filer: change to /etc/seaweedfs folder on filer

fix https://github.com/chrislusf/seaweedfs/issues/1666

weed/filer/filer_conf.go

@@ -13,10 +13,11 @@ import (
 )
 
 const (
-	DirectoryEtc  = "/etc"
-	FilerConfName = "filer.conf"
-	IamConfigDirecotry = "/etc/iam"
-	IamIdentityFile = "identity.json"
+	DirectoryEtcRoot      = "/etc"
+	DirectoryEtcSeaweedFS = "/etc/seaweedfs"
+	FilerConfName         = "filer.conf"
+	IamConfigDirecotry    = "/etc/iam"
+	IamIdentityFile       = "identity.json"
 )
 
 type FilerConf struct {
@@ -31,7 +32,7 @@ func NewFilerConf() (fc *FilerConf) {
 }
 
 func (fc *FilerConf) loadFromFiler(filer *Filer) (err error) {
-	filerConfPath := util.NewFullPath(DirectoryEtc, FilerConfName)
+	filerConfPath := util.NewFullPath(DirectoryEtcSeaweedFS, FilerConfName)
 	entry, err := filer.FindEntry(context.Background(), filerConfPath)
 	if err != nil {
 		if err == filer_pb.ErrNotFound {

weed/filer/filer_on_meta_event.go

@@ -11,8 +11,8 @@ import (
 
 // onMetadataChangeEvent is triggered after filer processed change events from local or remote filers
 func (f *Filer) onMetadataChangeEvent(event *filer_pb.SubscribeMetadataResponse) {
-	if DirectoryEtc != event.Directory {
-		if DirectoryEtc != event.EventNotification.NewParentPath {
+	if DirectoryEtcSeaweedFS != event.Directory {
+		if DirectoryEtcSeaweedFS != event.EventNotification.NewParentPath {
 			return
 		}
 	}

weed/server/filer_server_handlers_write_autochunk.go

@@ -237,7 +237,7 @@ func (fs *FilerServer) uploadReaderToChunks(w http.ResponseWriter, r *http.Reque
 		}
 	}
 
-	if chunkOffset < fs.option.CacheToFilerLimit || strings.HasPrefix(r.URL.Path, filer.DirectoryEtc) && chunkOffset < 4*1024 {
+	if chunkOffset < fs.option.CacheToFilerLimit || strings.HasPrefix(r.URL.Path, filer.DirectoryEtcRoot) && chunkOffset < 4*1024 {
 		smallContent = content
 	}
 	return fileChunks, md5Hash, chunkOffset, nil, smallContent

weed/shell/command_fs_configure.go

@@ -62,7 +62,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 
 	var buf bytes.Buffer
 	if err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
-		return filer.ReadEntry(commandEnv.MasterClient, client, filer.DirectoryEtc, filer.FilerConfName, &buf)
+		return filer.ReadEntry(commandEnv.MasterClient, client, filer.DirectoryEtcSeaweedFS, filer.FilerConfName, &buf)
 	}); err != nil && err != filer_pb.ErrNotFound {
 		return err
 	}
@@ -116,7 +116,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 
 	if *apply {
 
-		if err := filer.SaveAs(commandEnv.option.FilerHost, int(commandEnv.option.FilerPort), filer.DirectoryEtc, filer.FilerConfName, "text/plain; charset=utf-8", &buf); err != nil {
+		if err := filer.SaveAs(commandEnv.option.FilerHost, int(commandEnv.option.FilerPort), filer.DirectoryEtcSeaweedFS, filer.FilerConfName, "text/plain; charset=utf-8", &buf); err != nil {
 			return err
 		}