metrics

var (
	FedVolumeBackupStatusCounterVec = prometheus.NewCounterVec(prometheus.CounterOpts{
		Namespace: "fed",
		Subsystem: "volume_backup",
		Name:      "status",
	}, []string{LabelNamespace, LabelTC, LabelStatus})
	FedVolumeBackupTotalTimeCounterVec = prometheus.NewCounterVec(prometheus.CounterOpts{
		Namespace: "fed",
		Subsystem: "volume_backup",
		Name:      "total_time_sec",
	}, []string{LabelNamespace, LabelTC})
	FedVolumeBackupTotalSizeCounterVec = prometheus.NewCounterVec(prometheus.CounterOpts{
		Namespace: "fed",
		Subsystem: "volume_backup",
		Name:      "total_size_gb",
	}, []string{LabelNamespace, LabelTC})
	FedVolumeBackupCleanupStatusCounterVec = prometheus.NewCounterVec(prometheus.CounterOpts{
		Namespace: "fed",
		Subsystem: "volume_backup_cleanup",
		Name:      "status",
	}, []string{LabelNamespace, LabelTC, LabelStatus})
	FedVolumeBackupCleanupTotalTimeCounterVec = prometheus.NewCounterVec(prometheus.CounterOpts{
		Namespace: "fed",
		Subsystem: "volume_backup_cleanup",
		Name:      "total_time_sec",
	}, []string{LabelNamespace, LabelTC})
)

var (
	// ReconcileTotal is a prometheus counter metrics which holds the total
	// number of reconciliations per controller. It has two labels. controller label refers
	// to the controller name and result label refers to the reconcile result i.e
	// success, error, requeue, requeue_after.
	ReconcileTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
		Name: "controller_runtime_reconcile_total",
		Help: "Total number of reconciliations per controller",
	}, []string{"controller", "result"})

	// ReconcileErrors is a prometheus counter metrics which holds the total
	// number of errors from the Reconciler.
	ReconcileErrors = prometheus.NewCounterVec(prometheus.CounterOpts{
		Name: "controller_runtime_reconcile_errors_total",
		Help: "Total number of reconciliation errors per controller",
	}, []string{"controller"})

	// ReconcileTime is a prometheus metric which keeps track of the duration
	// of reconciliations.
	ReconcileTime = prometheus.NewHistogramVec(prometheus.HistogramOpts{
		Name: "controller_runtime_reconcile_time_seconds",
		Help: "Length of time per reconciliation per controller",
		Buckets: []float64{0.005, 0.01, 0.025, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0,
			1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5, 6, 7, 8, 9, 10, 15, 20, 25, 30, 40, 50, 60},
	}, []string{"controller"})

	// WorkerCount is a prometheus metric which holds the number of
	// concurrent reconciles per controller.
	WorkerCount = prometheus.NewGaugeVec(prometheus.GaugeOpts{
		Name: "controller_runtime_max_concurrent_reconciles",
		Help: "Maximum number of concurrent reconciles per controller",
	}, []string{"controller"})

	// ActiveWorkers is a prometheus metric which holds the number
	// of active workers per controller.
	ActiveWorkers = prometheus.NewGaugeVec(prometheus.GaugeOpts{
		Name: "controller_runtime_active_workers",
		Help: "Number of currently used workers per controller",
	}, []string{"controller"})
)

var (
	ClusterSpecReplicas = prometheus.NewGaugeVec(
		prometheus.GaugeOpts{
			Namespace: "tidb_operator",
			Subsystem: "cluster",
			Name:      "spec_replicas",
			Help:      "Desired replicas of each component in TidbCluster",
		}, []string{LabelNamespace, LabelName, LabelComponent})

	ClusterUpdateErrors = prometheus.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "tidb_operator",
			Subsystem: "cluster",
			Name:      "update_errors",
			Help:      "Number of errors generated in each stage when updating TiDB Clusters",
		}, []string{LabelNamespace, LabelName, LabelComponent})
)