Error on context deadline with docker, what's the meaning? [closed]

Question

What is the meaning and the cause of error "Context deadline exceeded or context deadline unknown" when using docker, with docker stack deploy? I see many posts with this error in differents environment and contexts. But i m not able to understand how to avoid this problem.

When i have networks error i know what to do, but not in theses cases.

Answer 1

In my case I faced this message when DNS setting was wrong. Changing the DNS setting to 1.1.1.1 solved the issue.