{cmd,private,storagenode}: create storage dir verification during setup

Previously, we created a new file to use for directory verification
every time the storage node starts. This is not helpful if the storage node
points to the wrong directory when restarting. Now we will only create the file
on setup. Now the file should be created only once and will be verified at
runtime.

Change-Id: Id529f681469138d368e5ea3c63159befe62b1a5b

cmd/storagenode/main.go

@@ -260,6 +260,15 @@ func cmdSetup(cmd *cobra.Command, args []string) (err error) {
 		return err
 	}
 
+	identity, err := setupCfg.Identity.Load()
+	if err != nil {
+		return err
+	}
+
+	if err := db.Pieces().CreateVerificationFile(identity.ID); err != nil {
+		return err
+	}
+
 	return db.Close()
 }
 

private/testplanet/storagenode.go

@@ -218,6 +218,10 @@ func (planet *Planet) newStorageNode(ctx context.Context, prefix string, index,
 		return nil, err
 	}
 
+	if err := db.Pieces().CreateVerificationFile(identity.ID); err != nil {
+		return nil, err
+	}
+
 	if planet.config.Reconfigure.StorageNodeDB != nil {
 		db, err = planet.config.Reconfigure.StorageNodeDB(index, db, planet.log)
 		if err != nil {

storagenode/monitor/monitor.go

@@ -113,11 +113,6 @@ func (service *Service) Run(ctx context.Context) (err error) {
 		return Error.New("disk space requirement not met")
 	}
 
-	// Create file to identify the storage directory.
-	if err := service.store.CreateVerificationFile(service.contact.Local().ID); err != nil {
-		return Error.New("failed to create storage directory verification: %v", err)
-	}
-
 	group, ctx := errgroup.WithContext(ctx)
 	group.Go(func() error {
 		return service.VerifyDirReadableLoop.Run(ctx, func(ctx context.Context) error {