Document the auth methods in the README

[mig5]

Hi,

Thanks for your project.

Right now the README lists a number of authentication methods such as Authorization TOKEN header but it is not clear how to use them.

I looked at the sample .env file and it seems to enforce basic HTTP auth, and I can't figure out how to change this.

Context: I am trying to implement what you did with Upptime per upptime/upptime#54 (reply in thread) but I suspect I need to change the Rauthy configuration to understand the Authentication header being passed through. My vhost looks much like yours on the proxy side..

Any help? Thanks!

[mig5]

Also, I am using the Docker method. I can 'set' a user/password with a success message but it still pops up with auth every time, rejecting the password I set.

If I 'download the latest release' (what appears to be named nginx-auth) per your README, I get a fatal error trying it natively after setting the .env

root@server:/opt/rauthy# rauthy user -u mig5 -p test
thread 'main' panicked at 'BASIC_AUTH_USER missing: EnvVar(NotPresent)', src/main.rs:22:20
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Up-to-date docs will be much appreciated :) Thanks again

[Krakaw]

Hey, thanks for the feedback, I'll update the docs ASAP and make sure that bug is sorted (I'll also double check the latest release is actually the latest code, I have a sneaky suspicion that it's an old version)

[mig5]

Thank you @Krakaw ! Yeah, I ended up going with the Docker version to get/build the latest.. which gave slightly better results (no fatal errors when running rauthy commands inside the container), but still can't get it to work.

Inside the container, I had mixed results trying to write entries to the auth.json - for example running rauthy user -u someuser -p somepass would not write anything to the auth.json (it'd be an empty file), but reversing the parameters rauthy user -p somepass -u someuser would write to the file... strange!

Nonetheless, even after that, I just keep getting the 401 auth popup, so I'm probably doing something wrong still. I was kind of hoping for an option that didn't give an auth pop-up at all, and just pass the Github token parameter along to the Github API for the 'upptime via a private repo' trick..

Much appreciated, I look forward to reading the docs :)