Comment 1 for bug 1629865

I don't know anything about multi domain, but my expectation with this variable would be to add support of multi-domain.

The default domain should be specified by horizon_keystone_default_domain .

Would the questions be: May I disable the default domain if horizon_keystone_default_domain is set to ''? Should I do it that way?

Currently we have this in our templating:
OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = "{{ horizon_keystone_default_domain }}"

Maybe we should move to
{% if horizon_keystone_default_domain | length > 0 %}
OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = "{{ horizon_keystone_default_domain }}"
{% %}

Would that be a proper fix?