Pickle is refusing to serialize content with celery reporting ContentDisallowed: Refusing to deserialize untrusted content of type pickle
Have you tried, this:
CELERY_ACCEPT_CONTENT = ['pickle']As indicated in this link ( http://docs.celeryproject.org/en/latest/userguide/configuration.html#std:setting-accept_content)this setting accepts a list of serializer names and content-types, so you could either white-list the serializer or the content-types you expect to serialize.
So either do the above, or use SSL message signing… which is basically, building a ssh-key pair, and enabling celery to use your keys to get a secure connection.
You can activate message signing, by registering your "KEY" and "CERTIFICATE" with:
CELERY_SECURITY_KEY = '/etc/ssl/private/worker.key'CELERY_SECURITY_CERTIFICATE = '/etc/ssl/certs/worker.pem'CELERY_SECURITY_CERT_STORE = '/etc/ssl/certs/*.pem'from celery.security import setup_securitysetup_security()As far as what that stuff means… and how it works, see:http://www.tldp.org/HOWTO/SSL-Certificates-HOWTO/x64.html
Also, for how to generate keys (and enable secure passwordless logins), see:https://help.github.com/articles/generating-ssh-keys/or http://mah.everybody.org/docs/ssh for more general links referenced therein.