| 1 |
|
# -*- coding: utf-8 -*- |
| 2 |
|
# pylint: disable=no-member |
| 3 |
|
|
| 4 |
|
# Copyright 2018 Whitestack, LLC |
| 5 |
|
# ************************************************************* |
| 6 |
|
|
| 7 |
|
# This file is part of OSM Monitoring module |
| 8 |
|
# All Rights Reserved to Whitestack, LLC |
| 9 |
|
|
| 10 |
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 11 |
|
# not use this file except in compliance with the License. You may obtain |
| 12 |
|
# a copy of the License at |
| 13 |
|
|
| 14 |
|
# http://www.apache.org/licenses/LICENSE-2.0 |
| 15 |
|
|
| 16 |
|
# Unless required by applicable law or agreed to in writing, software |
| 17 |
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 18 |
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| 19 |
|
# License for the specific language governing permissions and limitations |
| 20 |
|
# under the License. |
| 21 |
|
|
| 22 |
|
# For those usages not covered by the Apache License, Version 2.0 please |
| 23 |
|
# contact: bdiaz@whitestack.com or glavado@whitestack.com |
| 24 |
|
## |
| 25 |
1 |
import asyncio |
| 26 |
1 |
import datetime |
| 27 |
1 |
import json |
| 28 |
1 |
import logging |
| 29 |
|
|
| 30 |
1 |
from osm_policy_module.common.common_db_client import CommonDbClient |
| 31 |
1 |
from osm_policy_module.common.lcm_client import LcmClient |
| 32 |
1 |
from osm_policy_module.common.mon_client import MonClient |
| 33 |
1 |
from osm_policy_module.core import database |
| 34 |
1 |
from osm_policy_module.core.config import Config |
| 35 |
1 |
from osm_policy_module.core.database import ( |
| 36 |
|
ScalingGroup, |
| 37 |
|
ScalingAlarm, |
| 38 |
|
ScalingPolicy, |
| 39 |
|
ScalingCriteria, |
| 40 |
|
ScalingAlarmRepository, |
| 41 |
|
ScalingGroupRepository, |
| 42 |
|
ScalingPolicyRepository, |
| 43 |
|
ScalingCriteriaRepository, |
| 44 |
|
) |
| 45 |
1 |
from osm_policy_module.core.exceptions import VdurNotFound |
| 46 |
|
|
| 47 |
1 |
log = logging.getLogger(__name__) |
| 48 |
|
|
| 49 |
|
|
| 50 |
1 |
class AutoscalingService: |
| 51 |
1 |
def __init__(self, config: Config, loop=None): |
| 52 |
1 |
self.conf = config |
| 53 |
1 |
if not loop: |
| 54 |
1 |
loop = asyncio.get_event_loop() |
| 55 |
1 |
self.loop = loop |
| 56 |
1 |
self.db_client = CommonDbClient(config) |
| 57 |
1 |
self.mon_client = MonClient(config, loop=self.loop) |
| 58 |
1 |
self.lcm_client = LcmClient(config, loop=self.loop) |
| 59 |
|
|
| 60 |
1 |
async def configure_scaling_groups(self, nsr_id: str): |
| 61 |
|
""" |
| 62 |
|
Configures scaling groups for a network service. Creates records in DB. Creates alarms in MON. |
| 63 |
|
:param nsr_id: Network service record id |
| 64 |
|
:return: |
| 65 |
|
""" |
| 66 |
1 |
log.info( |
| 67 |
|
"Configuring scaling groups for network service with nsr_id: %s", nsr_id |
| 68 |
|
) |
| 69 |
1 |
alarms_created = [] |
| 70 |
1 |
database.db.connect() |
| 71 |
1 |
try: |
| 72 |
1 |
with database.db.atomic() as tx: |
| 73 |
1 |
try: |
| 74 |
1 |
vnfrs = self.db_client.get_vnfrs(nsr_id) |
| 75 |
1 |
for vnfr in vnfrs: |
| 76 |
1 |
log.debug("Processing vnfr: %s", vnfr) |
| 77 |
1 |
vnfd = self.db_client.get_vnfd(vnfr["vnfd-id"]) |
| 78 |
|
# TODO: Change for multiple DF support |
| 79 |
1 |
df = vnfd.get("df", [{}])[0] |
| 80 |
1 |
if "scaling-aspect" not in df: |
| 81 |
0 |
log.debug("No scaling aspect present in vnfd") |
| 82 |
0 |
continue |
| 83 |
|
# TODO: Change for multiple instantiation levels support |
| 84 |
1 |
scaling_aspects = df["scaling-aspect"] |
| 85 |
1 |
all_vnfd_monitoring_params = ( |
| 86 |
|
self._get_all_vnfd_monitoring_params(vnfd) |
| 87 |
|
) |
| 88 |
1 |
for scaling_aspect in scaling_aspects: |
| 89 |
1 |
scaling_group_record = self._get_or_create_scaling_group( |
| 90 |
|
nsr_id, vnfr["member-vnf-index-ref"], scaling_aspect |
| 91 |
|
) |
| 92 |
1 |
vdurs = self._get_monitored_vdurs( |
| 93 |
|
scaling_aspect, vnfr["vdur"] |
| 94 |
|
) |
| 95 |
1 |
for scaling_policy in scaling_aspect.get( |
| 96 |
|
"scaling-policy", () |
| 97 |
|
): |
| 98 |
1 |
if scaling_policy["scaling-type"] != "automatic": |
| 99 |
0 |
continue |
| 100 |
1 |
scaling_policy_record = ( |
| 101 |
|
self._get_or_create_scaling_policy( |
| 102 |
|
nsr_id, scaling_policy, scaling_group_record |
| 103 |
|
) |
| 104 |
|
) |
| 105 |
|
|
| 106 |
1 |
for scaling_criteria in scaling_policy[ |
| 107 |
|
"scaling-criteria" |
| 108 |
|
]: |
| 109 |
1 |
scaling_criteria_record = ( |
| 110 |
|
self._get_or_create_scaling_criteria( |
| 111 |
|
nsr_id, |
| 112 |
|
scaling_criteria, |
| 113 |
|
scaling_policy_record, |
| 114 |
|
) |
| 115 |
|
) |
| 116 |
1 |
monitoring_param_ref = scaling_criteria.get( |
| 117 |
|
"vnf-monitoring-param-ref" |
| 118 |
|
) |
| 119 |
1 |
vnf_monitoring_param = all_vnfd_monitoring_params[ |
| 120 |
|
monitoring_param_ref |
| 121 |
|
] |
| 122 |
|
|
| 123 |
1 |
for vdur in vdurs: |
| 124 |
1 |
vdu_id = vdur["vdu-id-ref"] |
| 125 |
1 |
log.debug("Creating alarm for vdur %s ", vdur) |
| 126 |
1 |
try: |
| 127 |
1 |
ScalingAlarmRepository.get( |
| 128 |
|
ScalingAlarm.vdu_name == vdur["name"], |
| 129 |
|
ScalingCriteria.name |
| 130 |
|
== scaling_criteria["name"], |
| 131 |
|
ScalingPolicy.name |
| 132 |
|
== scaling_policy["name"], |
| 133 |
|
ScalingGroup.nsr_id == nsr_id, |
| 134 |
|
join_classes=[ |
| 135 |
|
ScalingCriteria, |
| 136 |
|
ScalingPolicy, |
| 137 |
|
ScalingGroup, |
| 138 |
|
], |
| 139 |
|
) |
| 140 |
0 |
log.debug( |
| 141 |
|
"vdu %s already has an alarm configured", |
| 142 |
|
vdur["name"], |
| 143 |
|
) |
| 144 |
0 |
continue |
| 145 |
1 |
except ScalingAlarm.DoesNotExist: |
| 146 |
1 |
pass |
| 147 |
1 |
metric_name = self._get_metric_name( |
| 148 |
|
vnf_monitoring_param |
| 149 |
|
) |
| 150 |
|
|
| 151 |
1 |
db_nsr = self.db_client.get_nsr(nsr_id) |
| 152 |
1 |
nb_scale_op = 0 |
| 153 |
1 |
if db_nsr["_admin"].get("scaling-group"): |
| 154 |
0 |
db_nsr_admin = db_nsr["_admin"][ |
| 155 |
|
"scaling-group" |
| 156 |
|
] |
| 157 |
0 |
for ( |
| 158 |
|
admin_scale_index, |
| 159 |
|
admin_scale_info, |
| 160 |
|
) in enumerate(db_nsr_admin): |
| 161 |
0 |
if ( |
| 162 |
|
admin_scale_info["name"] |
| 163 |
|
== scaling_aspect["name"] |
| 164 |
|
): |
| 165 |
0 |
nb_scale_op = admin_scale_info.get( |
| 166 |
|
"nb-scale-op", 0 |
| 167 |
|
) |
| 168 |
0 |
break |
| 169 |
1 |
min_instance_count = 1 |
| 170 |
1 |
for vdu_profile in df.get("vdu-profile", ()): |
| 171 |
1 |
if vdu_profile.get("id") == vdu_id: |
| 172 |
1 |
min_instance_count = int( |
| 173 |
|
vdu_profile.get( |
| 174 |
|
"min-number-of-instances ", 1 |
| 175 |
|
) |
| 176 |
|
) |
| 177 |
1 |
break |
| 178 |
1 |
if nb_scale_op >= min_instance_count: |
| 179 |
0 |
alarm_uuid = ( |
| 180 |
|
await self.mon_client.create_alarm( |
| 181 |
|
metric_name=metric_name, |
| 182 |
|
ns_id=nsr_id, |
| 183 |
|
vdu_name=vdur["name"], |
| 184 |
|
vnf_member_index=vnfr[ |
| 185 |
|
"member-vnf-index-ref" |
| 186 |
|
], |
| 187 |
|
threshold=scaling_criteria[ |
| 188 |
|
"scale-in-threshold" |
| 189 |
|
], |
| 190 |
|
operation=scaling_criteria[ |
| 191 |
|
"scale-in-relational-operation" |
| 192 |
|
], |
| 193 |
|
action="scale_in" |
| 194 |
|
) |
| 195 |
|
) |
| 196 |
0 |
alarm = ScalingAlarmRepository.create( |
| 197 |
|
alarm_uuid=alarm_uuid, |
| 198 |
|
action="scale_in", |
| 199 |
|
vnf_member_index=vnfr[ |
| 200 |
|
"member-vnf-index-ref" |
| 201 |
|
], |
| 202 |
|
vdu_name=vdur["name"], |
| 203 |
|
scaling_criteria=scaling_criteria_record, |
| 204 |
|
) |
| 205 |
0 |
alarms_created.append(alarm) |
| 206 |
1 |
alarm_uuid = await self.mon_client.create_alarm( |
| 207 |
|
metric_name=metric_name, |
| 208 |
|
ns_id=nsr_id, |
| 209 |
|
vdu_name=vdur["name"], |
| 210 |
|
vnf_member_index=vnfr[ |
| 211 |
|
"member-vnf-index-ref" |
| 212 |
|
], |
| 213 |
|
threshold=scaling_criteria[ |
| 214 |
|
"scale-out-threshold" |
| 215 |
|
], |
| 216 |
|
operation=scaling_criteria[ |
| 217 |
|
"scale-out-relational-operation" |
| 218 |
|
], |
| 219 |
|
action="scale_out", |
| 220 |
|
) |
| 221 |
1 |
alarm = ScalingAlarmRepository.create( |
| 222 |
|
alarm_uuid=alarm_uuid, |
| 223 |
|
action="scale_out", |
| 224 |
|
vnf_member_index=vnfr[ |
| 225 |
|
"member-vnf-index-ref" |
| 226 |
|
], |
| 227 |
|
vdu_name=vdur["name"], |
| 228 |
|
scaling_criteria=scaling_criteria_record, |
| 229 |
|
) |
| 230 |
1 |
alarms_created.append(alarm) |
| 231 |
|
|
| 232 |
0 |
except Exception as e: |
| 233 |
0 |
log.exception("Error configuring scaling groups:") |
| 234 |
0 |
tx.rollback() |
| 235 |
0 |
if len(alarms_created) > 0: |
| 236 |
0 |
log.info("Cleaning alarm resources in MON") |
| 237 |
0 |
for alarm in alarms_created: |
| 238 |
0 |
await self.mon_client.delete_alarm( |
| 239 |
|
alarm.scaling_criteria.scaling_policy.scaling_group.nsr_id, |
| 240 |
|
alarm.vnf_member_index, |
| 241 |
|
alarm.vdu_name, |
| 242 |
|
alarm.alarm_uuid, |
| 243 |
|
) |
| 244 |
0 |
raise e |
| 245 |
|
finally: |
| 246 |
1 |
database.db.close() |
| 247 |
|
|
| 248 |
1 |
async def delete_scaling_groups(self, nsr_id: str): |
| 249 |
0 |
log.debug("Deleting scaling groups for network service %s", nsr_id) |
| 250 |
0 |
database.db.connect() |
| 251 |
0 |
try: |
| 252 |
0 |
with database.db.atomic() as tx: |
| 253 |
0 |
try: |
| 254 |
0 |
for scaling_group in ScalingGroupRepository.list( |
| 255 |
|
ScalingGroup.nsr_id == nsr_id |
| 256 |
|
): |
| 257 |
0 |
for scaling_policy in scaling_group.scaling_policies: |
| 258 |
0 |
for scaling_criteria in scaling_policy.scaling_criterias: |
| 259 |
0 |
for alarm in scaling_criteria.scaling_alarms: |
| 260 |
0 |
try: |
| 261 |
0 |
await self.mon_client.delete_alarm( |
| 262 |
|
alarm.scaling_criteria.scaling_policy.scaling_group.nsr_id, |
| 263 |
|
alarm.vnf_member_index, |
| 264 |
|
alarm.vdu_name, |
| 265 |
|
alarm.alarm_uuid, |
| 266 |
|
) |
| 267 |
0 |
except ValueError: |
| 268 |
0 |
log.exception( |
| 269 |
|
"Error deleting alarm in MON %s", |
| 270 |
|
alarm.alarm_uuid, |
| 271 |
|
) |
| 272 |
0 |
alarm.delete_instance() |
| 273 |
0 |
scaling_criteria.delete_instance() |
| 274 |
0 |
scaling_policy.delete_instance() |
| 275 |
0 |
scaling_group.delete_instance() |
| 276 |
|
|
| 277 |
0 |
except Exception as e: |
| 278 |
0 |
log.exception("Error deleting scaling groups and alarms:") |
| 279 |
0 |
tx.rollback() |
| 280 |
0 |
raise e |
| 281 |
|
finally: |
| 282 |
0 |
database.db.close() |
| 283 |
|
|
| 284 |
1 |
async def delete_orphaned_alarms(self, nsr_id): |
| 285 |
0 |
log.info("Deleting orphaned scaling alarms for network service %s", nsr_id) |
| 286 |
0 |
database.db.connect() |
| 287 |
0 |
try: |
| 288 |
0 |
with database.db.atomic() as tx: |
| 289 |
0 |
try: |
| 290 |
0 |
for scaling_group in ScalingGroupRepository.list( |
| 291 |
|
ScalingGroup.nsr_id == nsr_id |
| 292 |
|
): |
| 293 |
0 |
for scaling_policy in scaling_group.scaling_policies: |
| 294 |
0 |
for scaling_criteria in scaling_policy.scaling_criterias: |
| 295 |
0 |
for alarm in scaling_criteria.scaling_alarms: |
| 296 |
0 |
try: |
| 297 |
0 |
self.db_client.get_vdur( |
| 298 |
|
nsr_id, |
| 299 |
|
alarm.vnf_member_index, |
| 300 |
|
alarm.vdu_name, |
| 301 |
|
) |
| 302 |
0 |
except VdurNotFound: |
| 303 |
0 |
log.debug( |
| 304 |
|
"Deleting orphaned scaling alarm %s", |
| 305 |
|
alarm.alarm_uuid, |
| 306 |
|
) |
| 307 |
0 |
try: |
| 308 |
0 |
await self.mon_client.delete_alarm( |
| 309 |
|
alarm.scaling_criteria.scaling_policy.scaling_group.nsr_id, |
| 310 |
|
alarm.vnf_member_index, |
| 311 |
|
alarm.vdu_name, |
| 312 |
|
alarm.alarm_uuid, |
| 313 |
|
) |
| 314 |
0 |
except ValueError: |
| 315 |
0 |
log.exception( |
| 316 |
|
"Error deleting alarm in MON %s", |
| 317 |
|
alarm.alarm_uuid, |
| 318 |
|
) |
| 319 |
0 |
alarm.delete_instance() |
| 320 |
|
|
| 321 |
0 |
except Exception as e: |
| 322 |
0 |
log.exception("Error deleting orphaned alarms:") |
| 323 |
0 |
tx.rollback() |
| 324 |
0 |
raise e |
| 325 |
|
finally: |
| 326 |
0 |
database.db.close() |
| 327 |
|
|
| 328 |
1 |
async def handle_alarm(self, alarm_uuid: str, status: str): |
| 329 |
0 |
await self.update_alarm_status(alarm_uuid, status) |
| 330 |
0 |
await self.evaluate_policy(alarm_uuid) |
| 331 |
|
|
| 332 |
1 |
async def update_alarm_status(self, alarm_uuid: str, status: str): |
| 333 |
1 |
database.db.connect() |
| 334 |
1 |
try: |
| 335 |
1 |
with database.db.atomic(): |
| 336 |
1 |
alarm = ScalingAlarmRepository.get( |
| 337 |
|
ScalingAlarm.alarm_uuid == alarm_uuid |
| 338 |
|
) |
| 339 |
1 |
alarm.last_status = status |
| 340 |
1 |
alarm.save() |
| 341 |
0 |
except ScalingAlarm.DoesNotExist: |
| 342 |
0 |
log.debug( |
| 343 |
|
"There is no autoscaling action configured for alarm %s.", alarm_uuid |
| 344 |
|
) |
| 345 |
|
finally: |
| 346 |
1 |
database.db.close() |
| 347 |
|
|
| 348 |
1 |
async def evaluate_policy(self, alarm_uuid): |
| 349 |
1 |
database.db.connect() |
| 350 |
1 |
try: |
| 351 |
1 |
with database.db.atomic(): |
| 352 |
1 |
alarm = ScalingAlarmRepository.get( |
| 353 |
|
ScalingAlarm.alarm_uuid == alarm_uuid |
| 354 |
|
) |
| 355 |
1 |
vnf_member_index = alarm.vnf_member_index |
| 356 |
1 |
action = alarm.action |
| 357 |
1 |
scaling_policy = alarm.scaling_criteria.scaling_policy |
| 358 |
1 |
if not scaling_policy.enabled: |
| 359 |
1 |
return |
| 360 |
1 |
if action == "scale_in": |
| 361 |
1 |
operation = scaling_policy.scale_in_operation |
| 362 |
1 |
elif action == "scale_out": |
| 363 |
1 |
operation = scaling_policy.scale_out_operation |
| 364 |
|
else: |
| 365 |
0 |
raise Exception("Unknown alarm action {}".format(alarm.action)) |
| 366 |
1 |
alarms = ScalingAlarmRepository.list( |
| 367 |
|
ScalingAlarm.scaling_criteria == alarm.scaling_criteria, |
| 368 |
|
ScalingAlarm.action == alarm.action, |
| 369 |
|
ScalingAlarm.vnf_member_index == vnf_member_index, |
| 370 |
|
ScalingAlarm.vdu_name == alarm.vdu_name, |
| 371 |
|
) |
| 372 |
1 |
statuses = [] |
| 373 |
1 |
for alarm in alarms: |
| 374 |
1 |
statuses.append(alarm.last_status) |
| 375 |
1 |
if (operation == "AND" and set(statuses) == {"alarm"}) or ( |
| 376 |
|
operation == "OR" and "alarm" in statuses |
| 377 |
|
): |
| 378 |
1 |
delta = datetime.datetime.now() - scaling_policy.last_scale |
| 379 |
1 |
if delta.total_seconds() > scaling_policy.cooldown_time: |
| 380 |
1 |
log.info( |
| 381 |
|
"Sending %s action message for ns: %s", |
| 382 |
|
alarm.action, |
| 383 |
|
scaling_policy.scaling_group.nsr_id, |
| 384 |
|
) |
| 385 |
1 |
await self.lcm_client.scale( |
| 386 |
|
scaling_policy.scaling_group.nsr_id, |
| 387 |
|
scaling_policy.scaling_group.name, |
| 388 |
|
vnf_member_index, |
| 389 |
|
action, |
| 390 |
|
) |
| 391 |
1 |
scaling_policy.last_scale = datetime.datetime.now() |
| 392 |
1 |
scaling_policy.save() |
| 393 |
|
|
| 394 |
0 |
except ScalingAlarm.DoesNotExist: |
| 395 |
0 |
log.debug( |
| 396 |
|
"There is no autoscaling action configured for alarm %s.", alarm_uuid |
| 397 |
|
) |
| 398 |
|
finally: |
| 399 |
1 |
database.db.close() |
| 400 |
|
|
| 401 |
1 |
def _get_all_vnfd_monitoring_params(self, vnfd): |
| 402 |
1 |
all_monitoring_params = {} |
| 403 |
1 |
for ivld in vnfd.get("int-virtual-link-desc", ()): |
| 404 |
0 |
for mp in ivld.get("monitoring-parameters", ()): |
| 405 |
0 |
all_monitoring_params[mp.get("id")] = mp |
| 406 |
|
|
| 407 |
1 |
for vdu in vnfd.get("vdu", ()): |
| 408 |
1 |
for mp in vdu.get("monitoring-parameter", ()): |
| 409 |
1 |
all_monitoring_params[mp.get("id")] = mp |
| 410 |
|
|
| 411 |
1 |
for df in vnfd.get("df", ()): |
| 412 |
1 |
for mp in df.get("monitoring-parameter", ()): |
| 413 |
0 |
all_monitoring_params[mp.get("id")] = mp |
| 414 |
|
|
| 415 |
1 |
return all_monitoring_params |
| 416 |
|
|
| 417 |
1 |
def _get_or_create_scaling_group( |
| 418 |
|
self, nsr_id: str, vnf_member_index: str, scaling_aspect: dict |
| 419 |
|
): |
| 420 |
1 |
try: |
| 421 |
1 |
scaling_group_record = ScalingGroupRepository.get( |
| 422 |
|
ScalingGroup.nsr_id == nsr_id, |
| 423 |
|
ScalingGroup.vnf_member_index == vnf_member_index, |
| 424 |
|
ScalingGroup.name == scaling_aspect["name"], |
| 425 |
|
) |
| 426 |
0 |
log.debug("Found existing scaling group record in DB...") |
| 427 |
1 |
except ScalingGroup.DoesNotExist: |
| 428 |
1 |
log.debug("Creating scaling group record in DB...") |
| 429 |
1 |
scaling_group_record = ScalingGroupRepository.create( |
| 430 |
|
nsr_id=nsr_id, |
| 431 |
|
vnf_member_index=vnf_member_index, |
| 432 |
|
name=scaling_aspect["name"], |
| 433 |
|
content=json.dumps(scaling_aspect), |
| 434 |
|
) |
| 435 |
1 |
log.debug( |
| 436 |
|
"Created scaling group record in DB : nsr_id=%s, vnf_member_index=%s, name=%s", |
| 437 |
|
scaling_group_record.nsr_id, |
| 438 |
|
scaling_group_record.vnf_member_index, |
| 439 |
|
scaling_group_record.name, |
| 440 |
|
) |
| 441 |
1 |
return scaling_group_record |
| 442 |
|
|
| 443 |
1 |
def _get_or_create_scaling_policy( |
| 444 |
|
self, nsr_id: str, scaling_policy: dict, scaling_group_record: ScalingGroup |
| 445 |
|
): |
| 446 |
1 |
try: |
| 447 |
1 |
scaling_policy_record = ScalingPolicyRepository.get( |
| 448 |
|
ScalingPolicy.name == scaling_policy["name"], |
| 449 |
|
ScalingGroup.id == scaling_group_record.id, |
| 450 |
|
join_classes=[ScalingGroup], |
| 451 |
|
) |
| 452 |
0 |
log.debug("Found existing scaling policy record in DB...") |
| 453 |
1 |
except ScalingPolicy.DoesNotExist: |
| 454 |
1 |
log.debug("Creating scaling policy record in DB...") |
| 455 |
1 |
scaling_policy_record = ScalingPolicyRepository.create( |
| 456 |
|
nsr_id=nsr_id, |
| 457 |
|
name=scaling_policy["name"], |
| 458 |
|
cooldown_time=scaling_policy["cooldown-time"], |
| 459 |
|
scaling_group=scaling_group_record, |
| 460 |
|
) |
| 461 |
1 |
if "scale-in-operation-type" in scaling_policy: |
| 462 |
0 |
scaling_policy_record.scale_in_operation = scaling_policy[ |
| 463 |
|
"scale-in-operation-type" |
| 464 |
|
] |
| 465 |
1 |
if "scale-out-operation-type" in scaling_policy: |
| 466 |
0 |
scaling_policy_record.scale_out_operation = scaling_policy[ |
| 467 |
|
"scale-out-operation-type" |
| 468 |
|
] |
| 469 |
1 |
if "enabled" in scaling_policy: |
| 470 |
0 |
scaling_policy_record.enabled = scaling_policy["enabled"] |
| 471 |
1 |
scaling_policy_record.save() |
| 472 |
1 |
log.debug( |
| 473 |
|
"Created scaling policy record in DB : name=%s, scaling_group.name=%s", |
| 474 |
|
scaling_policy_record.name, |
| 475 |
|
scaling_policy_record.scaling_group.name, |
| 476 |
|
) |
| 477 |
1 |
return scaling_policy_record |
| 478 |
|
|
| 479 |
1 |
def _get_or_create_scaling_criteria( |
| 480 |
|
self, nsr_id: str, scaling_criteria: dict, scaling_policy_record: ScalingPolicy |
| 481 |
|
): |
| 482 |
1 |
try: |
| 483 |
1 |
scaling_criteria_record = ScalingCriteriaRepository.get( |
| 484 |
|
ScalingPolicy.id == scaling_policy_record.id, |
| 485 |
|
ScalingCriteria.name == scaling_criteria["name"], |
| 486 |
|
join_classes=[ScalingPolicy], |
| 487 |
|
) |
| 488 |
0 |
log.debug("Found existing scaling criteria record in DB...") |
| 489 |
1 |
except ScalingCriteria.DoesNotExist: |
| 490 |
1 |
log.debug("Creating scaling criteria record in DB...") |
| 491 |
1 |
scaling_criteria_record = ScalingCriteriaRepository.create( |
| 492 |
|
nsr_id=nsr_id, |
| 493 |
|
name=scaling_criteria["name"], |
| 494 |
|
scaling_policy=scaling_policy_record, |
| 495 |
|
) |
| 496 |
1 |
log.debug( |
| 497 |
|
"Created scaling criteria record in DB : name=%s, scaling_policy.name=%s", |
| 498 |
|
scaling_criteria_record.name, |
| 499 |
|
scaling_criteria_record.scaling_policy.name, |
| 500 |
|
) |
| 501 |
1 |
return scaling_criteria_record |
| 502 |
|
|
| 503 |
1 |
def _get_monitored_vdurs(self, scaling_aspect: dict, vdurs): |
| 504 |
1 |
all_monitored_vdus = set() |
| 505 |
1 |
for delta in scaling_aspect.get("aspect-delta-details", {}).get("deltas", ()): |
| 506 |
1 |
for vdu_delta in delta.get("vdu-delta", ()): |
| 507 |
1 |
all_monitored_vdus.add(vdu_delta.get("id")) |
| 508 |
|
|
| 509 |
1 |
monitored_vdurs = list( |
| 510 |
|
filter(lambda vdur: vdur["vdu-id-ref"] in all_monitored_vdus, vdurs) |
| 511 |
|
) |
| 512 |
|
|
| 513 |
1 |
if not monitored_vdurs: |
| 514 |
0 |
log.warning( |
| 515 |
|
"Scaling criteria is referring to a vnf-monitoring-param that does not " |
| 516 |
|
"contain a reference to a vdu or vnf metric." |
| 517 |
|
) |
| 518 |
1 |
return monitored_vdurs |
| 519 |
|
|
| 520 |
1 |
def _get_metric_name(self, vnf_monitoring_param: dict): |
| 521 |
1 |
if "performance-metric" in vnf_monitoring_param: |
| 522 |
1 |
return vnf_monitoring_param["performance-metric"] |
| 523 |
0 |
raise ValueError( |
| 524 |
|
"No metric name found for vnf_monitoring_param %s" |
| 525 |
|
% vnf_monitoring_param["id"] |
| 526 |
|
) |
![[Jenkins]](/jenkins/static/c06f6c43/images/jenkins-header-logo-v2.svg){kind=logo}
