Serve the admin console on its own domain

Operators want to open the admin console from a dedicated hostname, such as admin.cloud.example.com, without signing in to the client portal first and then typing /osie_admin/.

Today the admin console works only under /osie_admin/ on the same domain as the API. If the Helm chart is given a separate admin hostname, the console fails to load, because the API refuses browser requests from any other domain. The client portal also has no link to the admin console, even for admins.

What we'd like

• The Helm chart accepts an admin hostname and serves the admin console there, with / taking you to the console.

• The API accepts requests from the configured admin domain.

• Sign-in and sign-out on the admin domain land back on the admin console.

Workaround until then

An HTTPRoute that redirects the admin hostname to https://<portal>/osie_admin/.