houston/main_client.go

//go:build client

package main

import (
	"context"
	"time"

	"repositories.action2quare.com/ayo/gocommon/flagx"
	"repositories.action2quare.com/ayo/houston/client"

	"net/http"
	_ "net/http/pprof"
	"os"
	"runtime"

	"github.com/prometheus/common/promlog"
	"github.com/prometheus/common/promlog/flag"

	"github.com/alecthomas/kingpin/v2"
	"github.com/prometheus/common/version"
	"github.com/prometheus/exporter-toolkit/web"
	"github.com/prometheus/exporter-toolkit/web/kingpinflag"
)

func main() {
	runtime.GOMAXPROCS(1)

	flagx.Parse()

	hc, err := client.NewClient(true)
	if err != nil {
		panic(err)
	}

	var (
		toolkitFlags = kingpinflag.AddFlags(kingpin.CommandLine, ":9100")
	)

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

	http.Handle("/metrics", client.NewHandlerForNodeExporter(true, 2, logger))

	server := &http.Server{}
	go web.ListenAndServe(server, toolkitFlags, logger)

	hc.Start()
	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
	server.Shutdown(ctx)
	cancel()
}