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# -*- coding: utf-8 -*- |
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# Copyright 2018 Whitestack, LLC |
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# ************************************************************* |
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# This file is part of OSM Monitoring module |
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# All Rights Reserved to Whitestack, LLC |
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# Licensed under the Apache License, Version 2.0 (the "License"); you may |
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# not use this file except in compliance with the License. You may obtain |
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# a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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# License for the specific language governing permissions and limitations |
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# under the License. |
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# For those usages not covered by the Apache License, Version 2.0 please |
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# contact: bdiaz@whitestack.com or glavado@whitestack.com |
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## |
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import asyncio |
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import logging |
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from pathlib import Path |
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import os |
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import peewee |
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from osm_policy_module.alarming.service import AlarmingService |
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from osm_policy_module.autoscaling.service import AutoscalingService |
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from osm_policy_module.healing.service import HealingService |
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from osm_policy_module.common.common_db_client import CommonDbClient |
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from osm_policy_module.common.message_bus_client import MessageBusClient |
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from osm_policy_module.core.config import Config |
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log = logging.getLogger(__name__) |
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ALLOWED_KAFKA_KEYS = [ |
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"instantiated", |
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"scaled", |
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"terminated", |
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"notify_alarm", |
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"policy_updated", |
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"vnf_terminated", |
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] |
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class PolicyModuleAgent: |
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def __init__(self, config: Config): |
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self.conf = config |
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self.msg_bus = MessageBusClient(config) |
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self.db_client = CommonDbClient(config) |
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self.autoscaling_service = AutoscalingService(config) |
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self.alarming_service = AlarmingService(config) |
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self.healing_service = HealingService(config) |
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def run(self): |
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asyncio.run(self.start()) |
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async def start(self): |
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Path("/tmp/osm_pol_agent_health_flag").touch() |
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topics = ["ns", "alarm_response"] |
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await self.msg_bus.aioread(topics, self._process_msg) |
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log.critical("Exiting...") |
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if os.path.exists("/tmp/osm_pol_agent_health_flag"): |
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os.remove("/tmp/osm_pol_agent_health_flag") |
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async def _process_msg(self, topic, key, msg): |
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Path("/tmp/osm_pol_agent_health_flag").touch() |
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log.debug("_process_msg topic=%s key=%s msg=%s", topic, key, msg) |
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try: |
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if key in ALLOWED_KAFKA_KEYS: |
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if key == "instantiated": |
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await self._handle_instantiated(msg) |
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if key == "scaled": |
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await self._handle_scaled(msg) |
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if key == "terminated": |
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await self._handle_terminated(msg) |
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if key == "notify_alarm": |
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await self._handle_alarm_notification(msg) |
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if key == "policy_updated": |
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await self._handle_policy_update(msg) |
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if key == "vnf_terminated": |
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await self._handle_vnf_terminated(msg) |
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else: |
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log.debug("Key %s is not in ALLOWED_KAFKA_KEYS", key) |
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except peewee.PeeweeException: |
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log.exception("Database error consuming message: ") |
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raise |
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except Exception: |
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log.exception("Error consuming message: ") |
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async def _handle_alarm_notification(self, content): |
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log.debug("_handle_alarm_notification: %s", content) |
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alarm_uuid = content["notify_details"]["alarm_uuid"] |
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status = content["notify_details"]["status"] |
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await self.autoscaling_service.handle_alarm(alarm_uuid, status) |
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await self.alarming_service.handle_alarm(alarm_uuid, status, content) |
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await self.healing_service.handle_alarm(alarm_uuid, status) |
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async def _handle_instantiated(self, content): |
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log.debug("_handle_instantiated: %s", content) |
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nslcmop_id = content["nslcmop_id"] |
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nslcmop = self.db_client.get_nslcmop(nslcmop_id) |
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if ( |
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nslcmop["operationState"] == "COMPLETED" |
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or nslcmop["operationState"] == "PARTIALLY_COMPLETED" |
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): |
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nsr_id = nslcmop["nsInstanceId"] |
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log.info("Configuring nsr_id: %s", nsr_id) |
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await self.autoscaling_service.configure_scaling_groups(nsr_id) |
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await self.alarming_service.configure_vnf_alarms(nsr_id) |
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await self.healing_service.configure_healing_alarms(nsr_id) |
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else: |
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log.info( |
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"Network_service is not in COMPLETED or PARTIALLY_COMPLETED state. " |
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"Current state is %s. Skipping...", |
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nslcmop["operationState"], |
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) |
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async def _handle_scaled(self, content): |
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log.debug("_handle_scaled: %s", content) |
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nslcmop_id = content["nslcmop_id"] |
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nslcmop = self.db_client.get_nslcmop(nslcmop_id) |
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if ( |
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nslcmop["operationState"] == "COMPLETED" |
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or nslcmop["operationState"] == "PARTIALLY_COMPLETED" |
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): |
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nsr_id = nslcmop["nsInstanceId"] |
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log.info("Configuring scaled service with nsr_id: %s", nsr_id) |
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await self.autoscaling_service.configure_scaling_groups(nsr_id) |
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await self.autoscaling_service.delete_orphaned_alarms(nsr_id) |
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await self.alarming_service.configure_vnf_alarms(nsr_id) |
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await self.healing_service.configure_healing_alarms(nsr_id) |
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await self.healing_service.delete_orphaned_healing_alarms(nsr_id) |
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else: |
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log.debug( |
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"Network service is not in COMPLETED or PARTIALLY_COMPLETED state. " |
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"Current state is %s. Skipping...", |
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nslcmop["operationState"], |
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) |
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async def _handle_terminated(self, content): |
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log.debug("_handle_deleted: %s", content) |
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nsr_id = content["nsr_id"] |
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if ( |
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content["operationState"] == "COMPLETED" |
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or content["operationState"] == "PARTIALLY_COMPLETED" |
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): |
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log.info( |
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"Deleting scaling groups and alarms for network autoscaling_service with nsr_id: %s", |
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nsr_id, |
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) |
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await self.autoscaling_service.delete_scaling_groups(nsr_id) |
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await self.alarming_service.delete_vnf_alarms(nsr_id) |
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await self.healing_service.delete_healing_alarms(nsr_id) |
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else: |
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log.info( |
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"Network service is not in COMPLETED or PARTIALLY_COMPLETED state. " |
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"Current state is %s. Skipping...", |
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content["operationState"], |
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) |
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async def _handle_policy_update(self, content): |
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log.info("_handle_policy_update: %s", content) |
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nsr_id = content["nsr_id"] |
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vnf_member_index = content["vnf_member_index"] |
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if ( |
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content["operationState"] == "COMPLETED" |
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or content["operationState"] == "PARTIALLY_COMPLETED" |
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): |
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log.info( |
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"Updating policies of VNF with nsr_id: %s and vnf-member-index: %s" |
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% (nsr_id, vnf_member_index) |
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) |
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await self.autoscaling_service.delete_scaling_groups( |
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nsr_id, vnf_member_index |
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) |
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await self.alarming_service.delete_vnf_alarms(nsr_id, vnf_member_index) |
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await self.autoscaling_service.configure_scaling_groups( |
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nsr_id, vnf_member_index |
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) |
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await self.alarming_service.configure_vnf_alarms(nsr_id, vnf_member_index) |
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else: |
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log.info( |
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"Network service is not in COMPLETED or PARTIALLY_COMPLETED state. " |
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"Current state is %s. Skipping...", |
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content["operationState"], |
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) |
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async def _handle_vnf_terminated(self, content): |
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nsr_id = content["nsr_id"] |
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vnf_member_index = content["vnf_member_index"] |
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if ( |
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content["operationState"] == "COMPLETED" |
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or content["operationState"] == "PARTIALLY_COMPLETED" |
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): |
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log.info( |
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"Deleting policies of VNF with nsr_id: %s and vnf-member-index: %s" |
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% (nsr_id, vnf_member_index) |
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) |
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await self.autoscaling_service.delete_scaling_groups( |
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nsr_id, vnf_member_index |
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) |
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await self.alarming_service.delete_vnf_alarms(nsr_id, vnf_member_index) |
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else: |
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log.info( |
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"Network service is not in COMPLETED or PARTIALLY_COMPLETED state. " |
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"Current state is %s. Skipping...", |
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content["operationState"], |
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) |
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