buildkit/cmd/buildkitd/debug.go

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package main
import (
"expvar"
"net"
"net/http"
"net/http/pprof"
"github.com/sirupsen/logrus"
"golang.org/x/net/trace"
)
func setupDebugHandlers(addr string) error {
m := http.NewServeMux()
m.Handle("/debug/vars", expvar.Handler())
m.Handle("/debug/pprof/", http.HandlerFunc(pprof.Index))
m.Handle("/debug/pprof/cmdline", http.HandlerFunc(pprof.Cmdline))
m.Handle("/debug/pprof/profile", http.HandlerFunc(pprof.Profile))
m.Handle("/debug/pprof/symbol", http.HandlerFunc(pprof.Symbol))
m.Handle("/debug/pprof/trace", http.HandlerFunc(pprof.Trace))
// TODO: reenable after golang.org/x/net update
// m.Handle("/debug/requests", http.HandlerFunc(trace.Traces))
// m.Handle("/debug/events", http.HandlerFunc(trace.Events))
// setting debugaddr is opt-in. permission is defined by listener address
trace.AuthRequest = func(_ *http.Request) (bool, bool) {
return true, true
}
l, err := net.Listen("tcp", addr)
if err != nil {
return err
}
logrus.Debugf("debug handlers listening at %s", addr)
go http.Serve(l, m)
return nil
}