[problem] unable to talk to Fn deployed behind k8s ingress controller

[denismakogon]

Intro

The latest helm charts deploying Fn in a distributed mode.
In order to reduce the number of services to be exposed and IP addresses allocated, helm chart creates an ingress rules:

Rules:
  Host              Path  Backends
  ----              ----  --------
  api.fn.com  
                    /   test-fn:80 (<none>)
  lb.fn.com   
                    /   test-fn:90 (<none>)
  ui.fn.com   
                    /flow   test-fn-ui:3000 (<none>)

In order to talk to Fn the following HTTP request must be performed:

curl <ingress-controller-ip-address>:80/v2/apps -H 'Host: api.fn.com'
{"items":[]}

Problem

Fn CLI doesn't let developers specify Host header for HTTP requests created internally.

Possible ways to solve this problem

So, the problem is not in CLI itself, but in fn_go and API spec.

There's a need to add Host header to the spec for each request definition as shown here

[denismakogon]

Didn't know that an ingress controller can be used as a proxy instance, closing.