Move exporter to main and listen/interval to flags

collector/collector.go

@@ -0,0 +1,21 @@
+// 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 []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)
+
+	// Returns the name of the collector
+	Name() string
+}
+
+type Config struct {
+	Attributes map[string]string `json:"attributes"`
+}