X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2FNBI.git;a=blobdiff_plain;f=osm_nbi%2Finstance_topics.py;h=36b6a4218edb7100ab051d008760644fa6acabb7;hp=b33820259073e1ea1db09818b02045d9aae16409;hb=7b7ffa61e6282094c1bd528e60b3b395c3ab1358;hpb=36ec86019fa668dddbbe0cf9d9ec53b9ea6569cf diff --git a/osm_nbi/instance_topics.py b/osm_nbi/instance_topics.py index b338202..36b6a42 100644 --- a/osm_nbi/instance_topics.py +++ b/osm_nbi/instance_topics.py @@ -1,13 +1,27 @@ # -*- coding: utf-8 -*- +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or +# implied. +# See the License for the specific language governing permissions and +# limitations under the License. + # import logging from uuid import uuid4 from http import HTTPStatus from time import time from copy import copy, deepcopy -from validation import validate_input, ValidationError, ns_instantiate, ns_action, ns_scale +from validation import validate_input, ValidationError, ns_instantiate, ns_action, ns_scale, nsi_instantiate from base_topic import BaseTopic, EngineException, get_iterable from descriptor_topics import DescriptorTopic +from yaml import safe_dump __author__ = "Alfonso Tierno " @@ -61,6 +75,7 @@ class NsrTopic(BaseTopic): if dry_run: return + self.fs.file_delete(_id, ignore_non_exist=True) v = self.db.del_one("nsrs", {"_id": _id}) self.db.del_list("nslcmops", {"nsInstanceId": _id}) self.db.del_list("vnfrs", {"nsr-id-ref": _id}) @@ -70,6 +85,61 @@ class NsrTopic(BaseTopic): self._send_msg("deleted", {"_id": _id}) return v + @staticmethod + def _format_ns_request(ns_request): + formated_request = copy(ns_request) + formated_request.pop("additionalParamsForNs", None) + formated_request.pop("additionalParamsForVnf", None) + return formated_request + + @staticmethod + def _format_addional_params(ns_request, member_vnf_index=None, descriptor=None): + """ + Get and format user additional params for NS or VNF + :param ns_request: User instantiation additional parameters + :param member_vnf_index: None for extract NS params, or member_vnf_index to extract VNF params + :param descriptor: If not None it check that needed parameters of descriptor are supplied + :return: a formated copy of additional params or None if not supplied + """ + additional_params = None + if not member_vnf_index: + additional_params = copy(ns_request.get("additionalParamsForNs")) + where_ = "additionalParamsForNs" + elif ns_request.get("additionalParamsForVnf"): + for additionalParamsForVnf in get_iterable(ns_request.get("additionalParamsForVnf")): + if additionalParamsForVnf["member-vnf-index"] == member_vnf_index: + additional_params = copy(additionalParamsForVnf.get("additionalParams")) + where_ = "additionalParamsForVnf[member-vnf-index={}]".format( + additionalParamsForVnf["member-vnf-index"]) + break + if additional_params: + for k, v in additional_params.items(): + if not isinstance(k, str): + raise EngineException("Invalid param at {}:{}. Only string keys are allowed".format(where_, k)) + if "." in k or "$" in k: + raise EngineException("Invalid param at {}:{}. Keys must not contain dots or $".format(where_, k)) + if isinstance(v, (dict, tuple, list)): + additional_params[k] = "!!yaml " + safe_dump(v) + + if descriptor: + # check that enough parameters are supplied for the initial-config-primitive + # TODO: check for cloud-init + if member_vnf_index: + if descriptor.get("vnf-configuration"): + for initial_primitive in get_iterable( + descriptor["vnf-configuration"].get("initial-config-primitive")): + for param in get_iterable(initial_primitive.get("parameter")): + if param["value"].startswith("<") and param["value"].endswith(">"): + if param["value"] in ("", ""): + continue + if not additional_params or param["value"][1:-1] not in additional_params: + raise EngineException("Parameter '{}' needed for vnfd[id={}]:vnf-configuration:" + "initial-config-primitive[name={}] not supplied". + format(param["value"], descriptor["id"], + initial_primitive["name"])) + + return additional_params + def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False): """ Creates a new nsr into database. It also creates needed vnfrs @@ -97,6 +167,7 @@ class NsrTopic(BaseTopic): nsd = self.db.get_one("nsds", _filter) nsr_id = str(uuid4()) + now = time() step = "filling nsr from input data" nsr_descriptor = { @@ -121,7 +192,8 @@ class NsrTopic(BaseTopic): "nsd-name-ref": nsd["name"], "operational-events": [], # "id", "timestamp", "description", "event", "nsd-ref": nsd["id"], - "instantiate_params": ns_request, + "instantiate_params": self._format_ns_request(ns_request), + "additionalParamsForNs": self._format_addional_params(ns_request), "ns-instance-config-ref": nsr_id, "id": nsr_id, "_id": nsr_id, @@ -134,7 +206,7 @@ class NsrTopic(BaseTopic): nsr_descriptor["vld"] = [] for nsd_vld in nsd.get("vld"): nsr_descriptor["vld"].append( - {key: nsd_vld[key] for key in ("id", "vim-network-name") if key in nsd_vld}) + {key: nsd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in nsd_vld}) # Create VNFR needed_vnfds = {} @@ -157,6 +229,8 @@ class NsrTopic(BaseTopic): "_id": vnfr_id, "nsr-id-ref": nsr_id, "member-vnf-index-ref": member_vnf["member-vnf-index"], + "additionalParamsForVnf": self._format_addional_params(ns_request, member_vnf["member-vnf-index"], + vnfd), "created-time": now, # "vnfd": vnfd, # at OSM model.but removed to avoid data duplication TODO: revise "vnfd-ref": vnfd_id, @@ -172,7 +246,8 @@ class NsrTopic(BaseTopic): vnfr_descriptor["vld"] = [] for vnfd_vld in vnfd.get("internal-vld"): vnfr_descriptor["vld"].append( - {key: vnfd_vld[key] for key in ("id", "vim-network-name") if key in vnfd_vld}) + {key: vnfd_vld[key] for key in ("id", "vim-network-name", "vim-network-id") if key in + vnfd_vld}) vnfd_mgmt_cp = vnfd["mgmt-interface"].get("cp") for cp in vnfd.get("connection-point", ()): @@ -263,6 +338,10 @@ class NsrTopic(BaseTopic): self.format_on_new(nsr_descriptor, session["project_id"], make_public=make_public) self.db.create("nsrs", nsr_descriptor) rollback.append({"topic": "nsrs", "_id": nsr_id}) + + step = "creating nsr temporal folder" + self.fs.mkdir(nsr_id) + return nsr_id except Exception as e: self.logger.exception("Exception {} at NsrTopic.new()".format(e), exc_info=True) @@ -305,17 +384,6 @@ class NsLcmOpTopic(BaseTopic): def __init__(self, db, fs, msg): BaseTopic.__init__(self, db, fs, msg) - def _validate_input_new(self, input, force=False): - """ - Validates input user content for a new entry. It uses jsonschema for each type or operation. - :param input: user input content for the new topic - :param force: may be used for being more tolerant - :return: The same input content, or a changed version of it. - """ - if self.schema_new: - validate_input(input, self.schema_new) - return input - def _check_ns_operation(self, session, nsr, operation, indata): """ Check that user has enter right parameters for the operation @@ -514,10 +582,10 @@ class NsLcmOpTopic(BaseTopic): } self.db.set_one("pdus", {"_id": pdu["_id"]}, {"_admin.usageState": "IN_USE", - "_admin.usage.vnfr_id": vnfr["_id"], - "_admin.usage.nsr_id": vnfr["nsr-id-ref"], - "_admin.usage.vdur": vdur["vdu-id-ref"]} - ) + "_admin.usage": {"vnfr_id": vnfr["_id"], + "nsr_id": vnfr["nsr-id-ref"], + "vdur": vdur["vdu-id-ref"]} + }) rollback.append({"topic": "pdus", "_id": pdu["_id"], "operation": "set", "content": rollback_pdu}) # step 3. Fill vnfr info by filling vdur @@ -539,13 +607,17 @@ class NsLcmOpTopic(BaseTopic): if vdur_interface.get("mgmt-vnf"): vnfr_update_rollback["ip-address"] = vnfr.get("ip-address") vnfr_update["ip-address"] = pdu_interface["ip-address"] - if pdu_interface.get("vim-network-name"): # or pdu_interface.get("vim-network-id"): + if pdu_interface.get("vim-network-name") or pdu_interface.get("vim-network-id"): ifaces_forcing_vim_network.append({ - # "vim-network-id": pdu_interface.get("vim-network-id"), - "vim-network-name": pdu_interface.get("vim-network-name"), "name": vdur_interface.get("vnf-vld-id") or vdur_interface.get("ns-vld-id"), "vnf-vld-id": vdur_interface.get("vnf-vld-id"), "ns-vld-id": vdur_interface.get("ns-vld-id")}) + if pdu_interface.get("vim-network-id"): + ifaces_forcing_vim_network.append({ + "vim-network-id": pdu_interface.get("vim-network-id")}) + if pdu_interface.get("vim-network-name"): + ifaces_forcing_vim_network.append({ + "vim-network-name": pdu_interface.get("vim-network-name")}) break return ifaces_forcing_vim_network @@ -630,7 +702,8 @@ class NsLcmOpTopic(BaseTopic): } return nslcmop - def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False): + def new(self, rollback, session, indata=None, kwargs=None, headers=None, force=False, make_public=False, + slice_object=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 @@ -660,7 +733,7 @@ class NsLcmOpTopic(BaseTopic): if not nsr["_admin"].get("nsState") or nsr["_admin"]["nsState"] == "NOT_INSTANTIATED": if operation == "terminate" and indata.get("autoremove"): # NSR must be deleted - return self.delete(session, nsInstanceId) + return None # a none in this case is used to indicate not instantiated. It can be removed if operation != "instantiate": raise EngineException("ns_instance '{}' cannot be '{}' because it is not instantiated".format( nsInstanceId, operation), HTTPStatus.CONFLICT) @@ -677,7 +750,8 @@ class NsLcmOpTopic(BaseTopic): self.format_on_new(nslcmop_desc, session["project_id"], make_public=make_public) _id = self.db.create("nslcmops", nslcmop_desc) rollback.append({"topic": "nslcmops", "_id": _id}) - self.msg.write("ns", operation, nslcmop_desc) + if not slice_object: + self.msg.write("ns", operation, nslcmop_desc) return _id except ValidationError as e: raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY) @@ -689,3 +763,449 @@ class NsLcmOpTopic(BaseTopic): def edit(self, session, _id, indata=None, kwargs=None, force=False, content=None): raise EngineException("Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR) + + +class NsiTopic(BaseTopic): + topic = "nsis" + topic_msg = "nsi" + + def __init__(self, db, fs, msg): + BaseTopic.__init__(self, db, fs, msg) + self.nsrTopic = NsrTopic(db, fs, msg) + + @staticmethod + def _format_ns_request(ns_request): + formated_request = copy(ns_request) + # TODO: Add request params + return formated_request + + @staticmethod + def _format_addional_params(slice_request): + """ + Get and format user additional params for NS or VNF + :param slice_request: User instantiation additional parameters + :return: a formatted copy of additional params or None if not supplied + """ + additional_params = copy(slice_request.get("additionalParamsForNsi")) + if additional_params: + for k, v in additional_params.items(): + if not isinstance(k, str): + raise EngineException("Invalid param at additionalParamsForNsi:{}. Only string keys are allowed". + format(k)) + if "." in k or "$" in k: + raise EngineException("Invalid param at additionalParamsForNsi:{}. Keys must not contain dots or $". + format(k)) + if isinstance(v, (dict, tuple, list)): + additional_params[k] = "!!yaml " + safe_dump(v) + return additional_params + + 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"] + self.nsrTopic.delete(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 + 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" + + # Creating the NSIR + nsi_descriptor = { + "id": nsi_id, + "name": slice_request["nsiName"], + "description": slice_request.get("nsiDescription", ""), + "datacenter": slice_request["vimAccountId"], + "nst-ref": nstd["id"], + "instantiation_parameters": slice_request, + "network-slice-template": nstd, + "nsr-ref-list": [], + "vlr-list": [], + "_id": nsi_id, + "additionalParamsForNsi": self._format_addional_params(slice_request) + } + + step = "creating nsi at database" + self.format_on_new(nsi_descriptor, session["project_id"], make_public=make_public) + nsi_descriptor["_admin"]["nsiState"] = "NOT_INSTANTIATED" + nsi_descriptor["_admin"]["netslice-subnet"] = None + + # Creating netslice-vld for the RO. + step = "creating netslice-vld at database" + instantiation_parameters = slice_request + + # Building the vlds list to be deployed + # From netslice descriptors, creating the initial list + nsi_vlds = [] + if nstd.get("netslice-vld"): + # Building VLDs from NST + for netslice_vlds in nstd["netslice-vld"]: + nsi_vld = {} + # Adding nst vld name and global vimAccountId for netslice vld creation + nsi_vld["name"] = netslice_vlds["name"] + nsi_vld["vimAccountId"] = slice_request["vimAccountId"] + # Getting template Instantiation parameters from NST + for netslice_vld in netslice_vlds["nss-connection-point-ref"]: + for netslice_subnet in nstd["netslice-subnet"]: + nsi_vld["nsd-ref"] = netslice_subnet["nsd-ref"] + nsi_vld["nsd-connection-point-ref"] = netslice_vld["nsd-connection-point-ref"] + # Obtaining the vimAccountId from template instantiation parameter + if netslice_subnet.get("instantiation-parameters"): + # Taking the vimAccountId from NST netslice-subnet instantiation parameters + if netslice_subnet["instantiation-parameters"].get("vimAccountId"): + netsn = netslice_subnet["instantiation-parameters"]["vimAccountId"] + nsi_vld["vimAccountId"] = netsn + # Obtaining the vimAccountId from user instantiation parameter + if instantiation_parameters.get("netslice-subnet"): + for ins_param in instantiation_parameters["netslice-subnet"]: + if ins_param.get("id") == netslice_vld["nss-ref"]: + if ins_param.get("vimAccountId"): + nsi_vld["vimAccountId"] = ins_param["vimAccountId"] + # Adding vim-network-name / vim-network-id defined by the user to vld + if instantiation_parameters.get("netslice-vld"): + for ins_param in instantiation_parameters["netslice-vld"]: + if ins_param["name"] == netslice_vlds["name"]: + if ins_param.get("vim-network-name"): + nsi_vld["vim-network-name"] = ins_param.get("vim-network-name") + if ins_param.get("vim-network-id"): + nsi_vld["vim-network-id"] = ins_param.get("vim-network-id") + if netslice_vlds.get("mgmt-network"): + nsi_vld["mgmt-network"] = netslice_vlds.get("mgmt-network") + nsi_vlds.append(nsi_vld) + + nsi_descriptor["_admin"]["netslice-vld"] = nsi_vlds + # 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"]) + + # check additionalParamsForSubnet contains a valid id + if slice_request.get("additionalParamsForSubnet"): + for additional_params_subnet in get_iterable(slice_request.get("additionalParamsForSubnet")): + for service in services: + if additional_params_subnet["id"] == service["id"]: + break + else: + raise EngineException("Error at additionalParamsForSubnet:id='{}' not match any " + "netslice-subnet:id".format(additional_params_subnet["id"])) + + # creates Network Services records (NSRs) + step = "creating nsrs at database using NsrTopic.new()" + ns_params = slice_request.get("netslice-subnet") + + nsrs_list = [] + nsi_netslice_subnet = [] + for service in services: + indata_ns = {} + indata_ns["nsdId"] = service["_id"] + indata_ns["nsName"] = slice_request.get("nsiName") + "." + service["id"] + indata_ns["vimAccountId"] = slice_request.get("vimAccountId") + indata_ns["nsDescription"] = service["description"] + indata_ns["key-pair-ref"] = None + for additional_params_subnet in get_iterable(slice_request.get("additionalParamsForSubnet")): + if additional_params_subnet["id"] == service["id"]: + if additional_params_subnet.get("additionalParamsForNs"): + indata_ns["additionalParamsForNs"] = additional_params_subnet["additionalParamsForNs"] + if additional_params_subnet.get("additionalParamsForVnf"): + indata_ns["additionalParamsForVnf"] = additional_params_subnet["additionalParamsForVnf"] + break + + # 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.get("id") == service["id"]: + copy_ns_param = deepcopy(ns_param) + del copy_ns_param["id"] + indata_ns.update(copy_ns_param) + # TODO: Improve network selection via networkID + # Override the instantiation parameters for netslice-vld provided by user + if nsi_vlds: + indata_ns_list = [] + for nsi_vld in nsi_vlds: + nsd = self.db.get_one("nsds", {"id": nsi_vld["nsd-ref"]}) + if nsd["connection-point"]: + for cp_item in nsd["connection-point"]: + if cp_item["name"] == nsi_vld["nsd-connection-point-ref"]: + vld_id_ref = cp_item["vld-id-ref"] + # Mapping the vim-network-name or vim-network-id instantiation parameters + if nsi_vld.get("vim-network-id"): + vnid = nsi_vld.get("vim-network-id") + if type(vnid) is not dict: + vim_network_id = {slice_request.get("vimAccountId"): vnid} + else: # is string + vim_network_id = vnid + indata_ns_list.append({"name": vld_id_ref, "vim-network-id": vim_network_id}) + # Case not vim-network-name instantiation parameter + elif nsi_vld.get("vim-network-name"): + vnm = nsi_vld.get("vim-network-name") + if type(vnm) is not dict: + vim_network_name = {slice_request.get("vimAccountId"): vnm} + else: # is string + vim_network_name = vnm + indata_ns_list.append({"name": vld_id_ref, + "vim-network-name": vim_network_name}) + # Case neither vim-network-name nor vim-network-id provided + else: + indata_ns_list.append({"name": vld_id_ref}) + if indata_ns_list: + indata_ns["vld"] = indata_ns_list + + # Creates Nsr objects + _id_nsr = self.nsrTopic.new(rollback, session, indata_ns, kwargs, headers, force) + nsrs_item = {"nsrId": _id_nsr} + nsrs_list.append(nsrs_item) + nsi_netslice_subnet.append(indata_ns) + nsr_ref = {"nsr-ref": _id_nsr} + nsi_descriptor["nsr-ref-list"].append(nsr_ref) + + # Adding the nsrs list to the nsi + nsi_descriptor["_admin"]["nsrs-detailed-list"] = nsrs_list + nsi_descriptor["_admin"]["netslice-subnet"] = nsi_netslice_subnet + # 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(nstId): + # TODO change to vnfR (??) + for netslice_subnet in nstd["netslice-subnet"]: + if nstId == netslice_subnet["id"]: + nsd_id = netslice_subnet["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 nstId='{}' is not one of the " + "nst:netslice-subnet".format(nstId)) + if operation == "instantiate": + # check the existance of netslice-subnet items + for in_nst in get_iterable(indata.get("netslice-subnet")): + check_valid_netslice_subnet_id(in_nst["id"]) + + 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 None # a none in this case is used to indicate not instantiated. It can be removed + 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)