Why are random load balancers generated

[codeagencybe]

@mysticaltech

Is this normal behaviour that the cluster is generating new load balancers adhoc?
I have installed Prometheus and grafana, Kubecost and YygabyteDB from the Rancher app catalog.
I can not remember that I did something special regarding LB or anything. In fact, in the Rancher shell it told me I needed to port forward stuff to see the web UI.
But it doesn't make sense why it's generating new LB's adhoc as I already have 1 that should cover everything that needs to go into the cluster?

[mysticaltech]

@codeagencybe Those might have been requested by the new helm charts you're now using. You can instead force them to use your ingress controller.

To verify the above hypothesis, just issue kubectl get svc -A, and you should see multiple LBs.

[mysticaltech]

@fschrempf You only need to dive into the values.yaml of your helm chart and tell it to use ingress definitions instead of deploying a LB service.

[fschrempf]

Ok, I'm still struggling to understand how to do that. I can disable the included ingress of the helm chart (I'm using the bitnami nginx chart for testing) by setting ingress.enabled = false.

I assume I could use ingress.ingressClassName to reference an IngressClass or create a default IngressClass for the Traefik LB!?
I tried to add something like below, but couldn't find out how to reference the existing Traefik ingress controller.

apiVersion: networking.k8s.io/v1
kind: IngressClass
metadata:
  labels:
    app.kubernetes.io/component: traefik
  name: traefik
  annotations:
    ingressclass.kubernetes.io/is-default-class: "true"
spec:
  controller: ???

[mysticaltech]

@fschrempf On the contrary, you want to enable ingress, with ingress.enabled = true. And you do not need to do anything else, it will create the ingress definitions for you! It should work without creating new LBs.

[mysticaltech]

If that is not still clear, look at services with kubectl get svc -A and ingresses with kubectl get ing -A, and see which ingresses connect to what services. Try to reason from that perspective.

[fschrempf]

Thanks for your help and the clarification! I couldn't get the bitnami nginx chart to not deploy its own LB for some reason, so I gave up on this test. Using the chart for the actual app I want to deploy (Nextcloud) it works just as you describe and as I would expect it.