tailscale-exporter/main.go

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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 Version = "dev"
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 - %s", Version)
log.Printf("Listening on %s", addr)
log.Fatal(http.ListenAndServe(addr, nil))
}