question: how to pass X_Forwarded_For to subgraph and get it from there

[billnbell2]

How do we pass AWS X_Forwarded_For from Cloudfront -> ALB -> Router -> ALB -> Subgraph

https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/x-forwarded-headers.html#x-forwarded-for

We want to get the IP address so we can pass it to Algolia.

[garypen]

By default, the router won't propagate headers unless they are configured for propagation. So, you could add config to cause the header to propagate.

However, this wouldn't achieve what you are looking for, since the router won't attach it's own IP address to the chain. I think this is an issue and we should modify the propagation logic so that, if X-Forwarded-For is configured for propagation, then the router behaves as expected and adds its IP address to the comma separated list.

What do you think of the above @billnbell2 ? If you like the sound of that I'll file an issue and we can proceed from there.