prometheus

type Config struct {
	DBName           string             // use DBName as metrics label
	RefreshInterval  uint32             // refresh metrics interval.
	PushAddr         string             // prometheus pusher address
	PushUser         string             // prometheus pusher basic auth user
	PushPassword     string             // prometheus pusher basic auth password
	StartServer      bool               // if true, create http server to expose metrics
	HTTPServerPort   uint32             // http server port
	MetricsCollector []MetricsCollector // collector
	Labels           map[string]string  // metrics labels
}

type DBStats struct {
	MaxOpenConnections prometheus.Gauge // Maximum number of open connections to the database.

	// Pool status
	OpenConnections prometheus.Gauge // The number of established connections both in use and idle.
	InUse           prometheus.Gauge // The number of connections currently in use.
	Idle            prometheus.Gauge // The number of idle connections.

	// Counters
	WaitCount         prometheus.Gauge // The total number of connections waited for.
	WaitDuration      prometheus.Gauge // The total time blocked waiting for a new connection.
	MaxIdleClosed     prometheus.Gauge // The total number of connections closed due to SetMaxIdleConns.
	MaxLifetimeClosed prometheus.Gauge // The total number of connections closed due to SetConnMaxLifetime.
	MaxIdleTimeClosed prometheus.Gauge // The total number of connections closed due to SetConnMaxIdleTime.
}

type MetricsCollector interface {
	Metrics(*Prometheus) []prometheus.Collector
}

type MySQL struct {
	Prefix        string
	Interval      uint32
	VariableNames []string
	// contains filtered or unexported fields
}

type Postgres struct {
	Prefix        string
	Interval      uint32
	VariableNames []string
	// contains filtered or unexported fields
}

type Prometheus struct {
	*gorm.DB
	*DBStats
	*Config

	Labels     map[string]string
	Collectors []prometheus.Collector
	// contains filtered or unexported fields
}