debug(" Getting Classification %s from VIM", class_id)
1701         filter_dict = {"id": class_id}
1702         class_list = self.get_classification_list(filter_dict)
1703         if len(class_list) == 0:
1704             raise vimconn.vimconnNotFoundException(
1705                 "Classification '{}' not found".format(class_id))
1706         elif len(class_list) > 1:
1707             raise vimconn.vimconnConflictException(
1708                 "Found more than one Classification with this criteria")
1709         classification = class_list[0]
1710         return classification
1711
1712     def get_classification_list(self, filter_dict={}):
1713         self.logger.debug("Getting Classifications from VIM filter: '%s'",
1714                           str(filter_dict))
1715         try:
1716             self._reload_connection()
1717             if self.api_version3 and "tenant_id" in filter_dict:
1718                 filter_dict['project_id'] = filter_dict.pop('tenant_id')
1719             classification_dict = self.neutron.list_flow_classifier(
1720                 **filter_dict)
1721             classification_list = classification_dict["flow_classifiers"]
1722             self.__classification_os2mano(classification_list)
1723             return classification_list
1724         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1725                 neExceptions.NeutronException, ConnectionError) as e:
1726             self._format_exception(e)
1727
1728     def delete_classification(self, class_id):
1729         self.logger.debug("Deleting Classification '%s' from VIM", class_id)
1730         try:
1731             self._reload_connection()
1732             self.neutron.delete_flow_classifier(class_id)
1733             return class_id
1734         except (neExceptions.ConnectionFailed, neExceptions.NeutronException,
1735                 ksExceptions.ClientException, neExceptions.NeutronException,
1736                 ConnectionError) as e:
1737             self._format_exception(e)
1738
1739     def new_sfi(self, name, ingress_ports, egress_ports, sfc_encap=True):
1740         self.logger.debug(
1741             "Adding a new Service Function Instance to VIM, named '%s'", name)
1742         try:
1743             new_sfi = None
1744             self._reload_connection()
1745             correlation = None
1746             if sfc_encap:
1747                 # TODO(igordc): must be changed to NSH in Queens
1748                 # (MPLS is a workaround)
1749                 correlation = 'mpls'
1750             if len(ingress_ports) != 1:
1751                 raise vimconn.vimconnNotSupportedException(
1752                     "OpenStack VIM connector can only have "
1753                     "1 ingress port per SFI")
1754             if len(egress_ports) != 1:
1755                 raise vimconn.vimconnNotSupportedException(
1756                     "OpenStack VIM connector can only have "
1757                     "1 egress port per SFI")
1758             sfi_dict = {'name': name,
1759                         'ingress': ingress_ports[0],
1760                         'egress': egress_ports[0],
1761                         'service_function_parameters': {
1762                             'correlation': correlation}}
1763             new_sfi = self.neutron.create_port_pair({'port_pair': sfi_dict})
1764             return new_sfi['port_pair']['id']
1765         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1766                 neExceptions.NeutronException, ConnectionError) as e:
1767             if new_sfi:
1768                 try:
1769                     self.neutron.delete_port_pair_group(
1770                         new_sfi['port_pair']['id'])
1771                 except Exception:
1772                     self.logger.error(
1773                         'Creation of Service Function Instance failed, with '
1774                         'subsequent deletion failure as well.')
1775             self._format_exception(e)
1776
1777     def get_sfi(self, sfi_id):
1778         self.logger.debug(
1779             'Getting Service Function Instance %s from VIM', sfi_id)
1780         filter_dict = {"id": sfi_id}
1781         sfi_list = self.get_sfi_list(filter_dict)
1782         if len(sfi_list) == 0:
1783             raise vimconn.vimconnNotFoundException(
1784                 "Service Function Instance '{}' not found".format(sfi_id))
1785         elif len(sfi_list) > 1:
1786             raise vimconn.vimconnConflictException(
1787                 'Found more than one Service Function Instance '
1788                 'with this criteria')
1789         sfi = sfi_list[0]
1790         return sfi
1791
1792     def get_sfi_list(self, filter_dict={}):
1793         self.logger.debug("Getting Service Function Instances from "
1794                           "VIM filter: '%s'", str(filter_dict))
1795         try:
1796             self._reload_connection()
1797             if self.api_version3 and "tenant_id" in filter_dict:
1798                 filter_dict['project_id'] = filter_dict.pop('tenant_id')
1799             sfi_dict = self.neutron.list_port_pair(**filter_dict)
1800             sfi_list = sfi_dict["port_pairs"]
1801             self.__sfi_os2mano(sfi_list)
1802             return sfi_list
1803         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1804                 neExceptions.NeutronException, ConnectionError) as e:
1805             self._format_exception(e)
1806
1807     def delete_sfi(self, sfi_id):
1808         self.logger.debug("Deleting Service Function Instance '%s' "
1809                           "from VIM", sfi_id)
1810         try:
1811             self._reload_connection()
1812             self.neutron.delete_port_pair(sfi_id)
1813             return sfi_id
1814         except (neExceptions.ConnectionFailed, neExceptions.NeutronException,
1815                 ksExceptions.ClientException, neExceptions.NeutronException,
1816                 ConnectionError) as e:
1817             self._format_exception(e)
1818
1819     def new_sf(self, name, sfis, sfc_encap=True):
1820         self.logger.debug("Adding a new Service Function to VIM, "
1821                           "named '%s'", name)
1822         try:
1823             new_sf = None
1824             self._reload_connection()
1825             correlation = None
1826             if sfc_encap:
1827                 # TODO(igordc): must be changed to NSH in Queens
1828                 # (MPLS is a workaround)
1829                 correlation = 'mpls'
1830             for instance in sfis:
1831                 sfi = self.get_sfi(instance)
1832                 if sfi.get('sfc_encap') != correlation:
1833                     raise vimconn.vimconnNotSupportedException(
1834                         "OpenStack VIM connector requires all SFIs of the "
1835                         "same SF to share the same SFC Encapsulation")
1836             sf_dict = {'name': name,
1837                        'port_pairs': sfis}
1838             new_sf = self.neutron.create_port_pair_group({
1839                 'port_pair_group': sf_dict})
1840             return new_sf['port_pair_group']['id']
1841         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1842                 neExceptions.NeutronException, ConnectionError) as e:
1843             if new_sf:
1844                 try:
1845                     self.neutron.delete_port_pair_group(
1846                         new_sf['port_pair_group']['id'])
1847                 except Exception:
1848                     self.logger.error(
1849                         'Creation of Service Function failed, with '
1850                         'subsequent deletion failure as well.')
1851             self._format_exception(e)
1852
1853     def get_sf(self, sf_id):
1854         self.logger.debug("Getting Service Function %s from VIM", sf_id)
1855         filter_dict = {"id": sf_id}
1856         sf_list = self.get_sf_list(filter_dict)
1857         if len(sf_list) == 0:
1858             raise vimconn.vimconnNotFoundException(
1859                 "Service Function '{}' not found".format(sf_id))
1860         elif len(sf_list) > 1:
1861             raise vimconn.vimconnConflictException(
1862                 "Found more than one Service Function with this criteria")
1863         sf = sf_list[0]
1864         return sf
1865
1866     def get_sf_list(self, filter_dict={}):
1867         self.logger.debug("Getting Service Function from VIM filter: '%s'",
1868                           str(filter_dict))
1869         try:
1870             self._reload_connection()
1871             if self.api_version3 and "tenant_id" in filter_dict:
1872                 filter_dict['project_id'] = filter_dict.pop('tenant_id')
1873             sf_dict = self.neutron.list_port_pair_group(**filter_dict)
1874             sf_list = sf_dict["port_pair_groups"]
1875             self.__sf_os2mano(sf_list)
1876             return sf_list
1877         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1878                 neExceptions.NeutronException, ConnectionError) as e:
1879             self._format_exception(e)
1880
1881     def delete_sf(self, sf_id):
1882         self.logger.debug("Deleting Service Function '%s' from VIM", sf_id)
1883         try:
1884             self._reload_connection()
1885             self.neutron.delete_port_pair_group(sf_id)
1886             return sf_id
1887         except (neExceptions.ConnectionFailed, neExceptions.NeutronException,
1888                 ksExceptions.ClientException, neExceptions.NeutronException,
1889                 ConnectionError) as e:
1890             self._format_exception(e)
1891
1892     def new_sfp(self, name, classifications, sfs, sfc_encap=True, spi=None):
1893         self.logger.debug("Adding a new Service Function Path to VIM, "
1894                           "named '%s'", name)
1895         try:
1896             new_sfp = None
1897             self._reload_connection()
1898             if not sfc_encap:
1899                 raise vimconn.vimconnNotSupportedException(
1900                     "OpenStack VIM connector only supports "
1901                     "SFC-Encapsulated chains")
1902             # TODO(igordc): must be changed to NSH in Queens
1903             # (MPLS is a workaround)
1904             correlation = 'mpls'
1905             sfp_dict = {'name': name,
1906                         'flow_classifiers': classifications,
1907                         'port_pair_groups': sfs,
1908                         'chain_parameters': {'correlation': correlation}}
1909             if spi:
1910                 sfp_dict['chain_id'] = spi
1911             new_sfp = self.neutron.create_port_chain({'port_chain': sfp_dict})
1912             return new_sfp["port_chain"]["id"]
1913         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1914                 neExceptions.NeutronException, ConnectionError) as e:
1915             if new_sfp:
1916                 try:
1917                     self.neutron.delete_port_chain(new_sfp['port_chain']['id'])
1918                 except Exception:
1919                     self.logger.error(
1920                         'Creation of Service Function Path failed, with '
1921                         'subsequent deletion failure as well.')
1922             self._format_exception(e)
1923
1924     def get_sfp(self, sfp_id):
1925         self.logger.debug(" Getting Service Function Path %s from VIM", sfp_id)
1926         filter_dict = {"id": sfp_id}
1927         sfp_list = self.get_sfp_list(filter_dict)
1928         if len(sfp_list) == 0:
1929             raise vimconn.vimconnNotFoundException(
1930                 "Service Function Path '{}' not found".format(sfp_id))
1931         elif len(sfp_list) > 1:
1932             raise vimconn.vimconnConflictException(
1933                 "Found more than one Service Function Path with this criteria")
1934         sfp = sfp_list[0]
1935         return sfp
1936
1937     def get_sfp_list(self, filter_dict={}):
1938         self.logger.debug("Getting Service Function Paths from VIM filter: "
1939                           "'%s'", str(filter_dict))
1940         try:
1941             self._reload_connection()
1942             if self.api_version3 and "tenant_id" in filter_dict:
1943                 filter_dict['project_id'] = filter_dict.pop('tenant_id')
1944             sfp_dict = self.neutron.list_port_chain(**filter_dict)
1945             sfp_list = sfp_dict["port_chains"]
1946             self.__sfp_os2mano(sfp_list)
1947             return sfp_list
1948         except (neExceptions.ConnectionFailed, ksExceptions.ClientException,
1949                 neExceptions.NeutronException, ConnectionError) as e:
1950             self._format_exception(e)
1951
1952     def delete_sfp(self, sfp_id):
1953         self.logger.debug(
1954             "Deleting Service Function Path '%s' from VIM", sfp_id)
1955         try:
1956             self._reload_connection()
1957             self.neutron.delete_port_chain(sfp_id)
1958             return sfp_id
1959         except (neExceptions.ConnectionFailed, neExceptions.NeutronException,
1960                 ksExceptions.ClientException, neExceptions.NeutronException,
1961                 ConnectionError) as e:
1962             self._format_exception(e)