9f73c0f66a
Because we need to be able to listen to events, we need to start the connection earlier so we can register events. Change-Id: I577e036359be87d451e45b2e1012baf3c7a11edc
84 lines
2.3 KiB
Go
84 lines
2.3 KiB
Go
// Copyright 2019 VEXXHOST, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package main
|
|
|
|
import (
|
|
"net/http"
|
|
|
|
"github.com/libvirt/libvirt-go"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/promhttp"
|
|
"github.com/prometheus/common/log"
|
|
"github.com/prometheus/common/version"
|
|
"gopkg.in/alecthomas/kingpin.v2"
|
|
|
|
"opendev.org/vexxhost/libvirtd_exporter/collectors"
|
|
)
|
|
|
|
func main() {
|
|
var (
|
|
listenAddress = kingpin.Flag(
|
|
"web.listen-address",
|
|
"Address on which to expose metrics and web interface.",
|
|
).Default(":9474").String()
|
|
metricsPath = kingpin.Flag(
|
|
"web.telemetry-path",
|
|
"Path under which to expose metrics.",
|
|
).Default("/metrics").String()
|
|
libvirtURI = kingpin.Flag(
|
|
"libvirt.uri",
|
|
"Libvirt Connection URI",
|
|
).Default("qemu:///system").String()
|
|
libvirtNova = kingpin.Flag(
|
|
"libvirt.nova",
|
|
"Parse Libvirt Nova metadata",
|
|
).Bool()
|
|
)
|
|
|
|
kingpin.Version(version.Print("libvirtd_exporter"))
|
|
kingpin.HelpFlag.Short('h')
|
|
kingpin.Parse()
|
|
|
|
conn, err := libvirt.NewConnect(*libvirtURI)
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
defer conn.Close()
|
|
|
|
domainStats, err := collectors.NewDomainStatsCollector(conn, *libvirtNova)
|
|
if err != nil {
|
|
log.Fatalln(err)
|
|
}
|
|
|
|
prometheus.MustRegister(domainStats)
|
|
|
|
http.Handle("/metrics", promhttp.Handler())
|
|
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
|
|
_, _ = w.Write([]byte(`<html>
|
|
<head><title>Libvirtd Exporter</title></head>
|
|
<body>
|
|
<h1>Libvirtd Exporter</h1>
|
|
<p><a href="` + *metricsPath + `">Metrics</a></p>
|
|
<h2>Build</h2>
|
|
<pre>` + version.Info() + ` ` + version.BuildContext() + `</pre>
|
|
</body>
|
|
</body>
|
|
</html>`))
|
|
})
|
|
|
|
log.Infoln("Listening on", *listenAddress)
|
|
log.Fatal(http.ListenAndServe(*listenAddress, nil))
|
|
}
|