chore: hard fork stalloneclone/ping_exporter

import of https://github.com/stalloneclone/ping_exporter

Co-authored-by: stalloneclone <[email protected]>

collector.go

@@ -0,0 +1,167 @@
+package main
+
+import (
+	"net"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	probing "github.com/prometheus-community/pro-bing"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	namespace = "ping_"
+)
+
+var (
+	probeDurationGauge = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: namespace + "duration_seconds",
+		Help: "Returns how long the probe took to complete in seconds",
+	})
+	minGauge = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: namespace + "rtt_min_seconds",
+		Help: "Best round trip time",
+	})
+	maxGauge = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: namespace + "rtt_max_seconds",
+		Help: "Worst round trip time",
+	})
+	avgGauge = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: namespace + "rtt_avg_seconds",
+		Help: "Mean round trip time",
+	})
+	stddevGauge = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: namespace + "rtt_std_deviation",
+		Help: "Standard deviation",
+	})
+	lossGauge = prometheus.NewGauge(prometheus.GaugeOpts{
+		Name: namespace + "loss_ratio",
+		Help: "Packet loss from 0 to 100",
+	})
+)
+
+func pingHandler(w http.ResponseWriter, r *http.Request) {
+	params := r.URL.Query()
+	target := params.Get("target")
+	timeout := time.Second * 10
+	interval := time.Second
+	count := 5
+	size := 56
+	ttl := 64
+	proto := "ip4:icmp"
+	for k, v := range params {
+		k = strings.ToLower(k)
+		if k == "target" {
+			target = v[0]
+		}
+		if k == "timeout" {
+			if strings.HasSuffix(v[0], "s") {
+				value, err := time.ParseDuration(v[0])
+				if err != nil {
+					log.Error(err)
+				}
+				timeout = value
+			} else {
+				log.Errorf("expecting time duration in seconds example: 5s - got: %v", v[0])
+			}
+		}
+		if k == "interval" {
+			if strings.HasSuffix(v[0], "s") {
+				value, err := time.ParseDuration(v[0])
+				if err != nil {
+					log.Error(err)
+				}
+				interval = value
+			} else {
+				log.Warnf("expecting time duration in seconds example: 5s - got: %v - using 1s default", v[0])
+			}
+		}
+		if k == "count" {
+			value, err := strconv.Atoi(v[0])
+			if err != nil {
+				log.Error(err)
+			}
+			if value > 0 {
+				count = value
+			}
+		}
+		if k == "size" {
+			value, err := strconv.Atoi(v[0])
+			if err != nil {
+				log.Error(err)
+			}
+			if value < 1024 {
+				size = value
+			}
+		}
+		if k == "ttl" {
+			value, err := strconv.Atoi(v[0])
+			if err != nil {
+				log.Error(err)
+			}
+			ttl = value
+		}
+		if k == "proto" {
+			value := strings.ToLower(v[0])
+			proto = value
+		}
+
+	}
+
+	start := time.Now()
+	registry := prometheus.NewRegistry()
+	registry.MustRegister(probeDurationGauge)
+	registry.MustRegister(minGauge)
+	registry.MustRegister(maxGauge)
+	registry.MustRegister(avgGauge)
+	registry.MustRegister(stddevGauge)
+	registry.MustRegister(lossGauge)
+
+	ra, err := net.ResolveIPAddr(proto, target)
+	if err != nil {
+		log.Error(err)
+		h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
+		h.ServeHTTP(w, r)
+		return
+	}
+
+	pinger, err := probing.NewPinger(ra.IP.String())
+	if err != nil {
+		log.Error(err)
+		h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
+		h.ServeHTTP(w, r)
+		return
+	}
+
+	pinger.Count = count
+	pinger.Size = size
+	pinger.Interval = interval
+	pinger.Timeout = timeout
+	pinger.TTL = ttl
+	pinger.SetPrivileged(false)
+
+	err = pinger.Run()
+	if err != nil {
+		log.Error(err)
+		h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
+		h.ServeHTTP(w, r)
+		return
+	} else {
+		stats := pinger.Statistics()
+
+		minGauge.Set(stats.MinRtt.Seconds())
+		avgGauge.Set(stats.AvgRtt.Seconds())
+		maxGauge.Set(stats.MaxRtt.Seconds())
+		stddevGauge.Set(float64(stats.StdDevRtt))
+		lossGauge.Set(stats.PacketLoss)
+
+		duration := time.Since(start).Seconds()
+		probeDurationGauge.Set(duration)
+	}
+	h := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
+	h.ServeHTTP(w, r)
+}

go.mod

@@ -0,0 +1,24 @@
+module ping_exporter
+
+go 1.19
+
+require (
+	github.com/prometheus-community/pro-bing v0.1.0
+	github.com/prometheus/client_golang v1.14.0
+	github.com/sirupsen/logrus v1.9.0
+)
+
+require (
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	golang.org/x/net v0.0.0-20220615171555-694bf12d69de // indirect
+	golang.org/x/sync v0.0.0-20220601150217-0de741cfad7f // indirect
+	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)