The trojan role SHALL use certbot to obtain a TLS certificate for the landing server's domain, with automatic renewal. After provisioning or renewal, the certificate and key SHALL be copied to a trojan-owned directory (/etc/trojan-go/tls/) so the service user can read them. The certbot deploy-hook SHALL be placed in /etc/letsencrypt/renewal-hooks/post/ for automatic execution.
/etc/trojan-go/tls/ owned by the trojan user/etc/letsencrypt/renewal-hooks/post/ copies the renewed certs to /etc/trojan-go/tls/