Create Role button is not visible for default admin user

[Danny Cocks]

When I navigate to the Identity->Roles page as the admin user, I see a list of the roles in the cluster, but no buttons to create/modify/delete the roles.

I am using a charmed install of a Yoga cluster, and the default admin user (username: admin, domain: admin_domain, default keystone policies and default horizon policies, that is no overrides). I can create/modify/delete roles from the CLI.

I thought this might have been a subtlety of the policy rules, so I tested including some Horizon policy overrides, which open up the policies to any user (setting every policy listed in the keystone/identity folders to "@"). This didn't change anything. To verify I was setting the policies correctly, I tested "identity:create_user": "!" and the "Create User" button disappeared in Horizon.

This bug seems similar to [1] however I am using the default admin "power user" instead of adding domain roles.

[1] https://bugs.launchpad.net/horizon/+bug/1775227