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// SPDX-License-Identifier: GPL-2.0-only
// Copyright (C) 2020 Michael Crute <mike@crute.us>. All rights reserved.
//
// Use of this source code is governed by a license that can be found in the
// LICENSE file.
package main
import (
"flag"
"fmt"
"log"
"net/http"
_ "net/http/pprof"
"os"
"strconv"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/version"
"code.crute.me/pomonaconsulting/six_monitoring/six"
)
const (
namespace = "sixstatus"
exporter = "six_status_exporter"
)
var (
up = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "", "up"),
"Was the SIX query successful?",
nil, nil,
)
rsPrefixCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "route_server", "prefix_count"),
"Number of prefixes advertised to a route server.",
[]string{"ipversion", "mtu", "server"}, nil,
)
rsErrorCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "route_server", "error_count"),
"Number of errors reported by a route server.",
[]string{"ipversion", "mtu", "server"}, nil,
)
rsTransitErrorCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "route_server", "transit_error_count"),
"Number of transit errors reported by a route server.",
[]string{"ipversion", "mtu", "server"}, nil,
)
irrPrefixCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "irr", "prefix_count"),
"Number of prefixes resolved from IRR records.",
[]string{"ipversion"}, nil,
)
irrASNCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "irr", "asn_count"),
"Number of ASNs resolved from IRR records.",
[]string{"ipversion"}, nil,
)
irrAsSetPrefixCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "irr", "as_set_prefix_count"),
"Number of prefixes in the AS-SET resolved from IRR records.",
[]string{"ipversion"}, nil,
)
pdbPrefixCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "peeringdb", "prefix_count"),
"Number of prefixes configured in PeeringDB.",
[]string{"ipversion"}, nil,
)
roaCount = prometheus.NewDesc(
prometheus.BuildFQName(namespace, "", "roa_count"),
"Number of resolved ROA records.",
nil, nil,
)
)
type SIXCollector struct {
ASN int
}
var _ prometheus.Collector = (*SIXCollector)(nil)
func (c *SIXCollector) Describe(ch chan<- *prometheus.Desc) {
ch <- up
ch <- rsPrefixCount
ch <- rsErrorCount
ch <- rsTransitErrorCount
ch <- irrPrefixCount
ch <- irrASNCount
ch <- irrAsSetPrefixCount
ch <- pdbPrefixCount
ch <- roaCount
}
func routeServerMetrics(rs *six.RouteServer, ch chan<- prometheus.Metric) {
ch <- prometheus.MustNewConstMetric(
rsPrefixCount, prometheus.GaugeValue, float64(rs.IPv4.Prefixes),
"4", "1500", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsErrorCount, prometheus.GaugeValue, float64(rs.IPv4.Errors),
"4", "1500", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsTransitErrorCount, prometheus.GaugeValue, float64(rs.IPv4.TransitErrors),
"4", "1500", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsPrefixCount, prometheus.GaugeValue, float64(rs.IPv6.Prefixes),
"6", "1500", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsErrorCount, prometheus.GaugeValue, float64(rs.IPv6.Errors),
"6", "1500", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsTransitErrorCount, prometheus.GaugeValue, float64(rs.IPv6.TransitErrors),
"6", "1500", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsPrefixCount, prometheus.GaugeValue, float64(rs.IPv4Jumbo.Prefixes),
"4", "9000", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsErrorCount, prometheus.GaugeValue, float64(rs.IPv4Jumbo.Errors),
"4", "9000", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsTransitErrorCount, prometheus.GaugeValue, float64(rs.IPv4Jumbo.TransitErrors),
"4", "9000", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsPrefixCount, prometheus.GaugeValue, float64(rs.IPv6Jumbo.Prefixes),
"6", "9000", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsErrorCount, prometheus.GaugeValue, float64(rs.IPv6Jumbo.Errors),
"6", "9000", string(strconv.Itoa(rs.Number)),
)
ch <- prometheus.MustNewConstMetric(
rsTransitErrorCount, prometheus.GaugeValue, float64(rs.IPv6Jumbo.TransitErrors),
"6", "9000", string(strconv.Itoa(rs.Number)),
)
}
func (c *SIXCollector) Collect(ch chan<- prometheus.Metric) {
sp, err := six.FetchParseSIXCSV()
if err != nil {
log.Printf("error: Fetching and parsing CSV: %s", err)
ch <- prometheus.MustNewConstMetric(up, prometheus.GaugeValue, 0)
return
}
ps, ok := sp.GetParticipantByASN(c.ASN)
if !ok {
log.Printf("error: No participant for ASN: %d", c.ASN)
ch <- prometheus.MustNewConstMetric(up, prometheus.GaugeValue, 0)
return
}
p := ps[0]
ch <- prometheus.MustNewConstMetric(up, prometheus.GaugeValue, 1)
// ipversion, mtu, server
if p.RouteServer2 != nil {
routeServerMetrics(p.RouteServer2, ch)
}
if p.RouteServer3 != nil {
routeServerMetrics(p.RouteServer3, ch)
}
ch <- prometheus.MustNewConstMetric(
irrPrefixCount, prometheus.GaugeValue, float64(p.IRRv4.PrefixCount),
"4",
)
ch <- prometheus.MustNewConstMetric(
irrASNCount, prometheus.GaugeValue, float64(p.IRRv4.ASNCount),
"4",
)
ch <- prometheus.MustNewConstMetric(
irrAsSetPrefixCount, prometheus.GaugeValue, float64(p.IRRv4.ASSetCount),
"4",
)
ch <- prometheus.MustNewConstMetric(
pdbPrefixCount, prometheus.GaugeValue, float64(p.PeeringDBPrefixCountv4),
"4",
)
ch <- prometheus.MustNewConstMetric(
irrPrefixCount, prometheus.GaugeValue, float64(p.IRRv6.PrefixCount),
"6",
)
ch <- prometheus.MustNewConstMetric(
irrASNCount, prometheus.GaugeValue, float64(p.IRRv6.ASNCount),
"6",
)
ch <- prometheus.MustNewConstMetric(
irrAsSetPrefixCount, prometheus.GaugeValue, float64(p.IRRv6.ASSetCount),
"6",
)
ch <- prometheus.MustNewConstMetric(
pdbPrefixCount, prometheus.GaugeValue, float64(p.PeeringDBPrefixCountv6),
"6",
)
ch <- prometheus.MustNewConstMetric(roaCount, prometheus.GaugeValue, float64(p.ROACount))
}
func main() {
var (
showVersion = flag.Bool("version", false, "Print version information.")
listenAddress = flag.String("web.listen-address", ":9119", "Address to listen on for web interface and telemetry.")
)
flag.Parse()
if len(os.Args) != 2 {
fmt.Fprintf(os.Stdout, "usage: %s <ASN>\n", os.Args[0])
os.Exit(1)
}
asn, err := strconv.Atoi(os.Args[1])
if err != nil {
fmt.Fprintln(os.Stdout, "invalid ASN, must be numeric")
fmt.Fprintf(os.Stdout, "usage: %s <ASN>\n", os.Args[0])
os.Exit(1)
}
if *showVersion {
fmt.Fprintln(os.Stdout, version.Print(exporter))
os.Exit(0)
}
log.Println("Starting", exporter, version.Info())
log.Println("Build context", version.BuildContext())
prometheus.MustRegister(version.NewCollector(exporter), &SIXCollector{asn})
log.Println("Starting Server: ", *listenAddress)
http.Handle("/metrics", promhttp.Handler())
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`<html>
<head><title>SIX Status Exporter</title></head><body>
<h1>SIX Status Exporter</h1>
<p><a href="/metrics">Metrics</a></p>
</body></html>`))
})
log.Fatal(http.ListenAndServe(*listenAddress, nil))
}
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