+
+
+class NsiTopic(BaseTopic):
+ topic = "nsis"
+ topic_msg = "nsi"
+
+ def __init__(self, db, fs, msg):
+ BaseTopic.__init__(self, db, fs, msg)
+
+ def _check_descriptor_dependencies(self, session, descriptor):
+ """
+ Check that the dependent descriptors exist on a new descriptor or edition
+ :param session: client session information
+ :param descriptor: descriptor to be inserted or edit
+ :return: None or raises exception
+ """
+ if not descriptor.get("nst-ref"):
+ return
+ nstd_id = descriptor["nst-ref"]
+ if not self.get_item_list(session, "nsts", {"id": nstd_id}):
+ raise EngineException("Descriptor error at nst-ref='{}' references a non exist nstd".format(nstd_id),
+ http_code=HTTPStatus.CONFLICT)
+
+ @staticmethod
+ def format_on_new(content, project_id=None, make_public=False):
+ BaseTopic.format_on_new(content, project_id=project_id, make_public=make_public)
+
+ def check_conflict_on_del(self, session, _id, force=False):
+ if force:
+ return
+ nsi = self.db.get_one("nsis", {"_id": _id})
+ if nsi["_admin"].get("nsiState") == "INSTANTIATED":
+ raise EngineException("nsi '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
+ "Launch 'terminate' operation first; or force deletion".format(_id),
+ http_code=HTTPStatus.CONFLICT)
+
+ def delete(self, session, _id, force=False, dry_run=False):
+ """
+ Delete item by its internal _id
+ :param session: contains the used login username, working project, and admin rights
+ :param _id: server internal id
+ :param force: indicates if deletion must be forced in case of conflict
+ :param dry_run: make checking but do not delete
+ :return: dictionary with deleted item _id. It raises EngineException on error: not found, conflict, ...
+ """
+ # TODO add admin to filter, validate rights
+ BaseTopic.delete(self, session, _id, force, dry_run=True)
+ if dry_run:
+ return
+
+ # deletes NetSlice instance object
+ v = self.db.del_one("nsis", {"_id": _id})
+
+ # makes a temporal list of nsilcmops objects related to the _id given and deletes them from db
+ _filter = {"netsliceInstanceId": _id}
+ self.db.del_list("nsilcmops", _filter)
+
+ _filter = {"operationParams.netsliceInstanceId": _id}
+ nslcmops_list = self.db.get_list("nslcmops", _filter)
+
+ for id_item in nslcmops_list:
+ _filter = {"_id": id_item}
+ nslcmop = self.db.get_one("nslcmops", _filter)
+ nsr_id = nslcmop["operationParams"]["nsr_id"]
+ NsrTopic.delete(self, session, nsr_id, force=False, dry_run=False)
+ self._send_msg("deleted", {"_id": _id})
+ return v
+
+ def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
+ """
+ Creates a new netslice instance record into database. It also creates needed nsrs and vnfrs
+ :param rollback: list to append the created items at database in case a rollback must be done
+ :param session: contains the used login username and working project
+ :param indata: params to be used for the nsir
+ :param kwargs: used to override the indata descriptor
+ :param headers: http request headers
+ :param force: If True avoid some dependence checks
+ :param make_public: Make the created item public to all projects
+ :return: the _id of nsi descriptor created at database
+ """
+
+ try:
+ slice_request = self._remove_envelop(indata)
+ # Override descriptor with query string kwargs
+ self._update_input_with_kwargs(slice_request, kwargs)
+ self._validate_input_new(slice_request, force)
+
+ step = ""
+ # look for nstd
+ self.logger.info(str(slice_request))
+ step = "getting nstd id='{}' from database".format(slice_request.get("nstId"))
+ _filter = {"_id": slice_request["nstId"]}
+ _filter.update(BaseTopic._get_project_filter(session, write=False, show_all=True))
+ nstd = self.db.get_one("nsts", _filter)
+ nstd.pop("_admin", None)
+ nstd.pop("_id", None)
+ nsi_id = str(uuid4())
+ step = "filling nsi_descriptor with input data"
+
+ # "instantiation-parameters.netslice-subnet": []
+ # TODO: Equal as template for now
+ nsi_descriptor = {
+ "id": nsi_id,
+ "nst-ref": nstd["id"],
+ "instantiation-parameters": {
+ "netslice-subnet": []
+ },
+ "network-slice-template": nstd,
+ "_id": nsi_id,
+ }
+
+ # Creating netslice-subnet_record.
+ needed_nsds = {}
+ services = []
+ for member_ns in nstd["netslice-subnet"]:
+ nsd_id = member_ns["nsd-ref"]
+ step = "getting nstd id='{}' constituent-nsd='{}' from database".format(
+ member_ns["nsd-ref"], member_ns["id"])
+ if nsd_id not in needed_nsds:
+ # Obtain nsd
+ nsd = DescriptorTopic.get_one_by_id(self.db, session, "nsds", nsd_id)
+ nsd.pop("_admin")
+ needed_nsds[nsd_id] = nsd
+ member_ns["_id"] = needed_nsds[nsd_id].get("_id")
+ services.append(member_ns)
+ else:
+ nsd = needed_nsds[nsd_id]
+ member_ns["_id"] = needed_nsds[nsd_id].get("_id")
+ services.append(member_ns)
+
+ step = "filling nsir nsd-id='{}' constituent-nsd='{}' from database".format(
+ member_ns["nsd-ref"], member_ns["id"])
+
+ step = "creating nsi at database"
+ self.format_on_new(nsi_descriptor, session["project_id"], make_public=make_public)
+ nsi_descriptor["_admin"]["nsiState"] = "NOT_INSTANTIATED"
+
+ ns_params = indata.get("ns")
+
+ # creates Network Services records (NSRs)
+ step = "creating nsrs at database using NsrTopic.new()"
+ nsrs_list = []
+ for service in services:
+ indata_ns = {}
+ indata_ns["nsdId"] = service["_id"]
+ indata_ns["nsName"] = service["id"]
+ indata_ns["vimAccountId"] = indata.get("vimAccountId")
+ indata_ns["nsDescription"] = service["description"]
+ indata_ns["key-pair-ref"] = None
+ # NsrTopic(rollback, session, indata_ns, kwargs, headers, force)
+ # Overwriting ns_params filtering by nsName == netslice-subnet.id
+ if ns_params:
+ for ns_param in ns_params:
+ if ns_param["nsName"] == service["id"]:
+ indata_ns.update(ns_param)
+ _id_nsr = NsrTopic.new(self, rollback, session, indata_ns, kwargs, headers, force)
+ nsrs_item = {"nsrId": _id_nsr}
+ nsrs_list.append(nsrs_item)
+
+ # Adding the nsrs list to the nsi
+ nsi_descriptor["_admin"]["nsrs-detailed-list"] = nsrs_list
+ # Creating the entry in the database
+ self.db.create("nsis", nsi_descriptor)
+ rollback.append({"topic": "nsis", "_id": nsi_id})
+ return nsi_id
+ except Exception as e:
+ self.logger.exception("Exception {} at NsiTopic.new()".format(e), exc_info=True)
+ raise EngineException("Error {}: {}".format(step, e))
+ except ValidationError as e:
+ raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
+
+ def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
+ raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
+
+
+class NsiLcmOpTopic(BaseTopic):
+ topic = "nsilcmops"
+ topic_msg = "nsi"
+ operation_schema = { # mapping between operation and jsonschema to validate
+ "instantiate": nsi_instantiate,
+ "terminate": None
+ }
+
+ def __init__(self, db, fs, msg):
+ BaseTopic.__init__(self, db, fs, msg)
+
+ def _check_nsi_operation(self, session, nsir, operation, indata):
+ """
+ Check that user has enter right parameters for the operation
+ :param session:
+ :param operation: it can be: instantiate, terminate, action, TODO: update, heal
+ :param indata: descriptor with the parameters of the operation
+ :return: None
+ """
+ nsds = {}
+ nstd = nsir["network-slice-template"]
+
+ def check_valid_netslice_subnet_id(nsId):
+ # TODO change to vnfR (??)
+ for ns in nstd["netslice-subnet"]:
+ if nsId == ns["id"]:
+ nsd_id = ns["nsd-ref"]
+ if nsd_id not in nsds:
+ nsds[nsd_id] = self.db.get_one("nsds", {"id": nsd_id})
+ return nsds[nsd_id]
+ else:
+ raise EngineException("Invalid parameter nsId='{}' is not one of the "
+ "nst:netslice-subnet".format(nsId))
+ if operation == "instantiate":
+ # check the existance of netslice-subnet items
+ for in_nst in get_iterable(indata.get("netslice-subnet")):
+ nstd = check_valid_netslice_subnet_id(in_nst["nsdId"])
+
+ def _create_nsilcmop(self, session, netsliceInstanceId, operation, params):
+ now = time()
+ _id = str(uuid4())
+ nsilcmop = {
+ "id": _id,
+ "_id": _id,
+ "operationState": "PROCESSING", # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
+ "statusEnteredTime": now,
+ "netsliceInstanceId": netsliceInstanceId,
+ "lcmOperationType": operation,
+ "startTime": now,
+ "isAutomaticInvocation": False,
+ "operationParams": params,
+ "isCancelPending": False,
+ "links": {
+ "self": "/osm/nsilcm/v1/nsi_lcm_op_occs/" + _id,
+ "nsInstance": "/osm/nsilcm/v1/netslice_instances/" + netsliceInstanceId,
+ }
+ }
+ return nsilcmop
+
+ def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False):
+ """
+ Performs a new operation over a ns
+ :param rollback: list to append created items at database in case a rollback must to be done
+ :param session: contains the used login username and working project
+ :param indata: descriptor with the parameters of the operation. It must contains among others
+ nsiInstanceId: _id of the nsir to perform the operation
+ operation: it can be: instantiate, terminate, action, TODO: update, heal
+ :param kwargs: used to override the indata descriptor
+ :param headers: http request headers
+ :param force: If True avoid some dependence checks
+ :param make_public: Make the created item public to all projects
+ :return: id of the nslcmops
+ """
+ try:
+ # Override descriptor with query string kwargs
+ self._update_input_with_kwargs(indata, kwargs)
+ operation = indata["lcmOperationType"]
+ nsiInstanceId = indata["nsiInstanceId"]
+ validate_input(indata, self.operation_schema[operation])
+
+ # get nsi from nsiInstanceId
+ _filter = BaseTopic._get_project_filter(session, write=True, show_all=False)
+ _filter["_id"] = nsiInstanceId
+ nsir = self.db.get_one("nsis", _filter)
+
+ # initial checking
+ if not nsir["_admin"].get("nsiState") or nsir["_admin"]["nsiState"] == "NOT_INSTANTIATED":
+ if operation == "terminate" and indata.get("autoremove"):
+ # NSIR must be deleted
+ return self.delete(session, nsiInstanceId)
+ if operation != "instantiate":
+ raise EngineException("netslice_instance '{}' cannot be '{}' because it is not instantiated".format(
+ nsiInstanceId, operation), HTTPStatus.CONFLICT)
+ else:
+ if operation == "instantiate" and not indata.get("force"):
+ raise EngineException("netslice_instance '{}' cannot be '{}' because it is already instantiated".
+ format(nsiInstanceId, operation), HTTPStatus.CONFLICT)
+
+ # Creating all the NS_operation (nslcmop)
+ # Get service list from db
+ nsrs_list = nsir["_admin"]["nsrs-detailed-list"]
+ nslcmops = []
+ for nsr_item in nsrs_list:
+ service = self.db.get_one("nsrs", {"_id": nsr_item["nsrId"]})
+ indata_ns = {}
+ indata_ns = service["instantiate_params"]
+ indata_ns["lcmOperationType"] = operation
+ indata_ns["nsInstanceId"] = service["_id"]
+ # Including netslice_id in the ns instantiate Operation
+ indata_ns["netsliceInstanceId"] = nsiInstanceId
+ del indata_ns["key-pair-ref"]
+ nsi_NsLcmOpTopic = NsLcmOpTopic(self.db, self.fs, self.msg)
+ # Creating NS_LCM_OP with the flag slice_object=True to not trigger the service instantiation
+ # message via kafka bus
+ nslcmop = nsi_NsLcmOpTopic.new(rollback, session, indata_ns, kwargs, headers, force, slice_object=True)
+ nslcmops.append(nslcmop)
+
+ # Creates nsilcmop
+ indata["nslcmops_ids"] = nslcmops
+ self._check_nsi_operation(session, nsir, operation, indata)
+ nsilcmop_desc = self._create_nsilcmop(session, nsiInstanceId, operation, indata)
+ self.format_on_new(nsilcmop_desc, session["project_id"], make_public=make_public)
+ _id = self.db.create("nsilcmops", nsilcmop_desc)
+ rollback.append({"topic": "nsilcmops", "_id": _id})
+ self.msg.write("nsi", operation, nsilcmop_desc)
+ return _id
+ except ValidationError as e:
+ raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
+ # except DbException as e:
+ # raise EngineException("Cannot get nsi_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
+
+ def delete(self, session, _id, force=False, dry_run=False):
+ raise EngineException("Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
+
+ def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None):
+ raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR)
projects / osm / NBI.git / blobdiff