[Helm] Supports HostNetwork Mode for each components

[ssup2]

This PR adds support for hostNetwork mode in the Helm Chart.

Using Host Network mode can be useful in environments where the host and pods share the same network CIDR (non-overlay network), as it prevents unnecessary IP allocation for daemon pods, thereby reducing overall IP usage. This option is beneficial in cloud environments such as AWS, Azure, and GCP.

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[ssup2]

@elezar Hello. Please review this pr?

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[ssup2]

@elezar Hi! I'd appreciate it if you could take a look at this PR when you get a moment.

[rahulait]

Thanks @ssup2 . Can you please also add default value to values.yaml so that its easier to find what one can set. So something like:

# In the devicePlugin section (~line 103):
devicePlugin:
  enabled: true
  # enableHostNetwork when set to true runs the pod with hostNetwork: true.
  # This can be useful in non-overlay network environments (e.g., AWS, Azure, GCP)
  # to avoid unnecessary IP allocation for daemon pods.
  enableHostNetwork: false

Similar change for gfd and mps as well.

[Copilot]

Pull request overview

Adds optional per-component HostNetwork support to the Helm chart so daemon pods can run on the node network and avoid allocating pod IPs in non-overlay environments.

Changes:

• Add hostNetwork: true + dnsPolicy: ClusterFirstWithHostNet to the device plugin DaemonSet when devicePlugin.enableHostNetwork is set.
• Add hostNetwork: true + dnsPolicy: ClusterFirstWithHostNet to the GFD DaemonSet when gfd.enableHostNetwork is set.
• Add hostNetwork: true + dnsPolicy: ClusterFirstWithHostNet to the MPS control daemon DaemonSet when mps.enableHostNetwork is set.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
deployments/helm/nvidia-device-plugin/templates/daemonset-device-plugin.yml	Conditionally enables host networking for the device plugin pod.
deployments/helm/nvidia-device-plugin/templates/daemonset-gfd.yml	Conditionally enables host networking for the GFD pod.
deployments/helm/nvidia-device-plugin/templates/daemonset-mps-control-daemon.yml	Conditionally enables host networking for the MPS control daemon pod.

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[rahulait]

Gentle reminder @ssup2 . Please update the values.yaml with default values so that its easier to find how it can be configured.

[rahulait]

/ok to test 20f2c29