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利用django admin后台配置celery定时任务
1、安装djcelery
pip install django-celery
2、在Django项目setting配置
A、配置djcelery
# CELERY STUFF import djcelery djcelery.setup_loader() BROKER_URL = ‘redis://localhost:6379‘ CELERYBEAT_SCHEDULER = ‘djcelery.schedulers.DatabaseScheduler‘ # 定时任务 CELERY_RESULT_BACKEND = ‘djcelery.backends.database:DatabaseBackend‘ CELERY_RESULT_BACKEND = ‘redis://localhost:6379‘ CELERY_ACCEPT_CONTENT = [‘application/json‘] CELERY_TASK_SERIALIZER = ‘json‘ CELERY_RESULT_SERIALIZER = ‘json‘ CELERY_TIMEZONE = ‘Asia/Shanghai‘
B、配置APPS
INSTALLED_APPS = ( # ‘bootstrap_admin‘, ‘django.contrib.admin‘, ‘django.contrib.auth‘, ‘django.contrib.contenttypes‘, ‘django.contrib.sessions‘, ‘django.contrib.messages‘, ‘django.contrib.staticfiles‘, ‘djcelery‘, )
3、创建一个用Saltstack API收集主机信息task
from celery import task from saltstack.saltapi import SaltAPI @task def server_collects(tgt,server_id): contexts = {‘server_list‘: server_list, ‘server_id‘: server_id} try: sapi = SaltAPI(url="http://192.168.62.200:8000", username="kbson", password="kbson") grains = sapi.SaltCmd(tgt=tgt, fun=‘grains.items‘, client=‘local‘)[‘return‘][0] minions = sapi.key_list(‘manage.status‘, client=‘runner‘)[‘return‘][0] if salt_server and grains: for i in grains.keys(): try: server = Servers.objects.get(local_ip=i) except: server = Servers() if i in minions[‘up‘]: minions_status = ‘0‘ else: minions_status = ‘1‘ server.hostname = grains[i][‘host‘] server.local_ip = grains[i][‘id‘] server.OS = grains[i][‘os‘] + ‘ ‘ + grains[i][‘osrelease‘] + ‘-‘ + grains[i][‘osarch‘] server.Mem = grains[i][‘mem_total‘] server.Cpus = grains[i][‘num_cpus‘] server.Cpu_type = grains[i][‘cpu_model‘] server.minion_id = grains[i][‘id‘] server.app = grains[i][‘virtual‘] server.server_status = minions_status server.save() contexts.update({‘success‘: u‘%s 收集成功‘ % tgt}) if not grains: contexts.update({‘error‘: u‘%s 主机不存在或者离线‘ % tgt}) except Exception as e: contexts.update({‘error‘: ‘%s %s‘ % (tgt, e)}) return contexts
4、配置supervisor守护进程来启动celery,启动worker与beat进程
worker:执行任务的消费者,通常会在多台服务器运行多个消费者来提高执行效率。
beat:任务调度器,Beat进程会读取配置文件的内容,周期性地将配置中到期需要执行的任务发送给任务队列。 Celerybeat会保持运行, 一旦到了某一定时任务需要执行时, Celerybeat便将其加入到queue中. 不像worker进程, Celerybeat只有需要一个即可.
[program:DJ.celeryd] command=/usr/local/python27/bin/python /data/PRG/saltruler/manage.py celery worker --loglevel=info user=root numprocs=1 directory=/data/PRG/saltruler stdout_logfile=/var/log/celery_worker.log stderr_logfile=/var/log/celery_worker.log autostart=true autorestart=true startsecs=10 stopwaitsecs = 120 priority=998 [program:DJ.celerybeat] command=/usr/local/python/bin/python /data/PRG/saltruler/manage.py celery beat --schedule=/tmp/celerybeat-schedule --pidfile=/tmp/django_celerybeat.pid --loglevel=INFO user=root numprocs=1 directory=/data/PRG/saltruler stdout_logfile=/var/log/celery_beat.log stderr_logfile=/var/log/celery_beat.log autostart=true autorestart=true startsecs=10 stopwaitsecs = 120 priority=998
5、Django后台配置celery定时任务
访问Django后台http://192.168.62.200:8000/admin/djcelery/periodictask/
添加periodic task
查看添加的定时任务
查看后台日志是否有执行,正常执行日志输入类似如下内容
[2017-04-20 13:30:00,001: INFO/Beat] Scheduler: Sending due task update cmdb (saltstack.tasks.server_collects) [2017-04-20 13:30:00,006: INFO/MainProcess] Received task: saltstack.tasks.server_collects[f46d2c70-1550-4dec-b5aa-036fbffd2a5f] [2017-04-20 13:30:00,058: WARNING/Worker-18] https://192.168.62.200:8000 [2017-04-20 13:30:07,163: INFO/MainProcess] Task saltstack.tasks.server_collects[f46d2c70-1550-4dec-b5aa-036fbffd2a5f] succeeded in 7.15584068373s: {‘server_id‘: 1L, ‘success‘: u‘* \u6536\u96c6\u6210\u529f‘, ‘server_list‘: <QuerySet [<SaltServer: games -... [2017-04-20 13:31:49,945: INFO/Beat] Writing entries (1)...
利用django admin后台配置celery定时任务
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