Revert of Use classic GAE for coordinator default frontend.

logdog/appengine/cmd/coordinator/vmuser/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
+package main
 
 import (
         "net/http"
 
         // Importing pprof implicitly installs "/debug/*" profiling handlers.
         _ "net/http/pprof"
 
         "github.com/luci/luci-go/appengine/gaemiddleware"
         log "github.com/luci/luci-go/common/logging"
         "github.com/luci/luci-go/grpc/discovery"
         "github.com/luci/luci-go/grpc/prpc"
         adminPb "github.com/luci/luci-go/logdog/api/endpoints/coordinator/admin/v1"
         logsPb "github.com/luci/luci-go/logdog/api/endpoints/coordinator/logs/v1"
         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/config"
         "github.com/luci/luci-go/logdog/appengine/coordinator/endpoints/admin"
         "github.com/luci/luci-go/logdog/appengine/coordinator/endpoints/logs"
         "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"
 
         "golang.org/x/net/context"
+        "google.golang.org/appengine"
 
         // 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() {
+func main() {
         r := router.New()
 
         // Setup Cloud Endpoints.
         svr := prpc.Server{
                 AccessControl: accessControl,
         }
         adminPb.RegisterAdminServer(&svr, admin.New())
         servicesPb.RegisterServicesServer(&svr, services.New())
         registrationPb.RegisterRegistrationServer(&svr, registration.New())
         logsPb.RegisterLogsServer(&svr, logs.New())
         discovery.Enable(&svr)
 
         // Standard HTTP endpoints.
         base := gaemiddleware.BaseProd().Extend(coordinator.ProdCoordinatorService)
         gaemiddleware.InstallHandlers(r, base)
         svr.InstallHandlers(r, base)
 
         // Redirect "/" to "/app/".
         r.GET("/", router.MiddlewareChain{}, func(c *router.Context) {
                 http.Redirect(c.Writer, c.Request, "/app/", http.StatusFound)
         })
 
         http.Handle("/", r)
+        appengine.Main()
 }
 
 func accessControl(c context.Context, origin string) bool {
         cfg, err := config.Load(c)
         if err != nil {
                 log.WithError(err).Errorf(c, "Failed to get config for access control check.")
                 return false
         }
 
         ccfg := cfg.GetCoordinator()
         if ccfg == nil {
                 return false
         }
 
         for _, o := range ccfg.RpcAllowOrigins {
                 if o == origin {
                         return true
                 }
         }
         return false
 }