Enable AppEngine profiling endpoints.

logdog/appengine/cmd/coordinator/services/main.go

 // Copyright 2015 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package module
 
 import (
         "net/http"
 
+        // Importing pprof implicitly installs "/debug/*" profiling handlers.
+        _ "net/http/pprof"
+
         "github.com/luci/luci-go/appengine/gaemiddleware"
         "github.com/luci/luci-go/grpc/prpc"
         registrationPb "github.com/luci/luci-go/logdog/api/endpoints/coordinator/registration/v1"
         servicesPb "github.com/luci/luci-go/logdog/api/endpoints/coordinator/services/v1"
         "github.com/luci/luci-go/logdog/appengine/coordinator"
         "github.com/luci/luci-go/logdog/appengine/coordinator/endpoints/registration"
         "github.com/luci/luci-go/logdog/appengine/coordinator/endpoints/services"
         "github.com/luci/luci-go/server/router"
 
         // Include mutations package so its Mutations will register with tumble via
         // init().
         _ "github.com/luci/luci-go/logdog/appengine/coordinator/mutations"
 )
 
 // Run installs and executes this site.
 func init() {
         r := router.New()
 
         // Setup Cloud Endpoints.
         svr := prpc.Server{}
         servicesPb.RegisterServicesServer(&svr, services.New())
         registrationPb.RegisterRegistrationServer(&svr, registration.New())
 
         // Standard HTTP endpoints.
         base := gaemiddleware.BaseProd().Extend(coordinator.ProdCoordinatorService)
         svr.InstallHandlers(r, base)
 
         http.Handle("/", r)
 }