92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"log"
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"net/http"
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"time"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/showwin/speedtest-go/speedtest"
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)
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var (
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latency = time.Duration(0)
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downspeed = 0.0
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upspeed = 0.0
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interval int
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port int
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)
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func main() {
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flag.IntVar(&interval, "interval", 30, "Duration, in minutes, between speedtest runs")
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flag.IntVar(&port, "port", 9091, "The port to listen on")
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go (func() {
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for {
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checkSpeed()
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time.Sleep(time.Minute * time.Duration(interval))
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}
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})()
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collector := newSpeedCollector()
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prometheus.MustRegister(collector)
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http.Handle("/metrics", promhttp.Handler())
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log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", port), nil))
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}
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func checkSpeed() {
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log.Println("Performing speedtest")
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user, _ := speedtest.FetchUserInfo()
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serverList, _ := speedtest.FetchServers(user)
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targets, _ := serverList.FindServer([]int{})
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target := targets[0]
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log.Printf("Testing against server: %s - %s\n", target.Name, target.Sponsor)
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target.PingTest()
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target.DownloadTest(false)
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target.UploadTest(false)
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latency = target.Latency
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downspeed = target.DLSpeed
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upspeed = target.ULSpeed
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log.Printf("Finished speedtest. DL=%f UL=%f Ping=%v\n", downspeed, upspeed, latency)
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}
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type speedCollector struct {
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downMetric *prometheus.Desc
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upMetric *prometheus.Desc
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latencyMetric *prometheus.Desc
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}
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func newSpeedCollector() *speedCollector {
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return &speedCollector{
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downMetric: prometheus.NewDesc("speedtest_download_speed",
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"Download speed in Mbit/s",
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nil, nil,
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),
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upMetric: prometheus.NewDesc("speedtest_upload_speed",
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"Upload speed in Mbit/s",
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nil, nil,
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),
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latencyMetric: prometheus.NewDesc("speedtest_latency",
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"Latency in ms",
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nil, nil,
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),
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}
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}
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func (collector *speedCollector) Describe(ch chan<- *prometheus.Desc) {
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ch <- collector.downMetric
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ch <- collector.upMetric
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ch <- collector.latencyMetric
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}
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func (collector *speedCollector) Collect(ch chan<- prometheus.Metric) {
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ch <- prometheus.MustNewConstMetric(collector.downMetric, prometheus.CounterValue, downspeed)
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ch <- prometheus.MustNewConstMetric(collector.upMetric, prometheus.CounterValue, upspeed)
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ch <- prometheus.MustNewConstMetric(collector.latencyMetric, prometheus.CounterValue, float64(latency.Milliseconds()))
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}
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