Show webserver for users on *OpenAdmin > Domains* and allow editing of main conf file for nginx/apache

[stefanpejcic]

On the /domains page in the OpenAdmin UI, we can add a new “Webserver” column immediately after “PHP Version” so admins can identify webserver used by the domain. This column should be shown by default and on/off in the toggle.

For each domain, display:

• The webserver currently used by the user.
• The Varnish status for the domain.

We can reuse the existing webserver/Varnish detection logic from the /users/<username> page. Since the webserver configuration is per user, fetch/detect this information only once per user and reuse it for all domains belonging to that user.

Since we now have the webserver information available per user, we can create a new page: /domains/config/<username> should work similarly to: /domains/vhost/<username>/<domain>. The new page should allow an administrator to edit the main configuration file for the webserver used by that user. After saving the configuration, the corresponding webserver/service should be restarted.

For webserver configuration files located under: /home/<context>/<conf file> the configuration file/path should be hardcoded.

Once the main configuration editing functionality is implemented, we can link it: a new “Edit Main Conf” action to the Actions column on /domains, before “Edit Caddyfile”, the link should point to: /domains/config/<username>

This gives administrators a quick way to edit the user's main webserver configuration directly from the domains list.

[stefanpejcic]