Each node runs the same pods and all the nodes do the same. I am using Istio ingress gateway with the NodePort. I need traffic that enters NodePort to be routed to pods not leaving the node.
I am unable to run istio-ingressgateway on each node to do that. Is it possible for each node to route its own traffic?
Bare-metal, k8s 1.19.4, Istio 1.8
As @Jonas mentioned in comments
The problem is that there is just one istio-ingressgateway pod on node1 and all the traffic from node2 have to come to node1
You can use kubectl scale to scale your ingress gateway replicas. Below command will create 3 ingress gateway pods instead of just one.
kubectl scale --replicas=3 deployment/istio-ingressgateway -n istio-systemAdditionally you can set this up with istio operator replicaCount value.
Note that if you use cloud there might be hpa configured and it might immediately scales back up the pods. There is github issue about that. You can also set hpa min and max replicas with istio.