mongoscheduler

针对MongoDB的celery beat scheduler，支持crontab任务和Interval任务，同时支持celery中CELERYBEAT_SCHEDULE任务；

配置选项：

CELERY_MONGO_URI：MongoDB连接字符串，添加此配置参数后，下面的（HOST, PORT....）可以不填，相同的作用；
CELERY_MONGO_HOST：主机地址
CELERY_MONGO_PORT：端口
CELERY_MONGO_DBNAME： 数据库
CELERY_MONGO_USERNAME： 用户名
CELERY_MONGO_PASSWORD： 密码
CELERY_MONGO_AUTH_SOURCE：MongoDB 认证源，默认为"admin"
CELERY_MONGO_COLLECTION：存放scheduler的MongoDB集合

crontab任务

{
  "name": "crontab任务",
  "task": "test",
  "kwargs": {},
  "total_run_count": 9,
  "args": [16, 16],
  "enabled": true,
  "options": {},
  "crontab": {
    "month_of_year": "*",
    "day_of_week": "*",
    "hour": 16,
    "minute": 28,
    "day_of_month": "*"
  },
  "last_run_at": ISODate("2017-10-08T08:28:00.003+0000")
}

Interval任务

{
  "name": "interval任务",
  "task": "test",
  "kwargs": {},
  "total_run_count": 7,
  "args": [],
  "enabled": true,
  "options": {},
  "interval": {
    "every": 10,
    "period": "seconds"
  },
  "last_run_at": ISODate("2017-10-09T01:12:47.971+0000")
}

enabled

enabled为False的时候，计划任务将不会执行；

使用方法

在celery的配置中添加CELERYBEAT_SCHEDULER选项，如

coding:utf-8
from mongoscheduler import MongodbScheduler

BROKER_URL = 'redis://192.168.99.100:6379/1'
CELERY_RESULT_BACKEND = 'redis://192.168.99.100:6379/1'
CELERY_TASK_SERIALIZER = 'pickle'
CELERY_ACCEPT_CONTENT = ['pickle']
CELERY_RESULT_SERIALIZER = 'pickle'
CELERY_TASK_RESULT_EXPIRES = 5
CELERY_MAX_CACHED_RESULTS = 5
CELERY_TIMEZONE = 'Asia/Shanghai'
CELERYBEAT_SCHEDULER = MongodbScheduler
CELERY_MONGO_URI = None
CELERY_MONGO_HOST = "192.168.99.100"
CELERY_MONGO_PORT = 27017
CELERY_MONGO_DBNAME = "dbname"
CELERY_MONGO_USERNAME = "username"
CELERY_MONGO_PASSWORD = "****"
CELERY_MONGO_AUTH_SOURCE = "admin"
CELERY_MONGO_COLLECTION = "celery_schedule"