Docker Hub uses your free Docker ID to save your account settings, and as your account namespace. If you don’t yet have a Docker ID, you can register for one.
search Docker Hub and
pull images without an account and
without signing in. However, to
push images, leave comments, or to star a
repository, you need to log in using a Docker ID.
Once you have a personal Docker ID, you can also create or join Docker Hub Organizations and Teams.
Free Docker Hub accounts include one private registry. If you need more private registries, you can upgrade your account to a paid plan directly from the Hub.
If you forget your password, or can’t access your account for some reason, you can reset your password from the Password Reset page.