This problem IS happening in docker-1:1.9.1-2.git78bc3ea.fc23.x86_64 but is NOT happening in docker-1:1.7.0-22.gitdcff4e1.fc23.x86_64. These are packaged by Fedora; this is also NOT happening in docker-engine-1.9.1-1.fc22.x86_64 which I downloaded directly from the Docker Project. (Though it's named fc22 I'm running it on Fedora 23.)
"docker login" works:
WARNING: login credentials saved in /home/beland/.docker/config.json
but "docker pull noodle/memcached" doesn't:
Using default tag: latest
Trying to pull repository docker.io/noodle/memcached ... not found
Error: image noodle/memcached:latest not found
I have the same trouble pulling any of the private images I have access to, but only when I use that particular version of the docker RPM; after a "dnf downgrade" and reboot I'm able to download successfully on the same machine.
Thank you, Christopher, for the report.
The docker-1:1.9.1-2.git78bc3ea.fc23.x86_64 release is buggy indeed. Fix is available in docker-1.9.1-3.git64eb95e.fc22 which is currently only in Fedora 22 repos (though it works on f23 as well).
Lokesh, you may switch this to MODIFIED once f23 is rebuilt. Thanks.
docker-1.9.1-4.git6ec29ef.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2015-5917f166c6
docker-1.9.1-4.git6ec29ef.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.
If you want to test the update, you can install it with
$ su -c 'dnf --enablerepo=updates-testing update docker'
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-5917f166c6
docker-1.9.1-4.git6ec29ef.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.