Roel
Yes. See: https://docs.google.com/document/d/14Kvk0C-vZXBrORh6IjlEzk63Z1KuYHQ3vL5CzpXHXmY/edit?usp=sharing.
Mike
PS: While you often can use username/password to access services, the general recommendation is that you do not for use in production deployments.