DeviceClassSpec
DeviceClassSpec is used in a [DeviceClass] to define what can be allocated and how to configure it.
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Config defines configuration parameters that apply to each device that is claimed via this class. Some classses may potentially be satisfied by multiple drivers, so each instance of a vendor configuration applies to exactly one driver. They are passed to the driver, but are not considered while allocating the claim.
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Each selector must be satisfied by a device which is claimed via this class.
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Only nodes matching the selector will be considered by the scheduler when trying to find a Node that fits a Pod when that Pod uses a claim that has not been allocated yet *and* that claim gets allocated through a control plane controller. It is ignored when the claim does not use a control plane controller for allocation. Setting this field is optional. If unset, all Nodes are candidates. This is an alpha field and requires enabling the DRAControlPlaneController feature gate.
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