Is it necessary to set up a reverse proxy in front of a kubernetes cluster?

Question

I have set up a kube.netes cluster using kubeadm on a server, which is using an ingress controller (nginx) and this is working as intended. However, I used to deploy a nginx reverse proxy when I was using docker and to forward traffic to the containers. I have read that the ingress controller embarks a reverse proxy but I am not sure if it is sufficient and how to configure it (like IP ban when too many requests are sent in 1 s, ...).

I am aware that it can be done by modifying the port of the cluster and forwarding the traffic from the reverse proxy to the ingress controller but I don't know if it has any utility.

Answer 1

If you have more control over your inbound traffic, you can test multiple ingresses, not only Nginx. It will depend on the purpose of your requirement, although Nginx supports rate-limit . I suggest test others ingresses but try to install metal-lb firstly. So you can assign a specific Loadbalancer IP for each ingress.