osm_nbi/instance_topics.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #    http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  12 # implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 # import logging
  17 from uuid import uuid4
  18 from http import HTTPStatus
  19 from time import time
  20 from copy import copy, deepcopy
  21 from osm_nbi.validation import validate_input, ValidationError, ns_instantiate, ns_terminate, ns_action, ns_scale,\
  22     nsi_instantiate
  23 from osm_nbi.base_topic import BaseTopic, EngineException, get_iterable, deep_get
  24 # from descriptor_topics import DescriptorTopic
  25 from yaml import safe_dump
  26 from osm_common.dbbase import DbException
  27 from osm_common.msgbase import MsgException
  28 from osm_common.fsbase import FsException
  29 from re import match  # For checking that additional parameter names are valid Jinja2 identifiers
  30
  31 __author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
  32
  33
  34 class NsrTopic(BaseTopic):
  35     topic = "nsrs"
  36     topic_msg = "ns"
  37     quota_name = "ns_instances"
  38     schema_new = ns_instantiate
  39
  40     def __init__(self, db, fs, msg, auth):
  41         BaseTopic.__init__(self, db, fs, msg, auth)
  42
  43     def _check_descriptor_dependencies(self, session, descriptor):
  44         """
  45         Check that the dependent descriptors exist on a new descriptor or edition
  46         :param session: client session information
  47         :param descriptor: descriptor to be inserted or edit
  48         :return: None or raises exception
  49         """
  50         if not descriptor.get("nsdId"):
  51             return
  52         nsd_id = descriptor["nsdId"]
  53         if not self.get_item_list(session, "nsds", {"id": nsd_id}):
  54             raise EngineException("Descriptor error at nsdId='{}' references a non exist nsd".format(nsd_id),
  55                                   http_code=HTTPStatus.CONFLICT)
  56
  57     @staticmethod
  58     def format_on_new(content, project_id=None, make_public=False):
  59         BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
  60         content["_admin"]["nsState"] = "NOT_INSTANTIATED"
  61         return None
  62
  63     def check_conflict_on_del(self, session, _id, db_content):
  64         """
  65         Check that NSR is not instantiated
  66         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
  67         :param _id: nsr internal id
  68         :param db_content: The database content of the nsr
  69         :return: None or raises EngineException with the conflict
  70         """
  71         if session["force"]:
  72             return
  73         nsr = db_content
  74         if nsr["_admin"].get("nsState") == "INSTANTIATED":
  75             raise EngineException("nsr '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
  76                                   "Launch 'terminate' operation first; or force deletion".format(_id),
  77                                   http_code=HTTPStatus.CONFLICT)
  78
  79     def delete_extra(self, session, _id, db_content, not_send_msg=None):
  80         """
  81         Deletes associated nslcmops and vnfrs from database. Deletes associated filesystem.
  82          Set usageState of pdu, vnfd, nsd
  83         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
  84         :param _id: server internal id
  85         :param db_content: The database content of the descriptor
  86         :param not_send_msg: To not send message (False) or store content (list) instead
  87         :return: None if ok or raises EngineException with the problem
  88         """
  89         self.fs.file_delete(_id, ignore_non_exist=True)
  90         self.db.del_list("nslcmops", {"nsInstanceId": _id})
  91         self.db.del_list("vnfrs", {"nsr-id-ref": _id})
  92
  93         # set all used pdus as free
  94         self.db.set_list("pdus", {"_admin.usage.nsr_id": _id},
  95                          {"_admin.usageState": "NOT_IN_USE", "_admin.usage": None})
  96
  97         # Set NSD usageState
  98         nsr = db_content
  99         used_nsd_id = nsr.get("nsd-id")
 100         if used_nsd_id:
 101             # check if used by another NSR
 102             nsrs_list = self.db.get_one("nsrs", {"nsd-id": used_nsd_id},
 103                                         fail_on_empty=False, fail_on_more=False)
 104             if not nsrs_list:
 105                 self.db.set_one("nsds", {"_id": used_nsd_id}, {"_admin.usageState": "NOT_IN_USE"})
 106
 107         # Set VNFD usageState
 108         used_vnfd_id_list = nsr.get("vnfd-id")
 109         if used_vnfd_id_list:
 110             for used_vnfd_id in used_vnfd_id_list:
 111                 # check if used by another NSR
 112                 nsrs_list = self.db.get_one("nsrs", {"vnfd-id": used_vnfd_id},
 113                                             fail_on_empty=False, fail_on_more=False)
 114                 if not nsrs_list:
 115                     self.db.set_one("vnfds", {"_id": used_vnfd_id}, {"_admin.usageState": "NOT_IN_USE"})
 116
 117     @staticmethod
 118     def _format_ns_request(ns_request):
 119         formated_request = copy(ns_request)
 120         formated_request.pop("additionalParamsForNs", None)
 121         formated_request.pop("additionalParamsForVnf", None)
 122         return formated_request
 123
 124     @staticmethod
 125     def _format_additional_params(ns_request, member_vnf_index=None, vdu_id=None, kdu_name=None, descriptor=None):
 126         """
 127         Get and format user additional params for NS or VNF
 128         :param ns_request: User instantiation additional parameters
 129         :param member_vnf_index: None for extract NS params, or member_vnf_index to extract VNF params
 130         :param descriptor: If not None it check that needed parameters of descriptor are supplied
 131         :return: tuple with a formatted copy of additional params or None if not supplied, plus other parameters
 132         """
 133         additional_params = None
 134         other_params = None
 135         if not member_vnf_index:
 136             additional_params = copy(ns_request.get("additionalParamsForNs"))
 137             where_ = "additionalParamsForNs"
 138         elif ns_request.get("additionalParamsForVnf"):
 139             where_ = "additionalParamsForVnf[member-vnf-index={}]".format(member_vnf_index)
 140             item = next((x for x in ns_request["additionalParamsForVnf"] if x["member-vnf-index"] == member_vnf_index),
 141                         None)
 142             if item:
 143                 if not vdu_id and not kdu_name:
 144                     other_params = item
 145                 additional_params = copy(item.get("additionalParams")) or {}
 146                 if vdu_id and item.get("additionalParamsForVdu"):
 147                     item_vdu = next((x for x in item["additionalParamsForVdu"] if x["vdu_id"] == vdu_id), None)
 148                     other_params = item_vdu
 149                     if item_vdu and item_vdu.get("additionalParams"):
 150                         where_ += ".additionalParamsForVdu[vdu_id={}]".format(vdu_id)
 151                         additional_params = item_vdu["additionalParams"]
 152                 if kdu_name:
 153                     additional_params = {}
 154                     if item.get("additionalParamsForKdu"):
 155                         item_kdu = next((x for x in item["additionalParamsForKdu"] if x["kdu_name"] == kdu_name), None)
 156                         other_params = item_kdu
 157                         if item_kdu and item_kdu.get("additionalParams"):
 158                             where_ += ".additionalParamsForKdu[kdu_name={}]".format(kdu_name)
 159                             additional_params = item_kdu["additionalParams"]
 160
 161         if additional_params:
 162             for k, v in additional_params.items():
 163                 # BEGIN Check that additional parameter names are valid Jinja2 identifiers if target is not Kdu
 164                 if not kdu_name and not match('^[a-zA-Z_][a-zA-Z0-9_]*$', k):
 165                     raise EngineException("Invalid param name at {}:{}. Must contain only alphanumeric characters "
 166                                           "and underscores, and cannot start with a digit"
 167                                           .format(where_, k))
 168                 # END Check that additional parameter names are valid Jinja2 identifiers
 169                 if not isinstance(k, str):
 170                     raise EngineException("Invalid param at {}:{}. Only string keys are allowed".format(where_, k))
 171                 if "." in k or "$" in k:
 172                     raise EngineException("Invalid param at {}:{}. Keys must not contain dots or $".format(where_, k))
 173                 if isinstance(v, (dict, tuple, list)):
 174                     additional_params[k] = "!!yaml " + safe_dump(v)
 175
 176         if descriptor:
 177             # check that enough parameters are supplied for the initial-config-primitive
 178             # TODO: check for cloud-init
 179             if member_vnf_index:
 180                 if kdu_name:
 181                     initial_primitives = None
 182                 elif vdu_id:
 183                     vdud = next(x for x in descriptor["vdu"] if x["id"] == vdu_id)
 184                     initial_primitives = deep_get(vdud, ("vdu-configuration", "initial-config-primitive"))
 185                 else:
 186                     initial_primitives = deep_get(descriptor, ("vnf-configuration", "initial-config-primitive"))
 187             else:
 188                 initial_primitives = deep_get(descriptor, ("ns-configuration", "initial-config-primitive"))
 189
 190             for initial_primitive in get_iterable(initial_primitives):
 191                 for param in get_iterable(initial_primitive.get("parameter")):
 192                     if param["value"].startswith("<") and param["value"].endswith(">"):
 193                         if param["value"] in ("<rw_mgmt_ip>", "<VDU_SCALE_INFO>", "<ns_config_info>"):
 194                             continue
 195                         if not additional_params or param["value"][1:-1] not in additional_params:
 196                             raise EngineException("Parameter '{}' needed for vnfd[id={}]:vnf-configuration:"
 197                                                   "initial-config-primitive[name={}] not supplied".
 198                                                   format(param["value"], descriptor["id"],
 199                                                          initial_primitive["name"]))
 200
 201         return additional_params or None, other_params or None
 202
 203     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
 204         """
 205         Creates a new nsr into database. It also creates needed vnfrs
 206         :param rollback: list to append the created items at database in case a rollback must be done
 207         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 208         :param indata: params to be used for the nsr
 209         :param kwargs: used to override the indata descriptor
 210         :param headers: http request headers
 211         :return: the _id of nsr descriptor created at database. Or an exception of type
 212             EngineException, ValidationError, DbException, FsException, MsgException.
 213             Note: Exceptions are not captured on purpose. They should be captured at called
 214         """
 215
 216         try:
 217             step = "checking quotas"
 218             self.check_quota(session)
 219
 220             step = "validating input parameters"
 221             ns_request = self._remove_envelop(indata)
 222             # Override descriptor with query string kwargs
 223             self._update_input_with_kwargs(ns_request, kwargs)
 224             self._validate_input_new(ns_request, session["force"])
 225
 226             # look for nsd
 227             step = "getting nsd id='{}' from database".format(ns_request.get("nsdId"))
 228             _filter = self._get_project_filter(session)
 229             _filter["_id"] = ns_request["nsdId"]
 230             nsd = self.db.get_one("nsds", _filter)
 231             del _filter["_id"]
 232
 233             # check NSD is not disabled
 234             step = "checking nsdOperationalState"
 235             if nsd["_admin"]["operationalState"] == "DISABLED":
 236                 raise EngineException("nsd with id '{}' is DISABLED, and thus cannot be used to create "
 237                                       "a network service".format(ns_request["nsdId"]), http_code=HTTPStatus.CONFLICT)
 238
 239             nsr_id = str(uuid4())
 240
 241             now = time()
 242             step = "filling nsr from input data"
 243             additional_params, _ = self._format_additional_params(ns_request, descriptor=nsd)
 244
 245             # use for k8s-namespace from ns_request or additionalParamsForNs. By default, the project_id
 246             ns_k8s_namespace = session["project_id"][0] if session["project_id"] else None
 247             if ns_request and ns_request.get("k8s-namespace"):
 248                 ns_k8s_namespace = ns_request["k8s-namespace"]
 249             if additional_params and additional_params.get("k8s-namespace"):
 250                 ns_k8s_namespace = additional_params["k8s-namespace"]
 251
 252             nsr_descriptor = {
 253                 "name": ns_request["nsName"],
 254                 "name-ref": ns_request["nsName"],
 255                 "short-name": ns_request["nsName"],
 256                 "admin-status": "ENABLED",
 257                 "nsState": "NOT_INSTANTIATED",
 258                 "currentOperation": "IDLE",
 259                 "currentOperationID": None,
 260                 "errorDescription": None,
 261                 "errorDetail": None,
 262                 "deploymentStatus": None,
 263                 "configurationStatus": None,
 264                 "vcaStatus": None,
 265                 "nsd": {k: v for k, v in nsd.items() if k in ("vld", "_id", "id", "constituent-vnfd", "name",
 266                                                               "ns-configuration")},
 267                 "datacenter": ns_request["vimAccountId"],
 268                 "resource-orchestrator": "osmopenmano",
 269                 "description": ns_request.get("nsDescription", ""),
 270                 "constituent-vnfr-ref": [],
 271
 272                 "operational-status": "init",    # typedef ns-operational-
 273                 "config-status": "init",         # typedef config-states
 274                 "detailed-status": "scheduled",
 275
 276                 "orchestration-progress": {},
 277                 # {"networks": {"active": 0, "total": 0}, "vms": {"active": 0, "total": 0}},
 278
 279                 "create-time": now,
 280                 "nsd-name-ref": nsd["name"],
 281                 "operational-events": [],   # "id", "timestamp", "description", "event",
 282                 "nsd-ref": nsd["id"],
 283                 "nsd-id": nsd["_id"],
 284                 "vnfd-id": [],
 285                 "instantiate_params": self._format_ns_request(ns_request),
 286                 "additionalParamsForNs": additional_params,
 287                 "ns-instance-config-ref": nsr_id,
 288                 "id": nsr_id,
 289                 "_id": nsr_id,
 290                 # "input-parameter": xpath, value,
 291                 "ssh-authorized-key": ns_request.get("ssh_keys"),  # TODO remove
 292             }
 293             ns_request["nsr_id"] = nsr_id
 294             if ns_request and ns_request.get("config-units"):
 295                 nsr_descriptor["config-units"] = ns_request["config-units"]
 296
 297             # Create vld
 298             if nsd.get("vld"):
 299                 nsr_descriptor["vld"] = nsd["vld"]
 300
 301             # Create VNFR
 302             needed_vnfds = {}
 303             for member_vnf in nsd.get("constituent-vnfd", ()):
 304                 vnfd_id = member_vnf["vnfd-id-ref"]
 305                 step = "getting vnfd id='{}' constituent-vnfd='{}' from database".format(
 306                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 307                 if vnfd_id not in needed_vnfds:
 308                     # Obtain vnfd
 309                     _filter["id"] = vnfd_id
 310                     vnfd = self.db.get_one("vnfds", _filter, fail_on_empty=True, fail_on_more=True)
 311                     del _filter["id"]
 312                     vnfd.pop("_admin")
 313                     needed_vnfds[vnfd_id] = vnfd
 314                     nsr_descriptor["vnfd-id"].append(vnfd["_id"])
 315                 else:
 316                     vnfd = needed_vnfds[vnfd_id]
 317                 step = "filling vnfr  vnfd-id='{}' constituent-vnfd='{}'".format(
 318                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 319                 vnfr_id = str(uuid4())
 320                 additional_params, vnf_params = self._format_additional_params(ns_request,
 321                                                                                member_vnf["member-vnf-index"],
 322                                                                                descriptor=vnfd)
 323                 vnfr_descriptor = {
 324                     "id": vnfr_id,
 325                     "_id": vnfr_id,
 326                     "nsr-id-ref": nsr_id,
 327                     "member-vnf-index-ref": member_vnf["member-vnf-index"],
 328                     "additionalParamsForVnf": additional_params,
 329                     "created-time": now,
 330                     # "vnfd": vnfd,        # at OSM model.but removed to avoid data duplication TODO: revise
 331                     "vnfd-ref": vnfd_id,
 332                     "vnfd-id": vnfd["_id"],    # not at OSM model, but useful
 333                     "vim-account-id": None,
 334                     "vdur": [],
 335                     "connection-point": [],
 336                     "ip-address": None,  # mgmt-interface filled by LCM
 337                 }
 338                 vnf_k8s_namespace = ns_k8s_namespace
 339                 if vnf_params:
 340                     if vnf_params.get("k8s-namespace"):
 341                         vnf_k8s_namespace = vnf_params["k8s-namespace"]
 342                     if vnf_params.get("config-units"):
 343                         vnfr_descriptor["config-units"] = vnf_params["config-units"]
 344
 345                 # Create vld
 346                 if vnfd.get("internal-vld"):
 347                     vnfr_descriptor["vld"] = []
 348                     for vnfd_vld in vnfd.get("internal-vld"):
 349                         vnfr_descriptor["vld"].append(
 350                             {key: vnfd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in
 351                              vnfd_vld})
 352
 353                 vnfd_mgmt_cp = vnfd["mgmt-interface"].get("cp")
 354                 for cp in vnfd.get("connection-point", ()):
 355                     vnf_cp = {
 356                         "name": cp["name"],
 357                         "connection-point-id": cp.get("id"),
 358                         "id": cp.get("id"),
 359                         # "ip-address", "mac-address" # filled by LCM
 360                         # vim-id  # TODO it would be nice having a vim port id
 361                     }
 362                     vnfr_descriptor["connection-point"].append(vnf_cp)
 363
 364                 # Create k8s-cluster information
 365                 if vnfd.get("k8s-cluster"):
 366                     vnfr_descriptor["k8s-cluster"] = vnfd["k8s-cluster"]
 367                     for net in get_iterable(vnfr_descriptor["k8s-cluster"].get("nets")):
 368                         if net.get("external-connection-point-ref"):
 369                             for nsd_vld in get_iterable(nsd.get("vld")):
 370                                 for nsd_vld_cp in get_iterable(nsd_vld.get("vnfd-connection-point-ref")):
 371                                     if nsd_vld_cp.get("vnfd-connection-point-ref") == \
 372                                             net["external-connection-point-ref"] and \
 373                                             nsd_vld_cp.get("member-vnf-index-ref") == member_vnf["member-vnf-index"]:
 374                                         net["ns-vld-id"] = nsd_vld["id"]
 375                                         break
 376                                 else:
 377                                     continue
 378                                 break
 379                         elif net.get("internal-connection-point-ref"):
 380                             for vnfd_ivld in get_iterable(vnfd.get("internal-vld")):
 381                                 for vnfd_ivld_icp in get_iterable(vnfd_ivld.get("internal-connection-point")):
 382                                     if vnfd_ivld_icp.get("id-ref") == net["internal-connection-point-ref"]:
 383                                         net["vnf-vld-id"] = vnfd_ivld["id"]
 384                                         break
 385                                 else:
 386                                     continue
 387                                 break
 388                 # update kdus
 389                 for kdu in get_iterable(vnfd.get("kdu")):
 390                     additional_params, kdu_params = self._format_additional_params(ns_request,
 391                                                                                    member_vnf["member-vnf-index"],
 392                                                                                    kdu_name=kdu["name"],
 393                                                                                    descriptor=vnfd)
 394                     kdu_k8s_namespace = vnf_k8s_namespace
 395                     kdu_model = kdu_params.get("kdu_model") if kdu_params else None
 396                     if kdu_params and kdu_params.get("k8s-namespace"):
 397                         kdu_k8s_namespace = kdu_params["k8s-namespace"]
 398
 399                     kdur = {
 400                         "additionalParams": additional_params,
 401                         "k8s-namespace": kdu_k8s_namespace,
 402                         "kdu-name": kdu["name"],
 403                         # TODO      "name": ""     Name of the VDU in the VIM
 404                         "ip-address": None,  # mgmt-interface filled by LCM
 405                         "k8s-cluster": {},
 406                     }
 407                     if kdu_params and kdu_params.get("config-units"):
 408                         kdur["config-units"] = kdu_params["config-units"]
 409                     for k8s_type in ("helm-chart", "juju-bundle"):
 410                         if kdu.get(k8s_type):
 411                             kdur[k8s_type] = kdu_model or kdu[k8s_type]
 412                     if not vnfr_descriptor.get("kdur"):
 413                         vnfr_descriptor["kdur"] = []
 414                     vnfr_descriptor["kdur"].append(kdur)
 415
 416                 for vdu in vnfd.get("vdu", ()):
 417                     additional_params, vdu_params = self._format_additional_params(
 418                         ns_request, member_vnf["member-vnf-index"], vdu_id=vdu["id"], descriptor=vnfd)
 419                     vdur = {
 420                         "vdu-id-ref": vdu["id"],
 421                         # TODO      "name": ""     Name of the VDU in the VIM
 422                         "ip-address": None,  # mgmt-interface filled by LCM
 423                         # "vim-id", "flavor-id", "image-id", "management-ip" # filled by LCM
 424                         "internal-connection-point": [],
 425                         "interfaces": [],
 426                         "additionalParams": additional_params
 427                     }
 428                     if vdu_params and vdu_params.get("config-units"):
 429                         vdur["config-units"] = vdu_params["config-units"]
 430                     if deep_get(vdu, ("supplemental-boot-data", "boot-data-drive")):
 431                         vdur["boot-data-drive"] = vdu["supplemental-boot-data"]["boot-data-drive"]
 432                     if vdu.get("pdu-type"):
 433                         vdur["pdu-type"] = vdu["pdu-type"]
 434                         vdur["name"] = vdu["pdu-type"]
 435                     # TODO volumes: name, volume-id
 436                     for icp in vdu.get("internal-connection-point", ()):
 437                         vdu_icp = {
 438                             "id": icp["id"],
 439                             "connection-point-id": icp["id"],
 440                             "name": icp.get("name"),
 441                             # "ip-address", "mac-address" # filled by LCM
 442                             # vim-id  # TODO it would be nice having a vim port id
 443                         }
 444                         vdur["internal-connection-point"].append(vdu_icp)
 445                     for iface in vdu.get("interface", ()):
 446                         vdu_iface = {
 447                             "name": iface.get("name"),
 448                             # "ip-address", "mac-address" # filled by LCM
 449                             # vim-id  # TODO it would be nice having a vim port id
 450                         }
 451                         if vnfd_mgmt_cp and iface.get("external-connection-point-ref") == vnfd_mgmt_cp:
 452                             vdu_iface["mgmt-vnf"] = True
 453                         if iface.get("mgmt-interface"):
 454                             vdu_iface["mgmt-interface"] = True  # TODO change to mgmt-vdu
 455
 456                         # look for network where this interface is connected
 457                         if iface.get("external-connection-point-ref"):
 458                             for nsd_vld in get_iterable(nsd.get("vld")):
 459                                 for nsd_vld_cp in get_iterable(nsd_vld.get("vnfd-connection-point-ref")):
 460                                     if nsd_vld_cp.get("vnfd-connection-point-ref") == \
 461                                             iface["external-connection-point-ref"] and \
 462                                             nsd_vld_cp.get("member-vnf-index-ref") == member_vnf["member-vnf-index"]:
 463                                         vdu_iface["ns-vld-id"] = nsd_vld["id"]
 464                                         break
 465                                 else:
 466                                     continue
 467                                 break
 468                         elif iface.get("internal-connection-point-ref"):
 469                             for vnfd_ivld in get_iterable(vnfd.get("internal-vld")):
 470                                 for vnfd_ivld_icp in get_iterable(vnfd_ivld.get("internal-connection-point")):
 471                                     if vnfd_ivld_icp.get("id-ref") == iface["internal-connection-point-ref"]:
 472                                         vdu_iface["vnf-vld-id"] = vnfd_ivld["id"]
 473                                         break
 474                                 else:
 475                                     continue
 476                                 break
 477
 478                         vdur["interfaces"].append(vdu_iface)
 479                     count = vdu.get("count", 1)
 480                     if count is None:
 481                         count = 1
 482                     count = int(count)    # TODO remove when descriptor serialized with payngbind
 483                     for index in range(0, count):
 484                         if index:
 485                             vdur = deepcopy(vdur)
 486                         vdur["_id"] = str(uuid4())
 487                         vdur["count-index"] = index
 488                         vnfr_descriptor["vdur"].append(vdur)
 489
 490                 step = "creating vnfr vnfd-id='{}' constituent-vnfd='{}' at database".format(
 491                     member_vnf["vnfd-id-ref"], member_vnf["member-vnf-index"])
 492
 493                 # add at database
 494                 self.format_on_new(vnfr_descriptor, session["project_id"], make_public=session["public"])
 495                 self.db.create("vnfrs", vnfr_descriptor)
 496                 rollback.append({"topic": "vnfrs", "_id": vnfr_id})
 497                 nsr_descriptor["constituent-vnfr-ref"].append(vnfr_id)
 498
 499             step = "creating nsr at database"
 500             self.format_on_new(nsr_descriptor, session["project_id"], make_public=session["public"])
 501             self.db.create("nsrs", nsr_descriptor)
 502             rollback.append({"topic": "nsrs", "_id": nsr_id})
 503
 504             step = "creating nsr temporal folder"
 505             self.fs.mkdir(nsr_id)
 506
 507             return nsr_id, None
 508         except (ValidationError, EngineException, DbException, MsgException, FsException) as e:
 509             raise type(e)("{} while '{}'".format(e, step), http_code=e.http_code)
 510
 511     def edit(self, session, _id, indata=None, kwargs=None, content=None):
 512         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 513
 514
 515 class VnfrTopic(BaseTopic):
 516     topic = "vnfrs"
 517     topic_msg = None
 518
 519     def __init__(self, db, fs, msg, auth):
 520         BaseTopic.__init__(self, db, fs, msg, auth)
 521
 522     def delete(self, session, _id, dry_run=False, not_send_msg=None):
 523         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 524
 525     def edit(self, session, _id, indata=None, kwargs=None, content=None):
 526         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 527
 528     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
 529         # Not used because vnfrs are created and deleted by NsrTopic class directly
 530         raise EngineException("Method new called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
 531
 532
 533 class NsLcmOpTopic(BaseTopic):
 534     topic = "nslcmops"
 535     topic_msg = "ns"
 536     operation_schema = {    # mapping between operation and jsonschema to validate
 537         "instantiate": ns_instantiate,
 538         "action": ns_action,
 539         "scale": ns_scale,
 540         "terminate": ns_terminate,
 541     }
 542
 543     def __init__(self, db, fs, msg, auth):
 544         BaseTopic.__init__(self, db, fs, msg, auth)
 545
 546     def _check_ns_operation(self, session, nsr, operation, indata):
 547         """
 548         Check that user has enter right parameters for the operation
 549         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 550         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
 551         :param indata: descriptor with the parameters of the operation
 552         :return: None
 553         """
 554         vnf_member_index_to_vnfd = {}  # map between vnf_member_index to vnf descriptor.
 555         vim_accounts = []
 556         wim_accounts = []
 557         nsd = nsr["nsd"]
 558
 559         def check_valid_vnf_member_index(member_vnf_index):
 560             # Obtain vnf descriptor. The vnfr is used to get the vnfd._id used for this member_vnf_index
 561             if vnf_member_index_to_vnfd.get(member_vnf_index):
 562                 return vnf_member_index_to_vnfd[member_vnf_index]
 563             vnfr = self.db.get_one("vnfrs",
 564                                    {"nsr-id-ref": nsr["_id"], "member-vnf-index-ref": member_vnf_index},
 565                                    fail_on_empty=False)
 566             if not vnfr:
 567                 raise EngineException("Invalid parameter member_vnf_index='{}' is not one of the "
 568                                       "nsd:constituent-vnfd".format(member_vnf_index))
 569             vnfd = self.db.get_one("vnfds", {"_id": vnfr["vnfd-id"]}, fail_on_empty=False)
 570             if not vnfd:
 571                 raise EngineException("vnfd id={} has been deleted!. Operation cannot be performed".
 572                                       format(vnfr["vnfd-id"]))
 573             vnf_member_index_to_vnfd[member_vnf_index] = vnfd  # add to cache, avoiding a later look for
 574             return vnfd
 575
 576         def check_valid_vdu(vnfd, vdu_id):
 577             for vdud in get_iterable(vnfd.get("vdu")):
 578                 if vdud["id"] == vdu_id:
 579                     return vdud
 580             else:
 581                 raise EngineException("Invalid parameter vdu_id='{}' not present at vnfd:vdu:id".format(vdu_id))
 582
 583         def check_valid_kdu(vnfd, kdu_name):
 584             for kdud in get_iterable(vnfd.get("kdu")):
 585                 if kdud["name"] == kdu_name:
 586                     return kdud
 587             else:
 588                 raise EngineException("Invalid parameter kdu_name='{}' not present at vnfd:kdu:name".format(kdu_name))
 589
 590         def _check_vnf_instantiation_params(in_vnfd, vnfd):
 591
 592             for in_vdu in get_iterable(in_vnfd.get("vdu")):
 593                 for vdu in get_iterable(vnfd.get("vdu")):
 594                     if in_vdu["id"] == vdu["id"]:
 595                         for volume in get_iterable(in_vdu.get("volume")):
 596                             for volumed in get_iterable(vdu.get("volumes")):
 597                                 if volumed["name"] == volume["name"]:
 598                                     break
 599                             else:
 600                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 601                                                       "volume:name='{}' is not present at vnfd:vdu:volumes list".
 602                                                       format(in_vnf["member-vnf-index"], in_vdu["id"],
 603                                                              volume["name"]))
 604                         for in_iface in get_iterable(in_vdu["interface"]):
 605                             for iface in get_iterable(vdu.get("interface")):
 606                                 if in_iface["name"] == iface["name"]:
 607                                     break
 608                             else:
 609                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
 610                                                       "interface[name='{}'] is not present at vnfd:vdu:interface"
 611                                                       .format(in_vnf["member-vnf-index"], in_vdu["id"],
 612                                                               in_iface["name"]))
 613                         break
 614                 else:
 615                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}'] is is not present "
 616                                           "at vnfd:vdu".format(in_vnf["member-vnf-index"], in_vdu["id"]))
 617
 618             for in_ivld in get_iterable(in_vnfd.get("internal-vld")):
 619                 for ivld in get_iterable(vnfd.get("internal-vld")):
 620                     if in_ivld["name"] in (ivld["id"], ivld.get("name")):
 621                         for in_icp in get_iterable(in_ivld.get("internal-connection-point")):
 622                             for icp in ivld["internal-connection-point"]:
 623                                 if in_icp["id-ref"] == icp["id-ref"]:
 624                                     break
 625                             else:
 626                                 raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld[name"
 627                                                       "='{}']:internal-connection-point[id-ref:'{}'] is not present at "
 628                                                       "vnfd:internal-vld:name/id:internal-connection-point"
 629                                                       .format(in_vnf["member-vnf-index"], in_ivld["name"],
 630                                                               in_icp["id-ref"]))
 631                         break
 632                 else:
 633                     raise EngineException("Invalid parameter vnf[member-vnf-index='{}']:internal-vld:name='{}'"
 634                                           " is not present at vnfd '{}'".format(in_vnf["member-vnf-index"],
 635                                                                                 in_ivld["name"], vnfd["id"]))
 636
 637         def check_valid_vim_account(vim_account):
 638             if vim_account in vim_accounts:
 639                 return
 640             try:
 641                 db_filter = self._get_project_filter(session)
 642                 db_filter["_id"] = vim_account
 643                 self.db.get_one("vim_accounts", db_filter)
 644             except Exception:
 645                 raise EngineException("Invalid vimAccountId='{}' not present for the project".format(vim_account))
 646             vim_accounts.append(vim_account)
 647
 648         def check_valid_wim_account(wim_account):
 649             if not isinstance(wim_account, str):
 650                 return
 651             elif wim_account in wim_accounts:
 652                 return
 653             try:
 654                 db_filter = self._get_project_filter(session, write=False, show_all=True)
 655                 db_filter["_id"] = wim_account
 656                 self.db.get_one("wim_accounts", db_filter)
 657             except Exception:
 658                 raise EngineException("Invalid wimAccountId='{}' not present for the project".format(wim_account))
 659             wim_accounts.append(wim_account)
 660
 661         if operation == "action":
 662             # check vnf_member_index
 663             if indata.get("vnf_member_index"):
 664                 indata["member_vnf_index"] = indata.pop("vnf_member_index")    # for backward compatibility
 665             if indata.get("member_vnf_index"):
 666                 vnfd = check_valid_vnf_member_index(indata["member_vnf_index"])
 667                 if indata.get("vdu_id"):
 668                     vdud = check_valid_vdu(vnfd, indata["vdu_id"])
 669                     descriptor_configuration = vdud.get("vdu-configuration", {}).get("config-primitive")
 670                 elif indata.get("kdu_name"):
 671                     kdud = check_valid_kdu(vnfd, indata["kdu_name"])
 672                     descriptor_configuration = kdud.get("kdu-configuration", {}).get("config-primitive")
 673                 else:
 674                     descriptor_configuration = vnfd.get("vnf-configuration", {}).get("config-primitive")
 675             else:  # use a NSD
 676                 descriptor_configuration = nsd.get("ns-configuration", {}).get("config-primitive")
 677
 678             # For k8s allows default primitives without validating the parameters
 679             if indata.get("kdu_name") and indata["primitive"] in ("upgrade", "rollback", "status", "inspect", "readme"):
 680                 # TODO should be checked that rollback only can contains revsision_numbe????
 681                 if not indata.get("member_vnf_index"):
 682                     raise EngineException("Missing action parameter 'member_vnf_index' for default KDU primitive '{}'"
 683                                           .format(indata["primitive"]))
 684                 return
 685             # if not, check primitive
 686             for config_primitive in get_iterable(descriptor_configuration):
 687                 if indata["primitive"] == config_primitive["name"]:
 688                     # check needed primitive_params are provided
 689                     if indata.get("primitive_params"):
 690                         in_primitive_params_copy = copy(indata["primitive_params"])
 691                     else:
 692                         in_primitive_params_copy = {}
 693                     for paramd in get_iterable(config_primitive.get("parameter")):
 694                         if paramd["name"] in in_primitive_params_copy:
 695                             del in_primitive_params_copy[paramd["name"]]
 696                         elif not paramd.get("default-value"):
 697                             raise EngineException("Needed parameter {} not provided for primitive '{}'".format(
 698                                 paramd["name"], indata["primitive"]))
 699                     # check no extra primitive params are provided
 700                     if in_primitive_params_copy:
 701                         raise EngineException("parameter/s '{}' not present at vnfd /nsd for primitive '{}'".format(
 702                             list(in_primitive_params_copy.keys()), indata["primitive"]))
 703                     break
 704             else:
 705                 raise EngineException("Invalid primitive '{}' is not present at vnfd/nsd".format(indata["primitive"]))
 706         if operation == "scale":
 707             vnfd = check_valid_vnf_member_index(indata["scaleVnfData"]["scaleByStepData"]["member-vnf-index"])
 708             for scaling_group in get_iterable(vnfd.get("scaling-group-descriptor")):
 709                 if indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"] == scaling_group["name"]:
 710                     break
 711             else:
 712                 raise EngineException("Invalid scaleVnfData:scaleByStepData:scaling-group-descriptor '{}' is not "
 713                                       "present at vnfd:scaling-group-descriptor".format(
 714                                           indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"]))
 715         if operation == "instantiate":
 716             # check vim_account
 717             check_valid_vim_account(indata["vimAccountId"])
 718             check_valid_wim_account(indata.get("wimAccountId"))
 719             for in_vnf in get_iterable(indata.get("vnf")):
 720                 vnfd = check_valid_vnf_member_index(in_vnf["member-vnf-index"])
 721                 _check_vnf_instantiation_params(in_vnf, vnfd)
 722                 if in_vnf.get("vimAccountId"):
 723                     check_valid_vim_account(in_vnf["vimAccountId"])
 724
 725             for in_vld in get_iterable(indata.get("vld")):
 726                 check_valid_wim_account(in_vld.get("wimAccountId"))
 727                 for vldd in get_iterable(nsd.get("vld")):
 728                     if in_vld["name"] == vldd["name"] or in_vld["name"] == vldd["id"]:
 729                         break
 730                 else:
 731                     raise EngineException("Invalid parameter vld:name='{}' is not present at nsd:vld".format(
 732                         in_vld["name"]))
 733
 734     def _look_for_pdu(self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback):
 735         """
 736         Look for a free PDU in the catalog matching vdur type and interfaces. Fills vnfr.vdur with the interface
 737         (ip_address, ...) information.
 738         Modifies PDU _admin.usageState to 'IN_USE'
 739         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 740         :param rollback: list with the database modifications to rollback if needed
 741         :param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
 742         :param vim_account: vim_account where this vnfr should be deployed
 743         :param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
 744         :param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
 745                                      of the changed vnfr is needed
 746
 747         :return: List of PDU interfaces that are connected to an existing VIM network. Each item contains:
 748                  "vim-network-name": used at VIM
 749                   "name": interface name
 750                   "vnf-vld-id": internal VNFD vld where this interface is connected, or
 751                   "ns-vld-id": NSD vld where this interface is connected.
 752                   NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
 753         """
 754
 755         ifaces_forcing_vim_network = []
 756         for vdur_index, vdur in enumerate(get_iterable(vnfr.get("vdur"))):
 757             if not vdur.get("pdu-type"):
 758                 continue
 759             pdu_type = vdur.get("pdu-type")
 760             pdu_filter = self._get_project_filter(session)
 761             pdu_filter["vim_accounts"] = vim_account
 762             pdu_filter["type"] = pdu_type
 763             pdu_filter["_admin.operationalState"] = "ENABLED"
 764             pdu_filter["_admin.usageState"] = "NOT_IN_USE"
 765             # TODO feature 1417: "shared": True,
 766
 767             available_pdus = self.db.get_list("pdus", pdu_filter)
 768             for pdu in available_pdus:
 769                 # step 1 check if this pdu contains needed interfaces:
 770                 match_interfaces = True
 771                 for vdur_interface in vdur["interfaces"]:
 772                     for pdu_interface in pdu["interfaces"]:
 773                         if pdu_interface["name"] == vdur_interface["name"]:
 774                             # TODO feature 1417: match per mgmt type
 775                             break
 776                     else:  # no interface found for name
 777                         match_interfaces = False
 778                         break
 779                 if match_interfaces:
 780                     break
 781             else:
 782                 raise EngineException(
 783                     "No PDU of type={} at vim_account={} found for member_vnf_index={}, vdu={} matching interface "
 784                     "names".format(pdu_type, vim_account, vnfr["member-vnf-index-ref"], vdur["vdu-id-ref"]))
 785
 786             # step 2. Update pdu
 787             rollback_pdu = {
 788                 "_admin.usageState": pdu["_admin"]["usageState"],
 789                 "_admin.usage.vnfr_id": None,
 790                 "_admin.usage.nsr_id": None,
 791                 "_admin.usage.vdur": None,
 792             }
 793             self.db.set_one("pdus", {"_id": pdu["_id"]},
 794                             {"_admin.usageState": "IN_USE",
 795                              "_admin.usage": {"vnfr_id": vnfr["_id"],
 796                                               "nsr_id": vnfr["nsr-id-ref"],
 797                                               "vdur": vdur["vdu-id-ref"]}
 798                              })
 799             rollback.append({"topic": "pdus", "_id": pdu["_id"], "operation": "set", "content": rollback_pdu})
 800
 801             # step 3. Fill vnfr info by filling vdur
 802             vdu_text = "vdur.{}".format(vdur_index)
 803             vnfr_update_rollback[vdu_text + ".pdu-id"] = None
 804             vnfr_update[vdu_text + ".pdu-id"] = pdu["_id"]
 805             for iface_index, vdur_interface in enumerate(vdur["interfaces"]):
 806                 for pdu_interface in pdu["interfaces"]:
 807                     if pdu_interface["name"] == vdur_interface["name"]:
 808                         iface_text = vdu_text + ".interfaces.{}".format(iface_index)
 809                         for k, v in pdu_interface.items():
 810                             if k in ("ip-address", "mac-address"):  # TODO: switch-xxxxx must be inserted
 811                                 vnfr_update[iface_text + ".{}".format(k)] = v
 812                                 vnfr_update_rollback[iface_text + ".{}".format(k)] = vdur_interface.get(v)
 813                         if pdu_interface.get("ip-address"):
 814                             if vdur_interface.get("mgmt-interface") or vdur_interface.get("mgmt-vnf"):
 815                                 vnfr_update_rollback[vdu_text + ".ip-address"] = vdur.get("ip-address")
 816                                 vnfr_update[vdu_text + ".ip-address"] = pdu_interface["ip-address"]
 817                             if vdur_interface.get("mgmt-vnf"):
 818                                 vnfr_update_rollback["ip-address"] = vnfr.get("ip-address")
 819                                 vnfr_update["ip-address"] = pdu_interface["ip-address"]
 820                                 vnfr_update[vdu_text + ".ip-address"] = pdu_interface["ip-address"]
 821                         if pdu_interface.get("vim-network-name") or pdu_interface.get("vim-network-id"):
 822                             ifaces_forcing_vim_network.append({
 823                                 "name": vdur_interface.get("vnf-vld-id") or vdur_interface.get("ns-vld-id"),
 824                                 "vnf-vld-id": vdur_interface.get("vnf-vld-id"),
 825                                 "ns-vld-id": vdur_interface.get("ns-vld-id")})
 826                             if pdu_interface.get("vim-network-id"):
 827                                 ifaces_forcing_vim_network[-1]["vim-network-id"] = pdu_interface["vim-network-id"]
 828                             if pdu_interface.get("vim-network-name"):
 829                                 ifaces_forcing_vim_network[-1]["vim-network-name"] = pdu_interface["vim-network-name"]
 830                         break
 831
 832         return ifaces_forcing_vim_network
 833
 834     def _look_for_k8scluster(self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback):
 835         """
 836         Look for an available k8scluster for all the kuds in the vnfd matching version and cni requirements.
 837         Fills vnfr.kdur with the selected k8scluster
 838
 839         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
 840         :param rollback: list with the database modifications to rollback if needed
 841         :param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
 842         :param vim_account: vim_account where this vnfr should be deployed
 843         :param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
 844         :param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
 845                                      of the changed vnfr is needed
 846
 847         :return: List of KDU interfaces that are connected to an existing VIM network. Each item contains:
 848                  "vim-network-name": used at VIM
 849                   "name": interface name
 850                   "vnf-vld-id": internal VNFD vld where this interface is connected, or
 851                   "ns-vld-id": NSD vld where this interface is connected.
 852                   NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
 853         """
 854
 855         ifaces_forcing_vim_network = []
 856         if not vnfr.get("kdur"):
 857             return ifaces_forcing_vim_network
 858
 859         kdu_filter = self._get_project_filter(session)
 860         kdu_filter["vim_account"] = vim_account
 861         # TODO kdu_filter["_admin.operationalState"] = "ENABLED"
 862         available_k8sclusters = self.db.get_list("k8sclusters", kdu_filter)
 863
 864         k8s_requirements = {}  # just for logging
 865         for k8scluster in available_k8sclusters:
 866             if not vnfr.get("k8s-cluster"):
 867                 break
 868             # restrict by cni
 869             if vnfr["k8s-cluster"].get("cni"):
 870                 k8s_requirements["cni"] = vnfr["k8s-cluster"]["cni"]
 871                 if not set(vnfr["k8s-cluster"]["cni"]).intersection(k8scluster.get("cni", ())):
 872                     continue
 873             # restrict by version
 874             if vnfr["k8s-cluster"].get("version"):
 875                 k8s_requirements["version"] = vnfr["k8s-cluster"]["version"]
 876                 if k8scluster.get("k8s_version") not in vnfr["k8s-cluster"]["version"]:
 877                     continue
 878             # restrict by number of networks
 879             if vnfr["k8s-cluster"].get("nets"):
 880                 k8s_requirements["networks"] = len(vnfr["k8s-cluster"]["nets"])
 881                 if not k8scluster.get("nets") or len(k8scluster["nets"]) < len(vnfr["k8s-cluster"]["nets"]):
 882                     continue
 883             break
 884         else:
 885             raise EngineException("No k8scluster with requirements='{}' at vim_account={} found for member_vnf_index={}"
 886                                   .format(k8s_requirements, vim_account, vnfr["member-vnf-index-ref"]))
 887
 888         for kdur_index, kdur in enumerate(get_iterable(vnfr.get("kdur"))):
 889             # step 3. Fill vnfr info by filling kdur
 890             kdu_text = "kdur.{}.".format(kdur_index)
 891             vnfr_update_rollback[kdu_text + "k8s-cluster.id"] = None
 892             vnfr_update[kdu_text + "k8s-cluster.id"] = k8scluster["_id"]
 893
 894         # step 4. Check VIM networks that forces the selected k8s_cluster
 895         if vnfr.get("k8s-cluster") and vnfr["k8s-cluster"].get("nets"):
 896             k8scluster_net_list = list(k8scluster.get("nets").keys())
 897             for net_index, kdur_net in enumerate(vnfr["k8s-cluster"]["nets"]):
 898                 # get a network from k8s_cluster nets. If name matches use this, if not use other
 899                 if kdur_net["id"] in k8scluster_net_list:  # name matches
 900                     vim_net = k8scluster["nets"][kdur_net["id"]]
 901                     k8scluster_net_list.remove(kdur_net["id"])
 902                 else:
 903                     vim_net = k8scluster["nets"][k8scluster_net_list[0]]
 904                     k8scluster_net_list.pop(0)
 905                 vnfr_update_rollback["k8s-cluster.nets.{}.vim_net".format(net_index)] = None
 906                 vnfr_update["k8s-cluster.nets.{}.vim_net".format(net_index)] = vim_net
 907                 if vim_net and (kdur_net.get("vnf-vld-id") or kdur_net.get("ns-vld-id")):
 908                     ifaces_forcing_vim_network.append({
 909                         "name": kdur_net.get("vnf-vld-id") or kdur_net.get("ns-vld-id"),
 910                         "vnf-vld-id": kdur_net.get("vnf-vld-id"),
 911                         "ns-vld-id": kdur_net.get("ns-vld-id"),
 912                         "vim-network-name": vim_net,   # TODO can it be vim-network-id ???
 913                     })
 914             # TODO check that this forcing is not incompatible with other forcing
 915         return ifaces_forcing_vim_network
 916
 917     def _update_vnfrs(self, session, rollback, nsr, indata):
 918         # get vnfr
 919         nsr_id = nsr["_id"]
 920         vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
 921
 922         for vnfr in vnfrs:
 923             vnfr_update = {}
 924             vnfr_update_rollback = {}
 925             member_vnf_index = vnfr["member-vnf-index-ref"]
 926             # update vim-account-id
 927
 928             vim_account = indata["vimAccountId"]
 929             # check instantiate parameters
 930             for vnf_inst_params in get_iterable(indata.get("vnf")):
 931                 if vnf_inst_params["member-vnf-index"] != member_vnf_index:
 932                     continue
 933                 if vnf_inst_params.get("vimAccountId"):
 934                     vim_account = vnf_inst_params.get("vimAccountId")
 935
 936             vnfr_update["vim-account-id"] = vim_account
 937             vnfr_update_rollback["vim-account-id"] = vnfr.get("vim-account-id")
 938
 939             # get pdu
 940             ifaces_forcing_vim_network = self._look_for_pdu(session, rollback, vnfr, vim_account, vnfr_update,
 941                                                             vnfr_update_rollback)
 942
 943             # get kdus
 944             ifaces_forcing_vim_network += self._look_for_k8scluster(session, rollback, vnfr, vim_account, vnfr_update,
 945                                                                     vnfr_update_rollback)
 946             # update database vnfr
 947             self.db.set_one("vnfrs", {"_id": vnfr["_id"]}, vnfr_update)
 948             rollback.append({"topic": "vnfrs", "_id": vnfr["_id"], "operation": "set", "content": vnfr_update_rollback})
 949
 950             # Update indada in case pdu forces to use a concrete vim-network-name
 951             # TODO check if user has already insert a vim-network-name and raises an error
 952             if not ifaces_forcing_vim_network:
 953                 continue
 954             for iface_info in ifaces_forcing_vim_network:
 955                 if iface_info.get("ns-vld-id"):
 956                     if "vld" not in indata:
 957                         indata["vld"] = []
 958                     indata["vld"].append({key: iface_info[key] for key in
 959                                           ("name", "vim-network-name", "vim-network-id") if iface_info.get(key)})
 960
 961                 elif iface_info.get("vnf-vld-id"):
 962                     if "vnf" not in indata:
 963                         indata["vnf"] = []
 964                     indata["vnf"].append({
 965                         "member-vnf-index": member_vnf_index,
 966                         "internal-vld": [{key: iface_info[key] for key in
 967                                           ("name", "vim-network-name", "vim-network-id") if iface_info.get(key)}]
 968                     })
 969
 970     @staticmethod
 971     def _create_nslcmop(nsr_id, operation, params):
 972         """
 973         Creates a ns-lcm-opp content to be stored at database.
 974         :param nsr_id: internal id of the instance
 975         :param operation: instantiate, terminate, scale, action, ...
 976         :param params: user parameters for the operation
 977         :return: dictionary following SOL005 format
 978         """
 979         now = time()
 980         _id = str(uuid4())
 981         nslcmop = {
 982             "id": _id,
 983             "_id": _id,
 984             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
 985             "queuePosition": None,
 986             "stage": None,
 987             "errorMessage": None,
 988             "detailedStatus": None,
 989             "statusEnteredTime": now,
 990             "nsInstanceId": nsr_id,
 991             "lcmOperationType": operation,
 992             "startTime": now,
 993             "isAutomaticInvocation": False,
 994             "operationParams": params,
 995             "isCancelPending": False,
 996             "links": {
 997                 "self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id,
 998                 "nsInstance": "/osm/nslcm/v1/ns_instances/" + nsr_id,
 999             }
1000         }
1001         return nslcmop
1002
1003     def _get_enabled_vims(self, session):
1004         """
1005         Retrieve and return VIM accounts that are accessible by current user and has state ENABLE
1006         :param session: current session with user information
1007         """
1008         db_filter = self._get_project_filter(session)
1009         db_filter["_admin.operationalState"] = "ENABLED"
1010         vims = self.db.get_list("vim_accounts", db_filter)
1011         vimAccounts = []
1012         for vim in vims:
1013             vimAccounts.append(vim['_id'])
1014         return vimAccounts
1015
1016     def new(self, rollback, session, indata=None, kwargs=None, headers=None, slice_object=False):
1017         """
1018         Performs a new operation over a ns
1019         :param rollback: list to append created items at database in case a rollback must to be done
1020         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1021         :param indata: descriptor with the parameters of the operation. It must contains among others
1022             nsInstanceId: _id of the nsr to perform the operation
1023             operation: it can be: instantiate, terminate, action, TODO: update, heal
1024         :param kwargs: used to override the indata descriptor
1025         :param headers: http request headers
1026         :return: id of the nslcmops
1027         """
1028         def check_if_nsr_is_not_slice_member(session, nsr_id):
1029             nsis = None
1030             db_filter = self._get_project_filter(session)
1031             db_filter["_admin.nsrs-detailed-list.ANYINDEX.nsrId"] = nsr_id
1032             nsis = self.db.get_one("nsis", db_filter, fail_on_empty=False, fail_on_more=False)
1033             if nsis:
1034                 raise EngineException("The NS instance {} cannot be terminated because is used by the slice {}".format(
1035                                       nsr_id, nsis["_id"]), http_code=HTTPStatus.CONFLICT)
1036
1037         try:
1038             # Override descriptor with query string kwargs
1039             self._update_input_with_kwargs(indata, kwargs, yaml_format=True)
1040             operation = indata["lcmOperationType"]
1041             nsInstanceId = indata["nsInstanceId"]
1042
1043             validate_input(indata, self.operation_schema[operation])
1044             # get ns from nsr_id
1045             _filter = BaseTopic._get_project_filter(session)
1046             _filter["_id"] = nsInstanceId
1047             nsr = self.db.get_one("nsrs", _filter)
1048
1049             # initial checking
1050             if operation == "terminate" and slice_object is False:
1051                 check_if_nsr_is_not_slice_member(session, nsr["_id"])
1052             if not nsr["_admin"].get("nsState") or nsr["_admin"]["nsState"] == "NOT_INSTANTIATED":
1053                 if operation == "terminate" and indata.get("autoremove"):
1054                     # NSR must be deleted
1055                     return None, None    # a none in this case is used to indicate not instantiated. It can be removed
1056                 if operation != "instantiate":
1057                     raise EngineException("ns_instance '{}' cannot be '{}' because it is not instantiated".format(
1058                         nsInstanceId, operation), HTTPStatus.CONFLICT)
1059             else:
1060                 if operation == "instantiate" and not session["force"]:
1061                     raise EngineException("ns_instance '{}' cannot be '{}' because it is already instantiated".format(
1062                         nsInstanceId, operation), HTTPStatus.CONFLICT)
1063             self._check_ns_operation(session, nsr, operation, indata)
1064
1065             if operation == "instantiate":
1066                 self._update_vnfrs(session, rollback, nsr, indata)
1067
1068             nslcmop_desc = self._create_nslcmop(nsInstanceId, operation, indata)
1069             _id = nslcmop_desc["_id"]
1070             self.format_on_new(nslcmop_desc, session["project_id"], make_public=session["public"])
1071             if indata.get("placement-engine"):
1072                 # Save valid vim accounts in lcm operation descriptor
1073                 nslcmop_desc['operationParams']['validVimAccounts'] = self._get_enabled_vims(session)
1074             self.db.create("nslcmops", nslcmop_desc)
1075             rollback.append({"topic": "nslcmops", "_id": _id})
1076             if not slice_object:
1077                 self.msg.write("ns", operation, nslcmop_desc)
1078             return _id, None
1079         except ValidationError as e:  # TODO remove try Except, it is captured at nbi.py
1080             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
1081         # except DbException as e:
1082         #     raise EngineException("Cannot get ns_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
1083
1084     def delete(self, session, _id, dry_run=False, not_send_msg=None):
1085         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1086
1087     def edit(self, session, _id, indata=None, kwargs=None, content=None):
1088         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1089
1090
1091 class NsiTopic(BaseTopic):
1092     topic = "nsis"
1093     topic_msg = "nsi"
1094     quota_name = "slice_instances"
1095
1096     def __init__(self, db, fs, msg, auth):
1097         BaseTopic.__init__(self, db, fs, msg, auth)
1098         self.nsrTopic = NsrTopic(db, fs, msg, auth)
1099
1100     @staticmethod
1101     def _format_ns_request(ns_request):
1102         formated_request = copy(ns_request)
1103         # TODO: Add request params
1104         return formated_request
1105
1106     @staticmethod
1107     def _format_addional_params(slice_request):
1108         """
1109         Get and format user additional params for NS or VNF
1110         :param slice_request: User instantiation additional parameters
1111         :return: a formatted copy of additional params or None if not supplied
1112         """
1113         additional_params = copy(slice_request.get("additionalParamsForNsi"))
1114         if additional_params:
1115             for k, v in additional_params.items():
1116                 if not isinstance(k, str):
1117                     raise EngineException("Invalid param at additionalParamsForNsi:{}. Only string keys are allowed".
1118                                           format(k))
1119                 if "." in k or "$" in k:
1120                     raise EngineException("Invalid param at additionalParamsForNsi:{}. Keys must not contain dots or $".
1121                                           format(k))
1122                 if isinstance(v, (dict, tuple, list)):
1123                     additional_params[k] = "!!yaml " + safe_dump(v)
1124         return additional_params
1125
1126     def _check_descriptor_dependencies(self, session, descriptor):
1127         """
1128         Check that the dependent descriptors exist on a new descriptor or edition
1129         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1130         :param descriptor: descriptor to be inserted or edit
1131         :return: None or raises exception
1132         """
1133         if not descriptor.get("nst-ref"):
1134             return
1135         nstd_id = descriptor["nst-ref"]
1136         if not self.get_item_list(session, "nsts", {"id": nstd_id}):
1137             raise EngineException("Descriptor error at nst-ref='{}' references a non exist nstd".format(nstd_id),
1138                                   http_code=HTTPStatus.CONFLICT)
1139
1140     def check_conflict_on_del(self, session, _id, db_content):
1141         """
1142         Check that NSI is not instantiated
1143         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1144         :param _id: nsi internal id
1145         :param db_content: The database content of the _id
1146         :return: None or raises EngineException with the conflict
1147         """
1148         if session["force"]:
1149             return
1150         nsi = db_content
1151         if nsi["_admin"].get("nsiState") == "INSTANTIATED":
1152             raise EngineException("nsi '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
1153                                   "Launch 'terminate' operation first; or force deletion".format(_id),
1154                                   http_code=HTTPStatus.CONFLICT)
1155
1156     def delete_extra(self, session, _id, db_content, not_send_msg=None):
1157         """
1158         Deletes associated nsilcmops from database. Deletes associated filesystem.
1159          Set usageState of nst
1160         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1161         :param _id: server internal id
1162         :param db_content: The database content of the descriptor
1163         :param not_send_msg: To not send message (False) or store content (list) instead
1164         :return: None if ok or raises EngineException with the problem
1165         """
1166
1167         # Deleting the nsrs belonging to nsir
1168         nsir = db_content
1169         for nsrs_detailed_item in nsir["_admin"]["nsrs-detailed-list"]:
1170             nsr_id = nsrs_detailed_item["nsrId"]
1171             if nsrs_detailed_item.get("shared"):
1172                 _filter = {"_admin.nsrs-detailed-list.ANYINDEX.shared": True,
1173                            "_admin.nsrs-detailed-list.ANYINDEX.nsrId": nsr_id,
1174                            "_id.ne": nsir["_id"]}
1175                 nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1176                 if nsi:  # last one using nsr
1177                     continue
1178             try:
1179                 self.nsrTopic.delete(session, nsr_id, dry_run=False, not_send_msg=not_send_msg)
1180             except (DbException, EngineException) as e:
1181                 if e.http_code == HTTPStatus.NOT_FOUND:
1182                     pass
1183                 else:
1184                     raise
1185
1186         # delete related nsilcmops database entries
1187         self.db.del_list("nsilcmops", {"netsliceInstanceId": _id})
1188
1189         # Check and set used NST usage state
1190         nsir_admin = nsir.get("_admin")
1191         if nsir_admin and nsir_admin.get("nst-id"):
1192             # check if used by another NSI
1193             nsis_list = self.db.get_one("nsis", {"nst-id": nsir_admin["nst-id"]},
1194                                         fail_on_empty=False, fail_on_more=False)
1195             if not nsis_list:
1196                 self.db.set_one("nsts", {"_id": nsir_admin["nst-id"]}, {"_admin.usageState": "NOT_IN_USE"})
1197
1198     # def delete(self, session, _id, dry_run=False):
1199     #     """
1200     #     Delete item by its internal _id
1201     #     :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1202     #     :param _id: server internal id
1203     #     :param dry_run: make checking but do not delete
1204     #     :return: dictionary with deleted item _id. It raises EngineException on error: not found, conflict, ...
1205     #     """
1206     #     # TODO add admin to filter, validate rights
1207     #     BaseTopic.delete(self, session, _id, dry_run=True)
1208     #     if dry_run:
1209     #         return
1210     #
1211     #     # Deleting the nsrs belonging to nsir
1212     #     nsir = self.db.get_one("nsis", {"_id": _id})
1213     #     for nsrs_detailed_item in nsir["_admin"]["nsrs-detailed-list"]:
1214     #         nsr_id = nsrs_detailed_item["nsrId"]
1215     #         if nsrs_detailed_item.get("shared"):
1216     #             _filter = {"_admin.nsrs-detailed-list.ANYINDEX.shared": True,
1217     #                        "_admin.nsrs-detailed-list.ANYINDEX.nsrId": nsr_id,
1218     #                        "_id.ne": nsir["_id"]}
1219     #             nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1220     #             if nsi:  # last one using nsr
1221     #                 continue
1222     #         try:
1223     #             self.nsrTopic.delete(session, nsr_id, dry_run=False)
1224     #         except (DbException, EngineException) as e:
1225     #             if e.http_code == HTTPStatus.NOT_FOUND:
1226     #                 pass
1227     #             else:
1228     #                 raise
1229     #     # deletes NetSlice instance object
1230     #     v = self.db.del_one("nsis", {"_id": _id})
1231     #
1232     #     # makes a temporal list of nsilcmops objects related to the _id given and deletes them from db
1233     #     _filter = {"netsliceInstanceId": _id}
1234     #     self.db.del_list("nsilcmops", _filter)
1235     #
1236     #     # Search if nst is being used by other nsi
1237     #     nsir_admin = nsir.get("_admin")
1238     #     if nsir_admin:
1239     #         if nsir_admin.get("nst-id"):
1240     #             nsis_list = self.db.get_one("nsis", {"nst-id": nsir_admin["nst-id"]},
1241     #                                         fail_on_empty=False, fail_on_more=False)
1242     #             if not nsis_list:
1243     #                 self.db.set_one("nsts", {"_id": nsir_admin["nst-id"]}, {"_admin.usageState": "NOT_IN_USE"})
1244     #     return v
1245
1246     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
1247         """
1248         Creates a new netslice instance record into database. It also creates needed nsrs and vnfrs
1249         :param rollback: list to append the created items at database in case a rollback must be done
1250         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1251         :param indata: params to be used for the nsir
1252         :param kwargs: used to override the indata descriptor
1253         :param headers: http request headers
1254         :return: the _id of nsi descriptor created at database
1255         """
1256
1257         try:
1258             step = "checking quotas"
1259             self.check_quota(session)
1260
1261             step = ""
1262             slice_request = self._remove_envelop(indata)
1263             # Override descriptor with query string kwargs
1264             self._update_input_with_kwargs(slice_request, kwargs)
1265             self._validate_input_new(slice_request, session["force"])
1266
1267             # look for nstd
1268             step = "getting nstd id='{}' from database".format(slice_request.get("nstId"))
1269             _filter = self._get_project_filter(session)
1270             _filter["_id"] = slice_request["nstId"]
1271             nstd = self.db.get_one("nsts", _filter)
1272             # check NST is not disabled
1273             step = "checking NST operationalState"
1274             if nstd["_admin"]["operationalState"] == "DISABLED":
1275                 raise EngineException("nst with id '{}' is DISABLED, and thus cannot be used to create a netslice "
1276                                       "instance".format(slice_request["nstId"]), http_code=HTTPStatus.CONFLICT)
1277             del _filter["_id"]
1278
1279             # check NSD is not disabled
1280             step = "checking operationalState"
1281             if nstd["_admin"]["operationalState"] == "DISABLED":
1282                 raise EngineException("nst with id '{}' is DISABLED, and thus cannot be used to create "
1283                                       "a network slice".format(slice_request["nstId"]), http_code=HTTPStatus.CONFLICT)
1284
1285             nstd.pop("_admin", None)
1286             nstd_id = nstd.pop("_id", None)
1287             nsi_id = str(uuid4())
1288             step = "filling nsi_descriptor with input data"
1289
1290             # Creating the NSIR
1291             nsi_descriptor = {
1292                 "id": nsi_id,
1293                 "name": slice_request["nsiName"],
1294                 "description": slice_request.get("nsiDescription", ""),
1295                 "datacenter": slice_request["vimAccountId"],
1296                 "nst-ref": nstd["id"],
1297                 "instantiation_parameters": slice_request,
1298                 "network-slice-template": nstd,
1299                 "nsr-ref-list": [],
1300                 "vlr-list": [],
1301                 "_id": nsi_id,
1302                 "additionalParamsForNsi": self._format_addional_params(slice_request)
1303             }
1304
1305             step = "creating nsi at database"
1306             self.format_on_new(nsi_descriptor, session["project_id"], make_public=session["public"])
1307             nsi_descriptor["_admin"]["nsiState"] = "NOT_INSTANTIATED"
1308             nsi_descriptor["_admin"]["netslice-subnet"] = None
1309             nsi_descriptor["_admin"]["deployed"] = {}
1310             nsi_descriptor["_admin"]["deployed"]["RO"] = []
1311             nsi_descriptor["_admin"]["nst-id"] = nstd_id
1312
1313             # Creating netslice-vld for the RO.
1314             step = "creating netslice-vld at database"
1315
1316             # Building the vlds list to be deployed
1317             # From netslice descriptors, creating the initial list
1318             nsi_vlds = []
1319
1320             for netslice_vlds in get_iterable(nstd.get("netslice-vld")):
1321                 # Getting template Instantiation parameters from NST
1322                 nsi_vld = deepcopy(netslice_vlds)
1323                 nsi_vld["shared-nsrs-list"] = []
1324                 nsi_vld["vimAccountId"] = slice_request["vimAccountId"]
1325                 nsi_vlds.append(nsi_vld)
1326
1327             nsi_descriptor["_admin"]["netslice-vld"] = nsi_vlds
1328             # Creating netslice-subnet_record.
1329             needed_nsds = {}
1330             services = []
1331
1332             # Updating the nstd with the nsd["_id"] associated to the nss -> services list
1333             for member_ns in nstd["netslice-subnet"]:
1334                 nsd_id = member_ns["nsd-ref"]
1335                 step = "getting nstd id='{}' constituent-nsd='{}' from database".format(
1336                     member_ns["nsd-ref"], member_ns["id"])
1337                 if nsd_id not in needed_nsds:
1338                     # Obtain nsd
1339                     _filter["id"] = nsd_id
1340                     nsd = self.db.get_one("nsds", _filter, fail_on_empty=True, fail_on_more=True)
1341                     del _filter["id"]
1342                     nsd.pop("_admin")
1343                     needed_nsds[nsd_id] = nsd
1344                 else:
1345                     nsd = needed_nsds[nsd_id]
1346                 member_ns["_id"] = needed_nsds[nsd_id].get("_id")
1347                 services.append(member_ns)
1348
1349                 step = "filling nsir nsd-id='{}' constituent-nsd='{}' from database".format(
1350                     member_ns["nsd-ref"], member_ns["id"])
1351
1352             # creates Network Services records (NSRs)
1353             step = "creating nsrs at database using NsrTopic.new()"
1354             ns_params = slice_request.get("netslice-subnet")
1355             nsrs_list = []
1356             nsi_netslice_subnet = []
1357             for service in services:
1358                 # Check if the netslice-subnet is shared and if it is share if the nss exists
1359                 _id_nsr = None
1360                 indata_ns = {}
1361                 # Is the nss shared and instantiated?
1362                 _filter["_admin.nsrs-detailed-list.ANYINDEX.shared"] = True
1363                 _filter["_admin.nsrs-detailed-list.ANYINDEX.nsd-id"] = service["nsd-ref"]
1364                 _filter["_admin.nsrs-detailed-list.ANYINDEX.nss-id"] = service["id"]
1365                 nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1366                 if nsi and service.get("is-shared-nss"):
1367                     nsrs_detailed_list = nsi["_admin"]["nsrs-detailed-list"]
1368                     for nsrs_detailed_item in nsrs_detailed_list:
1369                         if nsrs_detailed_item["nsd-id"] == service["nsd-ref"]:
1370                             if nsrs_detailed_item["nss-id"] == service["id"]:
1371                                 _id_nsr = nsrs_detailed_item["nsrId"]
1372                                 break
1373                     for netslice_subnet in nsi["_admin"]["netslice-subnet"]:
1374                         if netslice_subnet["nss-id"] == service["id"]:
1375                             indata_ns = netslice_subnet
1376                             break
1377                 else:
1378                     indata_ns = {}
1379                     if service.get("instantiation-parameters"):
1380                         indata_ns = deepcopy(service["instantiation-parameters"])
1381                         # del service["instantiation-parameters"]
1382
1383                     indata_ns["nsdId"] = service["_id"]
1384                     indata_ns["nsName"] = slice_request.get("nsiName") + "." + service["id"]
1385                     indata_ns["vimAccountId"] = slice_request.get("vimAccountId")
1386                     indata_ns["nsDescription"] = service["description"]
1387                     if slice_request.get("ssh_keys"):
1388                         indata_ns["ssh_keys"] = slice_request.get("ssh_keys")
1389
1390                     if ns_params:
1391                         for ns_param in ns_params:
1392                             if ns_param.get("id") == service["id"]:
1393                                 copy_ns_param = deepcopy(ns_param)
1394                                 del copy_ns_param["id"]
1395                                 indata_ns.update(copy_ns_param)
1396                                 break
1397
1398                     # Creates Nsr objects
1399                     _id_nsr, _ = self.nsrTopic.new(rollback, session, indata_ns, kwargs, headers)
1400                 nsrs_item = {"nsrId": _id_nsr, "shared": service.get("is-shared-nss"), "nsd-id": service["nsd-ref"],
1401                              "nss-id": service["id"], "nslcmop_instantiate": None}
1402                 indata_ns["nss-id"] = service["id"]
1403                 nsrs_list.append(nsrs_item)
1404                 nsi_netslice_subnet.append(indata_ns)
1405                 nsr_ref = {"nsr-ref": _id_nsr}
1406                 nsi_descriptor["nsr-ref-list"].append(nsr_ref)
1407
1408             # Adding the nsrs list to the nsi
1409             nsi_descriptor["_admin"]["nsrs-detailed-list"] = nsrs_list
1410             nsi_descriptor["_admin"]["netslice-subnet"] = nsi_netslice_subnet
1411             self.db.set_one("nsts", {"_id": slice_request["nstId"]}, {"_admin.usageState": "IN_USE"})
1412
1413             # Creating the entry in the database
1414             self.db.create("nsis", nsi_descriptor)
1415             rollback.append({"topic": "nsis", "_id": nsi_id})
1416             return nsi_id, None
1417         except Exception as e:   # TODO remove try Except, it is captured at nbi.py
1418             self.logger.exception("Exception {} at NsiTopic.new()".format(e), exc_info=True)
1419             raise EngineException("Error {}: {}".format(step, e))
1420         except ValidationError as e:
1421             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
1422
1423     def edit(self, session, _id, indata=None, kwargs=None, content=None):
1424         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1425
1426
1427 class NsiLcmOpTopic(BaseTopic):
1428     topic = "nsilcmops"
1429     topic_msg = "nsi"
1430     operation_schema = {  # mapping between operation and jsonschema to validate
1431         "instantiate": nsi_instantiate,
1432         "terminate": None
1433     }
1434
1435     def __init__(self, db, fs, msg, auth):
1436         BaseTopic.__init__(self, db, fs, msg, auth)
1437         self.nsi_NsLcmOpTopic = NsLcmOpTopic(self.db, self.fs, self.msg, self.auth)
1438
1439     def _check_nsi_operation(self, session, nsir, operation, indata):
1440         """
1441         Check that user has enter right parameters for the operation
1442         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1443         :param operation: it can be: instantiate, terminate, action, TODO: update, heal
1444         :param indata: descriptor with the parameters of the operation
1445         :return: None
1446         """
1447         nsds = {}
1448         nstd = nsir["network-slice-template"]
1449
1450         def check_valid_netslice_subnet_id(nstId):
1451             # TODO change to vnfR (??)
1452             for netslice_subnet in nstd["netslice-subnet"]:
1453                 if nstId == netslice_subnet["id"]:
1454                     nsd_id = netslice_subnet["nsd-ref"]
1455                     if nsd_id not in nsds:
1456                         _filter = self._get_project_filter(session)
1457                         _filter["id"] = nsd_id
1458                         nsds[nsd_id] = self.db.get_one("nsds", _filter)
1459                     return nsds[nsd_id]
1460             else:
1461                 raise EngineException("Invalid parameter nstId='{}' is not one of the "
1462                                       "nst:netslice-subnet".format(nstId))
1463         if operation == "instantiate":
1464             # check the existance of netslice-subnet items
1465             for in_nst in get_iterable(indata.get("netslice-subnet")):
1466                 check_valid_netslice_subnet_id(in_nst["id"])
1467
1468     def _create_nsilcmop(self, session, netsliceInstanceId, operation, params):
1469         now = time()
1470         _id = str(uuid4())
1471         nsilcmop = {
1472             "id": _id,
1473             "_id": _id,
1474             "operationState": "PROCESSING",  # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
1475             "statusEnteredTime": now,
1476             "netsliceInstanceId": netsliceInstanceId,
1477             "lcmOperationType": operation,
1478             "startTime": now,
1479             "isAutomaticInvocation": False,
1480             "operationParams": params,
1481             "isCancelPending": False,
1482             "links": {
1483                 "self": "/osm/nsilcm/v1/nsi_lcm_op_occs/" + _id,
1484                 "netsliceInstanceId": "/osm/nsilcm/v1/netslice_instances/" + netsliceInstanceId,
1485             }
1486         }
1487         return nsilcmop
1488
1489     def add_shared_nsr_2vld(self, nsir, nsr_item):
1490         for nst_sb_item in nsir["network-slice-template"].get("netslice-subnet"):
1491             if nst_sb_item.get("is-shared-nss"):
1492                 for admin_subnet_item in nsir["_admin"].get("netslice-subnet"):
1493                     if admin_subnet_item["nss-id"] == nst_sb_item["id"]:
1494                         for admin_vld_item in nsir["_admin"].get("netslice-vld"):
1495                             for admin_vld_nss_cp_ref_item in admin_vld_item["nss-connection-point-ref"]:
1496                                 if admin_subnet_item["nss-id"] == admin_vld_nss_cp_ref_item["nss-ref"]:
1497                                     if not nsr_item["nsrId"] in admin_vld_item["shared-nsrs-list"]:
1498                                         admin_vld_item["shared-nsrs-list"].append(nsr_item["nsrId"])
1499                                     break
1500         # self.db.set_one("nsis", {"_id": nsir["_id"]}, nsir)
1501         self.db.set_one("nsis", {"_id": nsir["_id"]}, {"_admin.netslice-vld": nsir["_admin"].get("netslice-vld")})
1502
1503     def new(self, rollback, session, indata=None, kwargs=None, headers=None):
1504         """
1505         Performs a new operation over a ns
1506         :param rollback: list to append created items at database in case a rollback must to be done
1507         :param session: contains "username", "admin", "force", "public", "project_id", "set_project"
1508         :param indata: descriptor with the parameters of the operation. It must contains among others
1509             netsliceInstanceId: _id of the nsir to perform the operation
1510             operation: it can be: instantiate, terminate, action, TODO: update, heal
1511         :param kwargs: used to override the indata descriptor
1512         :param headers: http request headers
1513         :return: id of the nslcmops
1514         """
1515         try:
1516             # Override descriptor with query string kwargs
1517             self._update_input_with_kwargs(indata, kwargs)
1518             operation = indata["lcmOperationType"]
1519             netsliceInstanceId = indata["netsliceInstanceId"]
1520             validate_input(indata, self.operation_schema[operation])
1521
1522             # get nsi from netsliceInstanceId
1523             _filter = self._get_project_filter(session)
1524             _filter["_id"] = netsliceInstanceId
1525             nsir = self.db.get_one("nsis", _filter)
1526             logging_prefix = "nsi={} {} ".format(netsliceInstanceId, operation)
1527             del _filter["_id"]
1528
1529             # initial checking
1530             if not nsir["_admin"].get("nsiState") or nsir["_admin"]["nsiState"] == "NOT_INSTANTIATED":
1531                 if operation == "terminate" and indata.get("autoremove"):
1532                     # NSIR must be deleted
1533                     return None, None    # a none in this case is used to indicate not instantiated. It can be removed
1534                 if operation != "instantiate":
1535                     raise EngineException("netslice_instance '{}' cannot be '{}' because it is not instantiated".format(
1536                         netsliceInstanceId, operation), HTTPStatus.CONFLICT)
1537             else:
1538                 if operation == "instantiate" and not session["force"]:
1539                     raise EngineException("netslice_instance '{}' cannot be '{}' because it is already instantiated".
1540                                           format(netsliceInstanceId, operation), HTTPStatus.CONFLICT)
1541
1542             # Creating all the NS_operation (nslcmop)
1543             # Get service list from db
1544             nsrs_list = nsir["_admin"]["nsrs-detailed-list"]
1545             nslcmops = []
1546             # nslcmops_item = None
1547             for index, nsr_item in enumerate(nsrs_list):
1548                 nsr_id = nsr_item["nsrId"]
1549                 if nsr_item.get("shared"):
1550                     _filter["_admin.nsrs-detailed-list.ANYINDEX.shared"] = True
1551                     _filter["_admin.nsrs-detailed-list.ANYINDEX.nsrId"] = nsr_id
1552                     _filter["_admin.nsrs-detailed-list.ANYINDEX.nslcmop_instantiate.ne"] = None
1553                     _filter["_id.ne"] = netsliceInstanceId
1554                     nsi = self.db.get_one("nsis", _filter, fail_on_empty=False, fail_on_more=False)
1555                     if operation == "terminate":
1556                         _update = {"_admin.nsrs-detailed-list.{}.nslcmop_instantiate".format(index): None}
1557                         self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
1558                         if nsi:  # other nsi is using this nsr and it needs this nsr instantiated
1559                             continue  # do not create nsilcmop
1560                     else:  # instantiate
1561                         # looks the first nsi fulfilling the conditions but not being the current NSIR
1562                         if nsi:
1563                             nsi_nsr_item = next(n for n in nsi["_admin"]["nsrs-detailed-list"] if
1564                                                 n["nsrId"] == nsr_id and n["shared"] and
1565                                                 n["nslcmop_instantiate"])
1566                             self.add_shared_nsr_2vld(nsir, nsr_item)
1567                             nslcmops.append(nsi_nsr_item["nslcmop_instantiate"])
1568                             _update = {"_admin.nsrs-detailed-list.{}".format(index): nsi_nsr_item}
1569                             self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
1570                             # continue to not create nslcmop since nsrs is shared and nsrs was created
1571                             continue
1572                         else:
1573                             self.add_shared_nsr_2vld(nsir, nsr_item)
1574
1575                 # create operation
1576                 try:
1577                     indata_ns = {
1578                         "lcmOperationType": operation,
1579                         "nsInstanceId": nsr_id,
1580                         # Including netslice_id in the ns instantiate Operation
1581                         "netsliceInstanceId": netsliceInstanceId,
1582                     }
1583                     if operation == "instantiate":
1584                         service = self.db.get_one("nsrs", {"_id": nsr_id})
1585                         indata_ns.update(service["instantiate_params"])
1586
1587                     # Creating NS_LCM_OP with the flag slice_object=True to not trigger the service instantiation
1588                     # message via kafka bus
1589                     nslcmop, _ = self.nsi_NsLcmOpTopic.new(rollback, session, indata_ns, None, headers,
1590                                                            slice_object=True)
1591                     nslcmops.append(nslcmop)
1592                     if operation == "instantiate":
1593                         _update = {"_admin.nsrs-detailed-list.{}.nslcmop_instantiate".format(index): nslcmop}
1594                         self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
1595                 except (DbException, EngineException) as e:
1596                     if e.http_code == HTTPStatus.NOT_FOUND:
1597                         self.logger.info(logging_prefix + "skipping NS={} because not found".format(nsr_id))
1598                         pass
1599                     else:
1600                         raise
1601
1602             # Creates nsilcmop
1603             indata["nslcmops_ids"] = nslcmops
1604             self._check_nsi_operation(session, nsir, operation, indata)
1605
1606             nsilcmop_desc = self._create_nsilcmop(session, netsliceInstanceId, operation, indata)
1607             self.format_on_new(nsilcmop_desc, session["project_id"], make_public=session["public"])
1608             _id = self.db.create("nsilcmops", nsilcmop_desc)
1609             rollback.append({"topic": "nsilcmops", "_id": _id})
1610             self.msg.write("nsi", operation, nsilcmop_desc)
1611             return _id, None
1612         except ValidationError as e:
1613             raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
1614
1615     def delete(self, session, _id, dry_run=False, not_send_msg=None):
1616         raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
1617
1618     def edit(self, session, _id, indata=None, kwargs=None, content=None):
1619         raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)