Usage: docker logout [SERVER]
Log out from a Docker registry, if no server is specified "https://index.docker.io/v1/" is the default.
$ docker logout
If you want to logout from a self-hosted registry you can specify this by adding the server name.
$ docker logout myrepo.example.com
There is no known divergence between the Triton SDC Docker and Docker Inc. implementations of this method. Please contact Joyent support or file a ticket if you discover any.