const (
	// NetworkPluginOperationsKey is the key for operation count metrics.
	NetworkPluginOperationsKey = "network_plugin_operations"
	// NetworkPluginOperationsLatencyKey is the key for the operation latency metrics.
	NetworkPluginOperationsLatencyKey = "network_plugin_operations_duration_seconds"
)

var (
	// NetworkPluginOperationsLatency collects operation latency numbers by operation
	// type.
	NetworkPluginOperationsLatency = metrics.NewHistogramVec(
		&metrics.HistogramOpts{
			Subsystem:      kubeletSubsystem,
			Name:           NetworkPluginOperationsLatencyKey,
			Help:           "Latency in seconds of network plugin operations. Broken down by operation type.",
			Buckets:        metrics.DefBuckets,
			StabilityLevel: metrics.ALPHA,
		},
		[]string{"operation_type"},
	)
)