Allow setting allocateLoadBalancerNodePorts option to Controller Service

[ecusnir]

Problem

We are using MetalLB for creating LoadBalancer type Services (including ingress controller), which doesn't require using node ports. This option can be adjusted from the Service spec. However, this is not configurable from the helm chart, so allocating is always set to true.

Proposed solution

It would be an improvement to stop allocating node ports when they are not needed. Adding this to the chart might also help other scenarios.

controller:
  service:
    allocateLoadBalancerNodePorts: false

[k8s-ci-robot]

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[github-actions]

This is stale, but we won't close it automatically, just bare in mind the maintainers may be busy with other tasks and will reach your issue ASAP. If you have any question or request to prioritize this, please reach #ingress-nginx-dev on Kubernetes Slack.