I am currently trying to integrate shibboleth IdP with devstack, I am following the method described here: https://github.com/burgosz/openstack-horizon-shibboleth. But in the last step of this process, I need to edit the configuration file of openstack-dashboard (horizon) which was suppose to be in /etc/openstack-dashboard/local_settings. But I cannot find this openstack-dashboard folder under /etc. Now the log in page says "Unable to retrieve authorized projects". Do not know where I went wrong. Dashboard login page