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196 lines
10 KiB
196 lines
10 KiB
# Copyright (C) 2005-2025 Splunk Inc. All Rights Reserved.
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from . import itoa_change_handler
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from itsi.objects.itsi_service import ItsiService
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from itsi.objects.itsi_sandbox_service import ItsiSandboxService
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class ServiceDependencyHandler(itoa_change_handler.ItoaChangeHandler):
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"""
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Change handler that will update dependent services information with services_depends_on_me field
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"""
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def deferred(self, change, transaction_id=None):
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"""
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@type change: dict
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@param change: dict which hold job information
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{ _key: system generated key
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create_time: epoch time of the CUD event that occurred
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changed_object_key: [key(s) of the changed object(s)]
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changed_object_type: String identifier of the object type in the changed_object
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change_type: The type of change that occurred
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object_type: 'refresh_job'
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change_detail:
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}
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@type transaction_id: basestring
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@param transaction_id: transaction id for instrumentation purposes.
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@return: True if all operations were successful, False otherwise
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@rtype: Boolean
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"""
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if change.get('changed_object_type') not in ['service', 'sandbox_service']:
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raise Exception('Expected changed_object_type to be "service" or sandbox_service')
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if change.get('change_type') != 'service_dependency_changed':
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raise Exception('Expected change_type to be "service_dependency_changed"')
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if change.get('changed_object_type') == 'service':
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service_interface = ItsiService(self.session_key, 'nobody')
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else:
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service_interface = ItsiSandboxService(self.session_key, 'nobody')
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updated_services = {}
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change_detail = change.get("change_detail", {})
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owner = 'nobody'
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services_depends_on_update = change_detail.get('services_depends_on', {})
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services_depending_on_me_update = change_detail.get('services_depending_on_me', {})
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if len(services_depends_on_update) != 0:
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# Bulk request all of the services
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service_keys = []
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for cd in services_depends_on_update.values():
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for ad in cd['added_dependencies']:
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service_keys.append(ad['target_service'])
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for rd in cd['removed_dependencies']:
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service_keys.append(rd['target_service'])
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if not service_keys:
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return True
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filter_data = {
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'$or': [{'_key': service_key} for service_key in service_keys]
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}
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services = service_interface.get_bulk(owner,
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filter_data=filter_data,
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req_source="ServiceDependencyHandler",
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transaction_id=transaction_id)
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# Translate to dict at first
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target_services = {s["_key"]: s for s in services}
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for service_key, detail in services_depends_on_update.items():
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added_dependencies = detail['added_dependencies']
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removed_dependencies = detail['removed_dependencies']
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for added_dependency in added_dependencies:
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target_service_key = added_dependency['target_service']
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# service could have been updated previously, fetch it from updated_services if available
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if target_service_key in updated_services:
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target_service = updated_services.get(target_service_key)
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# otherwise fetch from kvstore
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else:
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target_service = target_services.get(target_service_key)
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if target_service is None:
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self.logger.warning("Attempted to update missing service=%s", target_service_key)
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continue
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new_depending_kpis = added_dependency['depending_kpis']
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existing_dependencies =\
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target_service.get('services_depending_on_me') if target_service is not None else None
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matched_dependencies = []
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if existing_dependencies is not None:
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matched_dependencies = [d for d in existing_dependencies if d.get('serviceid') == service_key]
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if len(matched_dependencies) > 0:
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# should only be 1
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if len(matched_dependencies) > 1:
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self.logger.info('Service "%s" is referenced more than once in the service dependencies.', service_key)
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matched_dependencies[0].get('kpis_depending_on', []).extend(new_depending_kpis)
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matched_dependencies[0]['kpis_depending_on'] = list(set(
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matched_dependencies[0]['kpis_depending_on']
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))
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else:
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if existing_dependencies is None:
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existing_dependencies = []
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existing_dependencies.append({
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'serviceid': service_key,
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'kpis_depending_on': list(set(new_depending_kpis))
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})
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# Patching the call, kept on getting a crash in this part of the code
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if target_service is not None:
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target_service['services_depending_on_me'] = existing_dependencies
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updated_services[target_service_key] = target_service
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self.logger.debug('removed dependencies: ' + str(removed_dependencies))
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for removed_dependency in removed_dependencies:
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target_service_key = removed_dependency['target_service']
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self.logger.debug('removed dependency key: ' + target_service_key)
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if target_service_key in updated_services:
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target_service = updated_services.get(target_service_key)
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else:
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target_service = target_services.get(target_service_key)
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depending_kpis_to_remove = removed_dependency['depending_kpis']
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existing_dependencies = target_service.get('services_depending_on_me') if target_service is not None else None
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matched_dependencies = []
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if existing_dependencies is not None:
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matched_dependencies = [d for d in existing_dependencies if d.get('serviceid') == service_key]
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if len(matched_dependencies) > 0:
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existing_kpis = matched_dependencies[0].get('kpis_depending_on')
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existing_kpis = [x for x in existing_kpis if x not in depending_kpis_to_remove]
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# if no KPI dependencies remaining for this service, remove this service as a dependency
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if len(existing_kpis) == 0:
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existing_dependencies = [d for d in existing_dependencies if d.get('serviceid') != service_key]
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target_service['services_depending_on_me'] = existing_dependencies
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# otherwise just remove this KPI
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else:
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self.logger.debug('existing kpis: ' + str(existing_kpis))
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matched_dependencies[0]['kpis_depending_on'] = existing_kpis
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updated_services[target_service_key] = target_service
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else:
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self.logger.error('Could not find service "' + service_key + '" in target service dependency')
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# update services for the case of moving service between sec_groups and need to break
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# services_depends_on based on services_depending_on_me change
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if len(services_depending_on_me_update) != 0:
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# Bulk request all of the services
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service_keys = []
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for cd in services_depending_on_me_update.values():
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service_keys.extend(cd)
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if not service_keys:
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return True
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filter_data = {
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'$or': [{'_key': service_key} for service_key in service_keys]
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}
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services = service_interface.get_bulk(owner,
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filter_data=filter_data,
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req_source="ServiceDependencyHandler",
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transaction_id=transaction_id)
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# Translate to dict at first
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target_services = {s["_key"]: s for s in services}
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for service_key, removed_dependencies in services_depending_on_me_update.items():
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self.logger.debug('removed dependencies: ' + str(removed_dependencies))
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for target_service_key in removed_dependencies:
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self.logger.debug('removed dependency key: ' + target_service_key)
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if target_service_key in updated_services:
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target_service = updated_services.get(target_service_key)
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else:
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target_service = target_services.get(target_service_key)
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existing_dependencies = target_service.get('services_depends_on') if target_service is not None else None
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matched_dependencies = []
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if existing_dependencies is not None:
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matched_dependencies = [d for d in existing_dependencies if d.get('serviceid') == service_key]
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if len(matched_dependencies) > 0:
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existing_dependencies = [d for d in existing_dependencies if d.get('serviceid') != service_key]
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target_service['services_depends_on'] = existing_dependencies
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updated_services[target_service_key] = target_service
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else:
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self.logger.error('Could not find service "' + service_key + '" in target service dependency')
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if len(updated_services) == 0:
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return True # Noop
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try:
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service_interface.batch_save_backend('nobody', list(updated_services.values()), transaction_id=transaction_id)
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return True
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except Exception as e:
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self.logger.exception(e)
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return False
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