title: No response after connecting from celery to redis via ssl
body: <p>I'm following <a href="https://blog.miguelgrinberg.com/post/using-celery-with-flask" rel="nofollow noreferrer">this</a> tutorial, and adjusting the Celery-background related code to my project.</p>
  
  <p>In my case I am operating in a Docker environment, and I have a secured site (i.e. <a href="https://localhost" rel="nofollow noreferrer">https://localhost</a>).
  which requires <strong>secured ssl</strong> communication.</p>
  
  <p>I adjusted the code for secure connection.<br>
  I had initial connection problems, which created log error messages, but I was able to solve - see <a href="https://stackoverflow.com/questions/60219700/cannot-make-a-secured-connection-from-celery-to-redis/60243214#60243214">here</a>.<br></p>
  
  <p>Now the log file is quite, but I think that I still have connection problems. As a result, at runtime, when triggerring a task, nothing happens.</p>
  
  <p>What could be the reason for no connection in the secured case?<br>
  Should I expect a message if the keys are incorrect?
  Is there a way to test the connection from celery/web containers to redis container from the command line?</p>