68e1150357
Fix TODO: move into startMetricsServer()
Fix errors.Wrap return nil when passed err is nil
Co-Authored-By: Sebastiaan van Stijn <thaJeztah@users.noreply.github.com>
Signed-off-by: HuanHuan Ye <logindaveye@gmail.com>
(cherry picked from commit 88c554f950)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
36 lines
679 B
Go
36 lines
679 B
Go
package main
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import (
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"net"
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"net/http"
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"github.com/docker/go-metrics"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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func (cli *DaemonCli) startMetricsServer(addr string) error {
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if addr == "" {
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return nil
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}
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if !cli.d.HasExperimental() {
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return errors.New("metrics-addr is only supported when experimental is enabled")
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}
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if err := allocateDaemonPort(addr); err != nil {
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return err
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}
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l, err := net.Listen("tcp", addr)
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if err != nil {
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return err
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}
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mux := http.NewServeMux()
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mux.Handle("/metrics", metrics.Handler())
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go func() {
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if err := http.Serve(l, mux); err != nil {
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logrus.Errorf("serve metrics api: %s", err)
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}
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}()
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return nil
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}
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