publish temp/fan speed metrics from lm-sensors

2016-07-17 17:45:54 -04:00 · 2016-07-17 17:45:54 -04:00 · dca182652c
parent d52a1e2c92
commit dca182652c
1 changed files with 76 additions and 0 deletions
--- a/sensor-exporter/main.go
+++ b/sensor-exporter/main.go
@ -0,0 +1,76 @@
+package main
+
+import (
+	"flag"
+	"net/http"
+	_ "net/http/pprof"
+	"strings"
+	"time"
+
+	"github.com/md14454/gosensors"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+var (
+	fanspeed = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Namespace: "sensor",
+		Subsystem: "lm",
+		Name:      "fan_speed_rpm",
+		Help:      "fan speed (rotations per minute).",
+	}, []string{"fantype", "chip", "adaptor"})
+
+	temperature = prometheus.NewGaugeVec(prometheus.GaugeOpts{
+		Namespace: "sensor",
+		Subsystem: "lm",
+		Name:      "temperature_celsius",
+		Help:      "temperature in celsius",
+	}, []string{"temptype", "chip", "adaptor"})
+)
+
+func init() {
+	prometheus.MustRegister(fanspeed)
+	prometheus.MustRegister(temperature)
+}
+
+func main() {
+	var (
+		listenAddress = flag.String("web.listen-address", ":9255", "Address on which to expose metrics and web interface.")
+		metricsPath   = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics.")
+	)
+	flag.Parse()
+
+	go collect()
+
+	http.Handle(*metricsPath, prometheus.Handler())
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(`<html>
+			<head><title>Sensor Exporter</title></head>
+			<body>
+			<h1>Sensor Exporter</h1>
+			<p><a href="` + *metricsPath + `">Metrics</a></p>
+			</body>
+			</html>`))
+	})
+	http.ListenAndServe(*listenAddress, nil)
+}
+
+func collect() {
+	gosensors.Init()
+	defer gosensors.Cleanup()
+	for {
+		for _, chip := range gosensors.GetDetectedChips() {
+			chipName := chip.String()
+			adaptorName := chip.AdapterName()
+			for _, feature := range chip.GetFeatures() {
+				if strings.HasPrefix(feature.Name, "fan") {
+					fanspeed.WithLabelValues(feature.GetLabel(), chipName, adaptorName).Set(feature.GetValue())
+				} else if strings.HasPrefix(feature.Name, "temp") {
+					temperature.WithLabelValues(feature.GetLabel(), chipName, adaptorName).Set(feature.GetValue())
+				}
+			}
+
+		}
+		time.Sleep(1 * time.Second)
+	}
+}