Not really familiar with Docker but I can answer one part:
That error just means that clients are accessing your server by IP address instead of by domain name, and Caddy doesn’t have a certificate for that IP address to present to the clients.
Not really familiar with Docker but I can answer one part:
That error just means that clients are accessing your server by IP address instead of by domain name, and Caddy doesn’t have a certificate for that IP address to present to the clients.