Can I use ServiceLB outside of k3s?

I've personally switched from ServiceLB to Kube-vip for my K3s clusters, and it's been great! I don't have to use NodePort since I have full IPs. I also rely on Traefik for my ingress, which works well for me.

Have you considered alternatives like HAProxy or Traefik? They can be deployed as NodePort services, but that means you'd use higher port numbers since you won't have port 80 open. You might also opt for a HostPort deployment, but that limits you to one replica per node. With ServiceLB, you can have multiple replicas on a single node for better rolling updates. Just wondering if you've thought about these options for your ingress needs!

Just a heads up, I ran into challenges with Kube-vip and MetalLB using ARP or BGP protocols that are often blocked by cloud providers. If you're stuck on cloud VMs, that might complicate things for you!

I've given up on ServiceLB due to limitations and switched to hostports instead. Sure, it’s not ideal, but if you want to dive deeper into ServiceLB alternatives, check out these GitHub links: One is for a standalone HAProxy load balancer, and another might offer a similar function. It's worth exploring!

Actually, ServiceLB can run standalone like the RKE2 cloud controller manager. You would just need to disable the node features and focus on the load balancer controller. There's a GitHub repo with more info on it. Have you checked it out?