Help:           "Volume scheduling stage error count",
			StabilityLevel: metrics.ALPHA,
		},
		[]string{"operation"},
	)
)

// RegisterVolumeSchedulingMetrics is used for scheduler, because the volume binding cache is a library
// used by scheduler process.
func RegisterVolumeSchedulingMetrics() {
	legacyregistry.MustRegister(VolumeBindingRequestSchedulerBinderCache)
	legacyregistry.MustRegister(VolumeSchedulingStageFailed)

)

var registerMetrics sync.Once

// Register all metrics.
func Register() {
	// Register the metrics.
	registerMetrics.Do(func() {
		RegisterMetrics(metricsList...)
		volumebindingmetrics.RegisterVolumeSchedulingMetrics()
	})
}

// RegisterMetrics registers a list of metrics.
// This function is exported because it is intended to be used by out-of-tree plugins to register their custom metrics.