I'm following this guide to preserve source ip for service type nodeport.

kubectl create deployment source-ip-app --image=k8s.gcr.io/echoserver:1.4

kubectl expose deployment source-ip-app --name=clusterip --port=80 --target-port=8080

At this point my service is accessible externally with nodeip:nodeport

When I change the service traffic policy,

kubectl patch svc nodeport -p '{"spec":{"externalTrafficPolicy":"Local"}}'

my service is not accessible.

I found a similar issue , But the solution is not much helpful or not understandable for me . I saw some github threads which says its something to do with hostname override in kube proxy , I'm not clear with it too.

I'm using kubernetes version v1.15.3. Kube proxy is running in iptables mode. I have a single master node and few worker nodes. I'm facing the same issue in my minikube too.

Any help would be greatly appreciated.