Implement basic vodafone station exporter

2020-12-04 09:12:02 +01:00 · 2020-12-04 09:12:02 +01:00 · fb130d2dc9
commit fb130d2dc9
parent 499736e5bf
3 changed files with 340 additions and 20 deletions
--- a/main.go
+++ b/main.go
@ -0,0 +1,64 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"github.com/fluepke/vodafone-station-exporter/collector"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/prometheus/common/log"
+	"net/http"
+	"os"
+)
+
+const version = "0.0.1"
+
+var (
+	showVersion             = flag.Bool("version", false, "Print version and exit")
+	listenAddress           = flag.String("web.listen-address", "[::]:9420", "Address to listen on")
+	metricsPath             = flag.String("web.telemetry-path", "/metrics", "Path under which to expose metrics")
+	vodafoneStationUrl      = flag.String("vodafone.station-url", "http://192.168.0.1", "Vodafone station URL. For bridge mode this is 192.168.100.1 (note: Configure a route if using bridge mode)")
+	vodafoneStationPassword = flag.String("vodafone.station-password", "How is the default password calculated? mhmm", "Password for logging into the Vodafone station")
+)
+
+func main() {
+	flag.Parse()
+
+	if *showVersion {
+		fmt.Println("vodafone-station-exporter")
+		fmt.Printf("Version: %s\n", version)
+		fmt.Println("Author: @fluepke")
+		fmt.Println("Prometheus Exporter for the Vodafone Station (CGA4233DE)")
+		os.Exit(0)
+	}
+
+	startServer()
+}
+
+func startServer() {
+	log.Infof("Starting vodafone-station-exporter (version %s)", version)
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte(`<html>
+            <head><title>vodafone-station-exporter (Version ` + version + `)</title></head>
+            <body>
+            <h1>vodafone-station-exporter</h1>
+            <a href="/metrics">metrics</a>
+            </body>
+            </html>`))
+	})
+	http.HandleFunc(*metricsPath, handleMetricsRequest)
+
+	log.Infof("Listening on %s", *listenAddress)
+	log.Fatal(http.ListenAndServe(*listenAddress, nil))
+}
+
+func handleMetricsRequest(w http.ResponseWriter, request *http.Request) {
+	registry := prometheus.NewRegistry()
+	registry.MustRegister(&collector.Collector{
+		Station: collector.NewVodafoneStation(*vodafoneStationUrl, *vodafoneStationPassword),
+	})
+	promhttp.HandlerFor(registry, promhttp.HandlerOpts{
+		ErrorLog:      log.NewErrorLogger(),
+		ErrorHandling: promhttp.ContinueOnError,
+	}).ServeHTTP(w, request)
+}