osm_nbi/instance_topics.py

   1 # -*- coding: utf-8 -*-
   2
   3 # import logging
   4 from uuid import uuid4
   5 from http import HTTPStatus
   6 from time import time
   7 from copy import copy, deepcopy
   8 from validation import validate_input, ValidationError, ns_instantiate, ns_action, ns_scale
   9 from base_topic import BaseTopic, EngineException, get_iterable
  10 from descriptor_topics import DescriptorTopic
  11
  12 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
  13
  14
  15 class NsrTopic(BaseTopic):
  16     topic = "nsrs"
  17     topic_msg = "ns"
  18
  19     def __init__(self, db, fs, msg):
  20         BaseTopic.__init__(self, db, fs, msg)
  21
  22     def _check_descriptor_dependencies(self, session, descriptor):
  23         """
  24         Check that the dependent descriptors exist on a new descriptor or edition
  25         :param session: client session information
  26         :param descriptor: descriptor to be inserted or edit
  27         :return: None or raises exception
  28         """
  29         if not descriptor.get("nsdId"):
  30             return
  31         nsd_id = descriptor["nsdId"]
  32         if not self.get_item_list(session, "nsds", {"id": nsd_id}):
  33             raise EngineException("Descriptor error at nsdId='{}' references a non exist nsd".format(nsd_id),
  34                                   http_code=HTTPStatus.CONFLICT)
  35
  36     @staticmethod
  37     def format_on_new(content, project_id=None, make_public=False):
  38         BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
  39         content["_admin"]["nsState"] = "NOT_INSTANTIATED"
  40
  41     def check_conflict_on_del(self, session, _id, force=False):
  42         if force:
  43             return
  44         nsr = self.db.get_one("nsrs", {"_id": _id})
  45         if nsr["_admin"].get("nsState") == "INSTANTIATED":
  46             raise EngineException("nsr '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
  47                                   "Launch 'terminate' operation first; or force deletion".format(_id),
  48                                   http_code=HTTPStatus.CONFLICT)
  49
  50     def delete(self, session, _id, force=False, dry_run=False):
  51         """
  52         Delete item by its internal _id
  53         :param session: contains the used login username, working project, and admin rights
  54         :param _id: server internal id
  55         :param force: indicates if deletion must be forced in case of conflict
  56         :param dry_run: make checking but do not delete
  57         :return: dictionary with deleted item _id. It raises EngineException on error: not found, conflict, ...
  58         """
  59         # TODO add admin to filter, validate rights
  60         BaseTopic.delete(self, session, _id, force, dry_run=True)
  61         if dry_run:
  62             return
  63
  64         v = self.db.del_one("nsrs", {"_id": _id})
  65         self.db.del_list("nslcmops", {"nsInstanceId": _id})
  66         self.db.del_list("vnfrs", {"nsr-id-ref": _id})
  67         # set all used pdus as free
  68         self.db.set_list("pdus", {"_admin.usage.nsr_id": _id},
  69                          {"_admin.usageSate": "NOT_IN_USE", "_admin.usage": None})
  70         self._send_msg("deleted", {"_id": _id})
  71         return v
  72
  73     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
  74         """
  75         Creates a new nsr into database. It also creates needed vnfrs
  76         :param rollback: list to append the created items at database in case a rollback must be done
  77         :param session: contains the used login username and working project
  78         :param indata: params to be used for the nsr
  79         :param kwargs: used to override the indata descriptor
  80         :param headers: http request headers
  81         :param force: If True avoid some dependence checks
  82         :param make_public: Make the created item public to all projects
  83         :return: the _id of nsr descriptor created at database
  84         """
  85
  86         try:
  87             ns_request = self._remove_envelop(indata)
  88             # Override descriptor with query string kwargs
  89             self._update_input_with_kwargs(ns_request, kwargs)
  90             self._validate_input_new(ns_request, force)
  91
  92             step = ""
  93             # look for nsr
  94             step = "getting nsd id='{}' from database".format(ns_request.get("nsdId"))
  95             _filter = {"_id": ns_request["nsdId"]}
  96             _filter.update(BaseTopic._get_project_filter(session, write=False, show_all=True))
  97             nsd = self.db.get_one("nsds", _filter)
  98
  99             nsr_id = str(uuid4())
 100             now = time()
 101             step = "filling nsr from input data"
 102             nsr_descriptor = {
 103                 "name": ns_request["nsName"],
 104                 "name-ref": ns_request["nsName"],
 105                 "short-name": ns_request["nsName"],
 106                 "admin-status": "ENABLED",
 107                 "nsd": nsd,
 108                 "datacenter": ns_request["vimAccountId"],
 109                 "resource-orchestrator": "osmopenmano",
 110                 "description": ns_request.get("nsDescription", ""),
 111                 "constituent-vnfr-ref": [],
 112
 113                 "operational-status": "init",    # typedef ns-operational-
 114                 "config-status": "init",         # typedef config-states
 115                 "detailed-status": "scheduled",
 116
 117                 "orchestration-progress": {},
 118                 # {"networks": {"active": 0, "total": 0}, "vms": {"active": 0, "total": 0}},
 119
 120                 "crete-time": now,
 121                 "nsd-name-ref": nsd["name"],
 122                 "operational-events": [],   # "id", "timestamp", "description", "event",
 123                 "nsd-ref": nsd["id"],
 124                 "instantiate_params": ns_request,
 125                 "ns-instance-config-ref": nsr_id,
 126                 "id": nsr_id,
 127                 "_id": nsr_id,
 128                 # "input-parameter": xpath, value,
 129                 "ssh-authorized-key": ns_request.get("key-pair-ref"),
 130             }
 131             ns_request["nsr_id"] = nsr_id
 132
 133             # Create VNFR
 134             needed_vnfds = {}
 135             for member_vnf in nsd["constituent-vnfd"]:
 136                 vnfd_id = member_vnf["vnfd-id-ref"]
 137                 step = "getting vnfd id='{}' constituent-vnfd='{}' from database".format(
 138                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 139                 if vnfd_id not in needed_vnfds:
 140                     # Obtain vnfd
 141                     vnfd = DescriptorTopic.get_one_by_id(self.db, session, "vnfds", vnfd_id)
 142                     vnfd.pop("_admin")
 143                     needed_vnfds[vnfd_id] = vnfd
 144                 else:
 145                     vnfd = needed_vnfds[vnfd_id]
 146                 step = "filling vnfr  vnfd-id='{}' constituent-vnfd='{}'".format(
 147                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 148                 vnfr_id = str(uuid4())
 149                 vnfr_descriptor = {
 150                     "id": vnfr_id,
 151                     "_id": vnfr_id,
 152                     "nsr-id-ref": nsr_id,
 153                     "member-vnf-index-ref": member_vnf["member-vnf-index"],
 154                     "created-time": now,
 155                     # "vnfd": vnfd,        # at OSM model.but removed to avoid data duplication TODO: revise
 156                     "vnfd-ref": vnfd_id,
 157                     "vnfd-id": vnfd["_id"],    # not at OSM model, but useful
 158                     "vim-account-id": None,
 159                     "vdur": [],
 160                     "connection-point": [],
 161                     "ip-address": None,  # mgmt-interface filled by LCM
 162                 }
 163                 for cp in vnfd.get("connection-point", ()):
 164                     vnf_cp = {
 165                         "name": cp["name"],
 166                         "connection-point-id": cp.get("id"),
 167                         "id": cp.get("id"),
 168                         # "ip-address", "mac-address" # filled by LCM
 169                         # vim-id  # TODO it would be nice having a vim port id
 170                     }
 171                     vnfr_descriptor["connection-point"].append(vnf_cp)
 172                 for vdu in vnfd["vdu"]:
 173                     vdur = {
 174                         "vdu-id-ref": vdu["id"],
 175                         # TODO      "name": ""     Name of the VDU in the VIM
 176                         "ip-address": None,  # mgmt-interface filled by LCM
 177                         # "vim-id", "flavor-id", "image-id", "management-ip" # filled by LCM
 178                         "internal-connection-point": [],
 179                         "interfaces": [],
 180                     }
 181                     if vdu.get("pdu-type"):
 182                         vdur["pdu-type"] = vdu["pdu-type"]
 183                     # TODO volumes: name, volume-id
 184                     for icp in vdu.get("internal-connection-point", ()):
 185                         vdu_icp = {
 186                             "id": icp["id"],
 187                             "connection-point-id": icp["id"],
 188                             "name": icp.get("name"),
 189                             # "ip-address", "mac-address" # filled by LCM
 190                             # vim-id  # TODO it would be nice having a vim port id
 191                         }
 192                         vdur["internal-connection-point"].append(vdu_icp)
 193                     for iface in vdu.get("interface", ()):
 194                         vdu_iface = {
 195                             "name": iface.get("name"),
 196                             # "ip-address", "mac-address" # filled by LCM
 197                             # vim-id  # TODO it would be nice having a vim port id
 198                         }
 199                         if iface.get("mgmt-interface"):
 200                             vdu_iface["mgmt-interface"] = True
 201
 202                         vdur["interfaces"].append(vdu_iface)
 203                     count = vdu.get("count", 1)
 204                     if count is None:
 205                         count = 1
 206                     count = int(count)    # TODO remove when descriptor serialized with payngbind
 207                     for index in range(0, count):
 208                         if index:
 209                             vdur = deepcopy(vdur)
 210                         vdur["_id"] = str(uuid4())
 211                         vdur["count-index"] = index
 212                         vnfr_descriptor["vdur"].append(vdur)
 213
 214                 step = "creating vnfr vnfd-id='{}' constituent-vnfd='{}' at database".format(
 215                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 216
 217                 # add at database
 218                 BaseTopic.format_on_new(vnfr_descriptor, session["project_id"], make_public=make_public)
 219                 self.db.create("vnfrs", vnfr_descriptor)
 220                 rollback.append({"topic": "vnfrs", "_id": vnfr_id})
 221                 nsr_descriptor["constituent-vnfr-ref"].append(vnfr_id)
 222
 223             step = "creating nsr at database"
 224             self.format_on_new(nsr_descriptor, session["project_id"], make_public=make_public)
 225             self.db.create("nsrs", nsr_descriptor)
 226             rollback.append({"topic": "nsrs", "_id": nsr_id})
 227             return nsr_id
 228         except Exception as e:
 229             self.logger.exception("Exception {} at NsrTopic.new()".format(e), exc_info=True)
 230             raise EngineException("Error {}: {}".format(step, e))
 231         except ValidationError as e:
 232             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
 233
 234     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 235         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 236
 237
 238 class VnfrTopic(BaseTopic):
 239     topic = "vnfrs"
 240     topic_msg = None
 241
 242     def __init__(self, db, fs, msg):
 243         BaseTopic.__init__(self, db, fs, msg)
 244
 245     def delete(self, session, _id, force=False, dry_run=False):
 246         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 247
 248     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 249         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 250
 251     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
 252         # Not used because vnfrs are created and deleted by NsrTopic class directly
 253         raise EngineException("Method new called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 254
 255
 256 class NsLcmOpTopic(BaseTopic):
 257     topic = "nslcmops"
 258     topic_msg = "ns"
 259     operation_schema = {    # mapping between operation and jsonschema to validate
 260         "instantiate": ns_instantiate,
 261         "action": ns_action,
 262         "scale": ns_scale,
 263         "terminate": None,
 264     }
 265
 266     def __init__(self, db, fs, msg):
 267         BaseTopic.__init__(self, db, fs, msg)
 268
 269     def _validate_input_new(self, input, force=False):
 270         """
 271         Validates input user content for a new entry. It uses jsonschema for each type or operation.
 272         :param input: user input content for the new topic
 273         :param force: may be used for being more tolerant
 274         :return: The same input content, or a changed version of it.
 275         """
 276         if self.schema_new:
 277             validate_input(input, self.schema_new)
 278         return input
 279
 280     def _check_ns_operation(self, session, nsr, operation, indata):
 281         """
 282         Check that user has enter right parameters for the operation
 283         :param session:
 284         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
 285         :param indata: descriptor with the parameters of the operation
 286         :return: None
 287         """
 288         vnfds = {}
 289         vim_accounts = []
 290         nsd = nsr["nsd"]
 291
 292         def check_valid_vnf_member_index(member_vnf_index):
 293             # TODO change to vnfR
 294             for vnf in nsd["constituent-vnfd"]:
 295                 if member_vnf_index == vnf["member-vnf-index"]:
 296                     vnfd_id = vnf["vnfd-id-ref"]
 297                     if vnfd_id not in vnfds:
 298                         vnfds[vnfd_id] = self.db.get_one("vnfds", {"id": vnfd_id})
 299                     return vnfds[vnfd_id]
 300             else:
 301                 raise EngineException("Invalid parameter member_vnf_index='{}' is not one of the "
 302                                       "nsd:constituent-vnfd".format(member_vnf_index))
 303
 304         def _check_vnf_instantiation_params(in_vnfd, vnfd):
 305
 306             for in_vdu in get_iterable(in_vnfd.get("vdu")):
 307                 for vdu in get_iterable(vnfd.get("vdu")):
 308                     if in_vdu["id"] == vdu["id"]:
 309                         for volume in get_iterable(in_vdu.get("volume")):
 310                             for volumed in get_iterable(vdu.get("volumes")):
 311                                 if volumed["name"] == volume["name"]:
 312                                     break
 313                             else:
 314                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 315                                                       "volume:name='{}' is not present at vnfd:vdu:volumes list".
 316                                                       format(in_vnf["member-vnf-index"], in_vdu["id"],
 317                                                              volume["name"]))
 318                         for in_iface in get_iterable(in_vdu["interface"]):
 319                             for iface in get_iterable(vdu.get("interface")):
 320                                 if in_iface["name"] == iface["name"]:
 321                                     break
 322                             else:
 323                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 324                                                       "interface[name='{}'] is not present at vnfd:vdu:interface"
 325                                                       .format(in_vnf["member-vnf-index"], in_vdu["id"],
 326                                                               in_iface["name"]))
 327                         break
 328                 else:
 329                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}'] is is not present "
 330                                           "at vnfd:vdu".format(in_vnf["member-vnf-index"], in_vdu["id"]))
 331
 332             for in_ivld in get_iterable(in_vnfd.get("internal-vld")):
 333                 for ivld in get_iterable(vnfd.get("internal-vld")):
 334                     if in_ivld["name"] == ivld["name"] or in_ivld["name"] == ivld["id"]:
 335                         for in_icp in get_iterable(in_ivld["internal-connection-point"]):
 336                             for icp in ivld["internal-connection-point"]:
 337                                 if in_icp["id-ref"] == icp["id-ref"]:
 338                                     break
 339                             else:
 340                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld[name"
 341                                                       "='{}']:internal-connection-point[id-ref:'{}'] is not present at "
 342                                                       "vnfd:internal-vld:name/id:internal-connection-point"
 343                                                       .format(in_vnf["member-vnf-index"], in_ivld["name"],
 344                                                               in_icp["id-ref"], vnfd["id"]))
 345                         break
 346                 else:
 347                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld:name='{}'"
 348                                           " is not present at vnfd '{}'".format(in_vnf["member-vnf-index"],
 349                                                                                 in_ivld["name"], vnfd["id"]))
 350
 351         def check_valid_vim_account(vim_account):
 352             if vim_account in vim_accounts:
 353                 return
 354             try:
 355                 db_filter = self._get_project_filter(session, write=False, show_all=True)
 356                 db_filter["_id"] = vim_account
 357                 self.db.get_one("vim_accounts", db_filter)
 358             except Exception:
 359                 raise EngineException("Invalid vimAccountId='{}' not present for the project".format(vim_account))
 360             vim_accounts.append(vim_account)
 361
 362         if operation == "action":
 363             # check vnf_member_index
 364             if indata.get("vnf_member_index"):
 365                 indata["member_vnf_index"] = indata.pop("vnf_member_index")    # for backward compatibility
 366             if not indata.get("member_vnf_index"):
 367                 raise EngineException("Missing 'member_vnf_index' parameter")
 368             vnfd = check_valid_vnf_member_index(indata["member_vnf_index"])
 369             # check primitive
 370             for config_primitive in get_iterable(vnfd.get("vnf-configuration", {}).get("config-primitive")):
 371                 if indata["primitive"] == config_primitive["name"]:
 372                     # check needed primitive_params are provided
 373                     if indata.get("primitive_params"):
 374                         in_primitive_params_copy = copy(indata["primitive_params"])
 375                     else:
 376                         in_primitive_params_copy = {}
 377                     for paramd in get_iterable(config_primitive.get("parameter")):
 378                         if paramd["name"] in in_primitive_params_copy:
 379                             del in_primitive_params_copy[paramd["name"]]
 380                         elif not paramd.get("default-value"):
 381                             raise EngineException("Needed parameter {} not provided for primitive '{}'".format(
 382                                 paramd["name"], indata["primitive"]))
 383                     # check no extra primitive params are provided
 384                     if in_primitive_params_copy:
 385                         raise EngineException("parameter/s '{}' not present at vnfd for primitive '{}'".format(
 386                             list(in_primitive_params_copy.keys()), indata["primitive"]))
 387                     break
 388             else:
 389                 raise EngineException("Invalid primitive '{}' is not present at vnfd".format(indata["primitive"]))
 390         if operation == "scale":
 391             vnfd = check_valid_vnf_member_index(indata["scaleVnfData"]["scaleByStepData"]["member-vnf-index"])
 392             for scaling_group in get_iterable(vnfd.get("scaling-group-descriptor")):
 393                 if indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"] == scaling_group["name"]:
 394                     break
 395             else:
 396                 raise EngineException("Invalid scaleVnfData:scaleByStepData:scaling-group-descriptor '{}' is not "
 397                                       "present at vnfd:scaling-group-descriptor".format(
 398                                           indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"]))
 399         if operation == "instantiate":
 400             # check vim_account
 401             check_valid_vim_account(indata["vimAccountId"])
 402             for in_vnf in get_iterable(indata.get("vnf")):
 403                 vnfd = check_valid_vnf_member_index(in_vnf["member-vnf-index"])
 404                 _check_vnf_instantiation_params(in_vnf, vnfd)
 405                 if in_vnf.get("vimAccountId"):
 406                     check_valid_vim_account(in_vnf["vimAccountId"])
 407
 408             for in_vld in get_iterable(indata.get("vld")):
 409                 for vldd in get_iterable(nsd.get("vld")):
 410                     if in_vld["name"] == vldd["name"] or in_vld["name"] == vldd["id"]:
 411                         break
 412                 else:
 413                     raise EngineException("Invalid parameter vld:name='{}' is not present at nsd:vld".format(
 414                         in_vld["name"]))
 415
 416     def _look_for_pdu(self, session, rollback, vnfr, vim_account):
 417         """
 418         Look for a free PDU in the catalog matching vdur type and interfaces. Fills vdur with ip_address information
 419         :param vdur: vnfr:vdur descriptor. It is modified with pdu interface info if pdu is found
 420         :param member_vnf_index: used just for logging. Target vnfd of nsd
 421         :param vim_account:
 422         :return: vder_update: dictionary to update vnfr:vdur with pdu info. In addition it modified choosen pdu to set
 423         at status IN_USE
 424         """
 425         vnfr_update = {}
 426         rollback_vnfr = {}
 427         for vdur_index, vdur in enumerate(get_iterable(vnfr.get("vdur"))):
 428             if not vdur.get("pdu-type"):
 429                 continue
 430             pdu_type = vdur.get("pdu-type")
 431             pdu_filter = self._get_project_filter(session, write=True, show_all=True)
 432             pdu_filter["vim.vim_accounts"] = vim_account
 433             pdu_filter["type"] = pdu_type
 434             pdu_filter["_admin.operationalState"] = "ENABLED"
 435             pdu_filter["_admin.usageSate"] = "NOT_IN_USE",
 436             # TODO feature 1417: "shared": True,
 437
 438             available_pdus = self.db.get_list("pdus", pdu_filter)
 439             for pdu in available_pdus:
 440                 # step 1 check if this pdu contains needed interfaces:
 441                 match_interfaces = True
 442                 for vdur_interface in vdur["interfaces"]:
 443                     for pdu_interface in pdu["interfaces"]:
 444                         if pdu_interface["name"] == vdur_interface["name"]:
 445                             # TODO feature 1417: match per mgmt type
 446                             break
 447                     else:  # no interface found for name
 448                         match_interfaces = False
 449                         break
 450                 if match_interfaces:
 451                     break
 452             else:
 453                 raise EngineException(
 454                     "No PDU of type={} found for member_vnf_index={} at vim_account={} matching interface "
 455                     "names".format(vdur["vdu-id-ref"], vnfr["member-vnf-index-ref"], pdu_type))
 456
 457             # step 2. Update pdu
 458             rollback_pdu = {
 459                 "_admin.usageState": pdu["_admin"]["usageState"],
 460                 "_admin.usage.vnfr_id": None,
 461                 "_admin.usage.nsr_id": None,
 462                 "_admin.usage.vdur": None,
 463             }
 464             self.db.set_one("pdus", {"_id": pdu["_id"]},
 465                             {"_admin.usageSate": "IN_USE",
 466                              "_admin.usage.vnfr_id": vnfr["_id"],
 467                              "_admin.usage.nsr_id": vnfr["nsr-id-ref"],
 468                              "_admin.usage.vdur": vdur["vdu-id-ref"]}
 469                             )
 470             rollback.append({"topic": "pdus", "_id": pdu["_id"], "operation": "set", "content": rollback_pdu})
 471
 472             # step 3. Fill vnfr info by filling vdur
 473             vdu_text = "vdur.{}".format(vdur_index)
 474             rollback_vnfr[vdu_text + ".pdu-id"] = None
 475             vnfr_update[vdu_text + ".pdu-id"] = pdu["_id"]
 476             for iface_index, vdur_interface in enumerate(vdur["interfaces"]):
 477                 for pdu_interface in pdu["interfaces"]:
 478                     if pdu_interface["name"] == vdur_interface["name"]:
 479                         iface_text = vdu_text + ".interfaces.{}".format(iface_index)
 480                         for k, v in pdu_interface.items():
 481                             vnfr_update[iface_text + ".{}".format(k)] = v
 482                             rollback_vnfr[iface_text + ".{}".format(k)] = vdur_interface.get(v)
 483                         break
 484
 485         if vnfr_update:
 486             self.db.set_one("vnfrs", {"_id": vnfr["_id"]}, vnfr_update)
 487             rollback.append({"topic": "vnfrs", "_id": vnfr["_id"], "operation": "set", "content": rollback_vnfr})
 488         return
 489
 490     def _update_vnfrs(self, session, rollback, nsr, indata):
 491         vnfrs = None
 492         # get vnfr
 493         nsr_id = nsr["_id"]
 494         vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
 495
 496         for vnfr in vnfrs:
 497             vnfr_update = {}
 498             vnfr_update_rollback = {}
 499             member_vnf_index = vnfr["member-vnf-index-ref"]
 500             # update vim-account-id
 501
 502             vim_account = indata["vimAccountId"]
 503             # check instantiate parameters
 504             for vnf_inst_params in get_iterable(indata.get("vnf")):
 505                 if vnf_inst_params["member-vnf-index"] != member_vnf_index:
 506                     continue
 507                 if vnf_inst_params.get("vimAccountId"):
 508                     vim_account = vnf_inst_params.get("vimAccountId")
 509
 510             vnfr_update["vim-account-id"] = vim_account
 511             vnfr_update_rollback["vim-account-id"] = vnfr.get("vim-account-id")
 512
 513             # get pdu
 514             self._look_for_pdu(session, rollback, vnfr, vim_account)
 515             # TODO change instantiation parameters to set network
 516
 517     def _create_nslcmop(self, session, nsInstanceId, operation, params):
 518         now = time()
 519         _id = str(uuid4())
 520         nslcmop = {
 521             "id": _id,
 522             "_id": _id,
 523             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
 524             "statusEnteredTime": now,
 525             "nsInstanceId": nsInstanceId,
 526             "lcmOperationType": operation,
 527             "startTime": now,
 528             "isAutomaticInvocation": False,
 529             "operationParams": params,
 530             "isCancelPending": False,
 531             "links": {
 532                 "self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id,
 533                 "nsInstance": "/osm/nslcm/v1/ns_instances/" + nsInstanceId,
 534             }
 535         }
 536         return nslcmop
 537
 538     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
 539         """
 540         Performs a new operation over a ns
 541         :param rollback: list to append created items at database in case a rollback must to be done
 542         :param session: contains the used login username and working project
 543         :param indata: descriptor with the parameters of the operation. It must contains among others
 544             nsInstanceId: _id of the nsr to perform the operation
 545             operation: it can be: instantiate, terminate, action, TODO: update, heal
 546         :param kwargs: used to override the indata descriptor
 547         :param headers: http request headers
 548         :param force: If True avoid some dependence checks
 549         :param make_public: Make the created item public to all projects
 550         :return: id of the nslcmops
 551         """
 552         try:
 553             # Override descriptor with query string kwargs
 554             self._update_input_with_kwargs(indata, kwargs)
 555             operation = indata["lcmOperationType"]
 556             nsInstanceId = indata["nsInstanceId"]
 557
 558             validate_input(indata, self.operation_schema[operation])
 559             # get ns from nsr_id
 560             _filter = BaseTopic._get_project_filter(session, write=True, show_all=False)
 561             _filter["_id"] = nsInstanceId
 562             nsr = self.db.get_one("nsrs", _filter)
 563
 564             # initial checking
 565             if not nsr["_admin"].get("nsState") or nsr["_admin"]["nsState"] == "NOT_INSTANTIATED":
 566                 if operation == "terminate" and indata.get("autoremove"):
 567                     # NSR must be deleted
 568                     return self.delete(session, nsInstanceId)
 569                 if operation != "instantiate":
 570                     raise EngineException("ns_instance '{}' cannot be '{}' because it is not instantiated".format(
 571                         nsInstanceId, operation), HTTPStatus.CONFLICT)
 572             else:
 573                 if operation == "instantiate" and not indata.get("force"):
 574                     raise EngineException("ns_instance '{}' cannot be '{}' because it is already instantiated".format(
 575                         nsInstanceId, operation), HTTPStatus.CONFLICT)
 576             self._check_ns_operation(session, nsr, operation, indata)
 577             if operation == "instantiate":
 578                 self._update_vnfrs(session, rollback, nsr, indata)
 579             nslcmop_desc = self._create_nslcmop(session, nsInstanceId, operation, indata)
 580             self.format_on_new(nslcmop_desc, session["project_id"], make_public=make_public)
 581             _id = self.db.create("nslcmops", nslcmop_desc)
 582             rollback.append({"topic": "nslcmops", "_id": _id})
 583             self.msg.write("ns", operation, nslcmop_desc)
 584             return _id
 585         except ValidationError as e:
 586             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
 587         # except DbException as e:
 588         #     raise EngineException("Cannot get ns_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
 589
 590     def delete(self, session, _id, force=False, dry_run=False):
 591         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 592
 593     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 594         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)