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 validation import validate_input, ValidationError, ns_instantiate, ns_action, ns_scale, nsi_instantiate
  22 from base_topic import BaseTopic, EngineException, get_iterable
  23 from descriptor_topics import DescriptorTopic
  24
  25 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
  26
  27
  28 class NsrTopic(BaseTopic):
  29     topic = "nsrs"
  30     topic_msg = "ns"
  31
  32     def __init__(self, db, fs, msg):
  33         BaseTopic.__init__(self, db, fs, msg)
  34
  35     def _check_descriptor_dependencies(self, session, descriptor):
  36         """
  37         Check that the dependent descriptors exist on a new descriptor or edition
  38         :param session: client session information
  39         :param descriptor: descriptor to be inserted or edit
  40         :return: None or raises exception
  41         """
  42         if not descriptor.get("nsdId"):
  43             return
  44         nsd_id = descriptor["nsdId"]
  45         if not self.get_item_list(session, "nsds", {"id": nsd_id}):
  46             raise EngineException("Descriptor error at nsdId='{}' references a non exist nsd".format(nsd_id),
  47                                   http_code=HTTPStatus.CONFLICT)
  48
  49     @staticmethod
  50     def format_on_new(content, project_id=None, make_public=False):
  51         BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
  52         content["_admin"]["nsState"] = "NOT_INSTANTIATED"
  53
  54     def check_conflict_on_del(self, session, _id, force=False):
  55         if force:
  56             return
  57         nsr = self.db.get_one("nsrs", {"_id": _id})
  58         if nsr["_admin"].get("nsState") == "INSTANTIATED":
  59             raise EngineException("nsr '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
  60                                   "Launch 'terminate' operation first; or force deletion".format(_id),
  61                                   http_code=HTTPStatus.CONFLICT)
  62
  63     def delete(self, session, _id, force=False, dry_run=False):
  64         """
  65         Delete item by its internal _id
  66         :param session: contains the used login username, working project, and admin rights
  67         :param _id: server internal id
  68         :param force: indicates if deletion must be forced in case of conflict
  69         :param dry_run: make checking but do not delete
  70         :return: dictionary with deleted item _id. It raises EngineException on error: not found, conflict, ...
  71         """
  72         # TODO add admin to filter, validate rights
  73         BaseTopic.delete(self, session, _id, force, dry_run=True)
  74         if dry_run:
  75             return
  76
  77         v = self.db.del_one("nsrs", {"_id": _id})
  78         self.db.del_list("nslcmops", {"nsInstanceId": _id})
  79         self.db.del_list("vnfrs", {"nsr-id-ref": _id})
  80         # set all used pdus as free
  81         self.db.set_list("pdus", {"_admin.usage.nsr_id": _id},
  82                          {"_admin.usageState": "NOT_IN_USE", "_admin.usage": None})
  83         self._send_msg("deleted", {"_id": _id})
  84         return v
  85
  86     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
  87         """
  88         Creates a new nsr into database. It also creates needed vnfrs
  89         :param rollback: list to append the created items at database in case a rollback must be done
  90         :param session: contains the used login username and working project
  91         :param indata: params to be used for the nsr
  92         :param kwargs: used to override the indata descriptor
  93         :param headers: http request headers
  94         :param force: If True avoid some dependence checks
  95         :param make_public: Make the created item public to all projects
  96         :return: the _id of nsr descriptor created at database
  97         """
  98
  99         try:
 100             ns_request = self._remove_envelop(indata)
 101             # Override descriptor with query string kwargs
 102             self._update_input_with_kwargs(ns_request, kwargs)
 103             self._validate_input_new(ns_request, force)
 104
 105             step = ""
 106             # look for nsr
 107             step = "getting nsd id='{}' from database".format(ns_request.get("nsdId"))
 108             _filter = {"_id": ns_request["nsdId"]}
 109             _filter.update(BaseTopic._get_project_filter(session, write=False, show_all=True))
 110             nsd = self.db.get_one("nsds", _filter)
 111
 112             nsr_id = str(uuid4())
 113             now = time()
 114             step = "filling nsr from input data"
 115             nsr_descriptor = {
 116                 "name": ns_request["nsName"],
 117                 "name-ref": ns_request["nsName"],
 118                 "short-name": ns_request["nsName"],
 119                 "admin-status": "ENABLED",
 120                 "nsd": nsd,
 121                 "datacenter": ns_request["vimAccountId"],
 122                 "resource-orchestrator": "osmopenmano",
 123                 "description": ns_request.get("nsDescription", ""),
 124                 "constituent-vnfr-ref": [],
 125
 126                 "operational-status": "init",    # typedef ns-operational-
 127                 "config-status": "init",         # typedef config-states
 128                 "detailed-status": "scheduled",
 129
 130                 "orchestration-progress": {},
 131                 # {"networks": {"active": 0, "total": 0}, "vms": {"active": 0, "total": 0}},
 132
 133                 "crete-time": now,
 134                 "nsd-name-ref": nsd["name"],
 135                 "operational-events": [],   # "id", "timestamp", "description", "event",
 136                 "nsd-ref": nsd["id"],
 137                 "instantiate_params": ns_request,
 138                 "ns-instance-config-ref": nsr_id,
 139                 "id": nsr_id,
 140                 "_id": nsr_id,
 141                 # "input-parameter": xpath, value,
 142                 "ssh-authorized-key": ns_request.get("key-pair-ref"),  # TODO remove
 143             }
 144             ns_request["nsr_id"] = nsr_id
 145             # Create vld
 146             if nsd.get("vld"):
 147                 nsr_descriptor["vld"] = []
 148                 for nsd_vld in nsd.get("vld"):
 149                     nsr_descriptor["vld"].append(
 150                         {key: nsd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in nsd_vld})
 151
 152             # Create VNFR
 153             needed_vnfds = {}
 154             for member_vnf in nsd.get("constituent-vnfd", ()):
 155                 vnfd_id = member_vnf["vnfd-id-ref"]
 156                 step = "getting vnfd id='{}' constituent-vnfd='{}' from database".format(
 157                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 158                 if vnfd_id not in needed_vnfds:
 159                     # Obtain vnfd
 160                     vnfd = DescriptorTopic.get_one_by_id(self.db, session, "vnfds", vnfd_id)
 161                     vnfd.pop("_admin")
 162                     needed_vnfds[vnfd_id] = vnfd
 163                 else:
 164                     vnfd = needed_vnfds[vnfd_id]
 165                 step = "filling vnfr  vnfd-id='{}' constituent-vnfd='{}'".format(
 166                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 167                 vnfr_id = str(uuid4())
 168                 vnfr_descriptor = {
 169                     "id": vnfr_id,
 170                     "_id": vnfr_id,
 171                     "nsr-id-ref": nsr_id,
 172                     "member-vnf-index-ref": member_vnf["member-vnf-index"],
 173                     "created-time": now,
 174                     # "vnfd": vnfd,        # at OSM model.but removed to avoid data duplication TODO: revise
 175                     "vnfd-ref": vnfd_id,
 176                     "vnfd-id": vnfd["_id"],    # not at OSM model, but useful
 177                     "vim-account-id": None,
 178                     "vdur": [],
 179                     "connection-point": [],
 180                     "ip-address": None,  # mgmt-interface filled by LCM
 181                 }
 182
 183                 # Create vld
 184                 if vnfd.get("internal-vld"):
 185                     vnfr_descriptor["vld"] = []
 186                     for vnfd_vld in vnfd.get("internal-vld"):
 187                         vnfr_descriptor["vld"].append(
 188                             {key: vnfd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in
 189                              vnfd_vld})
 190
 191                 vnfd_mgmt_cp = vnfd["mgmt-interface"].get("cp")
 192                 for cp in vnfd.get("connection-point", ()):
 193                     vnf_cp = {
 194                         "name": cp["name"],
 195                         "connection-point-id": cp.get("id"),
 196                         "id": cp.get("id"),
 197                         # "ip-address", "mac-address" # filled by LCM
 198                         # vim-id  # TODO it would be nice having a vim port id
 199                     }
 200                     vnfr_descriptor["connection-point"].append(vnf_cp)
 201                 for vdu in vnfd.get("vdu", ()):
 202                     vdur = {
 203                         "vdu-id-ref": vdu["id"],
 204                         # TODO      "name": ""     Name of the VDU in the VIM
 205                         "ip-address": None,  # mgmt-interface filled by LCM
 206                         # "vim-id", "flavor-id", "image-id", "management-ip" # filled by LCM
 207                         "internal-connection-point": [],
 208                         "interfaces": [],
 209                     }
 210                     if vdu.get("pdu-type"):
 211                         vdur["pdu-type"] = vdu["pdu-type"]
 212                     # TODO volumes: name, volume-id
 213                     for icp in vdu.get("internal-connection-point", ()):
 214                         vdu_icp = {
 215                             "id": icp["id"],
 216                             "connection-point-id": icp["id"],
 217                             "name": icp.get("name"),
 218                             # "ip-address", "mac-address" # filled by LCM
 219                             # vim-id  # TODO it would be nice having a vim port id
 220                         }
 221                         vdur["internal-connection-point"].append(vdu_icp)
 222                     for iface in vdu.get("interface", ()):
 223                         vdu_iface = {
 224                             "name": iface.get("name"),
 225                             # "ip-address", "mac-address" # filled by LCM
 226                             # vim-id  # TODO it would be nice having a vim port id
 227                         }
 228                         if vnfd_mgmt_cp and iface.get("external-connection-point-ref") == vnfd_mgmt_cp:
 229                             vdu_iface["mgmt-vnf"] = True
 230                         if iface.get("mgmt-interface"):
 231                             vdu_iface["mgmt-interface"] = True  # TODO change to mgmt-vdu
 232
 233                         # look for network where this interface is connected
 234                         if iface.get("external-connection-point-ref"):
 235                             for nsd_vld in get_iterable(nsd.get("vld")):
 236                                 for nsd_vld_cp in get_iterable(nsd_vld.get("vnfd-connection-point-ref")):
 237                                     if nsd_vld_cp.get("vnfd-connection-point-ref") == \
 238                                             iface["external-connection-point-ref"] and \
 239                                             nsd_vld_cp.get("member-vnf-index-ref") == member_vnf["member-vnf-index"]:
 240                                         vdu_iface["ns-vld-id"] = nsd_vld["id"]
 241                                         break
 242                                 else:
 243                                     continue
 244                                 break
 245                         elif iface.get("internal-connection-point-ref"):
 246                             for vnfd_ivld in get_iterable(vnfd.get("internal-vld")):
 247                                 for vnfd_ivld_icp in get_iterable(vnfd_ivld.get("internal-connection-point")):
 248                                     if vnfd_ivld_icp.get("id-ref") == iface["internal-connection-point-ref"]:
 249                                         vdu_iface["vnf-vld-id"] = vnfd_ivld["id"]
 250                                         break
 251                                 else:
 252                                     continue
 253                                 break
 254
 255                         vdur["interfaces"].append(vdu_iface)
 256                     count = vdu.get("count", 1)
 257                     if count is None:
 258                         count = 1
 259                     count = int(count)    # TODO remove when descriptor serialized with payngbind
 260                     for index in range(0, count):
 261                         if index:
 262                             vdur = deepcopy(vdur)
 263                         vdur["_id"] = str(uuid4())
 264                         vdur["count-index"] = index
 265                         vnfr_descriptor["vdur"].append(vdur)
 266
 267                 step = "creating vnfr vnfd-id='{}' constituent-vnfd='{}' at database".format(
 268                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 269
 270                 # add at database
 271                 BaseTopic.format_on_new(vnfr_descriptor, session["project_id"], make_public=make_public)
 272                 self.db.create("vnfrs", vnfr_descriptor)
 273                 rollback.append({"topic": "vnfrs", "_id": vnfr_id})
 274                 nsr_descriptor["constituent-vnfr-ref"].append(vnfr_id)
 275
 276             step = "creating nsr at database"
 277             self.format_on_new(nsr_descriptor, session["project_id"], make_public=make_public)
 278             self.db.create("nsrs", nsr_descriptor)
 279             rollback.append({"topic": "nsrs", "_id": nsr_id})
 280             return nsr_id
 281         except Exception as e:
 282             self.logger.exception("Exception {} at NsrTopic.new()".format(e), exc_info=True)
 283             raise EngineException("Error {}: {}".format(step, e))
 284         except ValidationError as e:
 285             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
 286
 287     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 288         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 289
 290
 291 class VnfrTopic(BaseTopic):
 292     topic = "vnfrs"
 293     topic_msg = None
 294
 295     def __init__(self, db, fs, msg):
 296         BaseTopic.__init__(self, db, fs, msg)
 297
 298     def delete(self, session, _id, force=False, dry_run=False):
 299         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 300
 301     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 302         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 303
 304     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
 305         # Not used because vnfrs are created and deleted by NsrTopic class directly
 306         raise EngineException("Method new called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 307
 308
 309 class NsLcmOpTopic(BaseTopic):
 310     topic = "nslcmops"
 311     topic_msg = "ns"
 312     operation_schema = {    # mapping between operation and jsonschema to validate
 313         "instantiate": ns_instantiate,
 314         "action": ns_action,
 315         "scale": ns_scale,
 316         "terminate": None,
 317     }
 318
 319     def __init__(self, db, fs, msg):
 320         BaseTopic.__init__(self, db, fs, msg)
 321
 322     def _check_ns_operation(self, session, nsr, operation, indata):
 323         """
 324         Check that user has enter right parameters for the operation
 325         :param session:
 326         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
 327         :param indata: descriptor with the parameters of the operation
 328         :return: None
 329         """
 330         vnfds = {}
 331         vim_accounts = []
 332         nsd = nsr["nsd"]
 333
 334         def check_valid_vnf_member_index(member_vnf_index):
 335             # TODO change to vnfR
 336             for vnf in nsd["constituent-vnfd"]:
 337                 if member_vnf_index == vnf["member-vnf-index"]:
 338                     vnfd_id = vnf["vnfd-id-ref"]
 339                     if vnfd_id not in vnfds:
 340                         vnfds[vnfd_id] = self.db.get_one("vnfds", {"id": vnfd_id})
 341                     return vnfds[vnfd_id]
 342             else:
 343                 raise EngineException("Invalid parameter member_vnf_index='{}' is not one of the "
 344                                       "nsd:constituent-vnfd".format(member_vnf_index))
 345
 346         def _check_vnf_instantiation_params(in_vnfd, vnfd):
 347
 348             for in_vdu in get_iterable(in_vnfd.get("vdu")):
 349                 for vdu in get_iterable(vnfd.get("vdu")):
 350                     if in_vdu["id"] == vdu["id"]:
 351                         for volume in get_iterable(in_vdu.get("volume")):
 352                             for volumed in get_iterable(vdu.get("volumes")):
 353                                 if volumed["name"] == volume["name"]:
 354                                     break
 355                             else:
 356                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 357                                                       "volume:name='{}' is not present at vnfd:vdu:volumes list".
 358                                                       format(in_vnf["member-vnf-index"], in_vdu["id"],
 359                                                              volume["name"]))
 360                         for in_iface in get_iterable(in_vdu["interface"]):
 361                             for iface in get_iterable(vdu.get("interface")):
 362                                 if in_iface["name"] == iface["name"]:
 363                                     break
 364                             else:
 365                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 366                                                       "interface[name='{}'] is not present at vnfd:vdu:interface"
 367                                                       .format(in_vnf["member-vnf-index"], in_vdu["id"],
 368                                                               in_iface["name"]))
 369                         break
 370                 else:
 371                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}'] is is not present "
 372                                           "at vnfd:vdu".format(in_vnf["member-vnf-index"], in_vdu["id"]))
 373
 374             for in_ivld in get_iterable(in_vnfd.get("internal-vld")):
 375                 for ivld in get_iterable(vnfd.get("internal-vld")):
 376                     if in_ivld["name"] == ivld["name"] or in_ivld["name"] == ivld["id"]:
 377                         for in_icp in get_iterable(in_ivld["internal-connection-point"]):
 378                             for icp in ivld["internal-connection-point"]:
 379                                 if in_icp["id-ref"] == icp["id-ref"]:
 380                                     break
 381                             else:
 382                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld[name"
 383                                                       "='{}']:internal-connection-point[id-ref:'{}'] is not present at "
 384                                                       "vnfd:internal-vld:name/id:internal-connection-point"
 385                                                       .format(in_vnf["member-vnf-index"], in_ivld["name"],
 386                                                               in_icp["id-ref"], vnfd["id"]))
 387                         break
 388                 else:
 389                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld:name='{}'"
 390                                           " is not present at vnfd '{}'".format(in_vnf["member-vnf-index"],
 391                                                                                 in_ivld["name"], vnfd["id"]))
 392
 393         def check_valid_vim_account(vim_account):
 394             if vim_account in vim_accounts:
 395                 return
 396             try:
 397                 db_filter = self._get_project_filter(session, write=False, show_all=True)
 398                 db_filter["_id"] = vim_account
 399                 self.db.get_one("vim_accounts", db_filter)
 400             except Exception:
 401                 raise EngineException("Invalid vimAccountId='{}' not present for the project".format(vim_account))
 402             vim_accounts.append(vim_account)
 403
 404         if operation == "action":
 405             # check vnf_member_index
 406             if indata.get("vnf_member_index"):
 407                 indata["member_vnf_index"] = indata.pop("vnf_member_index")    # for backward compatibility
 408             if not indata.get("member_vnf_index"):
 409                 raise EngineException("Missing 'member_vnf_index' parameter")
 410             vnfd = check_valid_vnf_member_index(indata["member_vnf_index"])
 411             # check primitive
 412             for config_primitive in get_iterable(vnfd.get("vnf-configuration", {}).get("config-primitive")):
 413                 if indata["primitive"] == config_primitive["name"]:
 414                     # check needed primitive_params are provided
 415                     if indata.get("primitive_params"):
 416                         in_primitive_params_copy = copy(indata["primitive_params"])
 417                     else:
 418                         in_primitive_params_copy = {}
 419                     for paramd in get_iterable(config_primitive.get("parameter")):
 420                         if paramd["name"] in in_primitive_params_copy:
 421                             del in_primitive_params_copy[paramd["name"]]
 422                         elif not paramd.get("default-value"):
 423                             raise EngineException("Needed parameter {} not provided for primitive '{}'".format(
 424                                 paramd["name"], indata["primitive"]))
 425                     # check no extra primitive params are provided
 426                     if in_primitive_params_copy:
 427                         raise EngineException("parameter/s '{}' not present at vnfd for primitive '{}'".format(
 428                             list(in_primitive_params_copy.keys()), indata["primitive"]))
 429                     break
 430             else:
 431                 raise EngineException("Invalid primitive '{}' is not present at vnfd".format(indata["primitive"]))
 432         if operation == "scale":
 433             vnfd = check_valid_vnf_member_index(indata["scaleVnfData"]["scaleByStepData"]["member-vnf-index"])
 434             for scaling_group in get_iterable(vnfd.get("scaling-group-descriptor")):
 435                 if indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"] == scaling_group["name"]:
 436                     break
 437             else:
 438                 raise EngineException("Invalid scaleVnfData:scaleByStepData:scaling-group-descriptor '{}' is not "
 439                                       "present at vnfd:scaling-group-descriptor".format(
 440                                           indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"]))
 441         if operation == "instantiate":
 442             # check vim_account
 443             check_valid_vim_account(indata["vimAccountId"])
 444             for in_vnf in get_iterable(indata.get("vnf")):
 445                 vnfd = check_valid_vnf_member_index(in_vnf["member-vnf-index"])
 446                 _check_vnf_instantiation_params(in_vnf, vnfd)
 447                 if in_vnf.get("vimAccountId"):
 448                     check_valid_vim_account(in_vnf["vimAccountId"])
 449
 450             for in_vld in get_iterable(indata.get("vld")):
 451                 for vldd in get_iterable(nsd.get("vld")):
 452                     if in_vld["name"] == vldd["name"] or in_vld["name"] == vldd["id"]:
 453                         break
 454                 else:
 455                     raise EngineException("Invalid parameter vld:name='{}' is not present at nsd:vld".format(
 456                         in_vld["name"]))
 457
 458     def _look_for_pdu(self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback):
 459         """
 460         Look for a free PDU in the catalog matching vdur type and interfaces. Fills vnfr.vdur with the interface
 461         (ip_address, ...) information.
 462         Modifies PDU _admin.usageState to 'IN_USE'
 463
 464         :param session: client session information
 465         :param rollback: list with the database modifications to rollback if needed
 466         :param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
 467         :param vim_account: vim_account where this vnfr should be deployed
 468         :param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
 469         :param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
 470                                      of the changed vnfr is needed
 471
 472         :return: List of PDU interfaces that are connected to an existing VIM network. Each item contains:
 473                  "vim-network-name": used at VIM
 474                   "name": interface name
 475                   "vnf-vld-id": internal VNFD vld where this interface is connected, or
 476                   "ns-vld-id": NSD vld where this interface is connected.
 477                   NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
 478         """
 479
 480         ifaces_forcing_vim_network = []
 481         for vdur_index, vdur in enumerate(get_iterable(vnfr.get("vdur"))):
 482             if not vdur.get("pdu-type"):
 483                 continue
 484             pdu_type = vdur.get("pdu-type")
 485             pdu_filter = self._get_project_filter(session, write=True, show_all=True)
 486             pdu_filter["vim_accounts"] = vim_account
 487             pdu_filter["type"] = pdu_type
 488             pdu_filter["_admin.operationalState"] = "ENABLED"
 489             pdu_filter["_admin.usageState"] = "NOT_IN_USE"
 490             # TODO feature 1417: "shared": True,
 491
 492             available_pdus = self.db.get_list("pdus", pdu_filter)
 493             for pdu in available_pdus:
 494                 # step 1 check if this pdu contains needed interfaces:
 495                 match_interfaces = True
 496                 for vdur_interface in vdur["interfaces"]:
 497                     for pdu_interface in pdu["interfaces"]:
 498                         if pdu_interface["name"] == vdur_interface["name"]:
 499                             # TODO feature 1417: match per mgmt type
 500                             break
 501                     else:  # no interface found for name
 502                         match_interfaces = False
 503                         break
 504                 if match_interfaces:
 505                     break
 506             else:
 507                 raise EngineException(
 508                     "No PDU of type={} at vim_account={} found for member_vnf_index={}, vdu={} matching interface "
 509                     "names".format(pdu_type, vim_account, vnfr["member-vnf-index-ref"], vdur["vdu-id-ref"]))
 510
 511             # step 2. Update pdu
 512             rollback_pdu = {
 513                 "_admin.usageState": pdu["_admin"]["usageState"],
 514                 "_admin.usage.vnfr_id": None,
 515                 "_admin.usage.nsr_id": None,
 516                 "_admin.usage.vdur": None,
 517             }
 518             self.db.set_one("pdus", {"_id": pdu["_id"]},
 519                             {"_admin.usageState": "IN_USE",
 520                              "_admin.usage": {"vnfr_id": vnfr["_id"],
 521                                               "nsr_id": vnfr["nsr-id-ref"],
 522                                               "vdur": vdur["vdu-id-ref"]}
 523                              })
 524             rollback.append({"topic": "pdus", "_id": pdu["_id"], "operation": "set", "content": rollback_pdu})
 525
 526             # step 3. Fill vnfr info by filling vdur
 527             vdu_text = "vdur.{}".format(vdur_index)
 528             vnfr_update_rollback[vdu_text + ".pdu-id"] = None
 529             vnfr_update[vdu_text + ".pdu-id"] = pdu["_id"]
 530             for iface_index, vdur_interface in enumerate(vdur["interfaces"]):
 531                 for pdu_interface in pdu["interfaces"]:
 532                     if pdu_interface["name"] == vdur_interface["name"]:
 533                         iface_text = vdu_text + ".interfaces.{}".format(iface_index)
 534                         for k, v in pdu_interface.items():
 535                             if k in ("ip-address", "mac-address"):  # TODO: switch-xxxxx must be inserted
 536                                 vnfr_update[iface_text + ".{}".format(k)] = v
 537                                 vnfr_update_rollback[iface_text + ".{}".format(k)] = vdur_interface.get(v)
 538                         if pdu_interface.get("ip-address"):
 539                             if vdur_interface.get("mgmt-interface"):
 540                                 vnfr_update_rollback[vdu_text + ".ip-address"] = vdur.get("ip-address")
 541                                 vnfr_update[vdu_text + ".ip-address"] = pdu_interface["ip-address"]
 542                             if vdur_interface.get("mgmt-vnf"):
 543                                 vnfr_update_rollback["ip-address"] = vnfr.get("ip-address")
 544                                 vnfr_update["ip-address"] = pdu_interface["ip-address"]
 545                         if pdu_interface.get("vim-network-name") or pdu_interface.get("vim-network-id"):
 546                             ifaces_forcing_vim_network.append({
 547                                 "name": vdur_interface.get("vnf-vld-id") or vdur_interface.get("ns-vld-id"),
 548                                 "vnf-vld-id": vdur_interface.get("vnf-vld-id"),
 549                                 "ns-vld-id": vdur_interface.get("ns-vld-id")})
 550                             if pdu_interface.get("vim-network-id"):
 551                                 ifaces_forcing_vim_network.append({
 552                                     "vim-network-id": pdu_interface.get("vim-network-id")})
 553                             if pdu_interface.get("vim-network-name"):
 554                                 ifaces_forcing_vim_network.append({
 555                                     "vim-network-name": pdu_interface.get("vim-network-name")})
 556                         break
 557
 558         return ifaces_forcing_vim_network
 559
 560     def _update_vnfrs(self, session, rollback, nsr, indata):
 561         vnfrs = None
 562         # get vnfr
 563         nsr_id = nsr["_id"]
 564         vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
 565
 566         for vnfr in vnfrs:
 567             vnfr_update = {}
 568             vnfr_update_rollback = {}
 569             member_vnf_index = vnfr["member-vnf-index-ref"]
 570             # update vim-account-id
 571
 572             vim_account = indata["vimAccountId"]
 573             # check instantiate parameters
 574             for vnf_inst_params in get_iterable(indata.get("vnf")):
 575                 if vnf_inst_params["member-vnf-index"] != member_vnf_index:
 576                     continue
 577                 if vnf_inst_params.get("vimAccountId"):
 578                     vim_account = vnf_inst_params.get("vimAccountId")
 579
 580             vnfr_update["vim-account-id"] = vim_account
 581             vnfr_update_rollback["vim-account-id"] = vnfr.get("vim-account-id")
 582
 583             # get pdu
 584             ifaces_forcing_vim_network = self._look_for_pdu(session, rollback, vnfr, vim_account, vnfr_update,
 585                                                             vnfr_update_rollback)
 586
 587             # updata database vnfr
 588             self.db.set_one("vnfrs", {"_id": vnfr["_id"]}, vnfr_update)
 589             rollback.append({"topic": "vnfrs", "_id": vnfr["_id"], "operation": "set", "content": vnfr_update_rollback})
 590
 591             # Update indada in case pdu forces to use a concrete vim-network-name
 592             # TODO check if user has already insert a vim-network-name and raises an error
 593             if not ifaces_forcing_vim_network:
 594                 continue
 595             for iface_info in ifaces_forcing_vim_network:
 596                 if iface_info.get("ns-vld-id"):
 597                     if "vld" not in indata:
 598                         indata["vld"] = []
 599                     indata["vld"].append({key: iface_info[key] for key in
 600                                           ("name", "vim-network-name", "vim-network-id") if iface_info.get(key)})
 601
 602                 elif iface_info.get("vnf-vld-id"):
 603                     if "vnf" not in indata:
 604                         indata["vnf"] = []
 605                     indata["vnf"].append({
 606                         "member-vnf-index": member_vnf_index,
 607                         "internal-vld": [{key: iface_info[key] for key in
 608                                           ("name", "vim-network-name", "vim-network-id") if iface_info.get(key)}]
 609                     })
 610
 611     @staticmethod
 612     def _create_nslcmop(nsr_id, operation, params):
 613         """
 614         Creates a ns-lcm-opp content to be stored at database.
 615         :param nsr_id: internal id of the instance
 616         :param operation: instantiate, terminate, scale, action, ...
 617         :param params: user parameters for the operation
 618         :return: dictionary following SOL005 format
 619         """
 620         now = time()
 621         _id = str(uuid4())
 622         nslcmop = {
 623             "id": _id,
 624             "_id": _id,
 625             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
 626             "statusEnteredTime": now,
 627             "nsInstanceId": nsr_id,
 628             "lcmOperationType": operation,
 629             "startTime": now,
 630             "isAutomaticInvocation": False,
 631             "operationParams": params,
 632             "isCancelPending": False,
 633             "links": {
 634                 "self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id,
 635                 "nsInstance": "/osm/nslcm/v1/ns_instances/" + nsr_id,
 636             }
 637         }
 638         return nslcmop
 639
 640     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False,
 641             slice_object=False):
 642         """
 643         Performs a new operation over a ns
 644         :param rollback: list to append created items at database in case a rollback must to be done
 645         :param session: contains the used login username and working project
 646         :param indata: descriptor with the parameters of the operation. It must contains among others
 647             nsInstanceId: _id of the nsr to perform the operation
 648             operation: it can be: instantiate, terminate, action, TODO: update, heal
 649         :param kwargs: used to override the indata descriptor
 650         :param headers: http request headers
 651         :param force: If True avoid some dependence checks
 652         :param make_public: Make the created item public to all projects
 653         :return: id of the nslcmops
 654         """
 655         try:
 656             # Override descriptor with query string kwargs
 657             self._update_input_with_kwargs(indata, kwargs)
 658             operation = indata["lcmOperationType"]
 659             nsInstanceId = indata["nsInstanceId"]
 660
 661             validate_input(indata, self.operation_schema[operation])
 662             # get ns from nsr_id
 663             _filter = BaseTopic._get_project_filter(session, write=True, show_all=False)
 664             _filter["_id"] = nsInstanceId
 665             nsr = self.db.get_one("nsrs", _filter)
 666
 667             # initial checking
 668             if not nsr["_admin"].get("nsState") or nsr["_admin"]["nsState"] == "NOT_INSTANTIATED":
 669                 if operation == "terminate" and indata.get("autoremove"):
 670                     # NSR must be deleted
 671                     return None    # a none in this case is used to indicate not instantiated. It can be removed
 672                 if operation != "instantiate":
 673                     raise EngineException("ns_instance '{}' cannot be '{}' because it is not instantiated".format(
 674                         nsInstanceId, operation), HTTPStatus.CONFLICT)
 675             else:
 676                 if operation == "instantiate" and not indata.get("force"):
 677                     raise EngineException("ns_instance '{}' cannot be '{}' because it is already instantiated".format(
 678                         nsInstanceId, operation), HTTPStatus.CONFLICT)
 679             self._check_ns_operation(session, nsr, operation, indata)
 680
 681             if operation == "instantiate":
 682                 self._update_vnfrs(session, rollback, nsr, indata)
 683
 684             nslcmop_desc = self._create_nslcmop(nsInstanceId, operation, indata)
 685             self.format_on_new(nslcmop_desc, session["project_id"], make_public=make_public)
 686             _id = self.db.create("nslcmops", nslcmop_desc)
 687             rollback.append({"topic": "nslcmops", "_id": _id})
 688             if not slice_object:
 689                 self.msg.write("ns", operation, nslcmop_desc)
 690             return _id
 691         except ValidationError as e:
 692             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
 693         # except DbException as e:
 694         #     raise EngineException("Cannot get ns_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
 695
 696     def delete(self, session, _id, force=False, dry_run=False):
 697         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 698
 699     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 700         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 701
 702
 703 class NsiTopic(BaseTopic):
 704     topic = "nsis"
 705     topic_msg = "nsi"
 706
 707     def __init__(self, db, fs, msg):
 708         BaseTopic.__init__(self, db, fs, msg)
 709
 710     def _check_descriptor_dependencies(self, session, descriptor):
 711         """
 712         Check that the dependent descriptors exist on a new descriptor or edition
 713         :param session: client session information
 714         :param descriptor: descriptor to be inserted or edit
 715         :return: None or raises exception
 716         """
 717         if not descriptor.get("nst-ref"):
 718             return
 719         nstd_id = descriptor["nst-ref"]
 720         if not self.get_item_list(session, "nsts", {"id": nstd_id}):
 721             raise EngineException("Descriptor error at nst-ref='{}' references a non exist nstd".format(nstd_id),
 722                                   http_code=HTTPStatus.CONFLICT)
 723
 724     @staticmethod
 725     def format_on_new(content, project_id=None, make_public=False):
 726         BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
 727
 728     def check_conflict_on_del(self, session, _id, force=False):
 729         if force:
 730             return
 731         nsi = self.db.get_one("nsis", {"_id": _id})
 732         if nsi["_admin"].get("nsiState") == "INSTANTIATED":
 733             raise EngineException("nsi '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
 734                                   "Launch 'terminate' operation first; or force deletion".format(_id),
 735                                   http_code=HTTPStatus.CONFLICT)
 736
 737     def delete(self, session, _id, force=False, dry_run=False):
 738         """
 739         Delete item by its internal _id
 740         :param session: contains the used login username, working project, and admin rights
 741         :param _id: server internal id
 742         :param force: indicates if deletion must be forced in case of conflict
 743         :param dry_run: make checking but do not delete
 744         :return: dictionary with deleted item _id. It raises EngineException on error: not found, conflict, ...
 745         """
 746         # TODO add admin to filter, validate rights
 747         BaseTopic.delete(self, session, _id, force, dry_run=True)
 748         if dry_run:
 749             return
 750
 751         # deletes NetSlice instance object
 752         v = self.db.del_one("nsis", {"_id": _id})
 753
 754         # makes a temporal list of nsilcmops objects related to the _id given and deletes them from db
 755         _filter = {"netsliceInstanceId": _id}
 756         self.db.del_list("nsilcmops", _filter)
 757
 758         _filter = {"operationParams.netsliceInstanceId": _id}
 759         nslcmops_list = self.db.get_list("nslcmops", _filter)
 760
 761         for id_item in nslcmops_list:
 762             _filter = {"_id": id_item}
 763             nslcmop = self.db.get_one("nslcmops", _filter)
 764             nsr_id = nslcmop["operationParams"]["nsr_id"]
 765             NsrTopic.delete(self, session, nsr_id, force=False, dry_run=False)
 766         self._send_msg("deleted", {"_id": _id})
 767         return v
 768
 769     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
 770         """
 771         Creates a new netslice instance record into database. It also creates needed nsrs and vnfrs
 772         :param rollback: list to append the created items at database in case a rollback must be done
 773         :param session: contains the used login username and working project
 774         :param indata: params to be used for the nsir
 775         :param kwargs: used to override the indata descriptor
 776         :param headers: http request headers
 777         :param force: If True avoid some dependence checks
 778         :param make_public: Make the created item public to all projects
 779         :return: the _id of nsi descriptor created at database
 780         """
 781
 782         try:
 783             slice_request = self._remove_envelop(indata)
 784             # Override descriptor with query string kwargs
 785             self._update_input_with_kwargs(slice_request, kwargs)
 786             self._validate_input_new(slice_request, force)
 787
 788             step = ""
 789             # look for nstd
 790             step = "getting nstd id='{}' from database".format(slice_request.get("nstId"))
 791             _filter = {"_id": slice_request["nstId"]}
 792             _filter.update(BaseTopic._get_project_filter(session, write=False, show_all=True))
 793             nstd = self.db.get_one("nsts", _filter)
 794             nstd.pop("_admin", None)
 795             nstd.pop("_id", None)
 796             nsi_id = str(uuid4())
 797             step = "filling nsi_descriptor with input data"
 798
 799             # Creating the NSIR
 800             nsi_descriptor = {
 801                 "id": nsi_id,
 802                 "name": slice_request["nsiName"],
 803                 "description": slice_request.get("nsiDescription", ""),
 804                 "datacenter": slice_request["vimAccountId"],
 805                 "nst-ref": nstd["id"],
 806                 "instantiation_parameters": slice_request,
 807                 "network-slice-template": nstd,
 808                 "nsr-ref-list": [],
 809                 "vlr-list": [],
 810                 "_id": nsi_id,
 811             }
 812
 813             step = "creating nsi at database"
 814             self.format_on_new(nsi_descriptor, session["project_id"], make_public=make_public)
 815             nsi_descriptor["_admin"]["nsiState"] = "NOT_INSTANTIATED"
 816             nsi_descriptor["_admin"]["netslice-subnet"] = None
 817
 818             # Creating netslice-vld for the RO.
 819             step = "creating netslice-vld at database"
 820             instantiation_parameters = slice_request
 821
 822             # Building the vlds list to be deployed
 823             # From netslice descriptors, creating the initial list
 824             nsi_vlds = []
 825             if nstd.get("netslice-vld"):
 826                 # Building VLDs from NST
 827                 for netslice_vlds in nstd["netslice-vld"]:
 828                     nsi_vld = {}
 829                     # Adding nst vld name and global vimAccountId for netslice vld creation
 830                     nsi_vld["name"] = netslice_vlds["name"]
 831                     nsi_vld["vimAccountId"] = slice_request["vimAccountId"]
 832                     # Getting template Instantiation parameters from NST
 833                     for netslice_vld in netslice_vlds["nss-connection-point-ref"]:
 834                         for netslice_subnet in nstd["netslice-subnet"]:
 835                             nsi_vld["nsd-ref"] = netslice_subnet["nsd-ref"]
 836                             nsi_vld["nsd-connection-point-ref"] = netslice_vld["nsd-connection-point-ref"]
 837                             # Obtaining the vimAccountId from template instantiation parameter
 838                             if netslice_subnet.get("instantiation-parameters"):
 839                                 # Taking the vimAccountId from NST netslice-subnet instantiation parameters
 840                                 if netslice_subnet["instantiation-parameters"].get("vimAccountId"):
 841                                     netsn = netslice_subnet["instantiation-parameters"]["vimAccountId"]
 842                                     nsi_vld["vimAccountId"] = netsn
 843                             # Obtaining the vimAccountId from user instantiation parameter
 844                             if instantiation_parameters.get("netslice-subnet"):
 845                                 for ins_param in instantiation_parameters["netslice-subnet"]:
 846                                     if ins_param.get("id") == netslice_vld["nss-ref"]:
 847                                         if ins_param.get("vimAccountId"):
 848                                             nsi_vld["vimAccountId"] = ins_param["vimAccountId"]
 849                     # Adding vim-network-name defined by the user to vld
 850                     if instantiation_parameters.get("netslice-vld"):
 851                         for ins_param in instantiation_parameters["netslice-vld"]:
 852                             if ins_param["name"] == netslice_vlds["name"]:
 853                                 if ins_param.get("vim-network-name"):
 854                                     nsi_vld["vim-network-name"] = ins_param.get("vim-network-name")
 855                                 if ins_param.get("vim-network-id"):
 856                                     nsi_vld["vim-network-id"] = ins_param.get("vim-network-id")
 857                     nsi_vlds.append(nsi_vld)
 858
 859             nsi_descriptor["_admin"]["netslice-vld"] = nsi_vlds
 860             # Creating netslice-subnet_record.
 861             needed_nsds = {}
 862             services = []
 863
 864             for member_ns in nstd["netslice-subnet"]:
 865                 nsd_id = member_ns["nsd-ref"]
 866                 step = "getting nstd id='{}' constituent-nsd='{}' from database".format(
 867                     member_ns["nsd-ref"], member_ns["id"])
 868                 if nsd_id not in needed_nsds:
 869                     # Obtain nsd
 870                     nsd = DescriptorTopic.get_one_by_id(self.db, session, "nsds", nsd_id)
 871                     nsd.pop("_admin")
 872                     needed_nsds[nsd_id] = nsd
 873                     member_ns["_id"] = needed_nsds[nsd_id].get("_id")
 874                     services.append(member_ns)
 875                 else:
 876                     nsd = needed_nsds[nsd_id]
 877                     member_ns["_id"] = needed_nsds[nsd_id].get("_id")
 878                     services.append(member_ns)
 879
 880                 step = "filling nsir nsd-id='{}' constituent-nsd='{}' from database".format(
 881                     member_ns["nsd-ref"], member_ns["id"])
 882
 883             # creates Network Services records (NSRs)
 884             step = "creating nsrs at database using NsrTopic.new()"
 885             ns_params = slice_request.get("netslice-subnet")
 886
 887             nsrs_list = []
 888             nsi_netslice_subnet = []
 889             for service in services:
 890                 indata_ns = {}
 891                 indata_ns["nsdId"] = service["_id"]
 892                 indata_ns["nsName"] = slice_request.get("nsiName") + "." + service["id"]
 893                 indata_ns["vimAccountId"] = slice_request.get("vimAccountId")
 894                 indata_ns["nsDescription"] = service["description"]
 895                 indata_ns["key-pair-ref"] = None
 896
 897                 # NsrTopic(rollback, session, indata_ns, kwargs, headers, force)
 898                 # Overwriting ns_params filtering by nsName == netslice-subnet.id
 899
 900                 if ns_params:
 901                     for ns_param in ns_params:
 902                         if ns_param.get("id") == service["id"]:
 903                             copy_ns_param = deepcopy(ns_param)
 904                             del copy_ns_param["id"]
 905                             indata_ns.update(copy_ns_param)
 906                 # TODO: Improve network selection via networkID
 907                 if nsi_vlds:
 908                     indata_ns_list = []
 909                     for nsi_vld in nsi_vlds:
 910                         nsd = self.db.get_one("nsds", {"id": nsi_vld["nsd-ref"]})
 911                         if nsd["connection-point"]:
 912                             for vld_id_ref in nsd["connection-point"]:
 913                                 name = vld_id_ref["vld-id-ref"]
 914                                 vnm = nsi_vld.get("vim-network-name")
 915                                 if type(vnm) is not dict:
 916                                     vnm = {slice_request.get("vimAccountId"): vnm}
 917                                 if vld_id_ref["name"] == nsi_vld["nsd-connection-point-ref"]:
 918                                     if list(vnm.values())[0] is None:
 919                                         networkName = "default"
 920                                     else:
 921                                         networkName = str(list(vnm.values())[0])
 922                                     # VIMNetworkName = NetSliceName-NetworkName
 923                                     vimnetname = str(slice_request["nsiName"]) + "-" + networkName
 924                                     indata_ns_list.append({"name": name, "vim-network-name": vimnetname})
 925                     indata_ns["vld"] = indata_ns_list
 926
 927                 _id_nsr = NsrTopic.new(self, rollback, session, indata_ns, kwargs, headers, force)
 928                 nsrs_item = {"nsrId": _id_nsr}
 929                 nsrs_list.append(nsrs_item)
 930                 nsi_netslice_subnet.append(indata_ns)
 931                 nsr_ref = {"nsr-ref": _id_nsr}
 932                 nsi_descriptor["nsr-ref-list"].append(nsr_ref)
 933
 934             # Adding the nsrs list to the nsi
 935             nsi_descriptor["_admin"]["nsrs-detailed-list"] = nsrs_list
 936             nsi_descriptor["_admin"]["netslice-subnet"] = nsi_netslice_subnet
 937             # Creating the entry in the database
 938             self.db.create("nsis", nsi_descriptor)
 939             rollback.append({"topic": "nsis", "_id": nsi_id})
 940             return nsi_id
 941         except Exception as e:
 942             self.logger.exception("Exception {} at NsiTopic.new()".format(e), exc_info=True)
 943             raise EngineException("Error {}: {}".format(step, e))
 944         except ValidationError as e:
 945             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
 946
 947     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
 948         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 949
 950
 951 class NsiLcmOpTopic(BaseTopic):
 952     topic = "nsilcmops"
 953     topic_msg = "nsi"
 954     operation_schema = {  # mapping between operation and jsonschema to validate
 955         "instantiate": nsi_instantiate,
 956         "terminate": None
 957     }
 958
 959     def __init__(self, db, fs, msg):
 960         BaseTopic.__init__(self, db, fs, msg)
 961
 962     def _check_nsi_operation(self, session, nsir, operation, indata):
 963         """
 964         Check that user has enter right parameters for the operation
 965         :param session:
 966         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
 967         :param indata: descriptor with the parameters of the operation
 968         :return: None
 969         """
 970         nsds = {}
 971         nstd = nsir["network-slice-template"]
 972
 973         def check_valid_netslice_subnet_id(nstId):
 974             # TODO change to vnfR (??)
 975             for netslice_subnet in nstd["netslice-subnet"]:
 976                 if nstId == netslice_subnet["id"]:
 977                     nsd_id = netslice_subnet["nsd-ref"]
 978                     if nsd_id not in nsds:
 979                         nsds[nsd_id] = self.db.get_one("nsds", {"id": nsd_id})
 980                     return nsds[nsd_id]
 981             else:
 982                 raise EngineException("Invalid parameter nstId='{}' is not one of the "
 983                                       "nst:netslice-subnet".format(nstId))
 984         if operation == "instantiate":
 985             # check the existance of netslice-subnet items
 986             for in_nst in get_iterable(indata.get("netslice-subnet")):
 987                 check_valid_netslice_subnet_id(in_nst["id"])
 988
 989     def _create_nsilcmop(self, session, netsliceInstanceId, operation, params):
 990         now = time()
 991         _id = str(uuid4())
 992         nsilcmop = {
 993             "id": _id,
 994             "_id": _id,
 995             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
 996             "statusEnteredTime": now,
 997             "netsliceInstanceId": netsliceInstanceId,
 998             "lcmOperationType": operation,
 999             "startTime": now,
1000             "isAutomaticInvocation": False,
1001             "operationParams": params,
1002             "isCancelPending": False,
1003             "links": {
1004                 "self": "/osm/nsilcm/v1/nsi_lcm_op_occs/" + _id,
1005                 "nsInstance": "/osm/nsilcm/v1/netslice_instances/" + netsliceInstanceId,
1006             }
1007         }
1008         return nsilcmop
1009
1010     def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
1011         """
1012         Performs a new operation over a ns
1013         :param rollback: list to append created items at database in case a rollback must to be done
1014         :param session: contains the used login username and working project
1015         :param indata: descriptor with the parameters of the operation. It must contains among others
1016             nsiInstanceId: _id of the nsir to perform the operation
1017             operation: it can be: instantiate, terminate, action, TODO: update, heal
1018         :param kwargs: used to override the indata descriptor
1019         :param headers: http request headers
1020         :param force: If True avoid some dependence checks
1021         :param make_public: Make the created item public to all projects
1022         :return: id of the nslcmops
1023         """
1024         try:
1025             # Override descriptor with query string kwargs
1026             self._update_input_with_kwargs(indata, kwargs)
1027             operation = indata["lcmOperationType"]
1028             nsiInstanceId = indata["nsiInstanceId"]
1029             validate_input(indata, self.operation_schema[operation])
1030
1031             # get nsi from nsiInstanceId
1032             _filter = BaseTopic._get_project_filter(session, write=True, show_all=False)
1033             _filter["_id"] = nsiInstanceId
1034             nsir = self.db.get_one("nsis", _filter)
1035
1036             # initial checking
1037             if not nsir["_admin"].get("nsiState") or nsir["_admin"]["nsiState"] == "NOT_INSTANTIATED":
1038                 if operation == "terminate" and indata.get("autoremove"):
1039                     # NSIR must be deleted
1040                     return None    # a none in this case is used to indicate not instantiated. It can be removed
1041                 if operation != "instantiate":
1042                     raise EngineException("netslice_instance '{}' cannot be '{}' because it is not instantiated".format(
1043                         nsiInstanceId, operation), HTTPStatus.CONFLICT)
1044             else:
1045                 if operation == "instantiate" and not indata.get("force"):
1046                     raise EngineException("netslice_instance '{}' cannot be '{}' because it is already instantiated".
1047                                           format(nsiInstanceId, operation), HTTPStatus.CONFLICT)
1048
1049             # Creating all the NS_operation (nslcmop)
1050             # Get service list from db
1051             nsrs_list = nsir["_admin"]["nsrs-detailed-list"]
1052             nslcmops = []
1053             for nsr_item in nsrs_list:
1054                 service = self.db.get_one("nsrs", {"_id": nsr_item["nsrId"]})
1055                 indata_ns = {}
1056                 indata_ns = service["instantiate_params"]
1057                 indata_ns["lcmOperationType"] = operation
1058                 indata_ns["nsInstanceId"] = service["_id"]
1059                 # Including netslice_id in the ns instantiate Operation
1060                 indata_ns["netsliceInstanceId"] = nsiInstanceId
1061                 del indata_ns["key-pair-ref"]
1062                 nsi_NsLcmOpTopic = NsLcmOpTopic(self.db, self.fs, self.msg)
1063                 # Creating NS_LCM_OP with the flag slice_object=True to not trigger the service instantiation
1064                 # message via kafka bus
1065                 nslcmop = nsi_NsLcmOpTopic.new(rollback, session, indata_ns, kwargs, headers, force, slice_object=True)
1066                 nslcmops.append(nslcmop)
1067
1068             # Creates nsilcmop
1069             indata["nslcmops_ids"] = nslcmops
1070             self._check_nsi_operation(session, nsir, operation, indata)
1071             nsilcmop_desc = self._create_nsilcmop(session, nsiInstanceId, operation, indata)
1072             self.format_on_new(nsilcmop_desc, session["project_id"], make_public=make_public)
1073             _id = self.db.create("nsilcmops", nsilcmop_desc)
1074             rollback.append({"topic": "nsilcmops", "_id": _id})
1075             self.msg.write("nsi", operation, nsilcmop_desc)
1076             return _id
1077         except ValidationError as e:
1078             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
1079         # except DbException as e:
1080         #     raise EngineException("Cannot get nsi_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
1081
1082     def delete(self, session, _id, force=False, dry_run=False):
1083         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1084
1085     def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
1086         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)