Node System Info
data class NodeSystemInfo(val architecture: String, val bootID: String, val containerRuntimeVersion: String, val kernelVersion: String, val kubeProxyVersion: String, val kubeletVersion: String, val machineID: String, val operatingSystem: String, val osImage: String, val systemUUID: String)
NodeSystemInfo is a set of ids/uuids to uniquely identify the node.