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# -*- coding: utf-8 -*-
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#
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import json
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import os
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import redis_lock
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import redis
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from django.conf import settings
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from django.utils.timezone import get_current_timezone
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from django.db.utils import ProgrammingError, OperationalError
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from django_celery_beat.models import (
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PeriodicTask, IntervalSchedule, CrontabSchedule, PeriodicTasks
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)
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from common.utils import get_logger
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logger = get_logger(__name__)
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def create_or_update_celery_periodic_tasks(tasks):
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"""
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:param tasks: {
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'add-every-monday-morning': {
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'task': 'tasks.add' # A registered celery task,
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'interval': 30,
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'crontab': "30 7 * * *",
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'args': (16, 16),
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'kwargs': {},
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'enabled': False,
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'description': ''
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},
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}
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:return:
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"""
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# Todo: check task valid, task and callback must be a celery task
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for name, detail in tasks.items():
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interval = None
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crontab = None
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try:
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IntervalSchedule.objects.all().count()
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except (ProgrammingError, OperationalError):
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return None
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if isinstance(detail.get("interval"), int):
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kwargs = dict(
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every=detail['interval'],
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period=IntervalSchedule.SECONDS,
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)
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# 不能使用 get_or_create，因为可能会有多个
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interval = IntervalSchedule.objects.filter(**kwargs).first()
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if interval is None:
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interval = IntervalSchedule.objects.create(**kwargs)
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elif isinstance(detail.get("crontab"), str):
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try:
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minute, hour, day, month, week = detail["crontab"].split()
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except ValueError:
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logger.error("crontab is not valid")
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return
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kwargs = dict(
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minute=minute, hour=hour, day_of_week=week,
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day_of_month=day, month_of_year=month, timezone=get_current_timezone()
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)
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crontab = CrontabSchedule.objects.filter(**kwargs).first()
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if crontab is None:
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crontab = CrontabSchedule.objects.create(**kwargs)
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else:
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logger.error("Schedule is not valid")
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return
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defaults = dict(
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interval=interval,
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crontab=crontab,
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name=name,
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task=detail['task'],
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args=json.dumps(detail.get('args', [])),
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kwargs=json.dumps(detail.get('kwargs', {})),
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description=detail.get('description') or ''
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)
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task = PeriodicTask.objects.update_or_create(
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defaults=defaults, name=name,
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)
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PeriodicTasks.update_changed()
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return task
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def disable_celery_periodic_task(task_name):
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from django_celery_beat.models import PeriodicTask
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PeriodicTask.objects.filter(name=task_name).update(enabled=False)
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PeriodicTasks.update_changed()
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def delete_celery_periodic_task(task_name):
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from django_celery_beat.models import PeriodicTask
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PeriodicTask.objects.filter(name=task_name).delete()
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PeriodicTasks.update_changed()
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def get_celery_periodic_task(task_name):
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from django_celery_beat.models import PeriodicTask
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task = PeriodicTask.objects.filter(name=task_name).first()
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return task
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def get_celery_task_log_path(task_id):
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from ops.utils import get_task_log_path
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return get_task_log_path(settings.CELERY_LOG_DIR, task_id)
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def get_celery_status():
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from . import app
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i = app.control.inspect()
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ping_data = i.ping() or {}
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active_nodes = [k for k, v in ping_data.items() if v.get('ok') == 'pong']
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active_queue_worker = set([n.split('@')[0] for n in active_nodes if n])
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# Celery Worker 数量: 2
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if len(active_queue_worker) < 2:
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print("Not all celery worker worked")
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return False
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else:
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return True
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def get_beat_status():
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CONFIG = settings.CONFIG
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r = redis.Redis(host=CONFIG.REDIS_HOST, port=CONFIG.REDIS_PORT, password=CONFIG.REDIS_PASSWORD)
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lock = redis_lock.Lock(r, name="beat-distribute-start-lock")
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try:
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locked = lock.locked()
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return locked
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except redis.ConnectionError:
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return False
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