set mount point to existing permissions

fix https://github.com/chrislusf/seaweedfs/issues/806

weed/filesys/dir.go

@@ -34,8 +34,10 @@ func (dir *Dir) Attr(context context.Context, attr *fuse.Attr) error {
 	// https://github.com/bazil/fuse/issues/196
 	attr.Valid = time.Second
 
-	if dir.Path == "/" {
-		attr.Mode = os.ModeDir | 0777
+	if dir.Path == dir.wfs.option.FilerMountRootPath {
+		attr.Uid = dir.wfs.option.MountUid
+		attr.Gid = dir.wfs.option.MountGid
+		attr.Mode = dir.wfs.option.MountMode
 		return nil
 	}
 

weed/filesys/wfs.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"math"
+	"os"
 	"sync"
 	"time"
 
@@ -26,6 +27,10 @@ type Option struct {
 	DataCenter         string
 	DirListingLimit    int
 	EntryCacheTtl      time.Duration
+
+	MountUid  uint32
+	MountGid  uint32
+	MountMode os.FileMode
 }
 
 var _ = fs.FS(&WFS{})