Self-signed certificates

[reesericci]

I think it would be nice if thruster allowed for secure local usage easily via self signed certs. I force HTTPS in my rails app, and so I'm going to need to either support HTTP and not know when to redirect to HTTPS or build out some system for self-signed certs and disable HTTP altogether.

Blocked by #40

[reesericci]

From an implementation perspective, I think having an TLS_SELF_SIGNED env variable makes sense and just storing the CA where the LE certs are.

[reesericci]

I think I'm going to work on implementing this and see how far I get

[MattKitmanLabs]

We use a Kubernetes cluster with its own cert manager, I'm wondering if this can run without the need for it to try step in and handle any TLS for us?

[reesericci]

The main thing is that my PR makes thruster handle its own CA so I don't think this is fit for that use case atm