osm_nbi/instance_topics.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #    http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  12 # implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 # import logging
  17 from uuid import uuid4
  18 from http import HTTPStatus
  19 from time import time
  20 from copy import copy, deepcopy
  21 from osm_nbi.validation import validate_input, ValidationError, ns_instantiate, ns_action, ns_scale, nsi_instantiate
  22 from osm_nbi.base_topic import BaseTopic, EngineException, get_iterable
  23 # from descriptor_topics import DescriptorTopic
  24 from yaml import safe_dump
  25 from osm_common.dbbase import DbException
  26 from osm_common.msgbase import MsgException
  27 from osm_common.fsbase import FsException
  28 from re import match  # For checking that additional parameter names are valid Jinja2 identifiers
  29
  30 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
  31
  32
  33 class NsrTopic(BaseTopic):
  34     topic = "nsrs"
  35     topic_msg = "ns"
  36     schema_new = ns_instantiate
  37
  38     def __init__(self, db, fs, msg, auth):
  39         BaseTopic.__init__(self, db, fs, msg, auth)
  40
  41     def _check_descriptor_dependencies(self, session, descriptor):
  42         """
  43         Check that the dependent descriptors exist on a new descriptor or edition
  44         :param session: client session information
  45         :param descriptor: descriptor to be inserted or edit
  46         :return: None or raises exception
  47         """
  48         if not descriptor.get("nsdId"):
  49             return
  50         nsd_id = descriptor["nsdId"]
  51         if not self.get_item_list(session, "nsds", {"id": nsd_id}):
  52             raise EngineException("Descriptor error at nsdId='{}' references a non exist nsd".format(nsd_id),
  53                                   http_code=HTTPStatus.CONFLICT)
  54
  55     @staticmethod
  56     def format_on_new(content, project_id=None, make_public=False):
  57         BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
  58         content["_admin"]["nsState"] = "NOT_INSTANTIATED"
  59         return None
  60
  61     def check_conflict_on_del(self, session, _id, db_content):
  62         """
  63         Check that NSR is not instantiated
  64         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
  65         :param _id: nsr internal id
  66         :param db_content: The database content of the nsr
  67         :return: None or raises EngineException with the conflict
  68         """
  69         if session["force"]:
  70             return
  71         nsr = db_content
  72         if nsr["_admin"].get("nsState") == "INSTANTIATED":
  73             raise EngineException("nsr '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
  74                                   "Launch 'terminate' operation first; or force deletion".format(_id),
  75                                   http_code=HTTPStatus.CONFLICT)
  76
  77     def delete_extra(self, session, _id, db_content):
  78         """
  79         Deletes associated nslcmops and vnfrs from database. Deletes associated filesystem.
  80          Set usageState of pdu, vnfd, nsd
  81         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
  82         :param _id: server internal id
  83         :param db_content: The database content of the descriptor
  84         :return: None if ok or raises EngineException with the problem
  85         """
  86         self.fs.file_delete(_id, ignore_non_exist=True)
  87         self.db.del_list("nslcmops", {"nsInstanceId": _id})
  88         self.db.del_list("vnfrs", {"nsr-id-ref": _id})
  89
  90         # set all used pdus as free
  91         self.db.set_list("pdus", {"_admin.usage.nsr_id": _id},
  92                          {"_admin.usageState": "NOT_IN_USE", "_admin.usage": None})
  93
  94         # Set NSD usageState
  95         nsr = db_content
  96         used_nsd_id = nsr.get("nsd-id")
  97         if used_nsd_id:
  98             # check if used by another NSR
  99             nsrs_list = self.db.get_one("nsrs", {"nsd-id": used_nsd_id},
 100                                         fail_on_empty=False, fail_on_more=False)
 101             if not nsrs_list:
 102                 self.db.set_one("nsds", {"_id": used_nsd_id}, {"_admin.usageState": "NOT_IN_USE"})
 103
 104         # Set VNFD usageState
 105         used_vnfd_id_list = nsr.get("vnfd-id")
 106         if used_vnfd_id_list:
 107             for used_vnfd_id in used_vnfd_id_list:
 108                 # check if used by another NSR
 109                 nsrs_list = self.db.get_one("nsrs", {"vnfd-id": used_vnfd_id},
 110                                             fail_on_empty=False, fail_on_more=False)
 111                 if not nsrs_list:
 112                     self.db.set_one("vnfds", {"_id": used_vnfd_id}, {"_admin.usageState": "NOT_IN_USE"})
 113
 114     @staticmethod
 115     def _format_ns_request(ns_request):
 116         formated_request = copy(ns_request)
 117         formated_request.pop("additionalParamsForNs", None)
 118         formated_request.pop("additionalParamsForVnf", None)
 119         return formated_request
 120
 121     @staticmethod
 122     def _format_addional_params(ns_request, member_vnf_index=None, descriptor=None):
 123         """
 124         Get and format user additional params for NS or VNF
 125         :param ns_request: User instantiation additional parameters
 126         :param member_vnf_index: None for extract NS params, or member_vnf_index to extract VNF params
 127         :param descriptor: If not None it check that needed parameters of descriptor are supplied
 128         :return: a formated copy of additional params or None if not supplied
 129         """
 130         additional_params = None
 131         if not member_vnf_index:
 132             additional_params = copy(ns_request.get("additionalParamsForNs"))
 133             where_ = "additionalParamsForNs"
 134         elif ns_request.get("additionalParamsForVnf"):
 135             for additionalParamsForVnf in get_iterable(ns_request.get("additionalParamsForVnf")):
 136                 if additionalParamsForVnf["member-vnf-index"] == member_vnf_index:
 137                     additional_params = copy(additionalParamsForVnf.get("additionalParams"))
 138                     where_ = "additionalParamsForVnf[member-vnf-index={}]".format(
 139                         additionalParamsForVnf["member-vnf-index"])
 140                     break
 141         if additional_params:
 142             for k, v in additional_params.items():
 143                 # BEGIN Check that additional parameter names are valid Jinja2 identifiers
 144                 if not match('^[a-zA-Z_][a-zA-Z0-9_]*$', k):
 145                     raise EngineException("Invalid param name at {}:{}. Must contain only alphanumeric characters "
 146                                           "and underscores, and cannot start with a digit"
 147                                           .format(where_, k))
 148                 # END Check that additional parameter names are valid Jinja2 identifiers
 149                 if not isinstance(k, str):
 150                     raise EngineException("Invalid param at {}:{}. Only string keys are allowed".format(where_, k))
 151                 if "." in k or "$" in k:
 152                     raise EngineException("Invalid param at {}:{}. Keys must not contain dots or $".format(where_, k))
 153                 if isinstance(v, (dict, tuple, list)):
 154                     additional_params[k] = "!!yaml " + safe_dump(v)
 155
 156         if descriptor:
 157             # check that enough parameters are supplied for the initial-config-primitive
 158             # TODO: check for cloud-init
 159             if member_vnf_index:
 160                 if descriptor.get("vnf-configuration"):
 161                     for initial_primitive in get_iterable(
 162                             descriptor["vnf-configuration"].get("initial-config-primitive")):
 163                         for param in get_iterable(initial_primitive.get("parameter")):
 164                             if param["value"].startswith("<") and param["value"].endswith(">"):
 165                                 if param["value"] in ("<rw_mgmt_ip>", "<VDU_SCALE_INFO>"):
 166                                     continue
 167                                 if not additional_params or param["value"][1:-1] not in additional_params:
 168                                     raise EngineException("Parameter '{}' needed for vnfd[id={}]:vnf-configuration:"
 169                                                           "initial-config-primitive[name={}] not supplied".
 170                                                           format(param["value"], descriptor["id"],
 171                                                                  initial_primitive["name"]))
 172
 173         return additional_params
 174
 175     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
 176         """
 177         Creates a new nsr into database. It also creates needed vnfrs
 178         :param rollback: list to append the created items at database in case a rollback must be done
 179         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 180         :param indata: params to be used for the nsr
 181         :param kwargs: used to override the indata descriptor
 182         :param headers: http request headers
 183         :return: the _id of nsr descriptor created at database. Or an exception of type
 184             EngineException, ValidationError, DbException, FsException, MsgException.
 185             Note: Exceptions are not captured on purpose. They should be captured at called
 186         """
 187
 188         try:
 189             step = "checking quotas"
 190             self.check_quota(session)
 191
 192             step = "validating input parameters"
 193             ns_request = self._remove_envelop(indata)
 194             # Override descriptor with query string kwargs
 195             self._update_input_with_kwargs(ns_request, kwargs)
 196             self._validate_input_new(ns_request, session["force"])
 197
 198             # look for nsr
 199             step = "getting nsd id='{}' from database".format(ns_request.get("nsdId"))
 200             _filter = self._get_project_filter(session)
 201             _filter["_id"] = ns_request["nsdId"]
 202             nsd = self.db.get_one("nsds", _filter)
 203             del _filter["_id"]
 204
 205             nsr_id = str(uuid4())
 206
 207             now = time()
 208             step = "filling nsr from input data"
 209             nsr_descriptor = {
 210                 "name": ns_request["nsName"],
 211                 "name-ref": ns_request["nsName"],
 212                 "short-name": ns_request["nsName"],
 213                 "admin-status": "ENABLED",
 214                 "nsd": nsd,
 215                 "datacenter": ns_request["vimAccountId"],
 216                 "resource-orchestrator": "osmopenmano",
 217                 "description": ns_request.get("nsDescription", ""),
 218                 "constituent-vnfr-ref": [],
 219
 220                 "operational-status": "init",    # typedef ns-operational-
 221                 "config-status": "init",         # typedef config-states
 222                 "detailed-status": "scheduled",
 223
 224                 "orchestration-progress": {},
 225                 # {"networks": {"active": 0, "total": 0}, "vms": {"active": 0, "total": 0}},
 226
 227                 "create-time": now,
 228                 "nsd-name-ref": nsd["name"],
 229                 "operational-events": [],   # "id", "timestamp", "description", "event",
 230                 "nsd-ref": nsd["id"],
 231                 "nsd-id": nsd["_id"],
 232                 "vnfd-id": [],
 233                 "instantiate_params": self._format_ns_request(ns_request),
 234                 "additionalParamsForNs": self._format_addional_params(ns_request),
 235                 "ns-instance-config-ref": nsr_id,
 236                 "id": nsr_id,
 237                 "_id": nsr_id,
 238                 # "input-parameter": xpath, value,
 239                 "ssh-authorized-key": ns_request.get("ssh_keys"),  # TODO remove
 240             }
 241             ns_request["nsr_id"] = nsr_id
 242             # Create vld
 243             if nsd.get("vld"):
 244                 nsr_descriptor["vld"] = []
 245                 for nsd_vld in nsd.get("vld"):
 246                     nsr_descriptor["vld"].append(
 247                         {key: nsd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in nsd_vld})
 248
 249             # Create VNFR
 250             needed_vnfds = {}
 251             for member_vnf in nsd.get("constituent-vnfd", ()):
 252                 vnfd_id = member_vnf["vnfd-id-ref"]
 253                 step = "getting vnfd id='{}' constituent-vnfd='{}' from database".format(
 254                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 255                 if vnfd_id not in needed_vnfds:
 256                     # Obtain vnfd
 257                     _filter["id"] = vnfd_id
 258                     vnfd = self.db.get_one("vnfds", _filter, fail_on_empty=True, fail_on_more=True)
 259                     del _filter["id"]
 260                     vnfd.pop("_admin")
 261                     needed_vnfds[vnfd_id] = vnfd
 262                     nsr_descriptor["vnfd-id"].append(vnfd["_id"])
 263                 else:
 264                     vnfd = needed_vnfds[vnfd_id]
 265                 step = "filling vnfr  vnfd-id='{}' constituent-vnfd='{}'".format(
 266                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 267                 vnfr_id = str(uuid4())
 268                 vnfr_descriptor = {
 269                     "id": vnfr_id,
 270                     "_id": vnfr_id,
 271                     "nsr-id-ref": nsr_id,
 272                     "member-vnf-index-ref": member_vnf["member-vnf-index"],
 273                     "additionalParamsForVnf": self._format_addional_params(ns_request, member_vnf["member-vnf-index"],
 274                                                                            vnfd),
 275                     "created-time": now,
 276                     # "vnfd": vnfd,        # at OSM model.but removed to avoid data duplication TODO: revise
 277                     "vnfd-ref": vnfd_id,
 278                     "vnfd-id": vnfd["_id"],    # not at OSM model, but useful
 279                     "vim-account-id": None,
 280                     "vdur": [],
 281                     "connection-point": [],
 282                     "ip-address": None,  # mgmt-interface filled by LCM
 283                 }
 284
 285                 # Create vld
 286                 if vnfd.get("internal-vld"):
 287                     vnfr_descriptor["vld"] = []
 288                     for vnfd_vld in vnfd.get("internal-vld"):
 289                         vnfr_descriptor["vld"].append(
 290                             {key: vnfd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in
 291                              vnfd_vld})
 292
 293                 vnfd_mgmt_cp = vnfd["mgmt-interface"].get("cp")
 294                 for cp in vnfd.get("connection-point", ()):
 295                     vnf_cp = {
 296                         "name": cp["name"],
 297                         "connection-point-id": cp.get("id"),
 298                         "id": cp.get("id"),
 299                         # "ip-address", "mac-address" # filled by LCM
 300                         # vim-id  # TODO it would be nice having a vim port id
 301                     }
 302                     vnfr_descriptor["connection-point"].append(vnf_cp)
 303
 304                 # Create k8s-cluster information
 305                 if vnfd.get("k8s-cluster"):
 306                     vnfr_descriptor["k8s-cluster"] = vnfd["k8s-cluster"]
 307                     for net in get_iterable(vnfr_descriptor["k8s-cluster"].get("nets")):
 308                         if net.get("external-connection-point-ref"):
 309                             for nsd_vld in get_iterable(nsd.get("vld")):
 310                                 for nsd_vld_cp in get_iterable(nsd_vld.get("vnfd-connection-point-ref")):
 311                                     if nsd_vld_cp.get("vnfd-connection-point-ref") == \
 312                                             net["external-connection-point-ref"] and \
 313                                             nsd_vld_cp.get("member-vnf-index-ref") == member_vnf["member-vnf-index"]:
 314                                         net["ns-vld-id"] = nsd_vld["id"]
 315                                         break
 316                                 else:
 317                                     continue
 318                                 break
 319                         elif net.get("internal-connection-point-ref"):
 320                             for vnfd_ivld in get_iterable(vnfd.get("internal-vld")):
 321                                 for vnfd_ivld_icp in get_iterable(vnfd_ivld.get("internal-connection-point")):
 322                                     if vnfd_ivld_icp.get("id-ref") == net["internal-connection-point-ref"]:
 323                                         net["vnf-vld-id"] = vnfd_ivld["id"]
 324                                         break
 325                                 else:
 326                                     continue
 327                                 break
 328                 # update kdus
 329                 for kdu in get_iterable(vnfd.get("kdu")):
 330                     kdur = {
 331                         "kdu-name": kdu["name"],
 332                         # TODO      "name": ""     Name of the VDU in the VIM
 333                         "ip-address": None,  # mgmt-interface filled by LCM
 334                         "k8s-cluster": {}
 335                     }
 336                     if not vnfr_descriptor.get("kdur"):
 337                         vnfr_descriptor["kdur"] = []
 338                     vnfr_descriptor["kdur"].append(kdur)
 339
 340                 for vdu in vnfd.get("vdu", ()):
 341                     vdur = {
 342                         "vdu-id-ref": vdu["id"],
 343                         # TODO      "name": ""     Name of the VDU in the VIM
 344                         "ip-address": None,  # mgmt-interface filled by LCM
 345                         # "vim-id", "flavor-id", "image-id", "management-ip" # filled by LCM
 346                         "internal-connection-point": [],
 347                         "interfaces": [],
 348                     }
 349                     if vdu.get("pdu-type"):
 350                         vdur["pdu-type"] = vdu["pdu-type"]
 351                     # TODO volumes: name, volume-id
 352                     for icp in vdu.get("internal-connection-point", ()):
 353                         vdu_icp = {
 354                             "id": icp["id"],
 355                             "connection-point-id": icp["id"],
 356                             "name": icp.get("name"),
 357                             # "ip-address", "mac-address" # filled by LCM
 358                             # vim-id  # TODO it would be nice having a vim port id
 359                         }
 360                         vdur["internal-connection-point"].append(vdu_icp)
 361                     for iface in vdu.get("interface", ()):
 362                         vdu_iface = {
 363                             "name": iface.get("name"),
 364                             # "ip-address", "mac-address" # filled by LCM
 365                             # vim-id  # TODO it would be nice having a vim port id
 366                         }
 367                         if vnfd_mgmt_cp and iface.get("external-connection-point-ref") == vnfd_mgmt_cp:
 368                             vdu_iface["mgmt-vnf"] = True
 369                         if iface.get("mgmt-interface"):
 370                             vdu_iface["mgmt-interface"] = True  # TODO change to mgmt-vdu
 371
 372                         # look for network where this interface is connected
 373                         if iface.get("external-connection-point-ref"):
 374                             for nsd_vld in get_iterable(nsd.get("vld")):
 375                                 for nsd_vld_cp in get_iterable(nsd_vld.get("vnfd-connection-point-ref")):
 376                                     if nsd_vld_cp.get("vnfd-connection-point-ref") == \
 377                                             iface["external-connection-point-ref"] and \
 378                                             nsd_vld_cp.get("member-vnf-index-ref") == member_vnf["member-vnf-index"]:
 379                                         vdu_iface["ns-vld-id"] = nsd_vld["id"]
 380                                         break
 381                                 else:
 382                                     continue
 383                                 break
 384                         elif iface.get("internal-connection-point-ref"):
 385                             for vnfd_ivld in get_iterable(vnfd.get("internal-vld")):
 386                                 for vnfd_ivld_icp in get_iterable(vnfd_ivld.get("internal-connection-point")):
 387                                     if vnfd_ivld_icp.get("id-ref") == iface["internal-connection-point-ref"]:
 388                                         vdu_iface["vnf-vld-id"] = vnfd_ivld["id"]
 389                                         break
 390                                 else:
 391                                     continue
 392                                 break
 393
 394                         vdur["interfaces"].append(vdu_iface)
 395                     count = vdu.get("count", 1)
 396                     if count is None:
 397                         count = 1
 398                     count = int(count)    # TODO remove when descriptor serialized with payngbind
 399                     for index in range(0, count):
 400                         if index:
 401                             vdur = deepcopy(vdur)
 402                         vdur["_id"] = str(uuid4())
 403                         vdur["count-index"] = index
 404                         vnfr_descriptor["vdur"].append(vdur)
 405
 406                 step = "creating vnfr vnfd-id='{}' constituent-vnfd='{}' at database".format(
 407                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 408
 409                 # add at database
 410                 self.format_on_new(vnfr_descriptor, session["project_id"], make_public=session["public"])
 411                 self.db.create("vnfrs", vnfr_descriptor)
 412                 rollback.append({"topic": "vnfrs", "_id": vnfr_id})
 413                 nsr_descriptor["constituent-vnfr-ref"].append(vnfr_id)
 414
 415             step = "creating nsr at database"
 416             self.format_on_new(nsr_descriptor, session["project_id"], make_public=session["public"])
 417             self.db.create("nsrs", nsr_descriptor)
 418             rollback.append({"topic": "nsrs", "_id": nsr_id})
 419
 420             step = "creating nsr temporal folder"
 421             self.fs.mkdir(nsr_id)
 422
 423             return nsr_id, None
 424         except (ValidationError, EngineException, DbException, MsgException, FsException) as e:
 425             raise type(e)("{} while '{}".format(e, step), http_code=e.http_code)
 426
 427     def edit(self, session, _id, indata=None, kwargs=None, content=None):
 428         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 429
 430
 431 class VnfrTopic(BaseTopic):
 432     topic = "vnfrs"
 433     topic_msg = None
 434
 435     def __init__(self, db, fs, msg, auth):
 436         BaseTopic.__init__(self, db, fs, msg, auth)
 437
 438     def delete(self, session, _id, dry_run=False):
 439         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 440
 441     def edit(self, session, _id, indata=None, kwargs=None, content=None):
 442         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 443
 444     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
 445         # Not used because vnfrs are created and deleted by NsrTopic class directly
 446         raise EngineException("Method new called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 447
 448
 449 class NsLcmOpTopic(BaseTopic):
 450     topic = "nslcmops"
 451     topic_msg = "ns"
 452     operation_schema = {    # mapping between operation and jsonschema to validate
 453         "instantiate": ns_instantiate,
 454         "action": ns_action,
 455         "scale": ns_scale,
 456         "terminate": None,
 457     }
 458
 459     def __init__(self, db, fs, msg, auth):
 460         BaseTopic.__init__(self, db, fs, msg, auth)
 461
 462     def _check_ns_operation(self, session, nsr, operation, indata):
 463         """
 464         Check that user has enter right parameters for the operation
 465         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 466         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
 467         :param indata: descriptor with the parameters of the operation
 468         :return: None
 469         """
 470         vnf_member_index_to_vnfd = {}  # map between vnf_member_index to vnf descriptor.
 471         vim_accounts = []
 472         wim_accounts = []
 473         nsd = nsr["nsd"]
 474
 475         def check_valid_vnf_member_index(member_vnf_index):
 476             # Obtain vnf descriptor. The vnfr is used to get the vnfd._id used for this member_vnf_index
 477             if vnf_member_index_to_vnfd.get(member_vnf_index):
 478                 return vnf_member_index_to_vnfd[member_vnf_index]
 479             vnfr = self.db.get_one("vnfrs",
 480                                    {"nsr-id-ref": nsr["_id"], "member-vnf-index-ref": member_vnf_index},
 481                                    fail_on_empty=False)
 482             if not vnfr:
 483                 raise EngineException("Invalid parameter member_vnf_index='{}' is not one of the "
 484                                       "nsd:constituent-vnfd".format(member_vnf_index))
 485             vnfd = self.db.get_one("vnfds", {"_id": vnfr["vnfd-id"]}, fail_on_empty=False)
 486             if not vnfd:
 487                 raise EngineException("vnfd id={} has been deleted!. Operation cannot be performed".
 488                                       format(vnfr["vnfd-id"]))
 489             vnf_member_index_to_vnfd[member_vnf_index] = vnfd  # add to cache, avoiding a later look for
 490             return vnfd
 491
 492         def check_valid_vdu(vnfd, vdu_id):
 493             for vdud in get_iterable(vnfd.get("vdu")):
 494                 if vdud["id"] == vdu_id:
 495                     return vdud
 496             else:
 497                 raise EngineException("Invalid parameter vdu_id='{}' not present at vnfd:vdu:id".format(vdu_id))
 498
 499         def check_valid_kdu(vnfd, kdu_name):
 500             for kdud in get_iterable(vnfd.get("kdu")):
 501                 if kdud["name"] == kdu_name:
 502                     return kdud
 503             else:
 504                 raise EngineException("Invalid parameter kdu_name='{}' not present at vnfd:kdu:name".format(kdu_name))
 505
 506         def _check_vnf_instantiation_params(in_vnfd, vnfd):
 507
 508             for in_vdu in get_iterable(in_vnfd.get("vdu")):
 509                 for vdu in get_iterable(vnfd.get("vdu")):
 510                     if in_vdu["id"] == vdu["id"]:
 511                         for volume in get_iterable(in_vdu.get("volume")):
 512                             for volumed in get_iterable(vdu.get("volumes")):
 513                                 if volumed["name"] == volume["name"]:
 514                                     break
 515                             else:
 516                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 517                                                       "volume:name='{}' is not present at vnfd:vdu:volumes list".
 518                                                       format(in_vnf["member-vnf-index"], in_vdu["id"],
 519                                                              volume["name"]))
 520                         for in_iface in get_iterable(in_vdu["interface"]):
 521                             for iface in get_iterable(vdu.get("interface")):
 522                                 if in_iface["name"] == iface["name"]:
 523                                     break
 524                             else:
 525                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 526                                                       "interface[name='{}'] is not present at vnfd:vdu:interface"
 527                                                       .format(in_vnf["member-vnf-index"], in_vdu["id"],
 528                                                               in_iface["name"]))
 529                         break
 530                 else:
 531                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}'] is is not present "
 532                                           "at vnfd:vdu".format(in_vnf["member-vnf-index"], in_vdu["id"]))
 533
 534             for in_ivld in get_iterable(in_vnfd.get("internal-vld")):
 535                 for ivld in get_iterable(vnfd.get("internal-vld")):
 536                     if in_ivld["name"] == ivld["name"] or in_ivld["name"] == ivld["id"]:
 537                         for in_icp in get_iterable(in_ivld.get("internal-connection-point")):
 538                             for icp in ivld["internal-connection-point"]:
 539                                 if in_icp["id-ref"] == icp["id-ref"]:
 540                                     break
 541                             else:
 542                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld[name"
 543                                                       "='{}']:internal-connection-point[id-ref:'{}'] is not present at "
 544                                                       "vnfd:internal-vld:name/id:internal-connection-point"
 545                                                       .format(in_vnf["member-vnf-index"], in_ivld["name"],
 546                                                               in_icp["id-ref"], vnfd["id"]))
 547                         break
 548                 else:
 549                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld:name='{}'"
 550                                           " is not present at vnfd '{}'".format(in_vnf["member-vnf-index"],
 551                                                                                 in_ivld["name"], vnfd["id"]))
 552
 553         def check_valid_vim_account(vim_account):
 554             if vim_account in vim_accounts:
 555                 return
 556             try:
 557                 db_filter = self._get_project_filter(session)
 558                 db_filter["_id"] = vim_account
 559                 self.db.get_one("vim_accounts", db_filter)
 560             except Exception:
 561                 raise EngineException("Invalid vimAccountId='{}' not present for the project".format(vim_account))
 562             vim_accounts.append(vim_account)
 563
 564         def check_valid_wim_account(wim_account):
 565             if not isinstance(wim_account, str):
 566                 return
 567             elif wim_account in wim_accounts:
 568                 return
 569             try:
 570                 db_filter = self._get_project_filter(session, write=False, show_all=True)
 571                 db_filter["_id"] = wim_account
 572                 self.db.get_one("wim_accounts", db_filter)
 573             except Exception:
 574                 raise EngineException("Invalid wimAccountId='{}' not present for the project".format(wim_account))
 575             wim_accounts.append(wim_account)
 576
 577         if operation == "action":
 578             # check vnf_member_index
 579             if indata.get("vnf_member_index"):
 580                 indata["member_vnf_index"] = indata.pop("vnf_member_index")    # for backward compatibility
 581             if indata.get("member_vnf_index"):
 582                 vnfd = check_valid_vnf_member_index(indata["member_vnf_index"])
 583                 if indata.get("vdu_id"):
 584                     vdud = check_valid_vdu(vnfd, indata["vdu_id"])
 585                     descriptor_configuration = vdud.get("vdu-configuration", {}).get("config-primitive")
 586                 elif indata.get("kdu_name"):
 587                     kdud = check_valid_kdu(vnfd, indata["kdu_name"])
 588                     descriptor_configuration = kdud.get("kdu-configuration", {}).get("config-primitive")
 589                 else:
 590                     descriptor_configuration = vnfd.get("vnf-configuration", {}).get("config-primitive")
 591             else:  # use a NSD
 592                 descriptor_configuration = nsd.get("ns-configuration", {}).get("config-primitive")
 593
 594             # For k8s allows default primitives without validating the parameters
 595             if indata.get("kdu_name") and indata["primitive"] in ("upgrade", "rollback", "status", "inspect", "readme"):
 596                 # TODO should be checked that rollback only can contains revsision_numbe????
 597                 if not indata.get("member_vnf_index"):
 598                     raise EngineException("Missing action parameter 'member_vnf_index' for default KDU primitive '{}'"
 599                                           .format(indata["primitive"]))
 600                 return
 601             # if not, check primitive
 602             for config_primitive in get_iterable(descriptor_configuration):
 603                 if indata["primitive"] == config_primitive["name"]:
 604                     # check needed primitive_params are provided
 605                     if indata.get("primitive_params"):
 606                         in_primitive_params_copy = copy(indata["primitive_params"])
 607                     else:
 608                         in_primitive_params_copy = {}
 609                     for paramd in get_iterable(config_primitive.get("parameter")):
 610                         if paramd["name"] in in_primitive_params_copy:
 611                             del in_primitive_params_copy[paramd["name"]]
 612                         elif not paramd.get("default-value"):
 613                             raise EngineException("Needed parameter {} not provided for primitive '{}'".format(
 614                                 paramd["name"], indata["primitive"]))
 615                     # check no extra primitive params are provided
 616                     if in_primitive_params_copy:
 617                         raise EngineException("parameter/s '{}' not present at vnfd /nsd for primitive '{}'".format(
 618                             list(in_primitive_params_copy.keys()), indata["primitive"]))
 619                     break
 620             else:
 621                 raise EngineException("Invalid primitive '{}' is not present at vnfd/nsd".format(indata["primitive"]))
 622         if operation == "scale":
 623             vnfd = check_valid_vnf_member_index(indata["scaleVnfData"]["scaleByStepData"]["member-vnf-index"])
 624             for scaling_group in get_iterable(vnfd.get("scaling-group-descriptor")):
 625                 if indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"] == scaling_group["name"]:
 626                     break
 627             else:
 628                 raise EngineException("Invalid scaleVnfData:scaleByStepData:scaling-group-descriptor '{}' is not "
 629                                       "present at vnfd:scaling-group-descriptor".format(
 630                                           indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"]))
 631         if operation == "instantiate":
 632             # check vim_account
 633             check_valid_vim_account(indata["vimAccountId"])
 634             check_valid_wim_account(indata.get("wimAccountId"))
 635             for in_vnf in get_iterable(indata.get("vnf")):
 636                 vnfd = check_valid_vnf_member_index(in_vnf["member-vnf-index"])
 637                 _check_vnf_instantiation_params(in_vnf, vnfd)
 638                 if in_vnf.get("vimAccountId"):
 639                     check_valid_vim_account(in_vnf["vimAccountId"])
 640
 641             for in_vld in get_iterable(indata.get("vld")):
 642                 check_valid_wim_account(in_vld.get("wimAccountId"))
 643                 for vldd in get_iterable(nsd.get("vld")):
 644                     if in_vld["name"] == vldd["name"] or in_vld["name"] == vldd["id"]:
 645                         break
 646                 else:
 647                     raise EngineException("Invalid parameter vld:name='{}' is not present at nsd:vld".format(
 648                         in_vld["name"]))
 649
 650     def _look_for_pdu(self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback):
 651         """
 652         Look for a free PDU in the catalog matching vdur type and interfaces. Fills vnfr.vdur with the interface
 653         (ip_address, ...) information.
 654         Modifies PDU _admin.usageState to 'IN_USE'
 655
 656         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 657         :param rollback: list with the database modifications to rollback if needed
 658         :param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
 659         :param vim_account: vim_account where this vnfr should be deployed
 660         :param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
 661         :param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
 662                                      of the changed vnfr is needed
 663
 664         :return: List of PDU interfaces that are connected to an existing VIM network. Each item contains:
 665                  "vim-network-name": used at VIM
 666                   "name": interface name
 667                   "vnf-vld-id": internal VNFD vld where this interface is connected, or
 668                   "ns-vld-id": NSD vld where this interface is connected.
 669                   NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
 670         """
 671
 672         ifaces_forcing_vim_network = []
 673         for vdur_index, vdur in enumerate(get_iterable(vnfr.get("vdur"))):
 674             if not vdur.get("pdu-type"):
 675                 continue
 676             pdu_type = vdur.get("pdu-type")
 677             pdu_filter = self._get_project_filter(session)
 678             pdu_filter["vim_accounts"] = vim_account
 679             pdu_filter["type"] = pdu_type
 680             pdu_filter["_admin.operationalState"] = "ENABLED"
 681             pdu_filter["_admin.usageState"] = "NOT_IN_USE"
 682             # TODO feature 1417: "shared": True,
 683
 684             available_pdus = self.db.get_list("pdus", pdu_filter)
 685             for pdu in available_pdus:
 686                 # step 1 check if this pdu contains needed interfaces:
 687                 match_interfaces = True
 688                 for vdur_interface in vdur["interfaces"]:
 689                     for pdu_interface in pdu["interfaces"]:
 690                         if pdu_interface["name"] == vdur_interface["name"]:
 691                             # TODO feature 1417: match per mgmt type
 692                             break
 693                     else:  # no interface found for name
 694                         match_interfaces = False
 695                         break
 696                 if match_interfaces:
 697                     break
 698             else:
 699                 raise EngineException(
 700                     "No PDU of type={} at vim_account={} found for member_vnf_index={}, vdu={} matching interface "
 701                     "names".format(pdu_type, vim_account, vnfr["member-vnf-index-ref"], vdur["vdu-id-ref"]))
 702
 703             # step 2. Update pdu
 704             rollback_pdu = {
 705                 "_admin.usageState": pdu["_admin"]["usageState"],
 706                 "_admin.usage.vnfr_id": None,
 707                 "_admin.usage.nsr_id": None,
 708                 "_admin.usage.vdur": None,
 709             }
 710             self.db.set_one("pdus", {"_id": pdu["_id"]},
 711                             {"_admin.usageState": "IN_USE",
 712                              "_admin.usage": {"vnfr_id": vnfr["_id"],
 713                                               "nsr_id": vnfr["nsr-id-ref"],
 714                                               "vdur": vdur["vdu-id-ref"]}
 715                              })
 716             rollback.append({"topic": "pdus", "_id": pdu["_id"], "operation": "set", "content": rollback_pdu})
 717
 718             # step 3. Fill vnfr info by filling vdur
 719             vdu_text = "vdur.{}".format(vdur_index)
 720             vnfr_update_rollback[vdu_text + ".pdu-id"] = None
 721             vnfr_update[vdu_text + ".pdu-id"] = pdu["_id"]
 722             for iface_index, vdur_interface in enumerate(vdur["interfaces"]):
 723                 for pdu_interface in pdu["interfaces"]:
 724                     if pdu_interface["name"] == vdur_interface["name"]:
 725                         iface_text = vdu_text + ".interfaces.{}".format(iface_index)
 726                         for k, v in pdu_interface.items():
 727                             if k in ("ip-address", "mac-address"):  # TODO: switch-xxxxx must be inserted
 728                                 vnfr_update[iface_text + ".{}".format(k)] = v
 729                                 vnfr_update_rollback[iface_text + ".{}".format(k)] = vdur_interface.get(v)
 730                         if pdu_interface.get("ip-address"):
 731                             if vdur_interface.get("mgmt-interface"):
 732                                 vnfr_update_rollback[vdu_text + ".ip-address"] = vdur.get("ip-address")
 733                                 vnfr_update[vdu_text + ".ip-address"] = pdu_interface["ip-address"]
 734                             if vdur_interface.get("mgmt-vnf"):
 735                                 vnfr_update_rollback["ip-address"] = vnfr.get("ip-address")
 736                                 vnfr_update["ip-address"] = pdu_interface["ip-address"]
 737                         if pdu_interface.get("vim-network-name") or pdu_interface.get("vim-network-id"):
 738                             ifaces_forcing_vim_network.append({
 739                                 "name": vdur_interface.get("vnf-vld-id") or vdur_interface.get("ns-vld-id"),
 740                                 "vnf-vld-id": vdur_interface.get("vnf-vld-id"),
 741                                 "ns-vld-id": vdur_interface.get("ns-vld-id")})
 742                             if pdu_interface.get("vim-network-id"):
 743                                 ifaces_forcing_vim_network[-1]["vim-network-id"] = pdu_interface["vim-network-id"]
 744                             if pdu_interface.get("vim-network-name"):
 745                                 ifaces_forcing_vim_network[-1]["vim-network-name"] = pdu_interface["vim-network-name"]
 746                         break
 747
 748         return ifaces_forcing_vim_network
 749
 750     def _look_for_k8scluster(self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback):
 751         """
 752         Look for an available k8scluster for all the kuds in the vnfd matching version and cni requirements.
 753         Fills vnfr.kdur with the selected k8scluster
 754
 755         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 756         :param rollback: list with the database modifications to rollback if needed
 757         :param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
 758         :param vim_account: vim_account where this vnfr should be deployed
 759         :param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
 760         :param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
 761                                      of the changed vnfr is needed
 762
 763         :return: List of KDU interfaces that are connected to an existing VIM network. Each item contains:
 764                  "vim-network-name": used at VIM
 765                   "name": interface name
 766                   "vnf-vld-id": internal VNFD vld where this interface is connected, or
 767                   "ns-vld-id": NSD vld where this interface is connected.
 768                   NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
 769         """
 770
 771         ifaces_forcing_vim_network = []
 772         if not vnfr.get("kdur"):
 773             return ifaces_forcing_vim_network
 774
 775         kdu_filter = self._get_project_filter(session)
 776         kdu_filter["vim_account"] = vim_account
 777         # TODO kdu_filter["_admin.operationalState"] = "ENABLED"
 778         available_k8sclusters = self.db.get_list("k8sclusters", kdu_filter)
 779
 780         k8s_requirements = {}  # just for logging
 781         for k8scluster in available_k8sclusters:
 782             if not vnfr.get("k8s-cluster"):
 783                 break
 784             # restrict by cni
 785             if vnfr["k8s-cluster"].get("cni"):
 786                 k8s_requirements["cni"] = vnfr["k8s-cluster"]["cni"]
 787                 if not set(vnfr["k8s-cluster"]["cni"]).intersection(k8scluster.get("cni", ())):
 788                     continue
 789             # restrict by version
 790             if vnfr["k8s-cluster"].get("version"):
 791                 k8s_requirements["version"] = vnfr["k8s-cluster"]["version"]
 792                 if k8scluster.get("k8s_version") not in vnfr["k8s-cluster"]["version"]:
 793                     continue
 794             # restrict by number of networks
 795             if vnfr["k8s-cluster"].get("nets"):
 796                 k8s_requirements["networks"] = len(vnfr["k8s-cluster"]["nets"])
 797                 if not k8scluster.get("nets") or len(k8scluster["nets"]) < len(vnfr["k8s-cluster"]["nets"]):
 798                     continue
 799             break
 800         else:
 801             raise EngineException("No k8scluster with requirements='{}' at vim_account={} found for member_vnf_index={}"
 802                                   .format(k8s_requirements, vim_account, vnfr["member-vnf-index-ref"]))
 803
 804         for kdur_index, kdur in enumerate(get_iterable(vnfr.get("kdur"))):
 805             # step 3. Fill vnfr info by filling kdur
 806             kdu_text = "kdur.{}.".format(kdur_index)
 807             vnfr_update_rollback[kdu_text + "k8s-cluster.id"] = None
 808             vnfr_update[kdu_text + "k8s-cluster.id"] = k8scluster["_id"]
 809
 810         # step 4. Check VIM networks that forces the selected k8s_cluster
 811         if vnfr.get("k8s-cluster") and vnfr["k8s-cluster"].get("nets"):
 812             k8scluster_net_list = list(k8scluster.get("nets").keys())
 813             for net_index, kdur_net in enumerate(vnfr["k8s-cluster"]["nets"]):
 814                 # get a network from k8s_cluster nets. If name matches use this, if not use other
 815                 if kdur_net["id"] in k8scluster_net_list:  # name matches
 816                     vim_net = k8scluster["nets"][kdur_net["id"]]
 817                     k8scluster_net_list.remove(kdur_net["id"])
 818                 else:
 819                     vim_net = k8scluster["nets"][k8scluster_net_list[0]]
 820                     k8scluster_net_list.pop(0)
 821                 vnfr_update_rollback["k8s-cluster.nets.{}.vim_net".format(net_index)] = None
 822                 vnfr_update["k8s-cluster.nets.{}.vim_net".format(net_index)] = vim_net
 823                 if vim_net and (kdur_net.get("vnf-vld-id") or kdur_net.get("ns-vld-id")):
 824                     ifaces_forcing_vim_network.append({
 825                         "name": kdur_net.get("vnf-vld-id") or kdur_net.get("ns-vld-id"),
 826                         "vnf-vld-id": kdur_net.get("vnf-vld-id"),
 827                         "ns-vld-id": kdur_net.get("ns-vld-id"),
 828                         "vim-network-name": vim_net,   # TODO can it be vim-network-id ???
 829                     })
 830             # TODO check that this forcing is not incompatible with other forcing
 831         return ifaces_forcing_vim_network
 832
 833     def _update_vnfrs(self, session, rollback, nsr, indata):
 834         # get vnfr
 835         nsr_id = nsr["_id"]
 836         vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
 837
 838         for vnfr in vnfrs:
 839             vnfr_update = {}
 840             vnfr_update_rollback = {}
 841             member_vnf_index = vnfr["member-vnf-index-ref"]
 842             # update vim-account-id
 843
 844             vim_account = indata["vimAccountId"]
 845             # check instantiate parameters
 846             for vnf_inst_params in get_iterable(indata.get("vnf")):
 847                 if vnf_inst_params["member-vnf-index"] != member_vnf_index:
 848                     continue
 849                 if vnf_inst_params.get("vimAccountId"):
 850                     vim_account = vnf_inst_params.get("vimAccountId")
 851
 852             vnfr_update["vim-account-id"] = vim_account
 853             vnfr_update_rollback["vim-account-id"] = vnfr.get("vim-account-id")
 854
 855             # get pdu
 856             ifaces_forcing_vim_network = self._look_for_pdu(session, rollback, vnfr, vim_account, vnfr_update,
 857                                                             vnfr_update_rollback)
 858
 859             # get kdus
 860             ifaces_forcing_vim_network += self._look_for_k8scluster(session, rollback, vnfr, vim_account, vnfr_update,
 861                                                                     vnfr_update_rollback)
 862             # update database vnfr
 863             self.db.set_one("vnfrs", {"_id": vnfr["_id"]}, vnfr_update)
 864             rollback.append({"topic": "vnfrs", "_id": vnfr["_id"], "operation": "set", "content": vnfr_update_rollback})
 865
 866             # Update indada in case pdu forces to use a concrete vim-network-name
 867             # TODO check if user has already insert a vim-network-name and raises an error
 868             if not ifaces_forcing_vim_network:
 869                 continue
 870             for iface_info in ifaces_forcing_vim_network:
 871                 if iface_info.get("ns-vld-id"):
 872                     if "vld" not in indata:
 873                         indata["vld"] = []
 874                     indata["vld"].append({key: iface_info[key] for key in
 875                                           ("name", "vim-network-name", "vim-network-id") if iface_info.get(key)})
 876
 877                 elif iface_info.get("vnf-vld-id"):
 878                     if "vnf" not in indata:
 879                         indata["vnf"] = []
 880                     indata["vnf"].append({
 881                         "member-vnf-index": member_vnf_index,
 882                         "internal-vld": [{key: iface_info[key] for key in
 883                                           ("name", "vim-network-name", "vim-network-id") if iface_info.get(key)}]
 884                     })
 885
 886     @staticmethod
 887     def _create_nslcmop(nsr_id, operation, params):
 888         """
 889         Creates a ns-lcm-opp content to be stored at database.
 890         :param nsr_id: internal id of the instance
 891         :param operation: instantiate, terminate, scale, action, ...
 892         :param params: user parameters for the operation
 893         :return: dictionary following SOL005 format
 894         """
 895         now = time()
 896         _id = str(uuid4())
 897         nslcmop = {
 898             "id": _id,
 899             "_id": _id,
 900             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
 901             "statusEnteredTime": now,
 902             "nsInstanceId": nsr_id,
 903             "lcmOperationType": operation,
 904             "startTime": now,
 905             "isAutomaticInvocation": False,
 906             "operationParams": params,
 907             "isCancelPending": False,
 908             "links": {
 909                 "self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id,
 910                 "nsInstance": "/osm/nslcm/v1/ns_instances/" + nsr_id,
 911             }
 912         }
 913         return nslcmop
 914
 915     def new(self, rollback, session, indata=None, kwargs=None, headers=None, slice_object=False):
 916         """
 917         Performs a new operation over a ns
 918         :param rollback: list to append created items at database in case a rollback must to be done
 919         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 920         :param indata: descriptor with the parameters of the operation. It must contains among others
 921             nsInstanceId: _id of the nsr to perform the operation
 922             operation: it can be: instantiate, terminate, action, TODO: update, heal
 923         :param kwargs: used to override the indata descriptor
 924         :param headers: http request headers
 925         :return: id of the nslcmops
 926         """
 927         def check_if_nsr_is_not_slice_member(session, nsr_id):
 928             nsis = None
 929             db_filter = self._get_project_filter(session)
 930             db_filter["_admin.nsrs-detailed-list.ANYINDEX.nsrId"] = nsr_id
 931             nsis = self.db.get_one("nsis", db_filter, fail_on_empty=False, fail_on_more=False)
 932             if nsis:
 933                 raise EngineException("The NS instance {} cannot be terminate because is used by the slice {}".format(
 934                                       nsr_id, nsis["_id"]), http_code=HTTPStatus.CONFLICT)
 935
 936         try:
 937             # Override descriptor with query string kwargs
 938             self._update_input_with_kwargs(indata, kwargs)
 939             operation = indata["lcmOperationType"]
 940             nsInstanceId = indata["nsInstanceId"]
 941
 942             validate_input(indata, self.operation_schema[operation])
 943             # get ns from nsr_id
 944             _filter = BaseTopic._get_project_filter(session)
 945             _filter["_id"] = nsInstanceId
 946             nsr = self.db.get_one("nsrs", _filter)
 947
 948             # initial checking
 949             if operation == "terminate" and slice_object is False:
 950                 check_if_nsr_is_not_slice_member(session, nsr["_id"])
 951             if not nsr["_admin"].get("nsState") or nsr["_admin"]["nsState"] == "NOT_INSTANTIATED":
 952                 if operation == "terminate" and indata.get("autoremove"):
 953                     # NSR must be deleted
 954                     return None, None    # a none in this case is used to indicate not instantiated. It can be removed
 955                 if operation != "instantiate":
 956                     raise EngineException("ns_instance '{}' cannot be '{}' because it is not instantiated".format(
 957                         nsInstanceId, operation), HTTPStatus.CONFLICT)
 958             else:
 959                 if operation == "instantiate" and not session["force"]:
 960                     raise EngineException("ns_instance '{}' cannot be '{}' because it is already instantiated".format(
 961                         nsInstanceId, operation), HTTPStatus.CONFLICT)
 962             self._check_ns_operation(session, nsr, operation, indata)
 963
 964             if operation == "instantiate":
 965                 self._update_vnfrs(session, rollback, nsr, indata)
 966
 967             nslcmop_desc = self._create_nslcmop(nsInstanceId, operation, indata)
 968             _id = nslcmop_desc["_id"]
 969             self.format_on_new(nslcmop_desc, session["project_id"], make_public=session["public"])
 970             self.db.create("nslcmops", nslcmop_desc)
 971             rollback.append({"topic": "nslcmops", "_id": _id})
 972             if not slice_object:
 973                 self.msg.write("ns", operation, nslcmop_desc)
 974             return _id, None
 975         except ValidationError as e:  # TODO remove try Except, it is captured at nbi.py
 976             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
 977         # except DbException as e:
 978         #     raise EngineException("Cannot get ns_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
 979
 980     def delete(self, session, _id, dry_run=False):
 981         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 982
 983     def edit(self, session, _id, indata=None, kwargs=None, content=None):
 984         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 985
 986
 987 class NsiTopic(BaseTopic):
 988     topic = "nsis"
 989     topic_msg = "nsi"
 990
 991     def __init__(self, db, fs, msg, auth):
 992         BaseTopic.__init__(self, db, fs, msg, auth)
 993         self.nsrTopic = NsrTopic(db, fs, msg, auth)
 994
 995     @staticmethod
 996     def _format_ns_request(ns_request):
 997         formated_request = copy(ns_request)
 998         # TODO: Add request params
 999         return formated_request
1000
1001     @staticmethod
1002     def _format_addional_params(slice_request):
1003         """
1004         Get and format user additional params for NS or VNF
1005         :param slice_request: User instantiation additional parameters
1006         :return: a formatted copy of additional params or None if not supplied
1007         """
1008         additional_params = copy(slice_request.get("additionalParamsForNsi"))
1009         if additional_params:
1010             for k, v in additional_params.items():
1011                 if not isinstance(k, str):
1012                     raise EngineException("Invalid param at additionalParamsForNsi:{}. Only string keys are allowed".
1013                                           format(k))
1014                 if "." in k or "$" in k:
1015                     raise EngineException("Invalid param at additionalParamsForNsi:{}. Keys must not contain dots or $".
1016                                           format(k))
1017                 if isinstance(v, (dict, tuple, list)):
1018                     additional_params[k] = "!!yaml " + safe_dump(v)
1019         return additional_params
1020
1021     def _check_descriptor_dependencies(self, session, descriptor):
1022         """
1023         Check that the dependent descriptors exist on a new descriptor or edition
1024         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1025         :param descriptor: descriptor to be inserted or edit
1026         :return: None or raises exception
1027         """
1028         if not descriptor.get("nst-ref"):
1029             return
1030         nstd_id = descriptor["nst-ref"]
1031         if not self.get_item_list(session, "nsts", {"id": nstd_id}):
1032             raise EngineException("Descriptor error at nst-ref='{}' references a non exist nstd".format(nstd_id),
1033                                   http_code=HTTPStatus.CONFLICT)
1034
1035     def check_conflict_on_del(self, session, _id, db_content):
1036         """
1037         Check that NSI is not instantiated
1038         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1039         :param _id: nsi internal id
1040         :param db_content: The database content of the _id
1041         :return: None or raises EngineException with the conflict
1042         """
1043         if session["force"]:
1044             return
1045         nsi = db_content
1046         if nsi["_admin"].get("nsiState") == "INSTANTIATED":
1047             raise EngineException("nsi '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
1048                                   "Launch 'terminate' operation first; or force deletion".format(_id),
1049                                   http_code=HTTPStatus.CONFLICT)
1050
1051     def delete_extra(self, session, _id, db_content):
1052         """
1053         Deletes associated nsilcmops from database. Deletes associated filesystem.
1054          Set usageState of nst
1055         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1056         :param _id: server internal id
1057         :param db_content: The database content of the descriptor
1058         :return: None if ok or raises EngineException with the problem
1059         """
1060
1061         # Deleting the nsrs belonging to nsir
1062         nsir = db_content
1063         for nsrs_detailed_item in nsir["_admin"]["nsrs-detailed-list"]:
1064             nsr_id = nsrs_detailed_item["nsrId"]
1065             if nsrs_detailed_item.get("shared"):
1066                 _filter = {"_admin.nsrs-detailed-list.ANYINDEX.shared": True,
1067                            "_admin.nsrs-detailed-list.ANYINDEX.nsrId": nsr_id,
1068                            "_id.ne": nsir["_id"]}
1069                 nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1070                 if nsi:  # last one using nsr
1071                     continue
1072             try:
1073                 self.nsrTopic.delete(session, nsr_id, dry_run=False)
1074             except (DbException, EngineException) as e:
1075                 if e.http_code == HTTPStatus.NOT_FOUND:
1076                     pass
1077                 else:
1078                     raise
1079
1080         # delete related nsilcmops database entries
1081         self.db.del_list("nsilcmops", {"netsliceInstanceId": _id})
1082
1083         # Check and set used NST usage state
1084         nsir_admin = nsir.get("_admin")
1085         if nsir_admin and nsir_admin.get("nst-id"):
1086             # check if used by another NSI
1087             nsis_list = self.db.get_one("nsis", {"nst-id": nsir_admin["nst-id"]},
1088                                         fail_on_empty=False, fail_on_more=False)
1089             if not nsis_list:
1090                 self.db.set_one("nsts", {"_id": nsir_admin["nst-id"]}, {"_admin.usageState": "NOT_IN_USE"})
1091
1092     # def delete(self, session, _id, dry_run=False):
1093     #     """
1094     #     Delete item by its internal _id
1095     #     :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1096     #     :param _id: server internal id
1097     #     :param dry_run: make checking but do not delete
1098     #     :return: dictionary with deleted item _id. It raises EngineException on error: not found, conflict, ...
1099     #     """
1100     #     # TODO add admin to filter, validate rights
1101     #     BaseTopic.delete(self, session, _id, dry_run=True)
1102     #     if dry_run:
1103     #         return
1104     #
1105     #     # Deleting the nsrs belonging to nsir
1106     #     nsir = self.db.get_one("nsis", {"_id": _id})
1107     #     for nsrs_detailed_item in nsir["_admin"]["nsrs-detailed-list"]:
1108     #         nsr_id = nsrs_detailed_item["nsrId"]
1109     #         if nsrs_detailed_item.get("shared"):
1110     #             _filter = {"_admin.nsrs-detailed-list.ANYINDEX.shared": True,
1111     #                        "_admin.nsrs-detailed-list.ANYINDEX.nsrId": nsr_id,
1112     #                        "_id.ne": nsir["_id"]}
1113     #             nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1114     #             if nsi:  # last one using nsr
1115     #                 continue
1116     #         try:
1117     #             self.nsrTopic.delete(session, nsr_id, dry_run=False)
1118     #         except (DbException, EngineException) as e:
1119     #             if e.http_code == HTTPStatus.NOT_FOUND:
1120     #                 pass
1121     #             else:
1122     #                 raise
1123     #     # deletes NetSlice instance object
1124     #     v = self.db.del_one("nsis", {"_id": _id})
1125     #
1126     #     # makes a temporal list of nsilcmops objects related to the _id given and deletes them from db
1127     #     _filter = {"netsliceInstanceId": _id}
1128     #     self.db.del_list("nsilcmops", _filter)
1129     #
1130     #     # Search if nst is being used by other nsi
1131     #     nsir_admin = nsir.get("_admin")
1132     #     if nsir_admin:
1133     #         if nsir_admin.get("nst-id"):
1134     #             nsis_list = self.db.get_one("nsis", {"nst-id": nsir_admin["nst-id"]},
1135     #                                         fail_on_empty=False, fail_on_more=False)
1136     #             if not nsis_list:
1137     #                 self.db.set_one("nsts", {"_id": nsir_admin["nst-id"]}, {"_admin.usageState": "NOT_IN_USE"})
1138     #     return v
1139
1140     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
1141         """
1142         Creates a new netslice instance record into database. It also creates needed nsrs and vnfrs
1143         :param rollback: list to append the created items at database in case a rollback must be done
1144         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1145         :param indata: params to be used for the nsir
1146         :param kwargs: used to override the indata descriptor
1147         :param headers: http request headers
1148         :return: the _id of nsi descriptor created at database
1149         """
1150
1151         try:
1152             step = "checking quotas"
1153             self.check_quota(session)
1154
1155             step = ""
1156             slice_request = self._remove_envelop(indata)
1157             # Override descriptor with query string kwargs
1158             self._update_input_with_kwargs(slice_request, kwargs)
1159             self._validate_input_new(slice_request, session["force"])
1160
1161             # look for nstd
1162             step = "getting nstd id='{}' from database".format(slice_request.get("nstId"))
1163             _filter = self._get_project_filter(session)
1164             _filter["_id"] = slice_request["nstId"]
1165             nstd = self.db.get_one("nsts", _filter)
1166             del _filter["_id"]
1167
1168             nstd.pop("_admin", None)
1169             nstd_id = nstd.pop("_id", None)
1170             nsi_id = str(uuid4())
1171             step = "filling nsi_descriptor with input data"
1172
1173             # Creating the NSIR
1174             nsi_descriptor = {
1175                 "id": nsi_id,
1176                 "name": slice_request["nsiName"],
1177                 "description": slice_request.get("nsiDescription", ""),
1178                 "datacenter": slice_request["vimAccountId"],
1179                 "nst-ref": nstd["id"],
1180                 "instantiation_parameters": slice_request,
1181                 "network-slice-template": nstd,
1182                 "nsr-ref-list": [],
1183                 "vlr-list": [],
1184                 "_id": nsi_id,
1185                 "additionalParamsForNsi": self._format_addional_params(slice_request)
1186             }
1187
1188             step = "creating nsi at database"
1189             self.format_on_new(nsi_descriptor, session["project_id"], make_public=session["public"])
1190             nsi_descriptor["_admin"]["nsiState"] = "NOT_INSTANTIATED"
1191             nsi_descriptor["_admin"]["netslice-subnet"] = None
1192             nsi_descriptor["_admin"]["deployed"] = {}
1193             nsi_descriptor["_admin"]["deployed"]["RO"] = []
1194             nsi_descriptor["_admin"]["nst-id"] = nstd_id
1195
1196             # Creating netslice-vld for the RO.
1197             step = "creating netslice-vld at database"
1198
1199             # Building the vlds list to be deployed
1200             # From netslice descriptors, creating the initial list
1201             nsi_vlds = []
1202
1203             for netslice_vlds in get_iterable(nstd.get("netslice-vld")):
1204                 # Getting template Instantiation parameters from NST
1205                 nsi_vld = deepcopy(netslice_vlds)
1206                 nsi_vld["shared-nsrs-list"] = []
1207                 nsi_vld["vimAccountId"] = slice_request["vimAccountId"]
1208                 nsi_vlds.append(nsi_vld)
1209
1210             nsi_descriptor["_admin"]["netslice-vld"] = nsi_vlds
1211             # Creating netslice-subnet_record.
1212             needed_nsds = {}
1213             services = []
1214
1215             # Updating the nstd with the nsd["_id"] associated to the nss -> services list
1216             for member_ns in nstd["netslice-subnet"]:
1217                 nsd_id = member_ns["nsd-ref"]
1218                 step = "getting nstd id='{}' constituent-nsd='{}' from database".format(
1219                     member_ns["nsd-ref"], member_ns["id"])
1220                 if nsd_id not in needed_nsds:
1221                     # Obtain nsd
1222                     _filter["id"] = nsd_id
1223                     nsd = self.db.get_one("nsds", _filter, fail_on_empty=True, fail_on_more=True)
1224                     del _filter["id"]
1225                     nsd.pop("_admin")
1226                     needed_nsds[nsd_id] = nsd
1227                 else:
1228                     nsd = needed_nsds[nsd_id]
1229                 member_ns["_id"] = needed_nsds[nsd_id].get("_id")
1230                 services.append(member_ns)
1231
1232                 step = "filling nsir nsd-id='{}' constituent-nsd='{}' from database".format(
1233                     member_ns["nsd-ref"], member_ns["id"])
1234
1235             # creates Network Services records (NSRs)
1236             step = "creating nsrs at database using NsrTopic.new()"
1237             ns_params = slice_request.get("netslice-subnet")
1238             nsrs_list = []
1239             nsi_netslice_subnet = []
1240             for service in services:
1241                 # Check if the netslice-subnet is shared and if it is share if the nss exists
1242                 _id_nsr = None
1243                 indata_ns = {}
1244                 # Is the nss shared and instantiated?
1245                 _filter["_admin.nsrs-detailed-list.ANYINDEX.shared"] = True
1246                 _filter["_admin.nsrs-detailed-list.ANYINDEX.nsd-id"] = service["nsd-ref"]
1247                 _filter["_admin.nsrs-detailed-list.ANYINDEX.nss-id"] = service["id"]
1248                 nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1249                 if nsi and service.get("is-shared-nss"):
1250                     nsrs_detailed_list = nsi["_admin"]["nsrs-detailed-list"]
1251                     for nsrs_detailed_item in nsrs_detailed_list:
1252                         if nsrs_detailed_item["nsd-id"] == service["nsd-ref"]:
1253                             if nsrs_detailed_item["nss-id"] == service["id"]:
1254                                 _id_nsr = nsrs_detailed_item["nsrId"]
1255                                 break
1256                     for netslice_subnet in nsi["_admin"]["netslice-subnet"]:
1257                         if netslice_subnet["nss-id"] == service["id"]:
1258                             indata_ns = netslice_subnet
1259                             break
1260                 else:
1261                     indata_ns = {}
1262                     if service.get("instantiation-parameters"):
1263                         indata_ns = deepcopy(service["instantiation-parameters"])
1264                         # del service["instantiation-parameters"]
1265
1266                     indata_ns["nsdId"] = service["_id"]
1267                     indata_ns["nsName"] = slice_request.get("nsiName") + "." + service["id"]
1268                     indata_ns["vimAccountId"] = slice_request.get("vimAccountId")
1269                     indata_ns["nsDescription"] = service["description"]
1270                     if slice_request.get("ssh_keys"):
1271                         indata_ns["ssh_keys"] = slice_request.get("ssh_keys")
1272
1273                     if ns_params:
1274                         for ns_param in ns_params:
1275                             if ns_param.get("id") == service["id"]:
1276                                 copy_ns_param = deepcopy(ns_param)
1277                                 del copy_ns_param["id"]
1278                                 indata_ns.update(copy_ns_param)
1279                                 break
1280
1281                     # Creates Nsr objects
1282                     _id_nsr, _ = self.nsrTopic.new(rollback, session, indata_ns, kwargs, headers)
1283                 nsrs_item = {"nsrId": _id_nsr, "shared": service.get("is-shared-nss"), "nsd-id": service["nsd-ref"],
1284                              "nss-id": service["id"], "nslcmop_instantiate": None}
1285                 indata_ns["nss-id"] = service["id"]
1286                 nsrs_list.append(nsrs_item)
1287                 nsi_netslice_subnet.append(indata_ns)
1288                 nsr_ref = {"nsr-ref": _id_nsr}
1289                 nsi_descriptor["nsr-ref-list"].append(nsr_ref)
1290
1291             # Adding the nsrs list to the nsi
1292             nsi_descriptor["_admin"]["nsrs-detailed-list"] = nsrs_list
1293             nsi_descriptor["_admin"]["netslice-subnet"] = nsi_netslice_subnet
1294             self.db.set_one("nsts", {"_id": slice_request["nstId"]}, {"_admin.usageState": "IN_USE"})
1295
1296             # Creating the entry in the database
1297             self.db.create("nsis", nsi_descriptor)
1298             rollback.append({"topic": "nsis", "_id": nsi_id})
1299             return nsi_id, None
1300         except Exception as e:   # TODO remove try Except, it is captured at nbi.py
1301             self.logger.exception("Exception {} at NsiTopic.new()".format(e), exc_info=True)
1302             raise EngineException("Error {}: {}".format(step, e))
1303         except ValidationError as e:
1304             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
1305
1306     def edit(self, session, _id, indata=None, kwargs=None, content=None):
1307         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1308
1309
1310 class NsiLcmOpTopic(BaseTopic):
1311     topic = "nsilcmops"
1312     topic_msg = "nsi"
1313     operation_schema = {  # mapping between operation and jsonschema to validate
1314         "instantiate": nsi_instantiate,
1315         "terminate": None
1316     }
1317
1318     def __init__(self, db, fs, msg, auth):
1319         BaseTopic.__init__(self, db, fs, msg, auth)
1320         self.nsi_NsLcmOpTopic = NsLcmOpTopic(self.db, self.fs, self.msg, self.auth)
1321
1322     def _check_nsi_operation(self, session, nsir, operation, indata):
1323         """
1324         Check that user has enter right parameters for the operation
1325         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1326         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
1327         :param indata: descriptor with the parameters of the operation
1328         :return: None
1329         """
1330         nsds = {}
1331         nstd = nsir["network-slice-template"]
1332
1333         def check_valid_netslice_subnet_id(nstId):
1334             # TODO change to vnfR (??)
1335             for netslice_subnet in nstd["netslice-subnet"]:
1336                 if nstId == netslice_subnet["id"]:
1337                     nsd_id = netslice_subnet["nsd-ref"]
1338                     if nsd_id not in nsds:
1339                         nsds[nsd_id] = self.db.get_one("nsds", {"id": nsd_id})
1340                     return nsds[nsd_id]
1341             else:
1342                 raise EngineException("Invalid parameter nstId='{}' is not one of the "
1343                                       "nst:netslice-subnet".format(nstId))
1344         if operation == "instantiate":
1345             # check the existance of netslice-subnet items
1346             for in_nst in get_iterable(indata.get("netslice-subnet")):
1347                 check_valid_netslice_subnet_id(in_nst["id"])
1348
1349     def _create_nsilcmop(self, session, netsliceInstanceId, operation, params):
1350         now = time()
1351         _id = str(uuid4())
1352         nsilcmop = {
1353             "id": _id,
1354             "_id": _id,
1355             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
1356             "statusEnteredTime": now,
1357             "netsliceInstanceId": netsliceInstanceId,
1358             "lcmOperationType": operation,
1359             "startTime": now,
1360             "isAutomaticInvocation": False,
1361             "operationParams": params,
1362             "isCancelPending": False,
1363             "links": {
1364                 "self": "/osm/nsilcm/v1/nsi_lcm_op_occs/" + _id,
1365                 "netsliceInstanceId": "/osm/nsilcm/v1/netslice_instances/" + netsliceInstanceId,
1366             }
1367         }
1368         return nsilcmop
1369
1370     def add_shared_nsr_2vld(self, nsir, nsr_item):
1371         for nst_sb_item in nsir["network-slice-template"].get("netslice-subnet"):
1372             if nst_sb_item.get("is-shared-nss"):
1373                 for admin_subnet_item in nsir["_admin"].get("netslice-subnet"):
1374                     if admin_subnet_item["nss-id"] == nst_sb_item["id"]:
1375                         for admin_vld_item in nsir["_admin"].get("netslice-vld"):
1376                             for admin_vld_nss_cp_ref_item in admin_vld_item["nss-connection-point-ref"]:
1377                                 if admin_subnet_item["nss-id"] == admin_vld_nss_cp_ref_item["nss-ref"]:
1378                                     if not nsr_item["nsrId"] in admin_vld_item["shared-nsrs-list"]:
1379                                         admin_vld_item["shared-nsrs-list"].append(nsr_item["nsrId"])
1380                                     break
1381         # self.db.set_one("nsis", {"_id": nsir["_id"]}, nsir)
1382         self.db.set_one("nsis", {"_id": nsir["_id"]}, {"_admin.netslice-vld": nsir["_admin"].get("netslice-vld")})
1383
1384     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
1385         """
1386         Performs a new operation over a ns
1387         :param rollback: list to append created items at database in case a rollback must to be done
1388         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1389         :param indata: descriptor with the parameters of the operation. It must contains among others
1390             netsliceInstanceId: _id of the nsir to perform the operation
1391             operation: it can be: instantiate, terminate, action, TODO: update, heal
1392         :param kwargs: used to override the indata descriptor
1393         :param headers: http request headers
1394         :return: id of the nslcmops
1395         """
1396         try:
1397             # Override descriptor with query string kwargs
1398             self._update_input_with_kwargs(indata, kwargs)
1399             operation = indata["lcmOperationType"]
1400             netsliceInstanceId = indata["netsliceInstanceId"]
1401             validate_input(indata, self.operation_schema[operation])
1402
1403             # get nsi from netsliceInstanceId
1404             _filter = self._get_project_filter(session)
1405             _filter["_id"] = netsliceInstanceId
1406             nsir = self.db.get_one("nsis", _filter)
1407             del _filter["_id"]
1408
1409             # initial checking
1410             if not nsir["_admin"].get("nsiState") or nsir["_admin"]["nsiState"] == "NOT_INSTANTIATED":
1411                 if operation == "terminate" and indata.get("autoremove"):
1412                     # NSIR must be deleted
1413                     return None, None    # a none in this case is used to indicate not instantiated. It can be removed
1414                 if operation != "instantiate":
1415                     raise EngineException("netslice_instance '{}' cannot be '{}' because it is not instantiated".format(
1416                         netsliceInstanceId, operation), HTTPStatus.CONFLICT)
1417             else:
1418                 if operation == "instantiate" and not session["force"]:
1419                     raise EngineException("netslice_instance '{}' cannot be '{}' because it is already instantiated".
1420                                           format(netsliceInstanceId, operation), HTTPStatus.CONFLICT)
1421
1422             # Creating all the NS_operation (nslcmop)
1423             # Get service list from db
1424             nsrs_list = nsir["_admin"]["nsrs-detailed-list"]
1425             nslcmops = []
1426             # nslcmops_item = None
1427             for index, nsr_item in enumerate(nsrs_list):
1428                 nsi = None
1429                 if nsr_item.get("shared"):
1430                     _filter["_admin.nsrs-detailed-list.ANYINDEX.shared"] = True
1431                     _filter["_admin.nsrs-detailed-list.ANYINDEX.nsrId"] = nsr_item["nsrId"]
1432                     _filter["_admin.nsrs-detailed-list.ANYINDEX.nslcmop_instantiate.ne"] = None
1433                     _filter["_id.ne"] = netsliceInstanceId
1434                     nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1435                     if operation == "terminate":
1436                         _update = {"_admin.nsrs-detailed-list.{}.nslcmop_instantiate".format(index): None}
1437                         self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
1438
1439                     # looks the first nsi fulfilling the conditions but not being the current NSIR
1440                     if nsi:
1441                         nsi_admin_shared = nsi["_admin"]["nsrs-detailed-list"]
1442                         for nsi_nsr_item in nsi_admin_shared:
1443                             if nsi_nsr_item["nsd-id"] == nsr_item["nsd-id"] and nsi_nsr_item["shared"]:
1444                                 self.add_shared_nsr_2vld(nsir, nsr_item)
1445                                 nslcmops.append(nsi_nsr_item["nslcmop_instantiate"])
1446                                 _update = {"_admin.nsrs-detailed-list.{}".format(index): nsi_nsr_item}
1447                                 self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
1448                                 break
1449                         # continue to not create nslcmop since nsrs is shared and nsrs was created
1450                         continue
1451                     else:
1452                         self.add_shared_nsr_2vld(nsir, nsr_item)
1453
1454                 try:
1455                     service = self.db.get_one("nsrs", {"_id": nsr_item["nsrId"]})
1456                     indata_ns = {}
1457                     indata_ns = service["instantiate_params"]
1458                     indata_ns["lcmOperationType"] = operation
1459                     indata_ns["nsInstanceId"] = service["_id"]
1460                     # Including netslice_id in the ns instantiate Operation
1461                     indata_ns["netsliceInstanceId"] = netsliceInstanceId
1462                     # Creating NS_LCM_OP with the flag slice_object=True to not trigger the service instantiation
1463                     # message via kafka bus
1464                     nslcmop, _ = self.nsi_NsLcmOpTopic.new(rollback, session, indata_ns, kwargs, headers,
1465                                                            slice_object=True)
1466                     nslcmops.append(nslcmop)
1467                     if operation == "terminate":
1468                         nslcmop = None
1469                     _update = {"_admin.nsrs-detailed-list.{}.nslcmop_instantiate".format(index): nslcmop}
1470                     self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
1471                 except (DbException, EngineException) as e:
1472                     if e.http_code == HTTPStatus.NOT_FOUND:
1473                         self.logger.info("HTTPStatus.NOT_FOUND")
1474                         pass
1475                     else:
1476                         raise
1477
1478             # Creates nsilcmop
1479             indata["nslcmops_ids"] = nslcmops
1480             self._check_nsi_operation(session, nsir, operation, indata)
1481
1482             nsilcmop_desc = self._create_nsilcmop(session, netsliceInstanceId, operation, indata)
1483             self.format_on_new(nsilcmop_desc, session["project_id"], make_public=session["public"])
1484             _id = self.db.create("nsilcmops", nsilcmop_desc)
1485             rollback.append({"topic": "nsilcmops", "_id": _id})
1486             self.msg.write("nsi", operation, nsilcmop_desc)
1487             return _id, None
1488         except ValidationError as e:
1489             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
1490
1491     def delete(self, session, _id, dry_run=False):
1492         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1493
1494     def edit(self, session, _id, indata=None, kwargs=None, content=None):
1495         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)