caddy-ratelimit VS caddy-auth-portal

You can rate limit HTTP requests (agnostic of specific HTTP versions): https://github.com/mholt/caddy-ratelimit

If you can't already do it with the rate limit module I wrote, open an issue with your detailed requirements: https://github.com/mholt/caddy-ratelimit -- should be pretty straightforward for the most part.

> QoS for a shared-multitenant system, in the presence of customers with really badly tuned and spiky request workloads, whose traffic you must nevertheless mostly accept.

Yah, we see that sometimes. Caddy usually handles it fine, sometimes with a bit of massaging the config.

I'm using caddy for my web server due to it's awesome automatic certificate functionality using Let's Encrypt behind the scenes. Caddy supports rate limiting via this plugin so I don't have to worry about folks killing my API.

Caddy Auth Portal. Also has the advantage of providing unified secure 2FA.

I am very happy with the this caddy extension: https://github.com/greenpau/caddy-auth-portal.

Sorts this precise use case for me, need for common login provider. Without the banality of basic auth.

Check out caddy-auth-portal

After dabbling with Caddy's auth-portal, nginx Vouch proxy, Keycloak and Authelia I found Authentik.

Usually with this plugin: https://github.com/greenpau/caddy-auth-portal

There’s caddy-auth-portal which I’ve not used myself, but heard good things about.

I hope this post helps setting up your SSO with Caddy. I'd highly recommend trying it out if you find yourself always needing to authenticate with different services on your domain – and check out caddy-auth-portal's docs for even more advanced features!

This sounds like an XY Problem. It sounds like you're missing a good IAP solution to deal with access controls. Something like oauth2_proxy, Keycloak, Pomerium, etc. Hell, I've even set up a basic IAP with Caddy and Oauth Portal.