docker-compose pull results in x509: certificate signed by unknown authority

Question

I\'m hitting the following error when trying to pull the elastcisearch images from dockerhub.

docker-compose pull
Pulling elasticsearch (elasticsearch:2.2.0)...
         


        

Answer 1

1. Export the SSL certificate using Firefox.
   • Hit the URL in Firefox
   • Click on advanced, if you see warning or the lock on the URL bar.
   • Export the certificate(In Details tab)
   • Let's assume the cert file name is your.ssl.server.name.crt
2. Copy CA cert to /usr/local/share/ca-certificates.
3. sudo update-ca-certificates
4. sudo service docker restart