| # -*- coding: utf-8 -*- |
| |
| # Copyright 2018 Whitestack, LLC |
| # ************************************************************* |
| |
| # This file is part of OSM Monitoring module |
| # All Rights Reserved to Whitestack, LLC |
| |
| # 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. |
| |
| # For those usages not covered by the Apache License, Version 2.0 please |
| # contact: bdiaz@whitestack.com or glavado@whitestack.com |
| ## |
| import datetime |
| import json |
| import logging |
| import time |
| import uuid |
| |
| from osm_policy_module.common.common_db_client import CommonDbClient |
| from osm_policy_module.common.message_bus_client import MessageBusClient |
| from osm_policy_module.core.config import Config |
| |
| log = logging.getLogger(__name__) |
| |
| |
| class LcmClient: |
| """ |
| Client to communicate with LCM through the message bus. |
| """ |
| |
| def __init__(self, config: Config): |
| self.db_client = CommonDbClient(config) |
| self.msg_bus = MessageBusClient(config) |
| |
| async def scale( |
| self, nsr_id: str, scaling_group_name: str, vnf_member_index: str, action: str |
| ): |
| """ |
| Sends scaling action to LCM through the message bus. |
| |
| :param nsr_id: Network service record id |
| :param scaling_group_name: Scaling group name |
| :param vnf_member_index: VNF member index |
| :param action: Scaling action to be executed. Valid values: scale_in, scale_out |
| :return: |
| """ |
| log.debug( |
| "scale %s %s %s %s", nsr_id, scaling_group_name, vnf_member_index, action |
| ) |
| nsr = self.db_client.get_nsr(nsr_id) |
| nslcmop = self._generate_nslcmop( |
| nsr_id, scaling_group_name, vnf_member_index, action, nsr["_admin"] |
| ) |
| self.db_client.create_nslcmop(nslcmop) |
| log.debug("Sending scale action message: %s", json.dumps(nslcmop)) |
| await self.msg_bus.aiowrite("ns", "scale", nslcmop) |
| |
| def _generate_nslcmop( |
| self, |
| nsr_id: str, |
| scaling_group_name: str, |
| vnf_member_index: str, |
| action: str, |
| admin: dict, |
| ): |
| """ |
| Builds scaling nslcmop. |
| |
| :param nsr_id: Network service record id |
| :param scaling_group_name: Scaling group name |
| :param vnf_member_index: VNF member index |
| :param action: Scaling action to be executed. Valid values: scale_in, scale_out |
| :param admin: Dict corresponding to the _admin section of the nsr. Required keys: projects_read, projects_write. |
| :return: |
| """ |
| log.debug( |
| "_generate_nslcmop %s %s %s %s %s", |
| nsr_id, |
| scaling_group_name, |
| vnf_member_index, |
| action, |
| admin, |
| ) |
| _id = str(uuid.uuid4()) |
| now = time.time() |
| params = { |
| "scaleType": "SCALE_VNF", |
| "scaleVnfData": { |
| "scaleVnfType": action.upper(), |
| "scaleByStepData": { |
| "scaling-group-descriptor": scaling_group_name, |
| "member-vnf-index": vnf_member_index, |
| }, |
| }, |
| "scaleTime": "{}Z".format(datetime.datetime.utcnow().isoformat()), |
| } |
| |
| nslcmop = { |
| "id": _id, |
| "_id": _id, |
| "operationState": "PROCESSING", |
| "statusEnteredTime": now, |
| "nsInstanceId": nsr_id, |
| "lcmOperationType": "scale", |
| "startTime": now, |
| "isAutomaticInvocation": True, |
| "operationParams": params, |
| "isCancelPending": False, |
| "links": { |
| "self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id, |
| "nsInstance": "/osm/nslcm/v1/ns_instances/" + nsr_id, |
| }, |
| "_admin": { |
| "projects_read": admin["projects_read"], |
| "projects_write": admin["projects_write"], |
| }, |
| } |
| return nslcmop |
| |
| async def heal( |
| self, |
| nsr_id: str, |
| vnfinstance_id: str, |
| vdur_name: str, |
| vdu_id: str, |
| vnf_member_index: str, |
| heal_type: str, |
| day1: bool, |
| count_index: int, |
| ): |
| """ |
| Sends healing action to LCM through the message bus. |
| |
| param nsr_id: Network service record id |
| param vdu_id: Scaling vdu id |
| param vnf_member_index: VNF member index |
| param heal_type: healing action to be executed. Valid values: restart,respawn |
| param day1: To run day1 operations |
| param cause: cause of healing |
| return |
| """ |
| log.debug( |
| "heal %s %s %s %s %s %s %s %s", |
| nsr_id, |
| vnfinstance_id, |
| vdur_name, |
| vdu_id, |
| vnf_member_index, |
| heal_type, |
| day1, |
| count_index, |
| ) |
| nsr = self.db_client.get_nsr(nsr_id) |
| nslcmop = self._generate_nslcmop_heal( |
| nsr_id, |
| vnfinstance_id, |
| vdur_name, |
| vdu_id, |
| vnf_member_index, |
| heal_type, |
| day1, |
| count_index, |
| nsr["_admin"], |
| ) |
| self.db_client.create_nslcmop(nslcmop) |
| log.debug("Sending heal action message: %s", json.dumps(nslcmop)) |
| await self.msg_bus.aiowrite("ns", "heal", nslcmop) |
| |
| def _generate_nslcmop_heal( |
| self, |
| nsr_id: str, |
| vnfinstance_id: str, |
| vdur_name: str, |
| vdu_id: str, |
| vnf_member_index: str, |
| heal_type: str, |
| day1: bool, |
| count_index: int, |
| admin: dict, |
| ): |
| """ |
| Builds healing nslcmop. |
| param nsr_id: Network service record id |
| param vnf_member_index: VNF member index |
| param action: healing action to be executed. Valid values: restart, respawn |
| param admin: Dict corresponding to the _admin section of the nsr. Required keys: projects_read, projects_write. |
| return: |
| """ |
| log.debug( |
| "_generate_nslcmop_heal %s %s %s %s %s %s %s %s %s", |
| nsr_id, |
| vnfinstance_id, |
| vdur_name, |
| vdu_id, |
| vnf_member_index, |
| heal_type, |
| day1, |
| count_index, |
| admin, |
| ) |
| _id = str(uuid.uuid4()) |
| now = time.time() |
| params = { |
| "lcmOperationType": "heal", |
| "nsInstanceId": nsr_id, |
| "healVnfData": [ |
| { |
| "vnfInstanceId": vnfinstance_id, |
| "cause": "default", |
| "additionalParams": { |
| "run-day1": day1, |
| "vdu": [ |
| { |
| "run-day1": day1, |
| "count-index": count_index, |
| "vdu-id": vdu_id, |
| } |
| ], |
| }, |
| } |
| ], |
| } |
| |
| nslcmop = { |
| "id": _id, |
| "_id": _id, |
| "operationState": "PROCESSING", |
| "statusEnteredTime": now, |
| "nsInstanceId": nsr_id, |
| "member-vnf-index": vnf_member_index, |
| "lcmOperationType": "heal", |
| "startTime": now, |
| "location": "default", |
| "isAutomaticInvocation": True, |
| "operationParams": params, |
| "isCancelPending": False, |
| "links": { |
| "self": "/osm/nslcm/v1/ns_lcm_op_occs/" + _id, |
| "nsInstance": "/osm/nslcm/v1/ns_instances/" + nsr_id, |
| }, |
| "_admin": { |
| "projects_read": admin["projects_read"], |
| "projects_write": admin["projects_write"], |
| }, |
| } |
| return nslcmop |