Docker pull error : x509: certificate has expired or is not yet valid

Question

Description of problem:

I\'m trying to pull ubuntu from the public registry with this command :

docker pull ubuntu

And then i got this

Answer 1

I had the similar issue on centos vagrant vm machine. When I were pulling any docker image, the bellow error were poping up

   error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/4b/4bb46517cac397bdb0bab6eba09b0e1f8e90ffffd17cf99662997c3253531136f8/data?verify=1597376104-j8KSa2vKDeIZNFuPq0EP9cb3sqc%3D: x509: certificate has expired or is not yet valid

The problem was the centos vagrant vm machine date and timezone were different from my host machine. After updating my vm machine to the same date and timezone with my host, the issue were fixed.

   #check the timezone
   $timedatectl
   #update timezone
   $timedatectl set-timezone America/Toronto
   #update date
   date --set="Fri August 14 3:08:10 EDT 2020"