import logging from django.utils import timezone from django.utils.translation import ugettext_lazy as _ from manager.mancelery import celery from vm.models import Node, Instance logger = logging.getLogger(__name__) @celery.task(ignore_result=True) def update_domain_states(): nodes = Node.objects.filter(enabled=True).all() for node in nodes: node.update_vm_states() @celery.task(ignore_result=True) def garbage_collector(timeout=15): """Garbage collector for instances. Suspends and destroys expired instances. :param timeout: Seconds before TimeOut exception :type timeout: int """ now = timezone.now() for i in Instance.objects.filter(destroyed=None).all(): if i.time_of_delete and now < i.time_of_delete: i.destroy_async() logger.info("Expired instance %d destroyed.", i.pk) try: i.owner.profile.notify( _('%s destroyed') % unicode(i), 'dashboard/notifications/vm-destroyed.html', {'instance': i}) except Exception as e: logger.debug('Could not notify owner of instance %d .%s', i.pk, unicode(e)) elif (i.time_of_suspend and now < i.time_of_suspend and i.state == 'RUNNING'): i.sleep_async() logger.info("Expired instance %d suspended." % i.pk) try: i.owner.profile.notify( _('%s suspended') % unicode(i), 'dashboard/notifications/vm-suspended.html', {'instance': i}) except Exception as e: logger.debug('Could not notify owner of instance %d .%s', i.pk, unicode(e)) elif i.is_expiring(): logger.debug("Instance %d expires soon." % i.pk) i.notify_owners_about_expiration() else: logger.debug("Instance %d didn't expire." % i.pk)