nginx-ingress-controller running on a NodePort service should work well enough here - just set DNS records to round-robin onto your machines. This will work on

nginx-ingress-controller running on a NodePort service should work well enough here - just set DNS records to round-robin onto your machines. This will work on any network topology, and already works on k8s. If you want any better load balancing and/or failover, you'll have to either have something provided by your cloud provider (an LBaaS, and then tie that into Kubernetes via some controller), or have a network topology that can be exploited for this (shared L2 with a VIP or L3 with BGP, so that you can use something like MetalLB). This is not a Kubernetes problem, but a networking problem.