Kubernetes ingresses are not picked up by the ingress gateway

msv · May 24, 2022, 2:36pm

Hi people!

I’m stumped. I want to use Kubernetes ingresses to configure the ingress gateway. But the ingresses are not picked up by the ingress gateway. Can anybody offer any hints?

I have created an ingressclass and ingresses as described here: Istio / Kubernetes Ingress

To verify that the ingress gateway worked at all I created an equivalent gateway and a couple of virtualservices and they where picked up and work.

I’m using version 1.13.4 of istio.

Shuming_Xin · May 29, 2022, 9:26am

I got the same issue on EKS. The istio version is 1.13.3. But the ingress does work on my local minikube with istio 1.13.1

msv · May 30, 2022, 6:31am

Interesting. I’m also on EKS. Do you by any chance also have AWS Load Balancer Controller deployed?

Shuming_Xin · May 31, 2022, 8:57am

My deployment is alb loadbalancer → alb ingress → istio-ingressgateway service
Everything works if I manually created istio gateway and virtual service for an application. But it fails to get access to the application if I just created a k8s ingress and let Istio automatically create gw and vs. It always returns 404.

CoderCooker · June 21, 2022, 1:51am

One basic checking - ensure your ingress is configured to use the ingress gateway controller

github.com

projectcontour/contour/blob/45ff8f7a319443b22159261ddb24a4e72f6e1428/internal/controller/gatewayclass.go#L149

      
        
            	if err := r.client.List(context.Background(), &gatewayClasses); err != nil {
            		return reconcile.Result{}, fmt.Errorf("error listing gatewayclasses: %w", err)
            	}
            
            
	var controlledClasses controlledClasses
            
            
	for i := range gatewayClasses.Items {
            		// avoid loop pointer issues
            		gc := gatewayClasses.Items[i]
            
            
		if gc.Spec.ControllerName != r.controller {
            			// different controller, ignore.
            			continue
            		}
            
            
		controlledClasses.add(&gc)
            	}
            
            
	// no controlled gatewayclasses, trigger a delete
            	if controlledClasses.len() == 0 {
            		r.log.WithField("name", request.Name).Info("failed to find gatewayclass")

Otherwise, I do not believe it will be picked up by the gateway

msv · June 21, 2022, 8:39am

Thanks for the answer. But this code is from Contour. I don’t see how it has anything to do istio.

CoderCooker · June 21, 2022, 4:51pm

Previous is just an example to help you understand the filter.
You should follow your controller.

ajaymater · June 30, 2022, 10:33pm

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Kubernetes ingresses are not picked up by the ingress gateway

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