[Feature discussion] Loadbalancer support to route traffic directly to Pods instead of NodePort.

[Wang Bo]

Loadbalancer is able to route traffic directly to Pods instead of NodePort for some cloud platforms with cni supported.
such as:

• GKE container-native LB: https://cloud.google.com/kubernetes-engine/docs/concepts/container-native-load-balancing
• EKS NLB IP mode: aws/containers-roadmap#981

So should we add a new loop like syncEndpoint into loadbalancer controller to update loadbalacer with pods ips

func (s *Controller) Run(ctx context.Context, workers int) {
	for i := 0; i < workers; i++ {
		go wait.UntilWithContext(ctx, s.worker, time.Second)
	}

	go s.nodeSyncLoop(ctx, workers)

        // Add syncEndpoint code here
}

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/lifecycle stale

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/lifecycle rotten

[Ole Markus With]

AWS at least seems pretty clear they will deprecate the service controller for their own AWS Load Balancer Controller.

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/close not-planned

[Kubernetes Prow Robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

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/close not-planned

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