Use tls-crypt instead of tls-auth

[tobyxdd]

With tls-crypt, all TLS protocol related packets (including handshakes, user authentication, config push, etc.) are encrypted and authenticated with the key from the static key file. This helps to hide the fact that it's an OpenVPN TLS connection, which is critical for people using it for circumventing censorship in suppressive countries like China or Iran.

[fijimunkii]

This is great, thanks!

[septatrix]

Any estimate on when we will see this merged?

[lisenet]

https://github.com/lisenet/docker-openvpn/releases/tag/2.6.6-build20