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Merged
merged 3 commits into from
Aug 22, 2020
Merged

腾讯云监控Exportv2发布 #7

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8661966
release:2.0
Aug 21, 2020
21d7e27
release:2.0
Aug 21, 2020
94e8aa9
release:2.0
Aug 21, 2020
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119 changes: 119 additions & 0 deletions cmd/qcloud-exporter/qcloud_exporter.go
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Original file line number Diff line number Diff line change
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package main

import (
"fmt"
"github.com/go-kit/kit/log"
"github.com/go-kit/kit/log/level"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/promlog"
"github.com/prometheus/common/promlog/flag"
"github.com/prometheus/common/version"
"github.com/tencentyun/tencentcloud-exporter/pkg/collector"
"github.com/tencentyun/tencentcloud-exporter/pkg/config"
kingpin "gopkg.in/alecthomas/kingpin.v2"
"net/http"
"os"
)

func newHandler(c *config.TencentConfig, includeExporterMetrics bool, maxRequests int, logger log.Logger) (*http.Handler, error) {
exporterMetricsRegistry := prometheus.NewRegistry()
if includeExporterMetrics {
exporterMetricsRegistry.MustRegister(
prometheus.NewProcessCollector(prometheus.ProcessCollectorOpts{}),
prometheus.NewGoCollector(),
)
}

nc, err := collector.NewTcMonitorCollector(c, logger)
if err != nil {
return nil, fmt.Errorf("couldn't create collector: %s", err)
}
r := prometheus.NewRegistry()
r.MustRegister(version.NewCollector("qcloud_exporter"))
if err := r.Register(nc); err != nil {
return nil, fmt.Errorf("couldn't register tencent cloud monitor collector: %s", err)
}

handler := promhttp.HandlerFor(
prometheus.Gatherers{exporterMetricsRegistry, r},
promhttp.HandlerOpts{
ErrorHandling: promhttp.ContinueOnError,
MaxRequestsInFlight: maxRequests,
Registry: exporterMetricsRegistry,
},
)
if includeExporterMetrics {
handler = promhttp.InstrumentMetricHandler(
exporterMetricsRegistry, handler,
)
}
return &handler, nil

}

func main() {
var (
listenAddress = kingpin.Flag(
"web.listen-address",
"Address on which to expose metrics and web interface.",
).Default(":9123").String()
metricsPath = kingpin.Flag(
"web.telemetry-path",
"Path under which to expose metrics.",
).Default("/metrics").String()
enableExporterMetrics = kingpin.Flag(
"web.enable-exporter-metrics",
"Include metrics about the exporter itself (promhttp_*, process_*, go_*).",
).Default("false").Bool()
maxRequests = kingpin.Flag(
"web.max-requests",
"Maximum number of parallel scrape requests. Use 0 to disable.",
).Default("0").Int()
configFile = kingpin.Flag(
"config.file", "Tencent qcloud exporter configuration file.",
).Default("qcloud.yml").String()
)

promlogConfig := &promlog.Config{}
flag.AddFlags(kingpin.CommandLine, promlogConfig)
kingpin.Version(version.Print("qcloud_exporter"))
kingpin.HelpFlag.Short('h')
kingpin.Parse()
logger := promlog.New(promlogConfig)

level.Info(logger).Log("msg", "Starting qcloud_exporter", "version", version.Info())
level.Info(logger).Log("msg", "Build context", "build_context", version.BuildContext())

tencentConfig := config.NewConfig()
if err := tencentConfig.LoadFile(*configFile); err != nil {
level.Error(logger).Log("msg", "Load config error", "err", err)
os.Exit(1)
} else {
level.Info(logger).Log("msg", "Load config ok")
}

handler, err := newHandler(tencentConfig, *enableExporterMetrics, *maxRequests, logger)
if err != nil {
level.Error(logger).Log("msg", "Create handler fail", "err", err)
os.Exit(1)
}

http.Handle(*metricsPath, *handler)
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte(`<html>
<head><title>QCloud Exporter</title></head>
<body>
<h1>QCloud Exporter</h1>
<p><a href="` + *metricsPath + `">Metrics</a></p>
</body>
</html>`))
})

level.Info(logger).Log("msg", "Listening on", "address", *listenAddress)
err = http.ListenAndServe(*listenAddress, nil)
if err != nil {
level.Error(logger).Log("err", err)
os.Exit(1)
}
}
210 changes: 0 additions & 210 deletions collector/collector.go
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