github.com/flavio/docker@v0.1.3-0.20170117145210-f63d1a6eec47/cmd/dockerd/metrics.go (about)

     1  package main
     2  
     3  import (
     4  	"net"
     5  	"net/http"
     6  
     7  	"github.com/Sirupsen/logrus"
     8  	metrics "github.com/docker/go-metrics"
     9  )
    10  
    11  func startMetricsServer(addr string) error {
    12  	if err := allocateDaemonPort(addr); err != nil {
    13  		return err
    14  	}
    15  	l, err := net.Listen("tcp", addr)
    16  	if err != nil {
    17  		return err
    18  	}
    19  	mux := http.NewServeMux()
    20  	mux.Handle("/metrics", metrics.Handler())
    21  	go func() {
    22  		if err := http.Serve(l, mux); err != nil {
    23  			logrus.Errorf("serve metrics api: %s", err)
    24  		}
    25  	}()
    26  	return nil
    27  }