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Add metrics endpoint support to server

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We add two flags --enable-metrics and --metrics-port
to enable metrics endpoint and allow specifying the
port which defaults to 9090.

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
This commit is contained in:
Mrunal Patel 2017-08-02 17:38:50 -07:00 committed by Mrunal Patel
parent 0e1452a4ec
commit 43bc359fc0
1 changed files with 26 additions and 0 deletions
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26
cmd/crio/main.go
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@ -285,6 +285,15 @@ func main() {
Value: 6060,
Usage: "port for the pprof profiler",
},
cli.BoolFlag{
Name: "enable-metrics",
Usage: "enable metrics endpoint for the servier on localhost:9090",
},
cli.IntFlag{
Name: "metrics-port",
Value: 9090,
Usage: "port for the metrics endpoint",
},
}
sort.Sort(cli.FlagsByName(app.Flags))
@ -374,6 +383,23 @@ func main() {
logrus.Fatal(err)
}
if c.GlobalBool("enable-metrics") {
metricsPort := c.GlobalInt("metrics-port")
me, err := service.CreateMetricsEndpoint()
if err != nil {
logrus.Fatalf("Failed to create metrics endpoint: %v", err)
}
l, err := net.Listen("tcp", fmt.Sprintf(":%v", metricsPort))
if err != nil {
logrus.Fatalf("Failed to create listener for metrics: %v", err)
}
go func() {
if err := http.Serve(l, me); err != nil {
logrus.Fatalf("Failed to serve metrics endpoint: %v", err)
}
}()
}
graceful := false
catchShutdown(s, service, &graceful)
runtime.RegisterRuntimeServiceServer(s, service)