I am experiencing issues dynamically redirecting multiple domains to a primary domain (domain1.com) using Caddy. I am building a website builder, and I need my clients to be able to dynamically set up their domains.

My current setup involves:

1. Primary Domain Setup: domain1.com is set up and working correctly, serving from the specified directory via Caddy.

2. Dynamic Domain Management: I have multiple additional domains (domain2.com, domain3.com, etc.) that need to be redirected to domain1.com. These domains are stored in a database and fetched via an API.

Caddyfile Configuration:

{

    admin off

    persist_config off

    auto_https off

    log {

        format json

        output stdout

    }

    servers {

        trusted_proxies static private_ranges

    }

}

:{$PORT} {

    log {

        output stdout

        format json

    }

    route /health {

        respond "ok" 200

    }

    root * /app/dist/apps/editor/browser

    encode gzip

    file_server

    try_files {path} /index.html

}

Issue:

I tried setting up a CNAME record for custom domains to point to domain1.com, but I receive the following error:

Not Found
The train has not arrived at the station.

Please check your network settings to confirm that your domain has provisioned.

If you are a visitor, please let the owner know you're stuck at the station.

Request ID: UgIBmrEcRMy89Y1JiMPHjA_2823689937

Question: How can I dynamically add domain redirections without redeploying my application?