[keycloak-user] How to configure docker-v2 auth from the UI

Hello, I'm trying to use the docker-v2 protocol from https://issues.jboss.org/browse/KEYCLOAK-3592 "docker-registry" with a docker-v2 client but authentication through docker cli is not working : The docker cli is making the request right : GET /auth/realms/docker/protocol/docker-v2/auth?account=###&client_id=docker&offline_token=true&service=docker-registry HTTP/1.1 User-Agent: docker/17.03.1-ce go/go1.7.5 git-commit/c6d412e kernel/4.4.0-71-generic os/linux arch/amd64 UpstreamClient(Docker-Client/17.03.1-ce (linux)) Authorization: Basic ############## Accept-Encoding: gzip Connection: close but Keycloak answer with the HTML login page... which lead to "Error response from daemon: Get http://registry/v2/: unable to decode token response: invalid character '<' looking for beginning of value" I performed the following actions : - add "docker" realm - add "docker-registry" client - save (after setting * as valid redirect url) I noticed that "BASIC authentication is configured for you realm. Since docker auth requires HTTP Basic auth, this should be the only authenticator configured for the realm hosting the docker registry client." but didn't get it. What step should I follow so that the docker cli request succesfully retrieve a token instead of a login page ? Can u help so it work with manual setup on clean realm ?