Multi region deployment with SAML Backend

[Aymen Frikha]

Hello,

 We deployed two openstack clusters (Just the identity components) on the same juju controller but on different models, and we relate the horizon dashboard of each region to the keystone of the other region.
Here is the status of both regions:
Region 1: https://pastebin.canonical.com/p/xFMtHnDB4Y/
Region 2: https://pastebin.canonical.com/p/smdmzK5TNy/

When we want to access from one dashboard (region1) to region2 using the user credentails from the sql database, it's working correctly. (idem for the other way region2 -> region1)
But When we want to access from dashboard (region1) to region2 using the saml credentials (login), it doesn't work, and the horizon dashboard does not recognize on which region it's working on (top right botton shows none).
Here is a recorded video about that: https://drive.google.com/file/d/1JVltZNMVHDVvyRsaHreNSi5aiKTdmF4T/view?usp=share_link

Thanks

[Aymen Frikha (aym-frikha)]

subscribed ~field-medium