Django+Celery实现动态配置定时任务的方法示例

celery (3.1.26.post2)
celery-with-redis (3.0)
redis (2.10.6)
Django (2.1.10)
django-celery (3.3.1)

python manage.py migrate

INSTALLED_APPS = [
  'django.contrib.admin',
  'django.contrib.auth',
  'django.contrib.contenttypes',
  'django.contrib.sessions',
  'django.contrib.messages',
  'django.contrib.staticfiles',
  'djcelery',  #这是要添加的
]

LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'Asia/Shanghai'
USE_I18N = True
USE_L10N = True
USE_TZ = False

BROKER_URL = 'redis://localhost:6379' #代理人
CELERY_RESULT_BACKEND = 'redis://localhost:6379' #结果存储地址
CELERY_ACCEPT_CONTENT = ['application/json'] #指定任务接收的内容序列化类型
CELERY_TASK_SERIALIZER = 'json' #任务序列化方式
CELERY_RESULT_SERIALIZER = 'json' #任务结果序列化方式
CELERY_TASK_RESULT_EXPIRES = 12 * 30 #超过时间
CELERY_MESSAGE_COMPRESSION = 'zlib' #是否压缩
CELERYD_CONCURRENCY = 4 #并发数默认已CPU数量定
CELERYD_PREFETCH_MULTIPLIER = 4 #celery worker 每次去redis取任务的数量
CELERYD_MAX_TASKS_PER_CHILD = 3 #每个worker最多执行3个任务就摧毁，避免内存泄漏
CELERYD_FORCE_EXECV = True #可以防止死锁
CELERY_ENABLE_UTC = False #关闭时区
CELERYBEAT_SCHEDULER = 'djcelery.schedulers.DatabaseScheduler' # 定时任务调度器

import os
from celery import Celery,platforms
from django.conf import settings
os.environ.setdefault('DJANGO_SETTINGS_MODULE','blog.settings')
app = Celery('blog')
app.config_from_object('django.conf:settings')
app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)
platforms.C_FORCE_ROOT = True

@app.task(bind=True)
def debug_task(self):
  print('Request: {0!r}'.format(self.request))

from __future__ import absolute_import
from .celery import app as celery_app

from blog.celery import app
@app.task()
def get_date(x,y,s):　　#这里的函数留意一下，后面会用到
  print(s)
  return x + y

@app.task()
def get_task():
  return 'test'

@app.task()
def get_command_task():
  return 'success'

celery -A autoops worker -l info

celery -A autoops beat -l info  

python manage.py runserver 192.168.10.133:8001

pip3 install flower==0.9.2 -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
pip install tornado==5.1.1
celery flower -A blog --port=5555 #进入项目目录启动flower