[RFE] Allow to pre-fill "Domain" on login page

[Cédric Jeanneret deactivated]

Dear Stackers,

It would be really cool if we could have, instead of a plain "text" input, a select where we can list the available domains on the authentication page of Horizon.

That would prevent any typo and "shoo, I forget to add the domain while authenticating", especially since browser auto-complete doesn't fill that field.

Another way would be to, at least, allow the following variable to be taken into account, from Horizon configuration (/etc/opensatck-dashboard/local_settings):
OPENSTACK_KEYSTONE_DEFAULT_DOMAIN

According to the embedded doc/comment, this variable is taken into account if and only if we deactivate "multi domain" support.

Allowing people to set a default domain in any cases would be really nice.

Care to have a look?

Thank you!

Cheers,

C.