Initial release

Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>

main.go

@@ -0,0 +1,38 @@
+package main
+
+import (
+	"log"
+	"net/http"
+	"os"
+	"tailscale-exporter/pkg/metrics"
+	"tailscale-exporter/pkg/tailscale"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+)
+
+var addr string
+
+func init() {
+	port := os.Getenv("PORT")
+	if port != "" {
+		addr = ":" + port
+	} else {
+		addr = ":8080"
+	}
+}
+
+func main() {
+	client, err := tailscale.New()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	reg := prometheus.NewRegistry()
+	metrics.Collect(client, reg)
+
+	http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{Registry: reg}))
+	log.Printf("tailscale-exporter")
+	log.Printf("Listening on %s", addr)
+	log.Fatal(http.ListenAndServe(addr, nil))
+}