storj/pkg/process/debug.go
JT Olio 22b1fe4e21 pkg/process: add pkg/telemetry plumbing (#47)
* pkg/process: add pkg/telemetry plumbing

* pkg/process: add debug endpoints

* fix linting
2018-05-30 10:03:44 -04:00

44 lines
1.1 KiB
Go

// Copyright (C) 2018 Storj Labs, Inc.
// See LICENSE for copying information.
package process
import (
"context"
"net"
"net/http"
"net/http/pprof"
"go.uber.org/zap"
monkit "gopkg.in/spacemonkeygo/monkit.v2"
"gopkg.in/spacemonkeygo/monkit.v2/present"
)
func init() {
// zero out the http.DefaultServeMux net/http/pprof so unhelpfully
// side-effected.
*http.DefaultServeMux = http.ServeMux{}
}
func initDebug(ctx context.Context, logger *zap.Logger, r *monkit.Registry) (
err error) {
var mux http.ServeMux
mux.HandleFunc("/debug/pprof/", pprof.Index)
mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
mux.Handle("/mon/", http.StripPrefix("/mon", present.HTTP(r)))
ln, err := net.Listen("tcp", "localhost:0")
if err != nil {
return err
}
go func() {
err := (&http.Server{Handler: &mux}).Serve(ln)
if err != nil {
logger.Error("debug server died", zap.Error(err))
}
}()
return nil
}