AKS public IP load balancer

Question

Hi,

I'm new on AKS.

When i create a new AKS cluster, by default is created a public load balancer and a public ip.

This public ip is used only for egress correct?

Any ingress service deployed after create a new public ip, correct?

Answer 1

Hi @IC Admin

Thanks for posting your question here in Microsoft Q&A,

That is correct, the default public ip in an AKS configured with outbound type Load Balancer is for the egress traffic.
If in your AKS cluster you create services of type LoadBalancer a new Public IP will be created and assign to that service via that Azure Load Balancer.
https://learn.microsoft.com/en-us/azure/aks/egress-outboundtype#outbound-type-of-loadbalancer

You can also configure services/ingress with private IP from within the cluster vnet, usually used to expose workloads from the AKS cluster only towards other Azure Resources,
https://learn.microsoft.com/en-us/azure/aks/internal-lb?tabs=set-service-annotations#create-an-internal-load-balancer

Best Regards,
Gonçalo Correia