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pinger.go
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pinger.go
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package pinger
import (
"net/http"
_ "net/http/pprof" // #nosec
"time"
"github.com/prometheus/client_golang/prometheus/promhttp"
"k8s.io/klog/v2"
"github.com/kubeovn/kube-ovn/pkg/pinger"
"github.com/kubeovn/kube-ovn/pkg/util"
"github.com/kubeovn/kube-ovn/versions"
)
func CmdMain() {
defer klog.Flush()
klog.Infof(versions.String())
config, err := pinger.ParseFlags()
if err != nil {
util.LogFatalAndExit(err, "failed to parse config")
}
if config.Mode == "server" {
if config.EnableMetrics {
pinger.InitPingerMetrics()
util.InitKlogMetrics()
mux := http.NewServeMux()
mux.Handle("/metrics", promhttp.Handler())
go func() {
// conform to Gosec G114
// https://github.com/securego/gosec#available-rules
server := &http.Server{
Addr: util.JoinHostPort("0.0.0.0", config.Port),
ReadHeaderTimeout: 3 * time.Second,
Handler: mux,
}
util.LogFatalAndExit(server.ListenAndServe(), "failed to listen and serve on %s", server.Addr)
}()
}
if config.EnableVerboseConnCheck {
addr := util.JoinHostPort("0.0.0.0", config.UDPConnCheckPort)
if err = util.UDPConnectivityListen(addr); err != nil {
util.LogFatalAndExit(err, "failed to start UDP listen on addr %s", addr)
}
addr = util.JoinHostPort("0.0.0.0", config.TCPConnCheckPort)
if err = util.TCPConnectivityListen(addr); err != nil {
util.LogFatalAndExit(err, "failed to start TCP listen on addr %s", addr)
}
}
}
pinger.StartPinger(config)
}