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Hello k8s redditors ! I have just published a new Kubernetes operator https://github.com/didil/paperlb and accompanying article https://didil.medium.com/paperlb-fc4c28a82acb and would love your honest feedback. The idea behind PaperLB is to allow "LoadBalancer" type services to work with external network load balancers in any environment. PaperLB allows you to use an external L4 Load Balancer of your choice (an nginx server for example) in front of your Kubernetes cluster services. It should work on your development clusters running locally as well as cloud virtual machines or bare metal. Thanks !
Not to take anything away from OP but MetalLB also provides local load balancing.
The IP Address Sharing link I provided above discusses the issue. Originally Kubernetes load balancers didn't support both UDP and TCP on the same IP address. It looks like this may have been recently fixed but I don't know if it's GA yet (see KEP-1435). MetalLB solved this via an annotation.