node_exporter/collector/collector.go

// Exporter is a prometheus exporter using multiple Factories to collect and export system metrics.
package collector

import (
	"github.com/prometheus/client_golang/prometheus"
)

var Factories = make(map[string]func(Config, prometheus.Registry) (Collector, error))

// Interface a collector has to implement.
type Collector interface {
	// Get new metrics and expose them via prometheus registry.
	Update() (n int, err error)
}

type Config struct {
	Attributes map[string]string `json:"attributes"`
}