Chirpstack v4 over IIS reverse proxy

ChirpStack (v4) Setup and configuration
1

Hi there.

I’ve been testing chirpstack v4 with directly NATing to that VM.
Now we went to production, and I set up reverse proxy on my win 2019 machine using IIS.
Everything works fine except grpc.
I can’t get it to work, it doesn’t work over https nor http.
Is there anything specific I need to configure in reverse proxy for grpc to work?
It works fine without reverse proxy.

2

Make sure you’re using http2 for the grpc connection. I use traefik as a reverse-proxy and had to configure the following line for the API to work:

- "traefik.http.services.chirpstack.loadbalancer.server.scheme=h2c"

Which forces the lodabalancer to use http2 cleartext.

3

It uses http2 as default:

image
image526×416 8.66 KB

and this is full web.config file:
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image850×417 16.6 KB

Everything works except grpc…