from celery import Celery
import os
redis_string = 'redis://{hostname}:{port}/{database}'.format(
    hostname=os.environ.get('YADAGE_REDIS_HOST', 'localhost'),
    port=os.environ.get('YADAGE_REDIS_PORT', 6379),
    database=os.environ.get('YADAGE_REDIS_DB', 0)
)
app = Celery(broker=redis_string, backend=redis_string)
