In CloudStack, it seems that one can login via three methods:
1) Connect to the API endpoint and use a login command with a user name and
password.2) Connect to the API endpoint and use a login command with a user
name and a signature based upon the "security.singlesignon.key" global
setting.3) Pass a "loginUrl" parameter to the login page which fills out the
g_loginResponse data structure. See $(document).ready() in
cloud.core.callbacks.js in the ui/scripts directory.
It is that last option I am trying to understand. What is the use case for
this? Are there examples of this parameter?