On the docker hub you are a user and have a own namespace. Say my username was tobtobxx, if I would upload the docker image "ubuntu", it'd be accessible as "tobtobxx/ubuntu". However, if the company/project is large enough, it can get into contact with Google (the managing party of the Docker hub IIRC) and then this image becomes a so-called official image. It is then available as just "ubuntu" (no prefix).
@aluaces @yarmo
How hub.docker.com solves this problem?
On the docker hub you are a user and have a own namespace.
Say my username was tobtobxx, if I would upload the docker image "ubuntu", it'd be accessible as "tobtobxx/ubuntu". However, if the company/project is large enough, it can get into contact with Google (the managing party of the Docker hub IIRC) and then this image becomes a so-called official image.
It is then available as just "ubuntu" (no prefix).