k8s: helm install ingress-nginx only create IngressClass?

Question

I'm setting up two ingresses in different namespaces with ingress-nginx (https://github.com/kubernetes/ingress-nginx). My understanding is that I need to install ingress-nginx for each namespace, which creates the IngressClass I need.

I've installed the ingress-nginx with this:

helm install ingress-ns1 ingress-nginx/ingress-nginx  \ 
--namespace ns1 \
--set controller.ingressClassResource.name=ns1-class \
--set controller.scope.namespace=ns1 \
--set controller.ingressClassByName=true

then the same again for namespace ns2. My understanding this created the IngressClasses I need and seems to work.

I've also got an Ingress configuration templated by helm that uses the IngresClasses:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: "{{ .Values.ingress.name }}"
  namespace: "{{ .Values.namespace }}"
  annotations:
    cert-manager.io/cluster-issuer: "{{ .Values.issuer.name }}"
    nginx.ingress.kubernetes.io/from-to-www-redirect: "true"
spec:
  ingressClassName: {{ .Values.ingress.ingressClassName }}
  rules:
  {{- range $v := .Values.ingress.rules }}
    - host: {{ $v.host.name }}
      http:
        paths:
  {{- range $p := $v.host.paths }}
          - path: {{ $p.path.path }}
            pathType: Prefix
            backend:
              service:
                name: {{ $p.path.name }}
                port:
                  number: {{ $p.path.port }}
  {{- end }}

  {{- end }}

  tls:
    - hosts:
      {{- range $v := .Values.ingress.rules }}
      - {{ $v.host.name }}
      {{- end }}
      secretName: "{{ .Values.issuer.name }}"

This seems to work and uses the IngressClass which i've templated into {{ .Values.ingress.ingressClassName }}. These end up being ns1-class and ns2-class.

However. I then end up with 4 loadbalancers created, rather than two! Looking at k9s, seems that installing the ingress-nginx with helm installs the two IngressClasses which I want, but also adds its own ingress controller pods. I only want the two created with my Ingress definition above.

How do I still setup the IngressClass to use ingress-nginx, but not have the controller created by installing ingress-nginx?

I've read this: (https://kubernetes.github.io/ingress-nginx/user-guide/multiple-ingress/#multiple-ingress-controllers) a few times, I find it quite confusing as there are snippets of configuration that I don't know what to do with/where to put.

k8s: helm install ingress-nginx only create IngressClass?

0 Answers0