models/openmano/python/rift/openmano/rift2openmano.py

   1 #!/usr/bin/env python3
   2
   3 #
   4 #   Copyright 2016 RIFT.IO Inc
   5 #
   6 #   Licensed under the Apache License, Version 2.0 (the "License");
   7 #   you may not use this file except in compliance with the License.
   8 #   You may obtain a copy of the License at
   9 #
  10 #       http://www.apache.org/licenses/LICENSE-2.0
  11 #
  12 #   Unless required by applicable law or agreed to in writing, software
  13 #   distributed under the License is distributed on an "AS IS" BASIS,
  14 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 #   See the License for the specific language governing permissions and
  16 #   limitations under the License.
  17 #
  18
  19 import argparse
  20 import collections
  21 import logging
  22 import math
  23 import os
  24 import sys
  25 import tempfile
  26 import yaml
  27
  28 import gi
  29 gi.require_version('RwYang', '1.0')
  30 gi.require_version('RwVnfdYang', '1.0')
  31 gi.require_version('RwNsdYang', '1.0')
  32
  33 from gi.repository import (
  34     RwYang,
  35     RwVnfdYang,
  36     RwNsdYang,
  37 )
  38
  39 import rift.package.store
  40 import rift.package.cloud_init
  41
  42 logger = logging.getLogger("rift2openmano.py")
  43
  44
  45 class VNFNotFoundError(Exception):
  46     pass
  47
  48
  49 class RiftNSD(object):
  50     model = RwYang.Model.create_libncx()
  51     model.load_module('nsd')
  52     model.load_module('rw-nsd')
  53
  54     def __init__(self, descriptor):
  55         self._nsd = descriptor
  56
  57     def __str__(self):
  58         return str(self._nsd)
  59
  60     @property
  61     def name(self):
  62         return self._nsd.name
  63
  64     @property
  65     def id(self):
  66         return self._nsd.id
  67
  68     @property
  69     def vnfd_ids(self):
  70         return [c.vnfd_id_ref for c in self._nsd.constituent_vnfd]
  71
  72     @property
  73     def constituent_vnfds(self):
  74         return self._nsd.constituent_vnfd
  75
  76     @property
  77     def vlds(self):
  78         return self._nsd.vld
  79
  80     @property
  81     def cps(self):
  82         return self._nsd.connection_point
  83
  84     @property
  85     def description(self):
  86         return self._nsd.description
  87
  88     @classmethod
  89     def from_xml_file_hdl(cls, hdl):
  90         hdl.seek(0)
  91         descriptor = RwNsdYang.YangData_Nsd_NsdCatalog_Nsd()
  92         descriptor.from_xml_v2(RiftNSD.model, hdl.read())
  93         return cls(descriptor)
  94
  95     @classmethod
  96     def from_yaml_file_hdl(cls, hdl):
  97         hdl.seek(0)
  98         descriptor = RwNsdYang.YangData_Nsd_NsdCatalog_Nsd()
  99         descriptor.from_yaml(RiftNSD.model, hdl.read())
 100         return cls(descriptor)
 101
 102     @classmethod
 103     def from_dict(cls, nsd_dict):
 104         descriptor = RwNsdYang.YangData_Nsd_NsdCatalog_Nsd.from_dict(nsd_dict)
 105         return cls(descriptor)
 106
 107
 108 class RiftVNFD(object):
 109     model = RwYang.Model.create_libncx()
 110     model.load_module('vnfd')
 111     model.load_module('rw-vnfd')
 112
 113     def __init__(self, descriptor):
 114         self._vnfd = descriptor
 115
 116     def __str__(self):
 117         return str(self._vnfd)
 118
 119     @property
 120     def id(self):
 121         return self._vnfd.id
 122
 123     @property
 124     def name(self):
 125         return self._vnfd.name
 126
 127     @property
 128     def description(self):
 129         return self._vnfd.description
 130
 131     @property
 132     def cps(self):
 133         return self._vnfd.connection_point
 134
 135     @property
 136     def vdus(self):
 137         return self._vnfd.vdu
 138
 139     @property
 140     def internal_vlds(self):
 141         return self._vnfd.internal_vld
 142
 143     @classmethod
 144     def from_xml_file_hdl(cls, hdl):
 145         hdl.seek(0)
 146         descriptor = RwVnfdYang.YangData_Vnfd_VnfdCatalog_Vnfd()
 147         descriptor.from_xml_v2(RiftVNFD.model, hdl.read())
 148         return cls(descriptor)
 149
 150     @classmethod
 151     def from_yaml_file_hdl(cls, hdl):
 152         hdl.seek(0)
 153         descriptor = RwVnfdYang.YangData_Vnfd_VnfdCatalog_Vnfd()
 154         descriptor.from_yaml(RiftVNFD.model, hdl.read())
 155         return cls(descriptor)
 156
 157     @classmethod
 158     def from_dict(cls, vnfd_dict):
 159         descriptor = RwVnfdYang.YangData_Vnfd_VnfdCatalog_Vnfd.from_dict(vnfd_dict)
 160         return cls(descriptor)
 161
 162
 163 def is_writable_directory(dir_path):
 164     """ Returns True if dir_path is writable, False otherwise
 165
 166     Arguments:
 167         dir_path - A directory path
 168     """
 169     if not os.path.exists(dir_path):
 170         raise ValueError("Directory does not exist: %s", dir_path)
 171
 172     try:
 173         testfile = tempfile.TemporaryFile(dir=dir_path)
 174         testfile.close()
 175     except OSError:
 176         return False
 177
 178     return True
 179
 180
 181 def create_vnfd_from_files(vnfd_file_hdls):
 182     """ Create a list of RiftVNFD instances from xml/yaml file handles
 183
 184     Arguments:
 185         vnfd_file_hdls - Rift VNFD XML/YAML file handles
 186
 187     Returns:
 188         A list of RiftVNFD instances
 189     """
 190     vnfd_dict = {}
 191     for vnfd_file_hdl in vnfd_file_hdls:
 192         if vnfd_file_hdl.name.endswith("yaml") or vnfd_file_hdl.name.endswith("yaml"):
 193             vnfd = RiftVNFD.from_yaml_file_hdl(vnfd_file_hdl)
 194         else:
 195             vnfd = RiftVNFD.from_xml_file_hdl(vnfd_file_hdl)
 196         vnfd_dict[vnfd.id] = vnfd
 197
 198     return vnfd_dict
 199
 200
 201 def create_nsd_from_file(nsd_file_hdl):
 202     """ Create a list of RiftNSD instances from yaml/xml file handles
 203
 204     Arguments:
 205         nsd_file_hdls - Rift NSD XML/yaml file handles
 206
 207     Returns:
 208         A list of RiftNSD instances
 209     """
 210     if nsd_file_hdl.name.endswith("yaml") or nsd_file_hdl.name.endswith("yaml"):
 211         nsd = RiftNSD.from_yaml_file_hdl(nsd_file_hdl)
 212     else:
 213         nsd = RiftNSD.from_xml_file_hdl(nsd_file_hdl)
 214     return nsd
 215
 216
 217 def ddict():
 218     return collections.defaultdict(dict)
 219
 220 def convert_vnfd_name(vnfd_name, member_idx):
 221     return vnfd_name + "__" + str(member_idx)
 222
 223
 224 def rift2openmano_nsd(rift_nsd, rift_vnfds, openmano_vnfd_ids, rift_vnfd_id=None):
 225     if rift_vnfd_id is None:
 226         for vnfd_id in rift_nsd.vnfd_ids:
 227             if vnfd_id not in rift_vnfds:
 228                 raise VNFNotFoundError("VNF id %s not provided" % vnfd_id)
 229
 230     openmano = {}
 231     openmano["name"] = rift_nsd.name
 232     if rift_vnfd_id is not None:
 233         openmano["name"] += "scale1"
 234     openmano["description"] = rift_nsd.description
 235     topology = {}
 236     openmano["topology"] = topology
 237
 238     topology["nodes"] = {}
 239     for vnfd in rift_nsd.constituent_vnfds:
 240         vnfd_id = vnfd.vnfd_id_ref
 241         if rift_vnfd_id is not None and rift_vnfd_id != vnfd_id:
 242             continue
 243         rift_vnfd = rift_vnfds[vnfd_id]
 244         member_idx = vnfd.member_vnf_index
 245         openmano_vnfd_id = openmano_vnfd_ids.get(vnfd_id,None)
 246         if openmano_vnfd_id:
 247             topology["nodes"][rift_vnfd.name + "__" + str(member_idx)] = {
 248                 "type": "VNF",
 249                 "vnf_id": openmano_vnfd_id
 250             }
 251         else:
 252             topology["nodes"][rift_vnfd.name + "__" + str(member_idx)] = {
 253                 "type": "VNF",
 254                 "VNF model": rift_vnfd.name
 255             }
 256
 257     for vld in rift_nsd.vlds:
 258         # Openmano has both bridge_net and dataplane_net models for network types
 259         # For now, since we are using openmano in developer mode lets just hardcode
 260         # to bridge_net since it won't matter anyways.
 261         # topology["nodes"][vld.name] = {"type": "network", "model": "bridge_net"}
 262         pass
 263
 264     topology["connections"] = {}
 265     for vld in rift_nsd.vlds:
 266
 267         # Create a connections entry for each external VLD
 268         topology["connections"][vld.name] = {}
 269         topology["connections"][vld.name]["nodes"] = []
 270
 271         #if vld.vim_network_name:
 272         if True:
 273             if vld.name not in topology["nodes"]:
 274                 topology["nodes"][vld.name] = {
 275                     "type": "external_network",
 276                     "model": vld.name,
 277                 }
 278
 279             # Add the external network to the list of connection points
 280             topology["connections"][vld.name]["nodes"].append(
 281                 {vld.name: "0"}
 282             )
 283         elif vld.provider_network.has_field("physical_network"):
 284             # Add the external datacenter network to the topology
 285             # node list if it isn't already added
 286             ext_net_name = vld.provider_network.physical_network
 287             ext_net_name_with_seg = ext_net_name
 288             if vld.provider_network.has_field("segmentation_id"):
 289                 ext_net_name_with_seg += ":{}".format(vld.provider_network.segmentation_id)
 290
 291             if ext_net_name not in topology["nodes"]:
 292                 topology["nodes"][ext_net_name] = {
 293                     "type": "external_network",
 294                     "model": ext_net_name_with_seg,
 295                 }
 296
 297             # Add the external network to the list of connection points
 298             topology["connections"][vld.name]["nodes"].append(
 299                 {ext_net_name: "0"}
 300             )
 301
 302
 303         for vnfd_cp in vld.vnfd_connection_point_ref:
 304
 305             # Get the RIFT VNF for this external VLD connection point
 306             vnfd = rift_vnfds[vnfd_cp.vnfd_id_ref]
 307
 308             # For each VNF in this connection, use the same interface name
 309             topology["connections"][vld.name]["type"] = "link"
 310             # Vnf ref is the vnf name with the member_vnf_idx appended
 311             member_idx = vnfd_cp.member_vnf_index_ref
 312             vnf_ref = vnfd.name + "__" + str(member_idx)
 313             topology["connections"][vld.name]["nodes"].append(
 314                 {
 315                     vnf_ref: vnfd_cp.vnfd_connection_point_ref
 316                 }
 317             )
 318     return openmano
 319
 320 def rift2openmano_vnfd_nsd(rift_nsd, rift_vnfds, rift_vnfd_id):
 321
 322     if rift_vnfd_id not in rift_vnfds:
 323         print ("IDS", rift_vnfds)
 324         raise VNFNotFoundError("VNF id %s not provided" % rift_vnfd_id)
 325
 326     openmano_vnfd_nsd = {}
 327     openmano_vnfd_nsd["name"] = rift_vnfd_id+'-'+'scaling_group'
 328     openmano_vnfd_nsd["description"] = "Scaling Group"
 329     topology = {}
 330     openmano_vnfd_nsd["topology"] = topology
 331
 332     topology["nodes"] = {}
 333     openmano_vnfd_nsd["topology"] = topology
 334     topology["connections"] = {}
 335     topology["nodes"] = {}
 336     topology["nodes"] = {
 337         "type": "VNF",
 338         "vnf_id": rift_vnfd_id
 339     }
 340
 341     for vld in rift_nsd.vlds:
 342
 343         # Create a connections entry for each external VLD
 344         topology["connections"][vld.name] = {}
 345         topology["connections"][vld.name]["nodes"] = []
 346
 347     for vnfd_cp in vld.vnfd_connection_point_ref:
 348         if not rit_vnfd_id in vnfd_cp.vnfd_id_ref:
 349             continue
 350         if rift_vnfd_id in vnfd_cp.vnfd_id_ref:
 351             # Get the RIFT VNF for this external VLD connection point
 352             vnfd = rift_vnfds[vnfd_cp.vnfd_id_ref]
 353             # For each VNF in this connection, use the same interface name
 354             topology["connections"][vld.name]["type"] = "link"
 355             # Vnf ref is the vnf name with the member_vnf_idx appended
 356             member_idx = vnfd_cp.member_vnf_index_ref
 357             vnf_ref = rift_vnfd_id + "__" + str(member_idx)
 358             topology["connections"][vld.name]["nodes"].append(
 359                 {
 360                     vnf_ref: vnfd_cp.vnfd_connection_point_ref
 361                 }
 362             )
 363     return openmano_vnfd_nsd
 364
 365 def cloud_init(rift_vnfd_id, vdu):
 366     """ Populate cloud_init with script from
 367          either the inline contents or from the file provided
 368     """
 369     vnfd_package_store = rift.package.store.VnfdPackageFilesystemStore(logger)
 370
 371     cloud_init_msg = None
 372     if vdu.cloud_init is not None:
 373         logger.debug("cloud_init script provided inline %s", vdu.cloud_init)
 374         cloud_init_msg = vdu.cloud_init
 375     elif vdu.cloud_init_file is not None:
 376         # Get cloud-init script contents from the file provided in the cloud_init_file param
 377         logger.debug("cloud_init script provided in file %s", vdu.cloud_init_file)
 378         filename = vdu.cloud_init_file
 379         vnfd_package_store.refresh()
 380         stored_package = vnfd_package_store.get_package(rift_vnfd_id)
 381         cloud_init_extractor = rift.package.cloud_init.PackageCloudInitExtractor(logger)
 382         try:
 383             cloud_init_msg = cloud_init_extractor.read_script(stored_package, filename)
 384         except rift.package.cloud_init.CloudInitExtractionError as e:
 385             raise ValueError(e)
 386     else:
 387         logger.debug("VDU translation: cloud-init script not provided")
 388         return
 389
 390     logger.debug("Current cloud init msg is {}".format(cloud_init_msg))
 391     return cloud_init_msg
 392
 393 def config_file_init(rift_vnfd_id, vdu, cfg_file):
 394     """ Populate config file init with file provided
 395     """
 396     vnfd_package_store = rift.package.store.VnfdPackageFilesystemStore(logger)
 397
 398     # Get script contents from the file provided in the cloud_init directory
 399     logger.debug("config file script provided in file {}".format(cfg_file))
 400     filename = cfg_file
 401     vnfd_package_store.refresh()
 402     stored_package = vnfd_package_store.get_package(rift_vnfd_id)
 403     cloud_init_extractor = rift.package.cloud_init.PackageCloudInitExtractor(logger)
 404     try:
 405         cfg_file_msg = cloud_init_extractor.read_script(stored_package, filename)
 406     except rift.package.cloud_init.CloudInitExtractionError as e:
 407         raise ValueError(e)
 408
 409     logger.debug("Current config file msg is {}".format(cfg_file_msg))
 410     return cfg_file_msg
 411
 412 def rift2openmano_vnfd(rift_vnfd, rift_nsd):
 413     openmano_vnf = {"vnf":{}}
 414     vnf = openmano_vnf["vnf"]
 415
 416     vnf["name"] = rift_vnfd.name
 417     vnf["description"] = rift_vnfd.description
 418
 419     vnf["external-connections"] = []
 420
 421     def find_vdu_and_ext_if_by_cp_ref(cp_ref_name):
 422         for vdu in rift_vnfd.vdus:
 423             for ext_if in vdu.external_interface:
 424                 if ext_if.vnfd_connection_point_ref == cp_ref_name:
 425                     return vdu, ext_if
 426
 427         raise ValueError("External connection point reference %s not found" % cp_ref_name)
 428
 429     def find_vdu_and_int_if_by_cp_ref(cp_ref_id):
 430         for vdu in rift_vnfd.vdus:
 431             for int_if in vdu.internal_interface:
 432                 if int_if.vdu_internal_connection_point_ref == cp_ref_id:
 433                     return vdu, int_if
 434
 435         raise ValueError("Internal connection point reference %s not found" % cp_ref_id)
 436
 437     def rift2openmano_if_type(ext_if):
 438
 439         cp_ref_name = ext_if.vnfd_connection_point_ref
 440         for vld in rift_nsd.vlds:
 441
 442             # if it is an explicit mgmt_network then check if the given
 443             # cp_ref is a part of it
 444             if not vld.mgmt_network:
 445                 continue
 446
 447             for vld_cp in vld.vnfd_connection_point_ref:
 448                 if vld_cp.vnfd_connection_point_ref == cp_ref_name:
 449                     return "mgmt"
 450
 451
 452         rift_type = ext_if.virtual_interface.type_yang
 453         # Retaining it for backward compatibility!
 454         if rift_type == "OM_MGMT":
 455             return "mgmt"
 456         elif rift_type == "VIRTIO" or rift_type == "E1000":
 457             return "bridge"
 458         else:
 459             return "data"
 460
 461     def rift2openmano_vif(rift_type):
 462         if rift_type == "VIRTIO":
 463             return "virtio"
 464         elif rift_type == "E1000":
 465             return "e1000"
 466         else:
 467             raise ValueError("VDU Virtual Interface type {} not supported".format(rift_type))
 468
 469     # Add all external connections
 470     for cp in rift_vnfd.cps:
 471         # Find the VDU and and external interface for this connection point
 472         vdu, ext_if = find_vdu_and_ext_if_by_cp_ref(cp.name)
 473         connection = {
 474             "name": cp.name,
 475             "type": rift2openmano_if_type(ext_if),
 476             "VNFC": vdu.name,
 477             "local_iface_name": ext_if.name,
 478             "description": "%s iface on VDU %s" % (ext_if.name, vdu.name),
 479         }
 480
 481         vnf["external-connections"].append(connection)
 482
 483     # Add all internal networks
 484     for vld in rift_vnfd.internal_vlds:
 485         connection = {
 486             "name": vld.name,
 487             "description": vld.description,
 488             "type": "bridge",
 489             "elements": [],
 490         }
 491
 492         # Add the specific VDU connection points
 493         for int_cp in vld.internal_connection_point:
 494             vdu, int_if = find_vdu_and_int_if_by_cp_ref(int_cp.id_ref)
 495             connection["elements"].append({
 496                 "VNFC": vdu.name,
 497                 "local_iface_name": int_if.name,
 498             })
 499         if "internal-connections" not in vnf:
 500             vnf["internal-connections"] = []
 501
 502         vnf["internal-connections"].append(connection)
 503
 504     # Add VDU's
 505     vnf["VNFC"] = []
 506     for vdu in rift_vnfd.vdus:
 507         vnfc = {
 508             "name": vdu.name,
 509             "description": vdu.name,
 510             "bridge-ifaces": [],
 511         }
 512
 513         if vdu.vm_flavor.has_field("storage_gb") and vdu.vm_flavor.storage_gb:
 514             vnfc["disk"] = vdu.vm_flavor.storage_gb
 515
 516         if vdu.has_field("image"):
 517             if os.path.isabs(vdu.image):
 518                 vnfc["VNFC image"] = vdu.image
 519             else:
 520                 vnfc["image name"] = vdu.image
 521                 if vdu.has_field("image_checksum"):
 522                     vnfc["image checksum"] = vdu.image_checksum
 523
 524         dedicated_int = False
 525         for intf in list(vdu.internal_interface) + list(vdu.external_interface):
 526             if intf.virtual_interface.type_yang in ["SR_IOV", "PCI_PASSTHROUGH"]:
 527                 dedicated_int = True
 528         if vdu.guest_epa.has_field("numa_node_policy") or dedicated_int:
 529             vnfc["numas"] = [{
 530                 "memory": max(int(vdu.vm_flavor.memory_mb/1024), 1),
 531                 "interfaces":[],
 532             }]
 533             numa_node_policy = vdu.guest_epa.numa_node_policy
 534             if numa_node_policy.has_field("node"):
 535                 numa_node = numa_node_policy.node[0]
 536
 537                 if numa_node.has_field("paired_threads"):
 538                     if numa_node.paired_threads.has_field("num_paired_threads"):
 539                         vnfc["numas"][0]["paired-threads"] = numa_node.paired_threads.num_paired_threads
 540                     if len(numa_node.paired_threads.paired_thread_ids) > 0:
 541                         vnfc["numas"][0]["paired-threads-id"] = []
 542                         for pair in numa_node.paired_threads.paired_thread_ids:
 543                             vnfc["numas"][0]["paired-threads-id"].append(
 544                                 [pair.thread_a, pair.thread_b]
 545                             )
 546
 547             else:
 548                 if vdu.vm_flavor.has_field("vcpu_count"):
 549                     vnfc["numas"][0]["cores"] = max(vdu.vm_flavor.vcpu_count, 1)
 550
 551         else:
 552             if vdu.vm_flavor.has_field("vcpu_count") and vdu.vm_flavor.vcpu_count:
 553                 vnfc["vcpus"] = vdu.vm_flavor.vcpu_count
 554
 555             if vdu.vm_flavor.has_field("memory_mb") and vdu.vm_flavor.memory_mb:
 556                 vnfc["ram"] = vdu.vm_flavor.memory_mb
 557
 558
 559         if vdu.has_field("hypervisor_epa"):
 560             vnfc["hypervisor"] = {}
 561             if vdu.hypervisor_epa.has_field("type"):
 562                 if vdu.hypervisor_epa.type_yang == "REQUIRE_KVM":
 563                     vnfc["hypervisor"]["type"] = "QEMU-kvm"
 564
 565             if vdu.hypervisor_epa.has_field("version"):
 566                 vnfc["hypervisor"]["version"] = vdu.hypervisor_epa.version
 567
 568         if vdu.has_field("host_epa"):
 569             vnfc["processor"] = {}
 570             if vdu.host_epa.has_field("om_cpu_model_string"):
 571                 vnfc["processor"]["model"] = vdu.host_epa.om_cpu_model_string
 572             if vdu.host_epa.has_field("om_cpu_feature"):
 573                 vnfc["processor"]["features"] = []
 574                 for feature in vdu.host_epa.om_cpu_feature:
 575                     vnfc["processor"]["features"].append(feature.feature)
 576
 577         if vdu.has_field("volumes"):
 578             vnfc["devices"] = []
 579             # Sort volumes as device-list is implictly ordered by Openmano
 580             newvollist = sorted(vdu.volumes, key=lambda k: k.name)
 581             for iter_num, volume in enumerate(newvollist):
 582                 if iter_num == 0:
 583                     # Convert the first volume to vnfc.image
 584                     if os.path.isabs(volume.image):
 585                         vnfc["VNFC image"] = volume.image
 586                     else:
 587                         vnfc["image name"] = volume.image
 588                         if volume.has_field("image_checksum"):
 589                             vnfc["image checksum"] = volume.image_checksum
 590                 else:
 591                     # Add Openmano devices
 592                     device = {}
 593                     device["type"] = volume.device_type
 594                     device["image"] = volume.image
 595                     vnfc["devices"].append(device)
 596
 597         vnfc_boot_data_init = False
 598         if vdu.has_field("cloud_init") or vdu.has_field("cloud_init_file"):
 599             vnfc['boot-data'] = dict()
 600             vnfc_boot_data_init = True
 601             vnfc['boot-data']['user-data'] = cloud_init(rift_vnfd.id, vdu)
 602
 603         if vdu.has_field("supplemental_boot_data"):
 604             if vdu.supplemental_boot_data.has_field('boot_data_drive'):
 605                 if vdu.supplemental_boot_data.boot_data_drive is True:
 606                     if vnfc_boot_data_init is False:
 607                         vnfc['boot-data'] = dict()
 608                         vnfc_boot_data_init = True
 609                     vnfc['boot-data']['boot-data-drive'] = vdu.supplemental_boot_data.boot_data_drive
 610
 611             if vdu.supplemental_boot_data.has_field('config_file'):
 612                 om_cfgfile_list = list()
 613                 for custom_config_file in vdu.supplemental_boot_data.config_file:
 614                     cfg_source = config_file_init(rift_vnfd.id, vdu, custom_config_file.source)
 615                     om_cfgfile_list.append({"dest":custom_config_file.dest, "content": cfg_source})
 616                 vnfc['boot-data']['config-files'] = om_cfgfile_list
 617
 618
 619         vnf["VNFC"].append(vnfc)
 620
 621         for int_if in list(vdu.internal_interface) + list(vdu.external_interface):
 622             intf = {
 623                 "name": int_if.name,
 624             }
 625             if int_if.virtual_interface.has_field("vpci"):
 626                 intf["vpci"] = int_if.virtual_interface.vpci
 627
 628             if int_if.virtual_interface.type_yang in ["VIRTIO", "E1000"]:
 629                 intf["model"] = rift2openmano_vif(int_if.virtual_interface.type_yang)
 630                 vnfc["bridge-ifaces"].append(intf)
 631
 632             elif int_if.virtual_interface.type_yang in ["OM_MGMT"]:
 633                 vnfc["bridge-ifaces"].append(intf)
 634
 635             elif int_if.virtual_interface.type_yang == "SR_IOV":
 636                 intf["bandwidth"] = "10 Gbps"
 637                 intf["dedicated"] = "no"
 638                 vnfc["numas"][0]["interfaces"].append(intf)
 639
 640             elif int_if.virtual_interface.type_yang == "PCI_PASSTHROUGH":
 641                 intf["bandwidth"] = "10 Gbps"
 642                 intf["dedicated"] = "yes"
 643                 if "interfaces" not in vnfc["numas"][0]:
 644                     vnfc["numas"][0]["interfaces"] = []
 645                 vnfc["numas"][0]["interfaces"].append(intf)
 646             else:
 647                 raise ValueError("Interface type %s not supported" % int_if.virtual_interface)
 648
 649             if int_if.virtual_interface.has_field("bandwidth"):
 650                 if int_if.virtual_interface.bandwidth != 0:
 651                     bps = int_if.virtual_interface.bandwidth
 652
 653                     # Calculate the bits per second conversion
 654                     for x in [('M', 1000000), ('G', 1000000000)]:
 655                         if bps/x[1] >= 1:
 656                             intf["bandwidth"] = "{} {}bps".format(math.ceil(bps/x[1]), x[0])
 657
 658         # Sort bridge-ifaces-list TODO sort others
 659         newlist = sorted(vnfc["bridge-ifaces"], key=lambda k: k['name'])
 660         vnfc["bridge-ifaces"] = newlist
 661
 662     return openmano_vnf
 663
 664
 665 def parse_args(argv=sys.argv[1:]):
 666     """ Parse the command line arguments
 667
 668     Arguments:
 669         arv - The list of arguments to parse
 670
 671     Returns:
 672         Argparse Namespace instance
 673     """
 674     parser = argparse.ArgumentParser()
 675     parser.add_argument(
 676         '-o', '--outdir',
 677         default='-',
 678         help="Directory to output converted descriptors. Default is stdout",
 679     )
 680
 681     parser.add_argument(
 682         '-n', '--nsd-file-hdl',
 683         metavar="nsd_file",
 684         type=argparse.FileType('r'),
 685         help="Rift NSD Descriptor File",
 686     )
 687
 688     parser.add_argument(
 689         '-v', '--vnfd-file-hdls',
 690         metavar="vnfd_file",
 691         action='append',
 692         type=argparse.FileType('r'),
 693         help="Rift VNFD Descriptor File",
 694     )
 695
 696     args = parser.parse_args(argv)
 697
 698     if not os.path.exists(args.outdir):
 699         os.makedirs(args.outdir)
 700
 701     if not is_writable_directory(args.outdir):
 702         logging.error("Directory %s is not writable", args.outdir)
 703         sys.exit(1)
 704
 705     return args
 706
 707
 708 def write_yaml_to_file(name, outdir, desc_dict):
 709     file_name = "%s.yaml" % name
 710     yaml_str = yaml.dump(desc_dict)
 711     if outdir == "-":
 712         sys.stdout.write(yaml_str)
 713         return
 714
 715     file_path = os.path.join(outdir, file_name)
 716     dir_path = os.path.dirname(file_path)
 717     if not os.path.exists(dir_path):
 718         os.makedirs(dir_path)
 719
 720     with open(file_path, "w") as hdl:
 721         hdl.write(yaml_str)
 722
 723     logger.info("Wrote descriptor to %s", file_path)
 724
 725
 726 def main(argv=sys.argv[1:]):
 727     args = parse_args(argv)
 728     nsd = None
 729     rift_vnfd_id = 'test_vnfd'
 730     openmano_vnfr_ids = dict()
 731     vnf_dict = None
 732     if args.vnfd_file_hdls is not None:
 733         vnf_dict = create_vnfd_from_files(args.vnfd_file_hdls)
 734
 735     for vnfd in vnf_dict:
 736         openmano_vnfr_ids[vnfd] = vnfd
 737
 738     if args.nsd_file_hdl is not None:
 739         nsd = create_nsd_from_file(args.nsd_file_hdl)
 740
 741     openmano_nsd = rift2openmano_nsd(nsd, vnf_dict, openmano_vnfr_ids,rift_vnfd_id)
 742     vnfd_nsd = rift2openmano_vnfd_nsd(nsd, vnf_dict, openmano_vnfr_ids, rift_vnfd_id)
 743     write_yaml_to_file(openmano_nsd["name"], args.outdir, openmano_nsd)
 744     write_yaml_to_file(vnfd_nsd["name"], args.outdir, vnfd_nsd)
 745     for vnf in vnf_dict.values():
 746         openmano_vnf = rift2openmano_vnfd(vnf, nsd)
 747         write_yaml_to_file(openmano_vnf["vnf"]["name"], args.outdir, openmano_vnf)
 748
 749
 750 if __name__ == "__main__":
 751     logging.basicConfig(level=logging.WARNING)
 752     main()