var (
	SyncProxyRulesLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: kubeProxySubsystem,
			Name:      "sync_proxy_rules_duration_seconds",
			Help:      "SyncProxyRules latency in seconds",
			Buckets:   prometheus.ExponentialBuckets(0.001, 2, 15),
		},
	)

	DeprecatedSyncProxyRulesLatency = prometheus.NewHistogram(
		prometheus.HistogramOpts{
			Subsystem: kubeProxySubsystem,
			Name:      "sync_proxy_rules_latency_microseconds",
			Help:      "(Deprecated) SyncProxyRules latency in microseconds",
			Buckets:   prometheus.ExponentialBuckets(1000, 2, 15),
		},
	)

	// SyncProxyRulesLastTimestamp is the timestamp proxy rules were last
	// successfully synced.
	SyncProxyRulesLastTimestamp = prometheus.NewGauge(
		prometheus.GaugeOpts{
			Subsystem: kubeProxySubsystem,
			Name:      "sync_proxy_rules_last_timestamp_seconds",
			Help:      "The last time proxy rules were successfully synced",
		},
	)
)