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osm.etsi.org / osm / NBI / refs/heads/master / . / osm_nbi / instance_topics.py
blob: aa3e51cf63ac21721393dd502fb755147bd8c5bd [file] [log] [blame]
# -*- 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
import json
from uuid import uuid4
from http import HTTPStatus
from time import time
from copy import copy, deepcopy
from osm_nbi.validation import (
validate_input,
ValidationError,
ns_instantiate,
ns_terminate,
ns_action,
ns_scale,
ns_update,
ns_heal,
nsi_instantiate,
ns_migrate,
nslcmop_cancel,
)
from osm_nbi.base_topic import (
BaseTopic,
EngineException,
get_iterable,
deep_get,
increment_ip_mac,
update_descriptor_usage_state,
)
from yaml import safe_dump
from osm_common.dbbase import DbException
from osm_common.msgbase import MsgException
from osm_common.fsbase import FsException
from osm_nbi import utils
from re import (
match,
) # For checking that additional parameter names are valid Jinja2 identifiers
__author__ = "Alfonso Tierno <alfonso.tiernosepulveda@telefonica.com>"
class NsrTopic(BaseTopic):
topic = "nsrs"
topic_msg = "ns"
quota_name = "ns_instances"
schema_new = ns_instantiate
def __init__(self, db, fs, msg, auth):
BaseTopic.__init__(self, db, fs, msg, auth)
@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)
content["_admin"]["nsState"] = "NOT_INSTANTIATED"
return None
def check_conflict_on_del(self, session, _id, db_content):
"""
Check that NSR is not instantiated
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param _id: nsr internal id
:param db_content: The database content of the nsr
:return: None or raises EngineException with the conflict
"""
if session["force"]:
return
nsr = db_content
if nsr["_admin"].get("nsState") == "INSTANTIATED":
raise EngineException(
"nsr '{}' cannot be deleted because it is in 'INSTANTIATED' state. "
"Launch 'terminate' operation first; or force deletion".format(_id),
http_code=HTTPStatus.CONFLICT,
)
def delete_extra(self, session, _id, db_content, not_send_msg=None):
"""
Deletes associated nslcmops and vnfrs from database. Deletes associated filesystem.
Set usageState of pdu, vnfd, nsd
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param _id: server internal id
:param db_content: The database content of the descriptor
:param not_send_msg: To not send message (False) or store content (list) instead
:return: None if ok or raises EngineException with the problem
"""
self.fs.file_delete(_id, ignore_non_exist=True)
self.db.del_list("nslcmops", {"nsInstanceId": _id})
self.db.del_list("vnfrs", {"nsr-id-ref": _id})
# set all used pdus as free
self.db.set_list(
"pdus",
{"_admin.usage.nsr_id": _id},
{"_admin.usageState": "NOT_IN_USE", "_admin.usage": None},
)
# Set NSD usageState
nsr = db_content
used_nsd_id = nsr.get("nsd-id")
if used_nsd_id:
# check if used by another NSR
nsrs_list = self.db.get_one(
"nsrs", {"nsd-id": used_nsd_id}, fail_on_empty=False, fail_on_more=False
)
if not nsrs_list:
self.db.set_one(
"nsds", {"_id": used_nsd_id}, {"_admin.usageState": "NOT_IN_USE"}
)
# Set NS CONFIG TEMPLATE usageState
if nsr.get("instantiate_params", {}).get("nsConfigTemplateId"):
nsconfigtemplate_id = nsr.get("instantiate_params", {}).get(
"nsConfigTemplateId"
)
nsconfigtemplate_list = self.db.get_one(
"nsrs",
{"instantiate_params.nsConfigTemplateId": nsconfigtemplate_id},
fail_on_empty=False,
fail_on_more=False,
)
if not nsconfigtemplate_list:
self.db.set_one(
"ns_config_template",
{"_id": nsconfigtemplate_id},
{"_admin.usageState": "NOT_IN_USE"},
)
# Set VNFD usageState
used_vnfd_id_list = nsr.get("vnfd-id")
if used_vnfd_id_list:
for used_vnfd_id in used_vnfd_id_list:
# check if used by another NSR
nsrs_list = self.db.get_one(
"nsrs",
{"vnfd-id": used_vnfd_id},
fail_on_empty=False,
fail_on_more=False,
)
if not nsrs_list:
self.db.set_one(
"vnfds",
{"_id": used_vnfd_id},
{"_admin.usageState": "NOT_IN_USE"},
)
# delete extra ro_nsrs used for internal RO module
self.db.del_one("ro_nsrs", q_filter={"_id": _id}, fail_on_empty=False)
@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_additional_params(
ns_request, member_vnf_index=None, vdu_id=None, kdu_name=None, descriptor=None
):
"""
Get and format user additional params for NS or VNF.
The vdu_id and kdu_name params are mutually exclusive! If none of them are given, then the method will
exclusively search for the VNF/NS LCM additional params.
:param ns_request: User instantiation additional parameters
:param member_vnf_index: None for extract NS params, or member_vnf_index to extract VNF params
:vdu_id: VDU's ID against which we want to format the additional params
:kdu_name: KDU's name against which we want to format the additional params
:param descriptor: If not None it check that needed parameters of descriptor are supplied
:return: tuple with a formatted copy of additional params or None if not supplied, plus other parameters
"""
additional_params = None
other_params = None
if not member_vnf_index:
additional_params = copy(ns_request.get("additionalParamsForNs"))
where_ = "additionalParamsForNs"
elif ns_request.get("additionalParamsForVnf"):
where_ = "additionalParamsForVnf[member-vnf-index={}]".format(
member_vnf_index
)
item = next(
(
x
for x in ns_request["additionalParamsForVnf"]
if x["member-vnf-index"] == member_vnf_index
),
None,
)
if item:
if not vdu_id and not kdu_name:
other_params = item
additional_params = copy(item.get("additionalParams")) or {}
if vdu_id and item.get("additionalParamsForVdu"):
item_vdu = next(
(
x
for x in item["additionalParamsForVdu"]
if x["vdu_id"] == vdu_id
),
None,
)
other_params = item_vdu
if item_vdu and item_vdu.get("additionalParams"):
where_ += ".additionalParamsForVdu[vdu_id={}]".format(vdu_id)
additional_params = item_vdu["additionalParams"]
if kdu_name:
additional_params = {}
if item.get("additionalParamsForKdu"):
item_kdu = next(
(
x
for x in item["additionalParamsForKdu"]
if x["kdu_name"] == kdu_name
),
None,
)
other_params = item_kdu
if item_kdu and item_kdu.get("additionalParams"):
where_ += ".additionalParamsForKdu[kdu_name={}]".format(
kdu_name
)
additional_params = item_kdu["additionalParams"]
if additional_params:
for k, v in additional_params.items():
# BEGIN Check that additional parameter names are valid Jinja2 identifiers if target is not Kdu
if not kdu_name and not match("^[a-zA-Z_][a-zA-Z0-9_]*$", k):
raise EngineException(
"Invalid param name at {}:{}. Must contain only alphanumeric characters "
"and underscores, and cannot start with a digit".format(
where_, k
)
)
# END Check that additional parameter names are valid Jinja2 identifiers
if not isinstance(k, str):
raise EngineException(
"Invalid param at {}:{}. Only string keys are allowed".format(
where_, k
)
)
if "$" in k:
raise EngineException(
"Invalid param at {}:{}. Keys must not contain $ symbol".format(
where_, k
)
)
if isinstance(v, (dict, tuple, list)):
additional_params[k] = "!!yaml " + safe_dump(v)
if kdu_name:
additional_params = json.dumps(additional_params)
# Select the VDU ID, KDU name or NS/VNF ID, depending on the method's call intent
selector = vdu_id if vdu_id else kdu_name if kdu_name else descriptor.get("id")
if descriptor:
for df in descriptor.get("df", []):
# check that enough parameters are supplied for the initial-config-primitive
# TODO: check for cloud-init
if member_vnf_index:
initial_primitives = []
if (
"lcm-operations-configuration" in df
and "operate-vnf-op-config"
in df["lcm-operations-configuration"]
):
for config in df["lcm-operations-configuration"][
"operate-vnf-op-config"
].get("day1-2", []):
# Verify the target object (VNF|NS|VDU|KDU) where we need to populate
# the params with the additional ones given by the user
if config.get("id") == selector:
for primitive in get_iterable(
config.get("initial-config-primitive")
):
initial_primitives.append(primitive)
else:
initial_primitives = deep_get(
descriptor, ("ns-configuration", "initial-config-primitive")
)
for initial_primitive in get_iterable(initial_primitives):
for param in get_iterable(initial_primitive.get("parameter")):
if param["value"].startswith("<") and param["value"].endswith(
">"
):
if param["value"] in (
"<rw_mgmt_ip>",
"<VDU_SCALE_INFO>",
"<ns_config_info>",
"<OSM>",
):
continue
if (
not additional_params
or param["value"][1:-1] not in additional_params
):
raise EngineException(
"Parameter '{}' needed for vnfd[id={}]:day1-2 configuration:"
"initial-config-primitive[name={}] not supplied".format(
param["value"],
descriptor["id"],
initial_primitive["name"],
)
)
return additional_params or None, other_params or None
def new(self, rollback, session, indata=None, kwargs=None, headers=None):
"""
Creates a new nsr into database. It also creates needed vnfrs
:param rollback: list to append the created items at database in case a rollback must be done
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param indata: params to be used for the nsr
:param kwargs: used to override the indata descriptor
:param headers: http request headers
:return: the _id of nsr descriptor created at database. Or an exception of type
EngineException, ValidationError, DbException, FsException, MsgException.
Note: Exceptions are not captured on purpose. They should be captured at called
"""
step = "checking quotas" # first step must be defined outside try
try:
self.check_quota(session)
step = "validating input parameters"
ns_request = self._remove_envelop(indata)
self._update_input_with_kwargs(ns_request, kwargs)
ns_request = self._validate_input_new(ns_request, session["force"])
step = "getting nsd id='{}' from database".format(ns_request.get("nsdId"))
nsd = self._get_nsd_from_db(ns_request["nsdId"], session)
ns_k8s_namespace = self._get_ns_k8s_namespace(nsd, ns_request, session)
# Uploading the instantiation parameters to ns_request from ns config template
if ns_request.get("nsConfigTemplateId"):
step = "getting ns_config_template is='{}' from database".format(
ns_request.get("nsConfigTemplateId")
)
ns_config_template_db = self._get_nsConfigTemplate_from_db(
ns_request.get("nsConfigTemplateId"), session
)
ns_config_params = ns_config_template_db.get("config")
for key, value in ns_config_params.items():
if key == "vnf":
ns_request["vnf"] = ns_config_params.get("vnf")
elif key == "additionalParamsForVnf":
ns_request["additionalParamsForVnf"] = ns_config_params.get(
"additionalParamsForVnf"
)
elif key == "additionalParamsForNs":
ns_request["additionalParamsForNs"] = ns_config_params.get(
"additionalParamsForNs"
)
elif key == "vld":
ns_request["vld"] = ns_config_params.get("vld")
step = "checking ns_config_templateOperationalState"
self._check_ns_config_template_operational_state(
ns_config_template_db, ns_request
)
step = "Updating NSCONFIG TEMPLATE usageState"
update_descriptor_usage_state(
ns_config_template_db, "ns_config_template", self.db
)
elif ns_request.get("vnf"):
vnf_data = ns_request.get("vnf")
for vnf in vnf_data:
for vdu in vnf.get("vdu", []):
if vdu.get("vim-flavor-name") and vdu.get("vim-flavor-id"):
raise EngineException(
"Instantiation parameters vim-flavor-name and vim-flavor-id are mutually exclusive"
)
step = "checking nsdOperationalState"
self._check_nsd_operational_state(nsd, ns_request)
step = "filling nsr from input data"
nsr_id = str(uuid4())
nsr_descriptor = self._create_nsr_descriptor_from_nsd(
nsd, ns_request, nsr_id, session
)
# Create VNFRs
needed_vnfds = {}
# TODO: Change for multiple df support
vnf_profiles = nsd.get("df", [{}])[0].get("vnf-profile", ())
for vnfp in vnf_profiles:
vnfd_id = vnfp.get("vnfd-id")
vnf_index = vnfp.get("id")
step = (
"getting vnfd id='{}' constituent-vnfd='{}' from database".format(
vnfd_id, vnf_index
)
)
if vnfd_id not in needed_vnfds:
vnfd = self._get_vnfd_from_db(vnfd_id, session)
if "revision" in vnfd["_admin"]:
vnfd["revision"] = vnfd["_admin"]["revision"]
vnfd.pop("_admin")
needed_vnfds[vnfd_id] = vnfd
nsr_descriptor["vnfd-id"].append(vnfd["_id"])
else:
vnfd = needed_vnfds[vnfd_id]
step = "filling vnfr vnfd-id='{}' constituent-vnfd='{}'".format(
vnfd_id, vnf_index
)
vnfr_descriptor = self._create_vnfr_descriptor_from_vnfd(
nsd,
vnfd,
vnfd_id,
vnf_index,
nsr_descriptor,
ns_request,
ns_k8s_namespace,
)
step = "creating vnfr vnfd-id='{}' constituent-vnfd='{}' at database".format(
vnfd_id, vnf_index
)
self._add_vnfr_to_db(vnfr_descriptor, rollback, session)
nsr_descriptor["constituent-vnfr-ref"].append(vnfr_descriptor["id"])
step = "Updating VNFD usageState"
update_descriptor_usage_state(vnfd, "vnfds", self.db)
step = "creating nsr at database"
self._add_nsr_to_db(nsr_descriptor, rollback, session)
step = "Updating NSD usageState"
update_descriptor_usage_state(nsd, "nsds", self.db)
step = "creating nsr temporal folder"
self.fs.mkdir(nsr_id)
return nsr_id, None
except (
ValidationError,
EngineException,
DbException,
MsgException,
FsException,
) as e:
raise type(e)("{} while '{}'".format(e, step), http_code=e.http_code)
def _get_nsd_from_db(self, nsd_id, session):
_filter = self._get_project_filter(session)
_filter["_id"] = nsd_id
return self.db.get_one("nsds", _filter)
def _get_nsConfigTemplate_from_db(self, nsConfigTemplate_id, session):
_filter = self._get_project_filter(session)
_filter["_id"] = nsConfigTemplate_id
ns_config_template_db = self.db.get_one(
"ns_config_template", _filter, fail_on_empty=False
)
return ns_config_template_db
def _get_vnfd_from_db(self, vnfd_id, session):
_filter = self._get_project_filter(session)
_filter["id"] = vnfd_id
vnfd = self.db.get_one("vnfds", _filter, fail_on_empty=True, fail_on_more=True)
return vnfd
def _add_nsr_to_db(self, nsr_descriptor, rollback, session):
self.format_on_new(
nsr_descriptor, session["project_id"], make_public=session["public"]
)
self.db.create("nsrs", nsr_descriptor)
rollback.append({"topic": "nsrs", "_id": nsr_descriptor["id"]})
def _add_vnfr_to_db(self, vnfr_descriptor, rollback, session):
self.format_on_new(
vnfr_descriptor, session["project_id"], make_public=session["public"]
)
self.db.create("vnfrs", vnfr_descriptor)
rollback.append({"topic": "vnfrs", "_id": vnfr_descriptor["id"]})
def _check_nsd_operational_state(self, nsd, ns_request):
if nsd["_admin"]["operationalState"] == "DISABLED":
raise EngineException(
"nsd with id '{}' is DISABLED, and thus cannot be used to create "
"a network service".format(ns_request["nsdId"]),
http_code=HTTPStatus.CONFLICT,
)
def _check_ns_config_template_operational_state(
self, ns_config_template_db, ns_request
):
if ns_config_template_db["_admin"]["operationalState"] == "DISABLED":
raise EngineException(
"ns_config_template with id '{}' is DISABLED, and thus cannot be used to create "
"a network service".format(ns_request["nsConfigTemplateId"]),
http_code=HTTPStatus.CONFLICT,
)
def _get_ns_k8s_namespace(self, nsd, ns_request, session):
additional_params, _ = self._format_additional_params(
ns_request, descriptor=nsd
)
# use for k8s-namespace from ns_request or additionalParamsForNs. By default, the project_id
ns_k8s_namespace = session["project_id"][0] if session["project_id"] else None
if ns_request and ns_request.get("k8s-namespace"):
ns_k8s_namespace = ns_request["k8s-namespace"]
if additional_params and additional_params.get("k8s-namespace"):
ns_k8s_namespace = additional_params["k8s-namespace"]
return ns_k8s_namespace
def _add_shared_volumes_to_nsr(
self, vdu, vnfd, nsr_descriptor, member_vnf_index, revision=None
):
svsd = []
for vsd in vnfd.get("virtual-storage-desc", ()):
if vsd.get("vdu-storage-requirements"):
if (
vsd.get("vdu-storage-requirements")[0].get("key") == "multiattach"
and vsd.get("vdu-storage-requirements")[0].get("value") == "True"
):
# Avoid setting the volume name multiple times
if not match(f"shared-.*-{vnfd['id']}", vsd["id"]):
vsd["id"] = f"shared-{vsd['id']}-{vnfd['id']}"
svsd.append(vsd)
if svsd:
nsr_descriptor["shared-volumes"] = svsd
def _add_flavor_to_nsr(
self, vdu, vnfd, nsr_descriptor, member_vnf_index, revision=None
):
flavor_data = {}
guest_epa = {}
# Find this vdu compute and storage descriptors
vdu_virtual_compute = {}
vdu_virtual_storage = {}
for vcd in vnfd.get("virtual-compute-desc", ()):
if vcd.get("id") == vdu.get("virtual-compute-desc"):
vdu_virtual_compute = vcd
for vsd in vnfd.get("virtual-storage-desc", ()):
if vsd.get("id") == vdu.get("virtual-storage-desc", [[]])[0]:
vdu_virtual_storage = vsd
# Get this vdu vcpus, memory and storage info for flavor_data
if vdu_virtual_compute.get("virtual-cpu", {}).get("num-virtual-cpu"):
flavor_data["vcpu-count"] = vdu_virtual_compute["virtual-cpu"][
"num-virtual-cpu"
]
if vdu_virtual_compute.get("virtual-memory", {}).get("size"):
flavor_data["memory-mb"] = (
float(vdu_virtual_compute["virtual-memory"]["size"]) * 1024.0
)
if vdu_virtual_storage.get("size-of-storage"):
flavor_data["storage-gb"] = vdu_virtual_storage["size-of-storage"]
# Get this vdu EPA info for guest_epa
if vdu_virtual_compute.get("virtual-cpu", {}).get("cpu-quota"):
guest_epa["cpu-quota"] = vdu_virtual_compute["virtual-cpu"]["cpu-quota"]
if vdu_virtual_compute.get("virtual-cpu", {}).get("pinning"):
vcpu_pinning = vdu_virtual_compute["virtual-cpu"]["pinning"]
if vcpu_pinning.get("thread-policy"):
guest_epa["cpu-thread-pinning-policy"] = vcpu_pinning["thread-policy"]
if vcpu_pinning.get("policy"):
cpu_policy = (
"SHARED" if vcpu_pinning["policy"] == "dynamic" else "DEDICATED"
)
guest_epa["cpu-pinning-policy"] = cpu_policy
if vdu_virtual_compute.get("virtual-memory", {}).get("mem-quota"):
guest_epa["mem-quota"] = vdu_virtual_compute["virtual-memory"]["mem-quota"]
if vdu_virtual_compute.get("virtual-memory", {}).get("mempage-size"):
guest_epa["mempage-size"] = vdu_virtual_compute["virtual-memory"][
"mempage-size"
]
if vdu_virtual_compute.get("virtual-memory", {}).get("numa-node-policy"):
guest_epa["numa-node-policy"] = vdu_virtual_compute["virtual-memory"][
"numa-node-policy"
]
if vdu_virtual_storage.get("disk-io-quota"):
guest_epa["disk-io-quota"] = vdu_virtual_storage["disk-io-quota"]
if guest_epa:
flavor_data["guest-epa"] = guest_epa
revision = revision if revision is not None else 1
flavor_data["name"] = (
vdu["id"][:56] + "-" + member_vnf_index + "-" + str(revision) + "-flv"
)
flavor_data["id"] = str(len(nsr_descriptor["flavor"]))
nsr_descriptor["flavor"].append(flavor_data)
def _create_nsr_descriptor_from_nsd(self, nsd, ns_request, nsr_id, session):
now = time()
additional_params, _ = self._format_additional_params(
ns_request, descriptor=nsd
)
nsr_descriptor = {
"name": ns_request["nsName"],
"name-ref": ns_request["nsName"],
"short-name": ns_request["nsName"],
"admin-status": "ENABLED",
"nsState": "NOT_INSTANTIATED",
"currentOperation": "IDLE",
"currentOperationID": None,
"errorDescription": None,
"errorDetail": None,
"deploymentStatus": None,
"configurationStatus": None,
"vcaStatus": None,
"nsd": {k: v for k, v in nsd.items()},
"datacenter": ns_request["vimAccountId"],
"resource-orchestrator": "osmopenmano",
"description": ns_request.get("nsDescription", ""),
"constituent-vnfr-ref": [],
"operational-status": "init", # typedef ns-operational-
"config-status": "init", # typedef config-states
"detailed-status": "scheduled",
"orchestration-progress": {},
"create-time": now,
"nsd-name-ref": nsd["name"],
"operational-events": [], # "id", "timestamp", "description", "event",
"nsd-ref": nsd["id"],
"nsd-id": nsd["_id"],
"vnfd-id": [],
"instantiate_params": self._format_ns_request(ns_request),
"additionalParamsForNs": additional_params,
"ns-instance-config-ref": nsr_id,
"id": nsr_id,
"_id": nsr_id,
"ssh-authorized-key": ns_request.get("ssh_keys"), # TODO remove
"flavor": [],
"image": [],
"affinity-or-anti-affinity-group": [],
"shared-volumes": [],
"vnffgd": [],
}
if "revision" in nsd["_admin"]:
nsr_descriptor["revision"] = nsd["_admin"]["revision"]
ns_request["nsr_id"] = nsr_id
if ns_request and ns_request.get("config-units"):
nsr_descriptor["config-units"] = ns_request["config-units"]
# Create vld
if nsd.get("virtual-link-desc"):
nsr_vld = deepcopy(nsd.get("virtual-link-desc", []))
# Fill each vld with vnfd-connection-point-ref data
# TODO: Change for multiple df support
all_vld_connection_point_data = {vld.get("id"): [] for vld in nsr_vld}
vnf_profiles = nsd.get("df", [[]])[0].get("vnf-profile", ())
for vnf_profile in vnf_profiles:
for vlc in vnf_profile.get("virtual-link-connectivity", ()):
for cpd in vlc.get("constituent-cpd-id", ()):
all_vld_connection_point_data[
vlc.get("virtual-link-profile-id")
].append(
{
"member-vnf-index-ref": cpd.get(
"constituent-base-element-id"
),
"vnfd-connection-point-ref": cpd.get(
"constituent-cpd-id"
),
"vnfd-id-ref": vnf_profile.get("vnfd-id"),
}
)
vnfd = self._get_vnfd_from_db(vnf_profile.get("vnfd-id"), session)
vnfd.pop("_admin")
for vdu in vnfd.get("vdu", ()):
member_vnf_index = vnf_profile.get("id")
self._add_flavor_to_nsr(vdu, vnfd, nsr_descriptor, member_vnf_index)
self._add_shared_volumes_to_nsr(
vdu, vnfd, nsr_descriptor, member_vnf_index
)
sw_image_id = vdu.get("sw-image-desc")
if sw_image_id:
image_data = self._get_image_data_from_vnfd(vnfd, sw_image_id)
self._add_image_to_nsr(nsr_descriptor, image_data)
# also add alternative images to the list of images
for alt_image in vdu.get("alternative-sw-image-desc", ()):
image_data = self._get_image_data_from_vnfd(vnfd, alt_image)
self._add_image_to_nsr(nsr_descriptor, image_data)
# Add Affinity or Anti-affinity group information to NSR
vdu_profiles = vnfd.get("df", [[]])[0].get("vdu-profile", ())
affinity_group_prefix_name = "{}-{}".format(
nsr_descriptor["name"][:16], vnf_profile.get("id")[:16]
)
for vdu_profile in vdu_profiles:
affinity_group_data = {}
for affinity_group in vdu_profile.get(
"affinity-or-anti-affinity-group", ()
):
affinity_group_data = (
self._get_affinity_or_anti_affinity_group_data_from_vnfd(
vnfd, affinity_group["id"]
)
)
affinity_group_data["member-vnf-index"] = vnf_profile.get("id")
self._add_affinity_or_anti_affinity_group_to_nsr(
nsr_descriptor,
affinity_group_data,
affinity_group_prefix_name,
)
for vld in nsr_vld:
vld["vnfd-connection-point-ref"] = all_vld_connection_point_data.get(
vld.get("id"), []
)
vld["name"] = vld["id"]
nsr_descriptor["vld"] = nsr_vld
if nsd.get("vnffgd"):
vnffgd = nsd.get("vnffgd")
for vnffg in vnffgd:
info = {}
for k, v in vnffg.items():
if k == "id":
info.update({k: v})
if k == "nfpd":
info.update({k: v})
nsr_descriptor["vnffgd"].append(info)
return nsr_descriptor
def _get_affinity_or_anti_affinity_group_data_from_vnfd(
self, vnfd, affinity_group_id
):
"""
Gets affinity-or-anti-affinity-group info from df and returns the desired affinity group
"""
affinity_group = utils.find_in_list(
vnfd.get("df", [[]])[0].get("affinity-or-anti-affinity-group", ()),
lambda ag: ag["id"] == affinity_group_id,
)
affinity_group_data = {}
if affinity_group:
if affinity_group.get("id"):
affinity_group_data["ag-id"] = affinity_group["id"]
if affinity_group.get("type"):
affinity_group_data["type"] = affinity_group["type"]
if affinity_group.get("scope"):
affinity_group_data["scope"] = affinity_group["scope"]
return affinity_group_data
def _add_affinity_or_anti_affinity_group_to_nsr(
self, nsr_descriptor, affinity_group_data, affinity_group_prefix_name
):
"""
Adds affinity-or-anti-affinity-group to nsr checking first it is not already added
"""
affinity_group = next(
(
f
for f in nsr_descriptor["affinity-or-anti-affinity-group"]
if all(f.get(k) == affinity_group_data[k] for k in affinity_group_data)
),
None,
)
if not affinity_group:
affinity_group_data["id"] = str(
len(nsr_descriptor["affinity-or-anti-affinity-group"])
)
affinity_group_data["name"] = "{}-{}".format(
affinity_group_prefix_name, affinity_group_data["ag-id"][:32]
)
nsr_descriptor["affinity-or-anti-affinity-group"].append(
affinity_group_data
)
def _get_image_data_from_vnfd(self, vnfd, sw_image_id):
sw_image_desc = utils.find_in_list(
vnfd.get("sw-image-desc", ()), lambda sw: sw["id"] == sw_image_id
)
image_data = {}
if sw_image_desc.get("image"):
image_data["image"] = sw_image_desc["image"]
if sw_image_desc.get("checksum"):
image_data["image_checksum"] = sw_image_desc["checksum"]["hash"]
if sw_image_desc.get("vim-type"):
image_data["vim-type"] = sw_image_desc["vim-type"]
return image_data
def _add_image_to_nsr(self, nsr_descriptor, image_data):
"""
Adds image to nsr checking first it is not already added
"""
img = next(
(
f
for f in nsr_descriptor["image"]
if all(f.get(k) == image_data[k] for k in image_data)
),
None,
)
if not img:
image_data["id"] = str(len(nsr_descriptor["image"]))
nsr_descriptor["image"].append(image_data)
def _create_vnfr_descriptor_from_vnfd(
self,
nsd,
vnfd,
vnfd_id,
vnf_index,
nsr_descriptor,
ns_request,
ns_k8s_namespace,
revision=None,
):
vnfr_id = str(uuid4())
nsr_id = nsr_descriptor["id"]
now = time()
additional_params, vnf_params = self._format_additional_params(
ns_request, vnf_index, descriptor=vnfd
)
vnfr_descriptor = {
"id": vnfr_id,
"_id": vnfr_id,
"nsr-id-ref": nsr_id,
"member-vnf-index-ref": vnf_index,
"additionalParamsForVnf": additional_params,
"created-time": now,
# "vnfd": vnfd, # at OSM model.but removed to avoid data duplication TODO: revise
"vnfd-ref": vnfd_id,
"vnfd-id": vnfd["_id"], # not at OSM model, but useful
"vim-account-id": None,
"vca-id": None,
"vdur": [],
"connection-point": [],
"ip-address": None, # mgmt-interface filled by LCM
}
# Revision backwards compatility. Only specify the revision in the record if
# the original VNFD has a revision.
if "revision" in vnfd:
vnfr_descriptor["revision"] = vnfd["revision"]
vnf_k8s_namespace = ns_k8s_namespace
if vnf_params:
if vnf_params.get("k8s-namespace"):
vnf_k8s_namespace = vnf_params["k8s-namespace"]
if vnf_params.get("config-units"):
vnfr_descriptor["config-units"] = vnf_params["config-units"]
# Create vld
if vnfd.get("int-virtual-link-desc"):
vnfr_descriptor["vld"] = []
for vnfd_vld in vnfd.get("int-virtual-link-desc"):
vnfr_descriptor["vld"].append({key: vnfd_vld[key] for key in vnfd_vld})
for cp in vnfd.get("ext-cpd", ()):
vnf_cp = {
"name": cp.get("id"),
"connection-point-id": cp.get("int-cpd", {}).get("cpd"),
"connection-point-vdu-id": cp.get("int-cpd", {}).get("vdu-id"),
"id": cp.get("id"),
# "ip-address", "mac-address" # filled by LCM
# vim-id # TODO it would be nice having a vim port id
}
vnfr_descriptor["connection-point"].append(vnf_cp)
# Create k8s-cluster information
# TODO: Validate if a k8s-cluster net can have more than one ext-cpd ?
if vnfd.get("k8s-cluster"):
vnfr_descriptor["k8s-cluster"] = vnfd["k8s-cluster"]
all_k8s_cluster_nets_cpds = {}
for cpd in get_iterable(vnfd.get("ext-cpd")):
if cpd.get("k8s-cluster-net"):
all_k8s_cluster_nets_cpds[cpd.get("k8s-cluster-net")] = cpd.get(
"id"
)
for net in get_iterable(vnfr_descriptor["k8s-cluster"].get("nets")):
if net.get("id") in all_k8s_cluster_nets_cpds:
net["external-connection-point-ref"] = all_k8s_cluster_nets_cpds[
net.get("id")
]
# update kdus
for kdu in get_iterable(vnfd.get("kdu")):
additional_params, kdu_params = self._format_additional_params(
ns_request, vnf_index, kdu_name=kdu["name"], descriptor=vnfd
)
kdu_k8s_namespace = vnf_k8s_namespace
kdu_model = kdu_params.get("kdu_model") if kdu_params else None
if kdu_params and kdu_params.get("k8s-namespace"):
kdu_k8s_namespace = kdu_params["k8s-namespace"]
kdu_deployment_name = ""
if kdu_params and kdu_params.get("kdu-deployment-name"):
kdu_deployment_name = kdu_params.get("kdu-deployment-name")
kdur = {
"additionalParams": additional_params,
"k8s-namespace": kdu_k8s_namespace,
"kdu-deployment-name": kdu_deployment_name,
"kdu-name": kdu["name"],
# TODO "name": "" Name of the VDU in the VIM
"ip-address": None, # mgmt-interface filled by LCM
"k8s-cluster": {},
}
if kdu_params and kdu_params.get("config-units"):
kdur["config-units"] = kdu_params["config-units"]
if kdu.get("helm-version"):
kdur["helm-version"] = kdu["helm-version"]
for k8s_type in ("helm-chart", "juju-bundle"):
if kdu.get(k8s_type):
kdur[k8s_type] = kdu_model or kdu[k8s_type]
if not vnfr_descriptor.get("kdur"):
vnfr_descriptor["kdur"] = []
vnfr_descriptor["kdur"].append(kdur)
vnfd_mgmt_cp = vnfd.get("mgmt-cp")
for vdu in vnfd.get("vdu", ()):
vdu_mgmt_cp = []
try:
configs = vnfd.get("df")[0]["lcm-operations-configuration"][
"operate-vnf-op-config"
]["day1-2"]
vdu_config = utils.find_in_list(
configs, lambda config: config["id"] == vdu["id"]
)
except Exception:
vdu_config = None
try:
vdu_instantiation_level = utils.find_in_list(
vnfd.get("df")[0]["instantiation-level"][0]["vdu-level"],
lambda a_vdu_profile: a_vdu_profile["vdu-id"] == vdu["id"],
)
except Exception:
vdu_instantiation_level = None
if vdu_config:
external_connection_ee = utils.filter_in_list(
vdu_config.get("execution-environment-list", []),
lambda ee: "external-connection-point-ref" in ee,
)
for ee in external_connection_ee:
vdu_mgmt_cp.append(ee["external-connection-point-ref"])
additional_params, vdu_params = self._format_additional_params(
ns_request, vnf_index, vdu_id=vdu["id"], descriptor=vnfd
)
try:
vdu_virtual_storage_descriptors = utils.filter_in_list(
vnfd.get("virtual-storage-desc", []),
lambda stg_desc: stg_desc["id"] in vdu["virtual-storage-desc"],
)
except Exception:
vdu_virtual_storage_descriptors = []
vdur = {
"vdu-id-ref": vdu["id"],
# TODO "name": "" Name of the VDU in the VIM
"ip-address": None, # mgmt-interface filled by LCM
# "vim-id", "flavor-id", "image-id", "management-ip" # filled by LCM
"internal-connection-point": [],
"interfaces": [],
"additionalParams": additional_params,
"vdu-name": vdu["name"],
"virtual-storages": vdu_virtual_storage_descriptors,
}
if vdu_params and vdu_params.get("config-units"):
vdur["config-units"] = vdu_params["config-units"]
if deep_get(vdu, ("supplemental-boot-data", "boot-data-drive")):
vdur["boot-data-drive"] = vdu["supplemental-boot-data"][
"boot-data-drive"
]
if vdu.get("pdu-type"):
vdur["pdu-type"] = vdu["pdu-type"]
vdur["name"] = vdu["pdu-type"]
# TODO volumes: name, volume-id
for icp in vdu.get("int-cpd", ()):
vdu_icp = {
"id": icp["id"],
"connection-point-id": icp["id"],
"name": icp.get("id"),
}
vdur["internal-connection-point"].append(vdu_icp)
for iface in icp.get("virtual-network-interface-requirement", ()):
# Name, mac-address and interface position is taken from VNFD
# and included into VNFR. By this way RO can process this information
# while creating the VDU.
iface_fields = ("name", "mac-address", "position", "ip-address")
vdu_iface = {
x: iface[x] for x in iface_fields if iface.get(x) is not None
}
vdu_iface["internal-connection-point-ref"] = vdu_icp["id"]
if "port-security-enabled" in icp:
vdu_iface["port-security-enabled"] = icp[
"port-security-enabled"
]
if "port-security-disable-strategy" in icp:
vdu_iface["port-security-disable-strategy"] = icp[
"port-security-disable-strategy"
]
for ext_cp in vnfd.get("ext-cpd", ()):
if not ext_cp.get("int-cpd"):
continue
if ext_cp["int-cpd"].get("vdu-id") != vdu["id"]:
continue
if icp["id"] == ext_cp["int-cpd"].get("cpd"):
vdu_iface["external-connection-point-ref"] = ext_cp.get(
"id"
)
if "port-security-enabled" in ext_cp:
vdu_iface["port-security-enabled"] = ext_cp[
"port-security-enabled"
]
if "port-security-disable-strategy" in ext_cp:
vdu_iface["port-security-disable-strategy"] = ext_cp[
"port-security-disable-strategy"
]
break
if (
vnfd_mgmt_cp
and vdu_iface.get("external-connection-point-ref")
== vnfd_mgmt_cp
):
vdu_iface["mgmt-vnf"] = True
vdu_iface["mgmt-interface"] = True
for ecp in vdu_mgmt_cp:
if vdu_iface.get("external-connection-point-ref") == ecp:
vdu_iface["mgmt-interface"] = True
if iface.get("virtual-interface"):
vdu_iface.update(deepcopy(iface["virtual-interface"]))
# look for network where this interface is connected
iface_ext_cp = vdu_iface.get("external-connection-point-ref")
if iface_ext_cp:
# TODO: Change for multiple df support
for df in get_iterable(nsd.get("df")):
for vnf_profile in get_iterable(df.get("vnf-profile")):
for vlc_index, vlc in enumerate(
get_iterable(
vnf_profile.get("virtual-link-connectivity")
)
):
for cpd in get_iterable(
vlc.get("constituent-cpd-id")
):
if (
cpd.get("constituent-cpd-id")
== iface_ext_cp
) and vnf_profile.get("id") == vnf_index:
vdu_iface["ns-vld-id"] = vlc.get(
"virtual-link-profile-id"
)
# if iface type is SRIOV or PASSTHROUGH, set pci-interfaces flag to True
if vdu_iface.get("type") in (
"SR-IOV",
"PCI-PASSTHROUGH",
):
nsr_descriptor["vld"][vlc_index][
"pci-interfaces"
] = True
break
elif vdu_iface.get("internal-connection-point-ref"):
vdu_iface["vnf-vld-id"] = icp.get("int-virtual-link-desc")
# TODO: store fixed IP address in the record (if it exists in the ICP)
# if iface type is SRIOV or PASSTHROUGH, set pci-interfaces flag to True
if vdu_iface.get("type") in ("SR-IOV", "PCI-PASSTHROUGH"):
ivld_index = utils.find_index_in_list(
vnfd.get("int-virtual-link-desc", ()),
lambda ivld: ivld["id"]
== icp.get("int-virtual-link-desc"),
)
vnfr_descriptor["vld"][ivld_index]["pci-interfaces"] = True
vdur["interfaces"].append(vdu_iface)
if vdu.get("sw-image-desc"):
sw_image = utils.find_in_list(
vnfd.get("sw-image-desc", ()),
lambda image: image["id"] == vdu.get("sw-image-desc"),
)
nsr_sw_image_data = utils.find_in_list(
nsr_descriptor["image"],
lambda nsr_image: (nsr_image.get("image") == sw_image.get("image")),
)
vdur["ns-image-id"] = nsr_sw_image_data["id"]
if vdu.get("alternative-sw-image-desc"):
alt_image_ids = []
for alt_image_id in vdu.get("alternative-sw-image-desc", ()):
sw_image = utils.find_in_list(
vnfd.get("sw-image-desc", ()),
lambda image: image["id"] == alt_image_id,
)
nsr_sw_image_data = utils.find_in_list(
nsr_descriptor["image"],
lambda nsr_image: (
nsr_image.get("image") == sw_image.get("image")
),
)
alt_image_ids.append(nsr_sw_image_data["id"])
vdur["alt-image-ids"] = alt_image_ids
revision = revision if revision is not None else 1
flavor_data_name = (
vdu["id"][:56] + "-" + vnf_index + "-" + str(revision) + "-flv"
)
nsr_flavor_desc = utils.find_in_list(
nsr_descriptor["flavor"],
lambda flavor: flavor["name"] == flavor_data_name,
)
if nsr_flavor_desc:
vdur["ns-flavor-id"] = nsr_flavor_desc["id"]
# Adding Shared Volume information to vdur
if vdur.get("virtual-storages"):
nsr_sv = []
for vsd in vdur["virtual-storages"]:
if vsd.get("vdu-storage-requirements"):
if (
vsd["vdu-storage-requirements"][0].get("key")
== "multiattach"
and vsd["vdu-storage-requirements"][0].get("value")
== "True"
):
nsr_sv.append(vsd["id"])
if nsr_sv:
vdur["shared-volumes-id"] = nsr_sv
# Adding Affinity groups information to vdur
try:
vdu_profile_affinity_group = utils.find_in_list(
vnfd.get("df")[0]["vdu-profile"],
lambda a_vdu: a_vdu["id"] == vdu["id"],
)
except Exception:
vdu_profile_affinity_group = None
if vdu_profile_affinity_group:
affinity_group_ids = []
for affinity_group in vdu_profile_affinity_group.get(
"affinity-or-anti-affinity-group", ()
):
vdu_affinity_group = utils.find_in_list(
vdu_profile_affinity_group.get(
"affinity-or-anti-affinity-group", ()
),
lambda ag_fp: ag_fp["id"] == affinity_group["id"],
)
nsr_affinity_group = utils.find_in_list(
nsr_descriptor["affinity-or-anti-affinity-group"],
lambda nsr_ag: (
nsr_ag.get("ag-id") == vdu_affinity_group.get("id")
and nsr_ag.get("member-vnf-index")
== vnfr_descriptor.get("member-vnf-index-ref")
),
)
# Update Affinity Group VIM name if VDU instantiation parameter is present
if vnf_params and vnf_params.get("affinity-or-anti-affinity-group"):
vnf_params_affinity_group = utils.find_in_list(
vnf_params["affinity-or-anti-affinity-group"],
lambda vnfp_ag: (
vnfp_ag.get("id") == vdu_affinity_group.get("id")
),
)
if vnf_params_affinity_group.get("vim-affinity-group-id"):
nsr_affinity_group[
"vim-affinity-group-id"
] = vnf_params_affinity_group["vim-affinity-group-id"]
affinity_group_ids.append(nsr_affinity_group["id"])
vdur["affinity-or-anti-affinity-group-id"] = affinity_group_ids
if vdu_instantiation_level:
count = vdu_instantiation_level.get("number-of-instances")
else:
count = 1
for index in range(0, count):
vdur = deepcopy(vdur)
for iface in vdur["interfaces"]:
if iface.get("ip-address") and index != 0:
iface["ip-address"] = increment_ip_mac(iface["ip-address"])
if iface.get("mac-address") and index != 0:
iface["mac-address"] = increment_ip_mac(iface["mac-address"])
vdur["_id"] = str(uuid4())
vdur["id"] = vdur["_id"]
vdur["count-index"] = index
vnfr_descriptor["vdur"].append(vdur)
return vnfr_descriptor
def vca_status_refresh(self, session, ns_instance_content, filter_q):
"""
vcaStatus in ns_instance_content maybe stale, check if it is stale and create lcm op
to refresh vca status by sending message to LCM when it is stale. Ignore otherwise.
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param ns_instance_content: ns instance content
:param filter_q: dict: query parameter containing vcaStatus-refresh as true or false
:return: None
"""
time_now, time_delta = (
time(),
time() - ns_instance_content["_admin"]["modified"],
)
force_refresh = (
isinstance(filter_q, dict) and filter_q.get("vcaStatusRefresh") == "true"
)
threshold_reached = time_delta > 120
if force_refresh or threshold_reached:
operation, _id = "vca_status_refresh", ns_instance_content["_id"]
ns_instance_content["_admin"]["modified"] = time_now
self.db.set_one(self.topic, {"_id": _id}, ns_instance_content)
nslcmop_desc = NsLcmOpTopic._create_nslcmop(_id, operation, None)
self.format_on_new(
nslcmop_desc, session["project_id"], make_public=session["public"]
)
nslcmop_desc["_admin"].pop("nsState")
self.msg.write("ns", operation, nslcmop_desc)
return
def show(self, session, _id, filter_q=None, api_req=False):
"""
Get complete information on an ns instance.
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param _id: string, ns instance id
:param filter_q: dict: query parameter containing vcaStatusRefresh as true or false
:param api_req: True if this call is serving an external API request. False if serving internal request.
:return: dictionary, raise exception if not found.
"""
ns_instance_content = super().show(session, _id, api_req)
self.vca_status_refresh(session, ns_instance_content, filter_q)
return ns_instance_content
def edit(self, session, _id, indata=None, kwargs=None, content=None):
raise EngineException(
"Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
class VnfrTopic(BaseTopic):
topic = "vnfrs"
topic_msg = None
def __init__(self, db, fs, msg, auth):
BaseTopic.__init__(self, db, fs, msg, auth)
def delete(self, session, _id, dry_run=False, not_send_msg=None):
raise EngineException(
"Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
def edit(self, session, _id, indata=None, kwargs=None, content=None):
raise EngineException(
"Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
def new(self, rollback, session, indata=None, kwargs=None, headers=None):
# Not used because vnfrs are created and deleted by NsrTopic class directly
raise EngineException(
"Method new called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
class NsLcmOpTopic(BaseTopic):
topic = "nslcmops"
topic_msg = "ns"
operation_schema = { # mapping between operation and jsonschema to validate
"instantiate": ns_instantiate,
"action": ns_action,
"update": ns_update,
"scale": ns_scale,
"heal": ns_heal,
"terminate": ns_terminate,
"migrate": ns_migrate,
"cancel": nslcmop_cancel,
}
def __init__(self, db, fs, msg, auth):
BaseTopic.__init__(self, db, fs, msg, auth)
self.nsrtopic = NsrTopic(db, fs, msg, auth)
def _check_ns_operation(self, session, nsr, operation, indata):
"""
Check that user has enter right parameters for the operation
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param operation: it can be: instantiate, terminate, action, update, heal
:param indata: descriptor with the parameters of the operation
:return: None
"""
if operation == "action":
self._check_action_ns_operation(indata, nsr)
elif operation == "scale":
self._check_scale_ns_operation(indata, nsr)
elif operation == "update":
self._check_update_ns_operation(indata, nsr)
elif operation == "heal":
self._check_heal_ns_operation(indata, nsr)
elif operation == "instantiate":
self._check_instantiate_ns_operation(indata, nsr, session)
def _check_action_ns_operation(self, indata, nsr):
nsd = nsr["nsd"]
# check vnf_member_index
if indata.get("vnf_member_index"):
indata["member_vnf_index"] = indata.pop(
"vnf_member_index"
) # for backward compatibility
if indata.get("member_vnf_index"):
vnfd = self._get_vnfd_from_vnf_member_index(
indata["member_vnf_index"], nsr["_id"]
)
try:
configs = vnfd.get("df")[0]["lcm-operations-configuration"][
"operate-vnf-op-config"
]["day1-2"]
except Exception:
configs = []
if indata.get("vdu_id"):
self._check_valid_vdu(vnfd, indata["vdu_id"])
descriptor_configuration = utils.find_in_list(
configs, lambda config: config["id"] == indata["vdu_id"]
)
elif indata.get("kdu_name"):
self._check_valid_kdu(vnfd, indata["kdu_name"])
descriptor_configuration = utils.find_in_list(
configs, lambda config: config["id"] == indata.get("kdu_name")
)
else:
descriptor_configuration = utils.find_in_list(
configs, lambda config: config["id"] == vnfd["id"]
)
if descriptor_configuration is not None:
descriptor_configuration = descriptor_configuration.get(
"config-primitive"
)
else: # use a NSD
descriptor_configuration = nsd.get("ns-configuration", {}).get(
"config-primitive"
)
# For k8s allows default primitives without validating the parameters
if indata.get("kdu_name") and indata["primitive"] in (
"upgrade",
"rollback",
"status",
"inspect",
"readme",
):
# TODO should be checked that rollback only can contains revsision_numbe????
if not indata.get("member_vnf_index"):
raise EngineException(
"Missing action parameter 'member_vnf_index' for default KDU primitive '{}'".format(
indata["primitive"]
)
)
return
# if not, check primitive
for config_primitive in get_iterable(descriptor_configuration):
if indata["primitive"] == config_primitive["name"]:
# check needed primitive_params are provided
if indata.get("primitive_params"):
in_primitive_params_copy = copy(indata["primitive_params"])
else:
in_primitive_params_copy = {}
for paramd in get_iterable(config_primitive.get("parameter")):
if paramd["name"] in in_primitive_params_copy:
del in_primitive_params_copy[paramd["name"]]
elif not paramd.get("default-value"):
raise EngineException(
"Needed parameter {} not provided for primitive '{}'".format(
paramd["name"], indata["primitive"]
)
)
# check no extra primitive params are provided
if in_primitive_params_copy:
raise EngineException(
"parameter/s '{}' not present at vnfd /nsd for primitive '{}'".format(
list(in_primitive_params_copy.keys()), indata["primitive"]
)
)
break
else:
raise EngineException(
"Invalid primitive '{}' is not present at vnfd/nsd".format(
indata["primitive"]
)
)
def _check_update_ns_operation(self, indata, nsr) -> None:
"""Validates the ns-update request according to updateType
If updateType is CHANGE_VNFPKG:
- it checks the vnfInstanceId, whether it's available under ns instance
- it checks the vnfdId whether it matches with the vnfd-id in the vnf-record of specified VNF.
Otherwise exception will be raised.
If updateType is REMOVE_VNF:
- it checks if the vnfInstanceId is available in the ns instance
- Otherwise exception will be raised.
If updateType is OPERATE_VNF
- it checks if the vdu-id is persent in the descriptor or not
- it checks if the changeStateTo is either start, stop or rebuild
If updateType is VERTICAL_SCALE
- it checks if the vdu-id is persent in the descriptor or not
Args:
indata: includes updateType such as CHANGE_VNFPKG,
nsr: network service record
Raises:
EngineException:
a meaningful error if given update parameters are not proper such as
"Error in validating ns-update request: <ID> does not match
with the vnfd-id of vnfinstance
http_code=HTTPStatus.UNPROCESSABLE_ENTITY"
"""
try:
if indata["updateType"] == "CHANGE_VNFPKG":
# vnfInstanceId, nsInstanceId, vnfdId are mandatory
vnf_instance_id = indata["changeVnfPackageData"]["vnfInstanceId"]
ns_instance_id = indata["nsInstanceId"]
vnfd_id_2update = indata["changeVnfPackageData"]["vnfdId"]
if vnf_instance_id not in nsr["constituent-vnfr-ref"]:
raise EngineException(
f"Error in validating ns-update request: vnf {vnf_instance_id} does not "
f"belong to NS {ns_instance_id}",
http_code=HTTPStatus.UNPROCESSABLE_ENTITY,
)
# Getting vnfrs through the ns_instance_id
vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": ns_instance_id})
constituent_vnfd_id = next(
(
vnfr["vnfd-id"]
for vnfr in vnfrs
if vnfr["id"] == vnf_instance_id
),
None,
)
# Check the given vnfd-id belongs to given vnf instance
if constituent_vnfd_id and (vnfd_id_2update != constituent_vnfd_id):
raise EngineException(
f"Error in validating ns-update request: vnfd-id {vnfd_id_2update} does not "
f"match with the vnfd-id: {constituent_vnfd_id} of VNF instance: {vnf_instance_id}",
http_code=HTTPStatus.UNPROCESSABLE_ENTITY,
)
# Validating the ns update timeout
if (
indata.get("timeout_ns_update")
and indata["timeout_ns_update"] < 300
):
raise EngineException(
"Error in validating ns-update request: {} second is not enough "
"to upgrade the VNF instance: {}".format(
indata["timeout_ns_update"], vnf_instance_id
),
http_code=HTTPStatus.UNPROCESSABLE_ENTITY,
)
elif indata["updateType"] == "REMOVE_VNF":
vnf_instance_id = indata["removeVnfInstanceId"]
ns_instance_id = indata["nsInstanceId"]
if vnf_instance_id not in nsr["constituent-vnfr-ref"]:
raise EngineException(
"Invalid VNF Instance Id. '{}' is not "
"present in the NS '{}'".format(vnf_instance_id, ns_instance_id)
)
elif indata["updateType"] == "OPERATE_VNF":
if indata.get("operateVnfData"):
if indata["operateVnfData"]["changeStateTo"] not in (
"start",
"stop",
"rebuild",
"console",
):
raise EngineException(
f"The operate type should be either start, stop, console or rebuild not {indata['operateVnfData']['changeStateTo']}",
http_code=HTTPStatus.UNPROCESSABLE_ENTITY,
)
if indata["operateVnfData"].get("additionalParam"):
vdu_id = indata["operateVnfData"]["additionalParam"]["vdu_id"]
vnfinstance_id = indata["operateVnfData"]["vnfInstanceId"]
vnf = self.db.get_one("vnfrs", {"_id": vnfinstance_id})
vnfd_member_vnf_index = vnf.get("member-vnf-index-ref")
vnfd = self._get_vnfd_from_vnf_member_index(
vnfd_member_vnf_index, nsr["_id"]
)
self._check_valid_vdu(vnfd, vdu_id)
elif indata["updateType"] == "VERTICAL_SCALE":
if indata.get("verticalScaleVnf"):
vdu_id = indata["verticalScaleVnf"]["vduId"]
vnfinstance_id = indata["verticalScaleVnf"]["vnfInstanceId"]
vnf = self.db.get_one("vnfrs", {"_id": vnfinstance_id})
vnfd_member_vnf_index = vnf.get("member-vnf-index-ref")
vnfd = self._get_vnfd_from_vnf_member_index(
vnfd_member_vnf_index, nsr["_id"]
)
self._check_valid_vdu(vnfd, vdu_id)
except (
DbException,
AttributeError,
IndexError,
KeyError,
ValueError,
) as e:
raise type(e)(
"Ns update request could not be processed with error: {}.".format(e)
)
def _check_scale_ns_operation(self, indata, nsr):
vnfd = self._get_vnfd_from_vnf_member_index(
indata["scaleVnfData"]["scaleByStepData"]["member-vnf-index"], nsr["_id"]
)
for scaling_aspect in get_iterable(vnfd.get("df", ())[0]["scaling-aspect"]):
if (
indata["scaleVnfData"]["scaleByStepData"]["scaling-group-descriptor"]
== scaling_aspect["id"]
):
break
else:
raise EngineException(
"Invalid scaleVnfData:scaleByStepData:scaling-group-descriptor '{}' is not "
"present at vnfd:scaling-aspect".format(
indata["scaleVnfData"]["scaleByStepData"][
"scaling-group-descriptor"
]
)
)
def _check_heal_ns_operation(self, indata, nsr):
try:
for data in indata.get("healVnfData"):
vnf_id = data.get("vnfInstanceId")
vnf = self.db.get_one("vnfrs", {"_id": vnf_id})
vnfd_member_vnf_index = vnf.get("member-vnf-index-ref")
vnfd = self._get_vnfd_from_vnf_member_index(
vnfd_member_vnf_index, nsr["_id"]
)
if data.get("additionalParams"):
vdu_id = data["additionalParams"].get("vdu")
if vdu_id:
for index in range(len(vdu_id)):
vdu = vdu_id[index].get("vdu-id")
self._check_valid_vdu(vnfd, vdu)
except (DbException, AttributeError, IndexError, KeyError, ValueError) as e:
raise type(e)(
"Ns healing request could not be processed with error: {}.".format(e)
)
def _check_instantiate_ns_operation(self, indata, nsr, session):
vnf_member_index_to_vnfd = {} # map between vnf_member_index to vnf descriptor.
vim_accounts = []
wim_accounts = []
nsd = nsr["nsd"]
self._check_valid_vim_account(indata["vimAccountId"], vim_accounts, session)
self._check_valid_wim_account(indata.get("wimAccountId"), wim_accounts, session)
for in_vnf in get_iterable(indata.get("vnf")):
member_vnf_index = in_vnf["member-vnf-index"]
if vnf_member_index_to_vnfd.get(member_vnf_index):
vnfd = vnf_member_index_to_vnfd[member_vnf_index]
else:
vnfd = self._get_vnfd_from_vnf_member_index(
member_vnf_index, nsr["_id"]
)
vnf_member_index_to_vnfd[
member_vnf_index
] = vnfd # add to cache, avoiding a later look for
self._check_vnf_instantiation_params(in_vnf, vnfd)
if in_vnf.get("vimAccountId"):
self._check_valid_vim_account(
in_vnf["vimAccountId"], vim_accounts, session
)
for in_vld in get_iterable(indata.get("vld")):
self._check_valid_wim_account(
in_vld.get("wimAccountId"), wim_accounts, session
)
for vldd in get_iterable(nsd.get("virtual-link-desc")):
if in_vld["name"] == vldd["id"]:
break
else:
raise EngineException(
"Invalid parameter vld:name='{}' is not present at nsd:vld".format(
in_vld["name"]
)
)
def _get_vnfd_from_vnf_member_index(self, member_vnf_index, nsr_id):
# Obtain vnf descriptor. The vnfr is used to get the vnfd._id used for this member_vnf_index
vnfr = self.db.get_one(
"vnfrs",
{"nsr-id-ref": nsr_id, "member-vnf-index-ref": member_vnf_index},
fail_on_empty=False,
)
if not vnfr:
raise EngineException(
"Invalid parameter member_vnf_index='{}' is not one of the "
"nsd:constituent-vnfd".format(member_vnf_index)
)
# Backwards compatibility: if there is no revision, get it from the one and only VNFD entry
if "revision" in vnfr:
vnfd_revision = vnfr["vnfd-id"] + ":" + str(vnfr["revision"])
vnfd = self.db.get_one(
"vnfds_revisions", {"_id": vnfd_revision}, fail_on_empty=False
)
else:
vnfd = self.db.get_one(
"vnfds", {"_id": vnfr["vnfd-id"]}, fail_on_empty=False
)
if not vnfd:
raise EngineException(
"vnfd id={} has been deleted!. Operation cannot be performed".format(
vnfr["vnfd-id"]
)
)
return vnfd
def _check_valid_vdu(self, vnfd, vdu_id):
for vdud in get_iterable(vnfd.get("vdu")):
if vdud["id"] == vdu_id:
return vdud
else:
raise EngineException(
"Invalid parameter vdu_id='{}' not present at vnfd:vdu:id".format(
vdu_id
)
)
def _check_valid_kdu(self, vnfd, kdu_name):
for kdud in get_iterable(vnfd.get("kdu")):
if kdud["name"] == kdu_name:
return kdud
else:
raise EngineException(
"Invalid parameter kdu_name='{}' not present at vnfd:kdu:name".format(
kdu_name
)
)
def _check_vnf_instantiation_params(self, in_vnf, vnfd):
for in_vdu in get_iterable(in_vnf.get("vdu")):
for vdu in get_iterable(vnfd.get("vdu")):
if in_vdu["id"] == vdu["id"]:
for volume in get_iterable(in_vdu.get("volume")):
for volumed in get_iterable(vdu.get("virtual-storage-desc")):
if volumed == volume["name"]:
break
else:
raise EngineException(
"Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
"volume:name='{}' is not present at "
"vnfd:vdu:virtual-storage-desc list".format(
in_vnf["member-vnf-index"],
in_vdu["id"],
volume["id"],
)
)
vdu_if_names = set()
for cpd in get_iterable(vdu.get("int-cpd")):
for iface in get_iterable(
cpd.get("virtual-network-interface-requirement")
):
vdu_if_names.add(iface.get("name"))
for in_iface in get_iterable(in_vdu.get("interface")):
if in_iface["name"] in vdu_if_names:
break
else:
raise EngineException(
"Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}']:"
"int-cpd[id='{}'] is not present at vnfd:vdu:int-cpd".format(
in_vnf["member-vnf-index"],
in_vdu["id"],
in_iface["name"],
)
)
break
else:
raise EngineException(
"Invalid parameter vnf[member-vnf-index='{}']:vdu[id='{}'] is not present "
"at vnfd:vdu".format(in_vnf["member-vnf-index"], in_vdu["id"])
)
vnfd_ivlds_cpds = {
ivld.get("id"): set()
for ivld in get_iterable(vnfd.get("int-virtual-link-desc"))
}
for vdu in vnfd.get("vdu", {}):
for cpd in vdu.get("int-cpd", {}):
if cpd.get("int-virtual-link-desc"):
vnfd_ivlds_cpds[cpd.get("int-virtual-link-desc")] = cpd.get("id")
for in_ivld in get_iterable(in_vnf.get("internal-vld")):
if in_ivld.get("name") in vnfd_ivlds_cpds:
for in_icp in get_iterable(in_ivld.get("internal-connection-point")):
if in_icp["id-ref"] in vnfd_ivlds_cpds[in_ivld.get("name")]:
break
else:
raise EngineException(
"Invalid parameter vnf[member-vnf-index='{}']:internal-vld[name"
"='{}']:internal-connection-point[id-ref:'{}'] is not present at "
"vnfd:internal-vld:name/id:internal-connection-point".format(
in_vnf["member-vnf-index"],
in_ivld["name"],
in_icp["id-ref"],
)
)
else:
raise EngineException(
"Invalid parameter vnf[member-vnf-index='{}']:internal-vld:name='{}'"
" is not present at vnfd '{}'".format(
in_vnf["member-vnf-index"], in_ivld["name"], vnfd["id"]
)
)
def _check_valid_vim_account(self, vim_account, vim_accounts, session):
if vim_account in vim_accounts:
return
try:
db_filter = self._get_project_filter(session)
db_filter["_id"] = vim_account
self.db.get_one("vim_accounts", db_filter)
except Exception:
raise EngineException(
"Invalid vimAccountId='{}' not present for the project".format(
vim_account
)
)
vim_accounts.append(vim_account)
def _get_vim_account(self, vim_id: str, session):
try:
db_filter = self._get_project_filter(session)
db_filter["_id"] = vim_id
return self.db.get_one("vim_accounts", db_filter)
except Exception:
raise EngineException(
"Invalid vimAccountId='{}' not present for the project".format(vim_id)
)
def _check_valid_wim_account(self, wim_account, wim_accounts, session):
if not isinstance(wim_account, str):
return
if wim_account in wim_accounts:
return
try:
db_filter = self._get_project_filter(session)
db_filter["_id"] = wim_account
self.db.get_one("wim_accounts", db_filter)
except Exception:
raise EngineException(
"Invalid wimAccountId='{}' not present for the project".format(
wim_account
)
)
wim_accounts.append(wim_account)
def _look_for_pdu(
self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback
):
"""
Look for a free PDU in the catalog matching vdur type and interfaces. Fills vnfr.vdur with the interface
(ip_address, ...) information.
Modifies PDU _admin.usageState to 'IN_USE'
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param rollback: list with the database modifications to rollback if needed
:param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
:param vim_account: vim_account where this vnfr should be deployed
:param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
:param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
of the changed vnfr is needed
:return: List of PDU interfaces that are connected to an existing VIM network. Each item contains:
"vim-network-name": used at VIM
"name": interface name
"vnf-vld-id": internal VNFD vld where this interface is connected, or
"ns-vld-id": NSD vld where this interface is connected.
NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
"""
ifaces_forcing_vim_network = []
for vdur_index, vdur in enumerate(get_iterable(vnfr.get("vdur"))):
if not vdur.get("pdu-type"):
continue
pdu_type = vdur.get("pdu-type")
pdu_filter = self._get_project_filter(session)
pdu_filter["vim_accounts"] = vim_account
pdu_filter["type"] = pdu_type
pdu_filter["_admin.operationalState"] = "ENABLED"
pdu_filter["_admin.usageState"] = "NOT_IN_USE"
# TODO feature 1417: "shared": True,
available_pdus = self.db.get_list("pdus", pdu_filter)
for pdu in available_pdus:
# step 1 check if this pdu contains needed interfaces:
match_interfaces = True
for vdur_interface in vdur["interfaces"]:
for pdu_interface in pdu["interfaces"]:
if pdu_interface["name"] == vdur_interface["name"]:
# TODO feature 1417: match per mgmt type
break
else: # no interface found for name
match_interfaces = False
break
if match_interfaces:
break
else:
raise EngineException(
"No PDU of type={} at vim_account={} found for member_vnf_index={}, vdu={} matching interface "
"names".format(
pdu_type,
vim_account,
vnfr["member-vnf-index-ref"],
vdur["vdu-id-ref"],
)
)
# step 2. Update pdu
rollback_pdu = {
"_admin.usageState": pdu["_admin"]["usageState"],
"_admin.usage.vnfr_id": None,
"_admin.usage.nsr_id": None,
"_admin.usage.vdur": None,
}
self.db.set_one(
"pdus",
{"_id": pdu["_id"]},
{
"_admin.usageState": "IN_USE",
"_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
vdu_text = "vdur.{}".format(vdur_index)
vnfr_update_rollback[vdu_text + ".pdu-id"] = None
vnfr_update[vdu_text + ".pdu-id"] = pdu["_id"]
for iface_index, vdur_interface in enumerate(vdur["interfaces"]):
for pdu_interface in pdu["interfaces"]:
if pdu_interface["name"] == vdur_interface["name"]:
iface_text = vdu_text + ".interfaces.{}".format(iface_index)
for k, v in pdu_interface.items():
if k in (
"ip-address",
"mac-address",
): # TODO: switch-xxxxx must be inserted
vnfr_update[iface_text + ".{}".format(k)] = v
vnfr_update_rollback[
iface_text + ".{}".format(k)
] = vdur_interface.get(v)
if pdu_interface.get("ip-address"):
if vdur_interface.get(
"mgmt-interface"
) or vdur_interface.get("mgmt-vnf"):
vnfr_update_rollback[
vdu_text + ".ip-address"
] = vdur.get("ip-address")
vnfr_update[vdu_text + ".ip-address"] = pdu_interface[
"ip-address"
]
if vdur_interface.get("mgmt-vnf"):
vnfr_update_rollback["ip-address"] = vnfr.get(
"ip-address"
)
vnfr_update["ip-address"] = pdu_interface["ip-address"]
vnfr_update[vdu_text + ".ip-address"] = pdu_interface[
"ip-address"
]
if pdu_interface.get("vim-network-name") or pdu_interface.get(
"vim-network-id"
):
ifaces_forcing_vim_network.append(
{
"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[-1][
"vim-network-id"
] = pdu_interface["vim-network-id"]
if pdu_interface.get("vim-network-name"):
ifaces_forcing_vim_network[-1][
"vim-network-name"
] = pdu_interface["vim-network-name"]
break
return ifaces_forcing_vim_network
def _look_for_k8scluster(
self, session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback
):
"""
Look for an available k8scluster for all the kuds in the vnfd matching version and cni requirements.
Fills vnfr.kdur with the selected k8scluster
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param rollback: list with the database modifications to rollback if needed
:param vnfr: vnfr to be updated. It is modified with pdu interface info if pdu is found
:param vim_account: vim_account where this vnfr should be deployed
:param vnfr_update: dictionary filled by this method with changes to be done at database vnfr
:param vnfr_update_rollback: dictionary filled by this method with original content of vnfr in case a rollback
of the changed vnfr is needed
:return: List of KDU interfaces that are connected to an existing VIM network. Each item contains:
"vim-network-name": used at VIM
"name": interface name
"vnf-vld-id": internal VNFD vld where this interface is connected, or
"ns-vld-id": NSD vld where this interface is connected.
NOTE: One, and only one between 'vnf-vld-id' and 'ns-vld-id' contains a value. The other will be None
"""
ifaces_forcing_vim_network = []
if not vnfr.get("kdur"):
return ifaces_forcing_vim_network
kdu_filter = self._get_project_filter(session)
kdu_filter["vim_account"] = vim_account
# TODO kdu_filter["_admin.operationalState"] = "ENABLED"
available_k8sclusters = self.db.get_list("k8sclusters", kdu_filter)
k8s_requirements = {} # just for logging
for k8scluster in available_k8sclusters:
if not vnfr.get("k8s-cluster"):
break
# restrict by cni
if vnfr["k8s-cluster"].get("cni"):
k8s_requirements["cni"] = vnfr["k8s-cluster"]["cni"]
if not set(vnfr["k8s-cluster"]["cni"]).intersection(
k8scluster.get("cni", ())
):
continue
# restrict by version
if vnfr["k8s-cluster"].get("version"):
k8s_requirements["version"] = vnfr["k8s-cluster"]["version"]
if k8scluster.get("k8s_version") not in vnfr["k8s-cluster"]["version"]:
continue
# restrict by number of networks
if vnfr["k8s-cluster"].get("nets"):
k8s_requirements["networks"] = len(vnfr["k8s-cluster"]["nets"])
if not k8scluster.get("nets") or len(k8scluster["nets"]) < len(
vnfr["k8s-cluster"]["nets"]
):
continue
break
else:
raise EngineException(
"No k8scluster with requirements='{}' at vim_account={} found for member_vnf_index={}".format(
k8s_requirements, vim_account, vnfr["member-vnf-index-ref"]
)
)
for kdur_index, kdur in enumerate(get_iterable(vnfr.get("kdur"))):
# step 3. Fill vnfr info by filling kdur
kdu_text = "kdur.{}.".format(kdur_index)
vnfr_update_rollback[kdu_text + "k8s-cluster.id"] = None
vnfr_update[kdu_text + "k8s-cluster.id"] = k8scluster["_id"]
# step 4. Check VIM networks that forces the selected k8s_cluster
if vnfr.get("k8s-cluster") and vnfr["k8s-cluster"].get("nets"):
k8scluster_net_list = list(k8scluster.get("nets").keys())
for net_index, kdur_net in enumerate(vnfr["k8s-cluster"]["nets"]):
# get a network from k8s_cluster nets. If name matches use this, if not use other
if kdur_net["id"] in k8scluster_net_list: # name matches
vim_net = k8scluster["nets"][kdur_net["id"]]
k8scluster_net_list.remove(kdur_net["id"])
else:
vim_net = k8scluster["nets"][k8scluster_net_list[0]]
k8scluster_net_list.pop(0)
vnfr_update_rollback[
"k8s-cluster.nets.{}.vim_net".format(net_index)
] = None
vnfr_update["k8s-cluster.nets.{}.vim_net".format(net_index)] = vim_net
if vim_net and (
kdur_net.get("vnf-vld-id") or kdur_net.get("ns-vld-id")
):
ifaces_forcing_vim_network.append(
{
"name": kdur_net.get("vnf-vld-id")
or kdur_net.get("ns-vld-id"),
"vnf-vld-id": kdur_net.get("vnf-vld-id"),
"ns-vld-id": kdur_net.get("ns-vld-id"),
"vim-network-name": vim_net, # TODO can it be vim-network-id ???
}
)
# TODO check that this forcing is not incompatible with other forcing
return ifaces_forcing_vim_network
def _update_vnfrs_from_nsd(self, nsr):
step = "Getting vnf_profiles from nsd" # first step must be defined outside try
try:
nsr_id = nsr["_id"]
nsd = nsr["nsd"]
vnf_profiles = nsd.get("df", [{}])[0].get("vnf-profile", ())
vld_fixed_ip_connection_point_data = {}
step = "Getting ip-address info from vnf_profile if it exists"
for vnfp in vnf_profiles:
# Checking ip-address info from nsd.vnf_profile and storing
for vlc in vnfp.get("virtual-link-connectivity", ()):
for cpd in vlc.get("constituent-cpd-id", ()):
if cpd.get("ip-address"):
step = "Storing ip-address info"
vld_fixed_ip_connection_point_data.update(
{
vlc.get("virtual-link-profile-id")
+ "."
+ cpd.get("constituent-base-element-id"): {
"vnfd-connection-point-ref": cpd.get(
"constituent-cpd-id"
),
"ip-address": cpd.get("ip-address"),
}
}
)
# Inserting ip address to vnfr
if len(vld_fixed_ip_connection_point_data) > 0:
step = "Getting vnfrs"
vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
for item in vld_fixed_ip_connection_point_data.keys():
step = "Filtering vnfrs"
vnfr = next(
filter(
lambda vnfr: vnfr["member-vnf-index-ref"]
== item.split(".")[1],
vnfrs,
),
None,
)
if vnfr:
vnfr_update = {}
for vdur_index, vdur in enumerate(vnfr["vdur"]):
for iface_index, iface in enumerate(vdur["interfaces"]):
step = "Looking for matched interface"
if (
iface.get("external-connection-point-ref")
== vld_fixed_ip_connection_point_data[item].get(
"vnfd-connection-point-ref"
)
and iface.get("ns-vld-id") == item.split(".")[0]
):
vnfr_update_text = "vdur.{}.interfaces.{}".format(
vdur_index, iface_index
)
step = "Storing info in order to update vnfr"
vnfr_update[
vnfr_update_text + ".ip-address"
] = increment_ip_mac(
vld_fixed_ip_connection_point_data[item].get(
"ip-address"
),
vdur.get("count-index", 0),
)
vnfr_update[vnfr_update_text + ".fixed-ip"] = True
step = "updating vnfr at database"
self.db.set_one("vnfrs", {"_id": vnfr["_id"]}, vnfr_update)
except (
ValidationError,
EngineException,
DbException,
MsgException,
FsException,
) as e:
raise type(e)("{} while '{}'".format(e, step), http_code=e.http_code)
def _update_vnfrs(self, session, rollback, nsr, indata):
# get vnfr
nsr_id = nsr["_id"]
vnfrs = self.db.get_list("vnfrs", {"nsr-id-ref": nsr_id})
for vnfr in vnfrs:
vnfr_update = {}
vnfr_update_rollback = {}
member_vnf_index = vnfr["member-vnf-index-ref"]
# update vim-account-id
vim_account = indata["vimAccountId"]
vca_id = self._get_vim_account(vim_account, session).get("vca")
# check instantiate parameters
for vnf_inst_params in get_iterable(indata.get("vnf")):
if vnf_inst_params["member-vnf-index"] != member_vnf_index:
continue
if vnf_inst_params.get("vimAccountId"):
vim_account = vnf_inst_params.get("vimAccountId")
vca_id = self._get_vim_account(vim_account, session).get("vca")
# get vnf.vdu.interface instantiation params to update vnfr.vdur.interfaces ip, mac
for vdu_inst_param in get_iterable(vnf_inst_params.get("vdu")):
for vdur_index, vdur in enumerate(vnfr["vdur"]):
if vdu_inst_param["id"] != vdur["vdu-id-ref"]:
continue
for iface_inst_param in get_iterable(
vdu_inst_param.get("interface")
):
iface_index, _ = next(
i
for i in enumerate(vdur["interfaces"])
if i[1]["name"] == iface_inst_param["name"]
)
vnfr_update_text = "vdur.{}.interfaces.{}".format(
vdur_index, iface_index
)
if iface_inst_param.get("ip-address"):
vnfr_update[
vnfr_update_text + ".ip-address"
] = increment_ip_mac(
iface_inst_param.get("ip-address"),
vdur.get("count-index", 0),
)
vnfr_update[vnfr_update_text + ".fixed-ip"] = True
if iface_inst_param.get("mac-address"):
vnfr_update[
vnfr_update_text + ".mac-address"
] = increment_ip_mac(
iface_inst_param.get("mac-address"),
vdur.get("count-index", 0),
)
vnfr_update[vnfr_update_text + ".fixed-mac"] = True
if iface_inst_param.get("floating-ip-required"):
vnfr_update[
vnfr_update_text + ".floating-ip-required"
] = True
# get vnf.internal-vld.internal-conection-point instantiation params to update vnfr.vdur.interfaces
# TODO update vld with the ip-profile
for ivld_inst_param in get_iterable(
vnf_inst_params.get("internal-vld")
):
for icp_inst_param in get_iterable(
ivld_inst_param.get("internal-connection-point")
):
# look for iface
for vdur_index, vdur in enumerate(vnfr["vdur"]):
for iface_index, iface in enumerate(vdur["interfaces"]):
if (
iface.get("internal-connection-point-ref")
== icp_inst_param["id-ref"]
):
vnfr_update_text = "vdur.{}.interfaces.{}".format(
vdur_index, iface_index
)
if icp_inst_param.get("ip-address"):
vnfr_update[
vnfr_update_text + ".ip-address"
] = increment_ip_mac(
icp_inst_param.get("ip-address"),
vdur.get("count-index", 0),
)
vnfr_update[
vnfr_update_text + ".fixed-ip"
] = True
if icp_inst_param.get("mac-address"):
vnfr_update[
vnfr_update_text + ".mac-address"
] = increment_ip_mac(
icp_inst_param.get("mac-address"),
vdur.get("count-index", 0),
)
vnfr_update[
vnfr_update_text + ".fixed-mac"
] = True
break
# get ip address from instantiation parameters.vld.vnfd-connection-point-ref
for vld_inst_param in get_iterable(indata.get("vld")):
for vnfcp_inst_param in get_iterable(
vld_inst_param.get("vnfd-connection-point-ref")
):
if vnfcp_inst_param["member-vnf-index-ref"] != member_vnf_index:
continue
# look for iface
for vdur_index, vdur in enumerate(vnfr["vdur"]):
for iface_index, iface in enumerate(vdur["interfaces"]):
if (
iface.get("external-connection-point-ref")
== vnfcp_inst_param["vnfd-connection-point-ref"]
):
vnfr_update_text = "vdur.{}.interfaces.{}".format(
vdur_index, iface_index
)
if vnfcp_inst_param.get("ip-address"):
vnfr_update[
vnfr_update_text + ".ip-address"
] = increment_ip_mac(
vnfcp_inst_param.get("ip-address"),
vdur.get("count-index", 0),
)
vnfr_update[vnfr_update_text + ".fixed-ip"] = True
if vnfcp_inst_param.get("mac-address"):
vnfr_update[
vnfr_update_text + ".mac-address"
] = increment_ip_mac(
vnfcp_inst_param.get("mac-address"),
vdur.get("count-index", 0),
)
vnfr_update[vnfr_update_text + ".fixed-mac"] = True
break
vnfr_update["vim-account-id"] = vim_account
vnfr_update_rollback["vim-account-id"] = vnfr.get("vim-account-id")
if vca_id:
vnfr_update["vca-id"] = vca_id
vnfr_update_rollback["vca-id"] = vnfr.get("vca-id")
# get pdu
ifaces_forcing_vim_network = self._look_for_pdu(
session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback
)
# get kdus
ifaces_forcing_vim_network += self._look_for_k8scluster(
session, rollback, vnfr, vim_account, vnfr_update, vnfr_update_rollback
)
# update database vnfr
self.db.set_one("vnfrs", {"_id": vnfr["_id"]}, vnfr_update)
rollback.append(
{
"topic": "vnfrs",
"_id": vnfr["_id"],
"operation": "set",
"content": vnfr_update_rollback,
}
)
# Update indada in case pdu forces to use a concrete vim-network-name
# TODO check if user has already insert a vim-network-name and raises an error
if not ifaces_forcing_vim_network:
continue
for iface_info in ifaces_forcing_vim_network:
if iface_info.get("ns-vld-id"):
if "vld" not in indata:
indata["vld"] = []
indata["vld"].append(
{
key: iface_info[key]
for key in ("name", "vim-network-name", "vim-network-id")
if iface_info.get(key)
}
)
elif iface_info.get("vnf-vld-id"):
if "vnf" not in indata:
indata["vnf"] = []
indata["vnf"].append(
{
"member-vnf-index": member_vnf_index,
"internal-vld": [
{
key: iface_info[key]
for key in (
"name",
"vim-network-name",
"vim-network-id",
)
if iface_info.get(key)
}
],
}
)
@staticmethod
def _create_nslcmop(nsr_id, operation, params):
"""
Creates a ns-lcm-opp content to be stored at database.
:param nsr_id: internal id of the instance
:param operation: instantiate, terminate, scale, action, update ...
:param params: user parameters for the operation
:return: dictionary following SOL005 format
"""
now = time()
_id = str(uuid4())
nslcmop = {
"id": _id,
"_id": _id,
"operationState": "PROCESSING", # COMPLETED,PARTIALLY_COMPLETED,FAILED_TEMP,FAILED,ROLLING_BACK,ROLLED_BACK
"queuePosition": None,
"stage": None,
"errorMessage": None,
"detailedStatus": None,
"statusEnteredTime": now,
"nsInstanceId": nsr_id,
"lcmOperationType": operation,
"startTime": now,
"isAutomaticInvocation": False,
"operationParams": params,
"isCancelPending": False,
"links": {
"self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id,
"nsInstance": "/osm/nslcm/v1/ns_instances/" + nsr_id,
},
}
return nslcmop
def _get_enabled_vims(self, session):
"""
Retrieve and return VIM accounts that are accessible by current user and has state ENABLE
:param session: current session with user information
"""
db_filter = self._get_project_filter(session)
db_filter["_admin.operationalState"] = "ENABLED"
vims = self.db.get_list("vim_accounts", db_filter)
vimAccounts = []
for vim in vims:
vimAccounts.append(vim["_id"])
return vimAccounts
def new(
self,
rollback,
session,
indata=None,
kwargs=None,
headers=None,
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
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param indata: descriptor with the parameters of the operation. It must contains among others
nsInstanceId: _id of the nsr to perform the operation
operation: it can be: instantiate, terminate, action, update TODO: heal
:param kwargs: used to override the indata descriptor
:param headers: http request headers
:return: id of the nslcmops
"""
def check_if_nsr_is_not_slice_member(session, nsr_id):
nsis = None
db_filter = self._get_project_filter(session)
db_filter["_admin.nsrs-detailed-list.ANYINDEX.nsrId"] = nsr_id
nsis = self.db.get_one(
"nsis", db_filter, fail_on_empty=False, fail_on_more=False
)
if nsis:
raise EngineException(
"The NS instance {} cannot be terminated because is used by the slice {}".format(
nsr_id, nsis["_id"]
),
http_code=HTTPStatus.CONFLICT,
)
try:
# Override descriptor with query string kwargs
self._update_input_with_kwargs(indata, kwargs, yaml_format=True)
operation = indata["lcmOperationType"]
nsInstanceId = indata["nsInstanceId"]
validate_input(indata, self.operation_schema[operation])
# get ns from nsr_id
_filter = BaseTopic._get_project_filter(session)
_filter["_id"] = nsInstanceId
nsr = self.db.get_one("nsrs", _filter)
# initial checking
if operation == "terminate" and slice_object is False:
check_if_nsr_is_not_slice_member(session, nsr["_id"])
if (
not nsr["_admin"].get("nsState")
or nsr["_admin"]["nsState"] == "NOT_INSTANTIATED"
):
if operation == "terminate" and indata.get("autoremove"):
# NSR must be deleted
return (
None,
None,
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,
)
else:
if operation == "instantiate" and not session["force"]:
raise EngineException(
"ns_instance '{}' cannot be '{}' because it is already instantiated".format(
nsInstanceId, operation
),
HTTPStatus.CONFLICT,
)
self._check_ns_operation(session, nsr, operation, indata)
if indata.get("primitive_params"):
indata["primitive_params"] = json.dumps(indata["primitive_params"])
elif indata.get("additionalParamsForVnf"):
indata["additionalParamsForVnf"] = json.dumps(
indata["additionalParamsForVnf"]
)
if operation == "instantiate":
self._update_vnfrs_from_nsd(nsr)
self._update_vnfrs(session, rollback, nsr, indata)
if (operation == "update") and (indata["updateType"] == "CHANGE_VNFPKG"):
nsr_update = {}
vnfd_id = indata["changeVnfPackageData"]["vnfdId"]
vnfd = self.db.get_one("vnfds", {"_id": vnfd_id})
nsd = self.db.get_one("nsds", {"_id": nsr["nsd-id"]})
ns_request = nsr["instantiate_params"]
vnfr = self.db.get_one(
"vnfrs", {"_id": indata["changeVnfPackageData"]["vnfInstanceId"]}
)
latest_vnfd_revision = vnfd["_admin"].get("revision", 1)
vnfr_vnfd_revision = vnfr.get("revision", 1)
if latest_vnfd_revision != vnfr_vnfd_revision:
old_vnfd_id = vnfd_id + ":" + str(vnfr_vnfd_revision)
old_db_vnfd = self.db.get_one(
"vnfds_revisions", {"_id": old_vnfd_id}
)
old_sw_version = old_db_vnfd.get("software-version", "1.0")
new_sw_version = vnfd.get("software-version", "1.0")
if new_sw_version != old_sw_version:
vnf_index = vnfr["member-vnf-index-ref"]
for vdu in vnfd.get("vdu", []):
self.nsrtopic._add_shared_volumes_to_nsr(
vdu, vnfd, nsr, vnf_index, latest_vnfd_revision
)
self.nsrtopic._add_flavor_to_nsr(
vdu, vnfd, nsr, vnf_index, latest_vnfd_revision
)
sw_image_id = vdu.get("sw-image-desc")
if sw_image_id:
image_data = self.nsrtopic._get_image_data_from_vnfd(
vnfd, sw_image_id
)
self.nsrtopic._add_image_to_nsr(nsr, image_data)
for alt_image in vdu.get("alternative-sw-image-desc", ()):
image_data = self.nsrtopic._get_image_data_from_vnfd(
vnfd, alt_image
)
self.nsrtopic._add_image_to_nsr(nsr, image_data)
nsr_update["image"] = nsr["image"]
nsr_update["flavor"] = nsr["flavor"]
nsr_update["shared-volumes"] = nsr["shared-volumes"]
self.db.set_one("nsrs", {"_id": nsr["_id"]}, nsr_update)
ns_k8s_namespace = self.nsrtopic._get_ns_k8s_namespace(
nsd, ns_request, session
)
vnfr_descriptor = (
self.nsrtopic._create_vnfr_descriptor_from_vnfd(
nsd,
vnfd,
vnfd_id,
vnf_index,
nsr,
ns_request,
ns_k8s_namespace,
latest_vnfd_revision,
)
)
self._update_vnfrs_from_nsd(nsr)
vnfr_new = self.db.get_one(
"vnfrs",
{"_id": indata["changeVnfPackageData"]["vnfInstanceId"]},
)
fixed_ip_dict = {}
for vdu_record in vnfr_new.get("vdur"):
if vdu_record.get("count-index") == 0:
for interface in vdu_record.get("interfaces"):
if (
interface.get("external-connection-point-ref")
and interface.get("fixed-ip") is True
):
fixed_ip_dict[
vdu_record.get("vdu-id-ref")
] = interface.get("ip-address")
for new_vdu in vnfr_descriptor.get("vdur"):
if fixed_ip_dict.get(new_vdu.get("vdu-id-ref")):
for new_interface in new_vdu.get("interfaces"):
if new_interface.get(
"external-connection-point-ref"
):
new_interface["ip-address"] = fixed_ip_dict.get(
new_vdu.get("vdu-id-ref")
)
new_interface["fixed-ip"] = True
indata["newVdur"] = vnfr_descriptor["vdur"]
nslcmop_desc = self._create_nslcmop(nsInstanceId, operation, indata)
_id = nslcmop_desc["_id"]
nsName = nsr.get("name")
self.format_on_new(
nslcmop_desc, session["project_id"], make_public=session["public"]
)
if indata.get("placement-engine"):
# Save valid vim accounts in lcm operation descriptor
nslcmop_desc["operationParams"][
"validVimAccounts"
] = self._get_enabled_vims(session)
self.db.create("nslcmops", nslcmop_desc)
rollback.append({"topic": "nslcmops", "_id": _id})
if not slice_object:
self.msg.write("ns", operation, nslcmop_desc)
return _id, nsName, None
except ValidationError as e: # TODO remove try Except, it is captured at nbi.py
raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
# except DbException as e:
# raise EngineException("Cannot get ns_instance '{}': {}".format(e), HTTPStatus.NOT_FOUND)
def cancel(self, rollback, session, indata=None, kwargs=None, headers=None):
validate_input(indata, self.operation_schema["cancel"])
# Override descriptor with query string kwargs
self._update_input_with_kwargs(indata, kwargs, yaml_format=True)
nsLcmOpOccId = indata["nsLcmOpOccId"]
cancelMode = indata["cancelMode"]
# get nslcmop from nsLcmOpOccId
_filter = BaseTopic._get_project_filter(session)
_filter["_id"] = nsLcmOpOccId
nslcmop = self.db.get_one("nslcmops", _filter)
# Fail is this is not an ongoing nslcmop
if nslcmop.get("operationState") not in [
"STARTING",
"PROCESSING",
"ROLLING_BACK",
]:
raise EngineException(
"Operation is not in STARTING, PROCESSING or ROLLING_BACK state",
http_code=HTTPStatus.CONFLICT,
)
nsInstanceId = nslcmop["nsInstanceId"]
update_dict = {
"isCancelPending": True,
"cancelMode": cancelMode,
}
self.db.set_one(
"nslcmops", q_filter=_filter, update_dict=update_dict, fail_on_empty=False
)
data = {
"_id": nsLcmOpOccId,
"nsInstanceId": nsInstanceId,
"cancelMode": cancelMode,
}
self.msg.write("nslcmops", "cancel", data)
def delete(self, session, _id, dry_run=False, not_send_msg=None):
raise EngineException(
"Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
def edit(self, session, _id, indata=None, kwargs=None, content=None):
raise EngineException(
"Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
class NsiTopic(BaseTopic):
topic = "nsis"
topic_msg = "nsi"
quota_name = "slice_instances"
def __init__(self, db, fs, msg, auth):
BaseTopic.__init__(self, db, fs, msg, auth)
self.nsrTopic = NsrTopic(db, fs, msg, auth)
@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_conflict_on_del(self, session, _id, db_content):
"""
Check that NSI is not instantiated
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param _id: nsi internal id
:param db_content: The database content of the _id
:return: None or raises EngineException with the conflict
"""
if session["force"]:
return
nsi = db_content
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_extra(self, session, _id, db_content, not_send_msg=None):
"""
Deletes associated nsilcmops from database. Deletes associated filesystem.
Set usageState of nst
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
:param _id: server internal id
:param db_content: The database content of the descriptor
:param not_send_msg: To not send message (False) or store content (list) instead
:return: None if ok or raises EngineException with the problem
"""
# Deleting the nsrs belonging to nsir
nsir = db_content
for nsrs_detailed_item in nsir["_admin"]["nsrs-detailed-list"]:
nsr_id = nsrs_detailed_item["nsrId"]
if nsrs_detailed_item.get("shared"):
_filter = {
"_admin.nsrs-detailed-list.ANYINDEX.shared": True,
"_admin.nsrs-detailed-list.ANYINDEX.nsrId": nsr_id,
"_id.ne": nsir["_id"],
}
nsi = self.db.get_one(
"nsis", _filter, fail_on_empty=False, fail_on_more=False
)
if nsi: # last one using nsr
continue
try:
self.nsrTopic.delete(
session, nsr_id, dry_run=False, not_send_msg=not_send_msg
)
except (DbException, EngineException) as e:
if e.http_code == HTTPStatus.NOT_FOUND:
pass
else:
raise
# delete related nsilcmops database entries
self.db.del_list("nsilcmops", {"netsliceInstanceId": _id})
# Check and set used NST usage state
nsir_admin = nsir.get("_admin")
if nsir_admin and nsir_admin.get("nst-id"):
# check if used by another NSI
nsis_list = self.db.get_one(
"nsis",
{"nst-id": nsir_admin["nst-id"]},
fail_on_empty=False,
fail_on_more=False,
)
if not nsis_list:
self.db.set_one(
"nsts",
{"_id": nsir_admin["nst-id"]},
{"_admin.usageState": "NOT_IN_USE"},
)
def new(self, rollback, session, indata=None, kwargs=None, headers=None):
"""
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 "username", "admin", "force", "public", "project_id", "set_project"
:param indata: params to be used for the nsir
:param kwargs: used to override the indata descriptor
:param headers: http request headers
:return: the _id of nsi descriptor created at database
"""
step = "checking quotas" # first step must be defined outside try
try:
self.check_quota(session)
step = ""
slice_request = self._remove_envelop(indata)
# Override descriptor with query string kwargs
self._update_input_with_kwargs(slice_request, kwargs)
slice_request = self._validate_input_new(slice_request, session["force"])
# look for nstd
step = "getting nstd id='{}' from database".format(
slice_request.get("nstId")
)
_filter = self._get_project_filter(session)
_filter["_id"] = slice_request["nstId"]
nstd = self.db.get_one("nsts", _filter)
# check NST is not disabled
step = "checking NST operationalState"
if nstd["_admin"]["operationalState"] == "DISABLED":
raise EngineException(
"nst with id '{}' is DISABLED, and thus cannot be used to create a netslice "
"instance".format(slice_request["nstId"]),
http_code=HTTPStatus.CONFLICT,
)
del _filter["_id"]
# check NSD is not disabled
step = "checking operationalState"
if nstd["_admin"]["operationalState"] == "DISABLED":
raise EngineException(
"nst with id '{}' is DISABLED, and thus cannot be used to create "
"a network slice".format(slice_request["nstId"]),
http_code=HTTPStatus.CONFLICT,
)
nstd.pop("_admin", None)
nstd_id = 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=session["public"]
)
nsi_descriptor["_admin"]["nsiState"] = "NOT_INSTANTIATED"
nsi_descriptor["_admin"]["netslice-subnet"] = None
nsi_descriptor["_admin"]["deployed"] = {}
nsi_descriptor["_admin"]["deployed"]["RO"] = []
nsi_descriptor["_admin"]["nst-id"] = nstd_id
# Creating netslice-vld for the RO.
step = "creating netslice-vld at database"
# Building the vlds list to be deployed
# From netslice descriptors, creating the initial list
nsi_vlds = []
for netslice_vlds in get_iterable(nstd.get("netslice-vld")):
# Getting template Instantiation parameters from NST
nsi_vld = deepcopy(netslice_vlds)
nsi_vld["shared-nsrs-list"] = []
nsi_vld["vimAccountId"] = slice_request["vimAccountId"]
nsi_vlds.append(nsi_vld)
nsi_descriptor["_admin"]["netslice-vld"] = nsi_vlds
# Creating netslice-subnet_record.
needed_nsds = {}
services = []
# Updating the nstd with the nsd["_id"] associated to the nss -> services list
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
_filter["id"] = nsd_id
nsd = self.db.get_one(
"nsds", _filter, fail_on_empty=True, fail_on_more=True
)
del _filter["id"]
nsd.pop("_admin")
needed_nsds[nsd_id] = nsd
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"]
)
# 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:
# Check if the netslice-subnet is shared and if it is share if the nss exists
_id_nsr = None
indata_ns = {}
# Is the nss shared and instantiated?
_filter["_admin.nsrs-detailed-list.ANYINDEX.shared"] = True
_filter["_admin.nsrs-detailed-list.ANYINDEX.nsd-id"] = service[
"nsd-ref"
]
_filter["_admin.nsrs-detailed-list.ANYINDEX.nss-id"] = service["id"]
nsi = self.db.get_one(
"nsis", _filter, fail_on_empty=False, fail_on_more=False
)
if nsi and service.get("is-shared-nss"):
nsrs_detailed_list = nsi["_admin"]["nsrs-detailed-list"]
for nsrs_detailed_item in nsrs_detailed_list:
if nsrs_detailed_item["nsd-id"] == service["nsd-ref"]:
if nsrs_detailed_item["nss-id"] == service["id"]:
_id_nsr = nsrs_detailed_item["nsrId"]
break
for netslice_subnet in nsi["_admin"]["netslice-subnet"]:
if netslice_subnet["nss-id"] == service["id"]:
indata_ns = netslice_subnet
break
else:
indata_ns = {}
if service.get("instantiation-parameters"):
indata_ns = deepcopy(service["instantiation-parameters"])
# del service["instantiation-parameters"]
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"]
if slice_request.get("ssh_keys"):
indata_ns["ssh_keys"] = slice_request.get("ssh_keys")
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)
break
# Creates Nsr objects
_id_nsr, _ = self.nsrTopic.new(
rollback, session, indata_ns, kwargs, headers
)
nsrs_item = {
"nsrId": _id_nsr,
"shared": service.get("is-shared-nss"),
"nsd-id": service["nsd-ref"],
"nss-id": service["id"],
"nslcmop_instantiate": None,
}
indata_ns["nss-id"] = service["id"]
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
self.db.set_one(
"nsts", {"_id": slice_request["nstId"]}, {"_admin.usageState": "IN_USE"}
)
# Creating the entry in the database
self.db.create("nsis", nsi_descriptor)
rollback.append({"topic": "nsis", "_id": nsi_id})
return nsi_id, None
except ValidationError as e:
raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
except Exception as e: # TODO remove try Except, it is captured at nbi.py
# self.logger.exception(
# "Exception {} at NsiTopic.new()".format(e), exc_info=True
# )
raise EngineException("Error {}: {}".format(step, e))
def edit(self, session, _id, indata=None, kwargs=None, 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, auth):
BaseTopic.__init__(self, db, fs, msg, auth)
self.nsi_NsLcmOpTopic = NsLcmOpTopic(self.db, self.fs, self.msg, self.auth)
def _check_nsi_operation(self, session, nsir, operation, indata):
"""
Check that user has enter right parameters for the operation
:param session: contains "username", "admin", "force", "public", "project_id", "set_project"
: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:
_filter = self._get_project_filter(session)
_filter["id"] = nsd_id
nsds[nsd_id] = self.db.get_one("nsds", _filter)
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,
"netsliceInstanceId": "/osm/nsilcm/v1/netslice_instances/"
+ netsliceInstanceId,
},
}
return nsilcmop
def add_shared_nsr_2vld(self, nsir, nsr_item):
for nst_sb_item in nsir["network-slice-template"].get("netslice-subnet"):
if nst_sb_item.get("is-shared-nss"):
for admin_subnet_item in nsir["_admin"].get("netslice-subnet"):
if admin_subnet_item["nss-id"] == nst_sb_item["id"]:
for admin_vld_item in nsir["_admin"].get("netslice-vld"):
for admin_vld_nss_cp_ref_item in admin_vld_item[
"nss-connection-point-ref"
]:
if (
admin_subnet_item["nss-id"]
== admin_vld_nss_cp_ref_item["nss-ref"]
):
if (
not nsr_item["nsrId"]
in admin_vld_item["shared-nsrs-list"]
):
admin_vld_item["shared-nsrs-list"].append(
nsr_item["nsrId"]
)
break
# self.db.set_one("nsis", {"_id": nsir["_id"]}, nsir)
self.db.set_one(
"nsis",
{"_id": nsir["_id"]},
{"_admin.netslice-vld": nsir["_admin"].get("netslice-vld")},
)
def new(self, rollback, session, indata=None, kwargs=None, headers=None):
"""
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 "username", "admin", "force", "public", "project_id", "set_project"
:param indata: descriptor with the parameters of the operation. It must contains among others
netsliceInstanceId: _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
:return: id of the nslcmops
"""
try:
# Override descriptor with query string kwargs
self._update_input_with_kwargs(indata, kwargs)
operation = indata["lcmOperationType"]
netsliceInstanceId = indata["netsliceInstanceId"]
validate_input(indata, self.operation_schema[operation])
# get nsi from netsliceInstanceId
_filter = self._get_project_filter(session)
_filter["_id"] = netsliceInstanceId
nsir = self.db.get_one("nsis", _filter)
# logging_prefix = "nsi={} {} ".format(netsliceInstanceId, operation)
del _filter["_id"]
# 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,
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(
netsliceInstanceId, operation
),
HTTPStatus.CONFLICT,
)
else:
if operation == "instantiate" and not session["force"]:
raise EngineException(
"netslice_instance '{}' cannot be '{}' because it is already instantiated".format(
netsliceInstanceId, operation
),
HTTPStatus.CONFLICT,
)
# Creating all the NS_operation (nslcmop)
# Get service list from db
nsrs_list = nsir["_admin"]["nsrs-detailed-list"]
nslcmops = []
# nslcmops_item = None
for index, nsr_item in enumerate(nsrs_list):
nsr_id = nsr_item["nsrId"]
if nsr_item.get("shared"):
_filter["_admin.nsrs-detailed-list.ANYINDEX.shared"] = True
_filter["_admin.nsrs-detailed-list.ANYINDEX.nsrId"] = nsr_id
_filter[
"_admin.nsrs-detailed-list.ANYINDEX.nslcmop_instantiate.ne"
] = None
_filter["_id.ne"] = netsliceInstanceId
nsi = self.db.get_one(
"nsis", _filter, fail_on_empty=False, fail_on_more=False
)
if operation == "terminate":
_update = {
"_admin.nsrs-detailed-list.{}.nslcmop_instantiate".format(
index
): None
}
self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
if (
nsi
): # other nsi is using this nsr and it needs this nsr instantiated
continue # do not create nsilcmop
else: # instantiate
# looks the first nsi fulfilling the conditions but not being the current NSIR
if nsi:
nsi_nsr_item = next(
n
for n in nsi["_admin"]["nsrs-detailed-list"]
if n["nsrId"] == nsr_id
and n["shared"]
and n["nslcmop_instantiate"]
)
self.add_shared_nsr_2vld(nsir, nsr_item)
nslcmops.append(nsi_nsr_item["nslcmop_instantiate"])
_update = {
"_admin.nsrs-detailed-list.{}".format(
index
): nsi_nsr_item
}
self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
# continue to not create nslcmop since nsrs is shared and nsrs was created
continue
else:
self.add_shared_nsr_2vld(nsir, nsr_item)
# create operation
try:
indata_ns = {
"lcmOperationType": operation,
"nsInstanceId": nsr_id,
# Including netslice_id in the ns instantiate Operation
"netsliceInstanceId": netsliceInstanceId,
}
if operation == "instantiate":
service = self.db.get_one("nsrs", {"_id": nsr_id})
indata_ns.update(service["instantiate_params"])
# Creating NS_LCM_OP with the flag slice_object=True to not trigger the service instantiation
# message via kafka bus
nslcmop, _, _ = self.nsi_NsLcmOpTopic.new(
rollback, session, indata_ns, None, headers, slice_object=True
)
nslcmops.append(nslcmop)
if operation == "instantiate":
_update = {
"_admin.nsrs-detailed-list.{}.nslcmop_instantiate".format(
index
): nslcmop
}
self.db.set_one("nsis", {"_id": nsir["_id"]}, _update)
except (DbException, EngineException) as e:
if e.http_code == HTTPStatus.NOT_FOUND:
pass
else:
raise
# Creates nsilcmop
indata["nslcmops_ids"] = nslcmops
self._check_nsi_operation(session, nsir, operation, indata)
nsilcmop_desc = self._create_nsilcmop(
session, netsliceInstanceId, operation, indata
)
self.format_on_new(
nsilcmop_desc, session["project_id"], make_public=session["public"]
)
_id = self.db.create("nsilcmops", nsilcmop_desc)
rollback.append({"topic": "nsilcmops", "_id": _id})
self.msg.write("nsi", operation, nsilcmop_desc)
return _id, None
except ValidationError as e:
raise EngineException(e, HTTPStatus.UNPROCESSABLE_ENTITY)
def delete(self, session, _id, dry_run=False, not_send_msg=None):
raise EngineException(
"Method delete called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)
def edit(self, session, _id, indata=None, kwargs=None, content=None):
raise EngineException(
"Method edit called directly", HTTPStatus.INTERNAL_SERVER_ERROR
)