I use Graylog in Docker.
I create certificate for secure connection and these certificates are correct and accepted.
The server starts, but I do not have access to the application at all.
I have this problem, when test connection (curl)
curl -v https://0.0.0.0:80
curl: (35) gnutls_handshake() failed: The TLS connection was non-properly terminated.
But that might not solve your issue. Without knowing anything about your setup - index error analysis why this handshake fails and your network configuration and setup of Graylog nobody can help you to identify what’s going wrong.