Option to connect via TLS (start on TLS connection rather than an upgrade)

[rbinder-vg]

Feature Request

Use Case:

I would like to use a TLS termination reverse proxy. At the moment i can't set a option to tell the client to use TLS right from the beginning.

See:

• https://github.com/nats-io/nats-server/issues/291
• https://docs.nats.io/running-a-nats-service/configuration/securing_nats/tls#tls-terminating-reverse-proxies

Proposed Change:

Provide a new option to start on TLS connection

Who Benefits From The Change(s)?

Those who use TLS termination reverse proxy

Alternative Approaches

Support Websockets