mirror of https://github.com/openspug/spug
87 lines
3.9 KiB
Python
87 lines
3.9 KiB
Python
# Copyright: (c) OpenSpug Organization. https://github.com/openspug/spug
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# Copyright: (c) <spug.dev@gmail.com>
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# Released under the AGPL-3.0 License.
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from apscheduler.schedulers.background import BackgroundScheduler
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from apscheduler.executors.pool import ThreadPoolExecutor
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from apscheduler.triggers.interval import IntervalTrigger
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from apscheduler.events import EVENT_SCHEDULER_SHUTDOWN, EVENT_JOB_MAX_INSTANCES, EVENT_JOB_ERROR
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from django_redis import get_redis_connection
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from django.utils.functional import SimpleLazyObject
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from django.db import close_old_connections
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from apps.monitor.models import Detection
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from apps.notify.models import Notify
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from django.conf import settings
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from libs import AttrDict, human_datetime
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from datetime import datetime, timedelta
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from random import randint
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import logging
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import json
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MONITOR_WORKER_KEY = settings.MONITOR_WORKER_KEY
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class Scheduler:
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timezone = settings.TIME_ZONE
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def __init__(self):
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self.scheduler = BackgroundScheduler(timezone=self.timezone, executors={'default': ThreadPoolExecutor(30)})
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self.scheduler.add_listener(
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self._handle_event,
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EVENT_SCHEDULER_SHUTDOWN | EVENT_JOB_ERROR | EVENT_JOB_MAX_INSTANCES
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)
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def _handle_event(self, event):
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close_old_connections()
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obj = SimpleLazyObject(lambda: Detection.objects.filter(pk=event.job_id).first())
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if event.code == EVENT_SCHEDULER_SHUTDOWN:
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logging.warning(f'EVENT_SCHEDULER_SHUTDOWN: {event}')
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Notify.make_notify('monitor', '1', '调度器已关闭', '调度器意外关闭，你可以在github上提交issue', False)
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elif event.code == EVENT_JOB_MAX_INSTANCES:
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logging.warning(f'EVENT_JOB_MAX_INSTANCES: {event}')
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Notify.make_notify('monitor', '1', f'{obj.name} - 达到调度实例上限', '一般为上个周期的执行任务还未结束，请增加调度间隔或减少任务执行耗时')
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elif event.code == EVENT_JOB_ERROR:
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logging.warning(f'EVENT_JOB_ERROR: job_id {event.job_id} exception: {event.exception}')
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Notify.make_notify('monitor', '1', f'{obj.name} - 执行异常', f'{event.exception}')
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def _dispatch(self, task_id, tp, targets, extra, threshold, quiet):
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close_old_connections()
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Detection.objects.filter(pk=task_id).update(latest_run_time=human_datetime())
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rds_cli = get_redis_connection()
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for t in json.loads(targets):
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rds_cli.rpush(MONITOR_WORKER_KEY, json.dumps([task_id, tp, t, extra, threshold, quiet]))
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def _init(self):
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self.scheduler.start()
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for item in Detection.objects.filter(is_active=True):
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now = datetime.now()
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trigger = IntervalTrigger(minutes=int(item.rate), timezone=self.timezone)
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self.scheduler.add_job(
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self._dispatch,
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trigger,
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id=str(item.id),
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args=(item.id, item.type, item.targets, item.extra, item.threshold, item.quiet),
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next_run_time=now + timedelta(seconds=randint(0, 60))
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)
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def run(self):
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rds_cli = get_redis_connection()
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self._init()
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rds_cli.delete(settings.MONITOR_KEY)
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logging.warning('Running monitor')
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while True:
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_, data = rds_cli.brpop(settings.MONITOR_KEY)
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task = AttrDict(json.loads(data))
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if task.action in ('add', 'modify'):
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trigger = IntervalTrigger(minutes=int(task.rate), timezone=self.timezone)
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self.scheduler.add_job(
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self._dispatch,
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trigger,
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id=str(task.id),
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args=(task.id, task.type, task.targets, task.extra, task.threshold, task.quiet),
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replace_existing=True
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)
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elif task.action == 'remove':
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job = self.scheduler.get_job(str(task.id))
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if job:
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job.remove()
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