Make the default/root keycloak page friendlier

[bickelj]

In b838c20 a placeholder or default page was put into place called auth_root_page.html in case someone tries to visit the auth.[etc] domain directly. Only specific paths are proxied to Keycloak, and the bare root is not among them. Since the purpose was only to avoid seeing a default reverse proxy placeholder page, this page is currently very minimal. The goal of this ticket is to make the page look more aligned with the PDC's style overall.

[bickelj]

@reefdog I doubt this is urgent but something to be aware of. When visiting https://auth... directly with no path, a bare-bones default page is now shown. This page could use (borrow?) some style from other pages, I suppose.

[reefdog]

@bickelj I assigned it to myself because I'm happy to tackle it once there's time. I agree it's good to show something here.

[jasonaowen]

If we do plan to keep a placeholder page, I'd appreciate it if it contained a link to the Keycloak admin console, for those who are able to log in there - /admin/ or so.

Another alternative is just to make the root page redirect to the marketing page, or the app page, or something - that's less convenient for Keycloak admins, but also avoids the work of making and maintaining another web page, even if it's only a static one.

[reefdog]

Ah, I very much like the simplicity of just redirecting to the "marketing" page. There's no reason auth. needs to say… anything!

Is it possible for us to do a redirect for root requests in the server config, or do we need an old-fashioned meta redirect?

[bickelj]

We don't really link to the bare auth URL anywhere but sometimes I type it out and the existing page helps remind me to go to the right place. So I guess I am OK with the status quo but I would be OK with revisiting if it's too ugly.