celery.py

from __future__ import absolute_import, unicode_literals
import os
from celery import Celery
from flowspy import settings
import sys

##

print("celery app start", file=sys.stderr)

##

# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'flowspy.settings')

app = Celery('flowspy')

# Using a string here means the worker doesn't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
#   should have a `CELERY_` prefix.
app.config_from_object('django.conf:settings', namespace='CELERY')

##

if hasattr(settings, 'SNMP_POLL_LOCK'):
    SNMP_POLL_LOCK=settings.SNMP_POLL_LOCK
    #print("SNMP_POLL_LOCK="+str(SNMP_POLL_LOCK), file=sys.stderr)
    if SNMP_POLL_LOCK!='' and os.path.exists(SNMP_POLL_LOCK):
      print("trying to remove "+str(SNMP_POLL_LOCK), file=sys.stderr)
      os.rmdir(SNMP_POLL_LOCK)

    SNMP_TEMP_FILE=settings.SNMP_TEMP_FILE
    #print("SNMP_TEMP_FILE="+str(SNMP_TEMP_FILE), file=sys.stderr)
    if SNMP_TEMP_FILE!='' and os.path.exists(SNMP_TEMP_FILE+'.lock'):
      print("trying to remove "+str(SNMP_TEMP_FILE+'.lock'), file=sys.stderr)
      os.rmdir(settings.SNMP_TEMP_FILE+'.lock')

##

# Load task modules from all registered Django app configs.
app.autodiscover_tasks()

app.conf.beat_schedule = settings.CELERYBEAT_SCHEDULE

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