feat: dra dynamic labels

[yaroslavborbat]

Description

USB-over-IP Port Limitation in Cluster Environment

When using USB-over-IP (usbip) to share USB devices across cluster nodes, there is a hardware limitation of 16 available ports per node:

• 8 ports for USB 2.0 (High Speed)
• 8 ports for USB 3.0 (SuperSpeed)

USB devices can be attached from any node in the cluster via usbip.

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Node Annotations

Each node maintains the following dynamically updated annotations:

• usb.virtualization.deckhouse.io/usbip-total-ports — total number of available usbip ports
• usb.virtualization.deckhouse.io/usbip-used-ports — number of currently used usbip ports
• usb.virtualization.deckhouse.io/usbip-address — usbip server address of the node

These annotations are updated dynamically based on current port usage.

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Node Selector Configuration

The nodeSelector supports two possible values:

• virtualization.deckhouse.io/usb-gateway = any
• virtualization.deckhouse.io/usb-gateway = <node name>

Where:

• any allows selecting any suitable node in the cluster
• <node name> restricts selection to a specific node

Checklist

• The code is covered by unit tests.
• e2e tests passed.
• Documentation updated according to the changes.
• Changes were tested in the Kubernetes cluster manually.