Kubernetes has 3 types of services namely. ClusterIP, NodePort, and load balancer. Ingress makes http routes outside the cluster available for services inside the cluster. If you are looking for the best Kubernetes ingress controller comparison visit https://kubevious.io/blog/post/comparing-top-ingress-controllers-for-kubernetes/.
One thing you should be aware of by now is that penetration is not the type of service that Kubernetes offers. Meanwhile, Kubernetes Ingress Controller mainly uses load balancers to manage traffic and intruders.
Ingress Controller is a smart load balancer. Ingress is a high-level abstraction that is responsible for enabling simple HTTP routing by host or URL. Always apply with a third-party provider. This service is nothing more than an entry controller.
The Kubernetes login controller is responsible for reading Ingress resource information and processing that data. Ingress is tightly integrated into the K8, which means your existing workflows around kubectl are likely to flourish well into penetration management.
It should be noted that inbound controllers do not usually require external balancing loads, but inbound controllers only add additional routing and control levels for the balancing load.
Kubernetes Ingress controller with load balancer
Regardless of your entry strategy, you may need to start with external balance weights. As a result, data traffic is routed to the K8 cluster service, which performs service-specific routing. In this setup, your load balance provides a stable endpoint that is nothing more than an IP address for accessing external traffic.
Both the intrusion controller and the K8 service require an external balance load. Therefore, NodePort was not designed to be used directly in production.