[#236] Switch base image for OCI container to Debian

Related: TrueCloudLab/frostfs-node#1724

Signed-off-by: Vitaliy Potyarkin <v.potyarkin@yadro.com>

.docker/Dockerfile

@@ -1,7 +1,10 @@
-FROM golang:1.24-alpine AS basebuilder
+FROM golang:1.24 AS builder
-RUN apk add --update make bash ca-certificates
+RUN apt-get update && \
-
+    apt-get install --no-install-recommends -y \
-FROM basebuilder AS builder
+        bash \
+        ca-certificates \
+        && \
+    rm -rf /var/lib/apt/lists/*
 ENV GOGC=off
 ENV CGO_ENABLED=0
 ARG BUILD=now
@@ -13,7 +16,7 @@ COPY . /src
 RUN make
 
 # Executable image
-FROM scratch
+FROM debian:stable-slim
 
 WORKDIR /
 

.docker/Dockerfile.dirty

@@ -1,5 +1,10 @@
-FROM alpine
+FROM debian:stable-slim
-RUN apk add --update --no-cache bash ca-certificates
+RUN apt-get update && \
+    apt-get install --no-install-recommends -y \
+        bash \
+        ca-certificates \
+        && \
+    rm -rf /var/lib/apt/lists/*
 
 WORKDIR /
 

Makefile

@@ -31,6 +31,10 @@ PKG_VERSION ?= $(shell echo $(VERSION) | sed "s/^v//" | \
 .PHONY: debpackage debclean
 
 FUZZING_DIR = $(shell pwd)/tests/fuzzing/files
+FUZZING_TEMP_DIRS = $(shell find . -type f -name '*_fuzz_test.go' -exec dirname {} \; | uniq | xargs -I{} echo -n "{}/tempfuzz ")
+FUZZING_COVER_FILES = $(shell find . -type f -name '*_fuzz_test.go' -exec dirname {} \; | uniq | xargs -I{} echo -n "{}/cover.out ")
+FUZZING_FUNC_FILES = $(shell find . -type f -name '*_fuzz_test.go' -exec dirname {} \; | uniq | xargs -I{} echo -n "{}/func.txt ")
+FUZZING_INDEX_FILES = $(shell find . -type f -name '*_fuzz_test.go' -exec dirname {} \; | uniq | xargs -I{} echo -n "{}/index.html ")
 NGFUZZ_REPO = https://gitflic.ru/project/yadro/ngfuzz.git
 FUZZ_TIMEOUT ?= 30
 FUZZ_FUNCTIONS ?= ""
@@ -189,6 +193,9 @@ version:
 clean:
 	rm -rf vendor
 	rm -rf $(BINDIR)
+	rm -rf $(FUZZING_DIR) $(FUZZING_TEMP_DIRS)
+	rm -f $(FUZZING_COVER_FILES) $(FUZZING_FUNC_FILES) $(FUZZING_INDEX_FILES)
+	git checkout -- go.mod go.sum
 
 # Package for Debian
 debpackage:

internal/handler/browse.go

@@ -76,13 +76,13 @@ func newListObjectsResponseNative(attrs map[string]string) ResponseObject {
 	}
 }
 
-func getNextDir(filepath, prefix string) *string {
+func getNextDir(filepath, prefix string) string {
 	restPath := strings.Replace(filepath, prefix, "", 1)
 	index := strings.Index(restPath, "/")
 	if index == -1 {
-		return nil
+		return ""
 	}
-	return ptr(restPath[:index])
+	return restPath[:index]
 }
 
 func lastPathElement(path string) string {
@@ -143,18 +143,15 @@ func getParent(encPrefix string) string {
 	if slashIndex == -1 {
 		return ""
 	}
-	return prefix[:slashIndex+1]
+	return prefix[:slashIndex]
 }
 
 func urlencode(path string) string {
 	var res strings.Builder
 
 	prefixParts := strings.Split(path, "/")
-	for i, prefixPart := range prefixParts {
+	for _, prefixPart := range prefixParts {
-		prefixPart = url.PathEscape(prefixPart)
+		prefixPart = "/" + url.PathEscape(prefixPart)
-		if i != 0 {
-			prefixPart = "/" + prefixPart
-		}
 		if prefixPart == "/." || prefixPart == "/.." {
 			prefixPart = url.PathEscape(prefixPart)
 		}
@@ -171,16 +168,11 @@ type GetObjectsResponse struct {
 }
 
 func (h *Handler) getDirObjectsS3(ctx context.Context, bucketInfo *data.BucketInfo, prefix string) (*GetObjectsResponse, error) {
-	var treePrefix *string
+	if prefix != "" && prefix[len(prefix)-1] == '/' {
-	if prefix != "" {
+		prefix = prefix[:len(prefix)-1]
-		if prefix[len(prefix)-1] == '/' {
-			treePrefix = ptr(prefix[:len(prefix)-1])
-		} else {
-			treePrefix = &prefix
-		}
 	}
 
-	nodes, err := h.tree.GetSubTreeByPrefix(ctx, bucketInfo, treePrefix, true)
+	nodes, err := h.tree.GetSubTreeByPrefix(ctx, bucketInfo, prefix, true)
 	if err != nil {
 		return nil, err
 	}
@@ -201,18 +193,14 @@ func (h *Handler) getDirObjectsS3(ctx context.Context, bucketInfo *data.BucketIn
 		if obj.IsDeleteMarker {
 			continue
 		}
-		obj.FilePath = prefix + obj.FileName
+		obj.FilePath = prefix + "/" + obj.FileName
-		obj.GetURL = "/get/" + bucketInfo.Name + "/" + urlencode(obj.FilePath)
+		obj.GetURL = "/get/" + bucketInfo.Name + urlencode(obj.FilePath)
 		result.objects = append(result.objects, obj)
 	}
 
 	return result, nil
 }
 
-func ptr(s string) *string {
-	return &s
-}
-
 func (h *Handler) getDirObjectsNative(ctx context.Context, bucketInfo *data.BucketInfo, prefix string) (*GetObjectsResponse, error) {
 	basePath := prefix
 	if basePath != "" && basePath[len(basePath)-1] != '/' {
@@ -259,7 +247,7 @@ func (h *Handler) getDirObjectsNative(ctx context.Context, bucketInfo *data.Buck
 			if _, ok := dirs[objExt.Object.FileName]; ok {
 				continue
 			}
-			objExt.Object.GetURL = "/get/" + bucketInfo.CID.EncodeToString() + "/" + urlencode(objExt.Object.FilePath)
+			objExt.Object.GetURL = "/get/" + bucketInfo.CID.EncodeToString() + urlencode(objExt.Object.FilePath)
 			dirs[objExt.Object.FileName] = struct{}{}
 		} else {
 			objExt.Object.GetURL = "/get/" + bucketInfo.CID.EncodeToString() + "/" + objExt.Object.OID
@@ -331,13 +319,13 @@ func (h *Handler) headDirObject(ctx context.Context, cnrID cid.ID, objID oid.ID,
 	}
 
 	dirname := getNextDir(attrs[object.AttributeFilePath], basePath)
-	if dirname == nil {
+	if dirname == "" {
 		return newListObjectsResponseNative(attrs), nil
 	}
 
 	return ResponseObject{
-		FileName: *dirname,
+		FileName: dirname,
-		FilePath: basePath + *dirname,
+		FilePath: basePath + dirname,
 		IsDir:    true,
 	}, nil
 }

internal/handler/handler.go

@@ -325,12 +325,11 @@ func (h *Handler) browseIndexMiddleware(fn ListFunc) MiddlewareFunc {
 		ctx, span := tracing.StartSpanFromContext(prm.Context, "handler.browseIndex")
 		defer span.End()
 
-		h.reqLogger(ctx).Info(logs.BrowseIndex,
+		ctx = utils.SetReqLog(ctx, h.reqLogger(ctx).With(
 			zap.String("bucket", prm.BktInfo.Name),
 			zap.String("container", prm.BktInfo.CID.EncodeToString()),
 			zap.String("prefix", prm.Path),
-			logs.TagField(logs.TagDatapath),
+		))
-		)
 
 		objects, err := fn(ctx, prm.BktInfo, prm.Path)
 		if err != nil {

internal/handler/handler_fuzz_test.go

@@ -24,11 +24,6 @@ import (
 	"go.uber.org/zap"
 )
 
-const (
-	fuzzSuccessExitCode = 0
-	fuzzFailExitCode    = -1
-)
-
 func prepareStrings(tp *go_fuzz_utils.TypeProvider, count int) ([]string, error) {
 	array := make([]string, count)
 	var err error
@@ -222,23 +217,18 @@ func InitFuzzUpload() {
 
 }
 
-func DoFuzzUpload(input []byte) int {
+func DoFuzzUpload(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
-	_, _, _, _, _, _, _, err = upload(tp)
+	_, _, _, _, _, _, _, _ = upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzUpload(f *testing.F) {
@@ -307,30 +297,28 @@ func InitFuzzGet() {
 
 }
 
-func DoFuzzGet(input []byte) int {
+func DoFuzzGet(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	ctx, hc, cnrID, resp, filename, _, _, err := upload(tp)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	r, err := downloadOrHead(tp, ctx, hc, cnrID, resp, filename)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	hc.Handler().DownloadByAddressOrBucketName(r)
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzGet(f *testing.F) {
@@ -343,30 +331,28 @@ func InitFuzzHead() {
 
 }
 
-func DoFuzzHead(input []byte) int {
+func DoFuzzHead(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	ctx, hc, cnrID, resp, filename, _, _, err := upload(tp)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	r, err := downloadOrHead(tp, ctx, hc, cnrID, resp, filename)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	hc.Handler().HeadByAddressOrBucketName(r)
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzHead(f *testing.F) {
@@ -379,36 +365,36 @@ func InitFuzzDownloadByAttribute() {
 
 }
 
-func DoFuzzDownloadByAttribute(input []byte) int {
+func DoFuzzDownloadByAttribute(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	ctx, hc, cnrID, _, _, attrKey, attrVal, err := upload(tp)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	cid := cnrID.EncodeToString()
 	cid, err = maybeFillRandom(tp, cid)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	attrKey, err = maybeFillRandom(tp, attrKey)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	attrVal, err = maybeFillRandom(tp, attrVal)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	r := new(fasthttp.RequestCtx)
@@ -418,8 +404,6 @@ func DoFuzzDownloadByAttribute(input []byte) int {
 	r.SetUserValue("attr_val", attrVal)
 
 	hc.Handler().DownloadByAttribute(r)
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzDownloadByAttribute(f *testing.F) {
@@ -432,36 +416,36 @@ func InitFuzzHeadByAttribute() {
 
 }
 
-func DoFuzzHeadByAttribute(input []byte) int {
+func DoFuzzHeadByAttribute(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	ctx, hc, cnrID, _, _, attrKey, attrVal, err := upload(tp)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	cid := cnrID.EncodeToString()
 	cid, err = maybeFillRandom(tp, cid)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	attrKey, err = maybeFillRandom(tp, attrKey)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	attrVal, err = maybeFillRandom(tp, attrVal)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	r := new(fasthttp.RequestCtx)
@@ -471,8 +455,6 @@ func DoFuzzHeadByAttribute(input []byte) int {
 	r.SetUserValue("attr_val", attrVal)
 
 	hc.Handler().HeadByAttribute(r)
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzHeadByAttribute(f *testing.F) {
@@ -485,32 +467,32 @@ func InitFuzzDownloadZipped() {
 
 }
 
-func DoFuzzDownloadZipped(input []byte) int {
+func DoFuzzDownloadZipped(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	ctx, hc, cnrID, _, _, _, _, err := upload(tp)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	cid := cnrID.EncodeToString()
 	cid, err = maybeFillRandom(tp, cid)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	prefix := ""
 	prefix, err = maybeFillRandom(tp, prefix)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	r := new(fasthttp.RequestCtx)
@@ -519,8 +501,6 @@ func DoFuzzDownloadZipped(input []byte) int {
 	r.SetUserValue("prefix", prefix)
 
 	hc.Handler().DownloadZip(r)
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzDownloadZipped(f *testing.F) {
@@ -533,21 +513,21 @@ func InitFuzzStoreBearerTokenAppCtx() {
 
 }
 
-func DoFuzzStoreBearerTokenAppCtx(input []byte) int {
+func DoFuzzStoreBearerTokenAppCtx(input []byte) {
 	// FUZZER INIT
 	if len(input) < 100 {
-		return fuzzFailExitCode
+		return
 	}
 
 	tp, err := go_fuzz_utils.NewTypeProvider(input)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	prefix := ""
 	prefix, err = maybeFillRandom(tp, prefix)
 	if err != nil {
-		return fuzzFailExitCode
+		return
 	}
 
 	ctx := context.Background()
@@ -570,8 +550,6 @@ func DoFuzzStoreBearerTokenAppCtx(input []byte) int {
 	}
 
 	tokens.StoreBearerTokenAppCtx(ctx, r)
-
-	return fuzzSuccessExitCode
 }
 
 func FuzzStoreBearerTokenAppCtx(f *testing.F) {

internal/handler/handler_test.go

@@ -520,23 +520,15 @@ func TestIndex(t *testing.T) {
 		obj1.SetAttributes(prepareObjectAttributes(object.AttributeFilePath, "prefix/obj1"))
 		hc.frostfs.objects[cnrID.String()+"/"+obj1ID.String()] = obj1
 
-		obj2ID := oidtest.ID()
-		obj2 := object.New()
-		obj2.SetID(obj2ID)
-		obj2.SetPayload([]byte("obj2"))
-		obj2.SetAttributes(prepareObjectAttributes(object.AttributeFilePath, "/dir/.."))
-		hc.frostfs.objects[cnrID.String()+"/"+obj2ID.String()] = obj2
-
 		hc.tree.containers[cnrID.String()] = containerInfo{
 			trees: map[string]map[string]nodeResponse{
 				"system": {"bucket-settings": nodeResponse{nodeID: 1}},
 				"version": {
-					"<root>": nodeResponse{}, //root
+					"": nodeResponse{}, //root
 					"prefix": nodeResponse{
 						nodeID: 1,
-						meta:   []nodeMeta{{key: tree.FileNameKey, value: []byte("prefix")}},
+						meta:   []nodeMeta{{key: tree.FileNameKey, value: []byte("prefix")}}},
-					},
+					"obj1": nodeResponse{
-					"prefix/obj1": nodeResponse{
 						parentID: 1,
 						nodeID:   2,
 						meta: []nodeMeta{
@@ -544,23 +536,6 @@ func TestIndex(t *testing.T) {
 							{key: "OID", value: []byte(obj1ID.String())},
 						},
 					},
-					"": nodeResponse{
-						nodeID: 3,
-						meta:   []nodeMeta{{key: tree.FileNameKey, value: []byte("")}},
-					},
-					"/dir": nodeResponse{
-						parentID: 3,
-						nodeID:   4,
-						meta:     []nodeMeta{{key: tree.FileNameKey, value: []byte("dir")}},
-					},
-					"/dir/..": nodeResponse{
-						parentID: 4,
-						nodeID:   5,
-						meta: []nodeMeta{
-							{key: tree.FileNameKey, value: []byte("..")},
-							{key: "OID", value: []byte(obj2ID.String())},
-						},
-					},
 				},
 			},
 		}
@@ -588,21 +563,6 @@ func TestIndex(t *testing.T) {
 		r = prepareGetRequest(ctx, "bucket", "dummy")
 		hc.Handler().DownloadByAddressOrBucketName(r)
 		require.Contains(t, string(r.Response.Body()), "Index of s3://bucket/dummy")
-
-		r = prepareGetRequest(ctx, "bucket", "")
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/bucket/">..</a>`)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/bucket//">/</a>`)
-
-		r = prepareGetRequest(ctx, "bucket", "/")
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/bucket/">..</a>`)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/bucket//dir/">dir/</a>`)
-
-		r = prepareGetRequest(ctx, "bucket", "/dir/")
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/bucket//">..</a>`)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/bucket//dir%2F..">..</a>`)
 	})
 
 	t.Run("native", func(t *testing.T) {
@@ -615,13 +575,6 @@ func TestIndex(t *testing.T) {
 		obj1.SetAttributes(prepareObjectAttributes(object.AttributeFilePath, "prefix/obj1"))
 		hc.frostfs.objects[cnrID.String()+"/"+obj1ID.String()] = obj1
 
-		obj2ID := oidtest.ID()
-		obj2 := object.New()
-		obj2.SetID(obj2ID)
-		obj2.SetPayload([]byte("obj2"))
-		obj2.SetAttributes(prepareObjectAttributes(object.AttributeFilePath, "/dir/.."))
-		hc.frostfs.objects[cnrID.String()+"/"+obj2ID.String()] = obj2
-
 		r := prepareGetRequest(ctx, cnrID.EncodeToString(), "prefix/")
 		hc.Handler().DownloadByAddressOrBucketName(r)
 		require.Equal(t, fasthttp.StatusNotFound, r.Response.StatusCode())
@@ -645,21 +598,6 @@ func TestIndex(t *testing.T) {
 		r = prepareGetRequest(ctx, cnrID.EncodeToString(), "dummy")
 		hc.Handler().DownloadByAddressOrBucketName(r)
 		require.Contains(t, string(r.Response.Body()), "Index of frostfs://"+cnrID.String()+"/dummy")
-
-		r = prepareGetRequest(ctx, cnrID.EncodeToString(), "")
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/`+cnrID.String()+`/">..</a>`)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/`+cnrID.String()+`//">/</a>`)
-
-		r = prepareGetRequest(ctx, cnrID.EncodeToString(), "/")
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/`+cnrID.String()+`/">..</a>`)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/`+cnrID.String()+`//dir/">dir/</a>`)
-
-		r = prepareGetRequest(ctx, cnrID.EncodeToString(), "/dir/")
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/`+cnrID.String()+`//">..</a>`)
-		require.Contains(t, string(r.Response.Body()), `<a href="/get/`+cnrID.String()+`/`+obj2ID.String()+`">..</a>`)
 	})
 }
 

internal/logs/logs.go

@@ -127,7 +127,6 @@ const (
 	EmptyAccessControlRequestMethodHeader = "empty Access-Control-Request-Method request header"
 	CORSRuleWasNotMatched                 = "cors rule was not matched"
 	CouldntCacheCors                      = "couldn't cache cors"
-	BrowseIndex                           = "browse index"
 )
 
 // Log messages with the "external_storage" tag.

internal/templates/index.gotmpl

@@ -56,24 +56,40 @@
     </thead>
     <tbody>
     {{ $parentPrefix := getParent .Prefix }}
+    {{if $parentPrefix }}
         <tr>
             <td>
-                ⮐<a href="/get/{{$container}}/{{ urlencode $parentPrefix }}">..</a>
+                ⮐<a href="/get/{{$container}}{{ urlencode $parentPrefix }}/">..</a>
             </td>
             <td></td>
             <td></td>
             <td></td>
             <td></td>
         </tr>
+    {{else}}
+        <tr>
+            <td>
+                ⮐<a href="/get/{{$container}}/">..</a>
+            </td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+        </tr>
+    {{end}}
     {{range .Objects}}
         <tr>
             <td>
                 {{if .IsDir}}
                     🗀
-                    <a href="{{.GetURL}}/">{{.FileName}}/</a>
+                    <a href="{{.GetURL}}/">
+                        {{.FileName}}/
+                    </a>
                 {{else}}
                     🗎
-                    <a href="{{ .GetURL }}">{{.FileName}}</a>
+                    <a href="{{ .GetURL }}">
+                        {{.FileName}}
+                    </a>
                 {{end}}
             </td>
             <td>{{.OID}}</td>

tree/tree.go

@@ -323,23 +323,17 @@ func pathFromName(objectName string) []string {
 	return strings.Split(objectName, separator)
 }
 
-func (c *Tree) GetSubTreeByPrefix(ctx context.Context, bktInfo *data.BucketInfo, prefix *string, latestOnly bool) ([]data.NodeInfo, error) {
+func (c *Tree) GetSubTreeByPrefix(ctx context.Context, bktInfo *data.BucketInfo, prefix string, latestOnly bool) ([]data.NodeInfo, error) {
 	ctx, span := tracing.StartSpanFromContext(ctx, "tree.GetSubTreeByPrefix")
 	defer span.End()
 
-	rootID := []uint64{0}
+	rootID, err := c.getPrefixNodeID(ctx, bktInfo, versionTree, strings.Split(prefix, separator))
-	var err error
-
-	if prefix != nil {
-		rootID, err = c.getPrefixNodeID(ctx, bktInfo, versionTree, strings.Split(*prefix, separator))
 	if err != nil {
 		if errors.Is(err, ErrNodeNotFound) {
 			return nil, nil
 		}
 		return nil, err
 	}
-	}
-
 	subTree, err := c.service.GetSubTree(ctx, bktInfo, versionTree, rootID, 2, false)
 	if err != nil {
 		if errors.Is(err, ErrNodeNotFound) {