Alright, I'll try to answer your questions in order:
- BadCertificate means that the certificate format is not supported (too old/Incompatible with rustls) or you passed the wrong files (swapped the private and public parts?), something like that.
- StartTls is an unencrypted connection that gets upgraded to an encrypted one. Not supported by LLDAP.
- you are getting LDAP requests probably every exactly 5 min, due to the healthcheck of the container
- without your docker configuration and LLDAP verbose logs, it's hard to say why you can't log in.
- where are you setting the IP address? In the LLDAP config for listening? This should pretty much always be 0.0.0.0 or the IPv6 equivalent.
- I haven't personally tried authelia with LLDAP, but I don't see why TLS shouldn't work