cetic/helm-nifi

[cetic/helm-nifi] ingress path other than / doesn't work

RabbidDog opened this issue · 5 comments

RabbidDog commented

Describe the bug
the application UI should be accessible though the custom ingress path

Version of Helm and Kubernetes:
helm: v2.14.3
kubernetes: v1.15.1

What happened:
the chart allows us to set the ingress.path variable. I would like to host the application at a path other than '/'. for e.g. at '/demo-nifi'. So I expected that setting ingress.path: '/demo-nifi' would work without additional changes i.e the application ui will be available at host/demo-nifi/nifi and all calls would be made to host/demo-nifi/{..}. But all REST calls from the browser assume that the urls are host/{..}

What you expected to happen:
ui uses custom path set in ingress.path

How to reproduce it (as minimally and precisely as possible):
set ingress.path: /demo-nifi

Anything else we need to know:

if forgive any ignorance about possible advanced configuration that can be done to resolve this issue

alexnuttinck commented

Hello @RabbidDog,

Thanks for your bug report, I was able to reproduce your bug.

When the ingress.path: /nifi, it works fine.
When i set another path (for instance /demo-nifi), nifi redirects me automatically to /nifi which ends in 404 error.

Maybe there is a configuration in nifi to use another path than /nifi.

RabbidDog commented

Thanks for the info. I will go through the docs and try to find a solution that works for me.

RabbidDog commented

So, we finally decided to use nifi in our cluster and figured out that the following changes in the values.yaml will do the trick:

properties:
  safetyValve:
    nifi.web.proxy.context.path: /demo, /demo/nifi

for Traefik ingress controller

ingress:
  enabled: true
  path: /demo
  annotations:
    kubernetes.io/ingress.class: traefik
    traefik.ingress.kubernetes.io/rule-type: PathPrefixStrip
    ingress.kubernetes.io/custom-request-headers: X-ProxyContextPath:/demo||X-ProxyPort:80||X-ProxyScheme:http

For Nginx ingress controller

ingress:
  enabled: true
  path: /demo(/|$)(.*)
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/rewrite-target: /$2
    nginx.ingress.kubernetes.io/configuration-snippet: |
      proxy_set_header 'X-ProxyContextPath' '/demo';
      proxy_set_header 'X-ProxyPort' '80';
      proxy_set_header 'X-ProxyScheme' 'http';
  • 👍2
alexnuttinck commented

Thanks for the explanation @RabbidDog !