AclHandlers

11 files changed, 299 insertions, 35 deletions

diff --git a/docker/compose/local-cluster-compose.yml b/docker/compose/local-cluster-compose.yml
index 82095ae18..7fb93e15b 100644
--- a/docker/compose/local-cluster-compose.yml
+++ b/docker/compose/local-cluster-compose.yml
@@ -6,25 +6,37 @@ services:
     ports:
       - 9333:9333
       - 19333:19333
-    command: "master -ip=master0 -port=9333 -peers=master0:9333,master1:9334,master2:9335 -mdir=/data/m1"
+    command: "-v=1 master -volumeSizeLimitMB 100 -resumeState=false -ip=master0 -port=9333 -peers=master0:9333,master1:9334,master2:9335 -mdir=/tmp"
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
   master1:
     image: chrislusf/seaweedfs:local
     ports:
       - 9334:9334
       - 19334:19334
-    command: "master -ip=master1 -port=9334 -peers=master0:9333,master1:9334,master2:9335 -mdir=/data/m2"
+    command: "-v=1 master -volumeSizeLimitMB 100 -resumeState=false -ip=master1 -port=9334 -peers=master0:9333,master1:9334,master2:9335 -mdir=/tmp"
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
   master2:
     image: chrislusf/seaweedfs:local
     ports:
       - 9335:9335
       - 19335:19335
-    command: "master -ip=master2 -port=9335 -peers=master0:9333,master1:9334,master2:9335 -mdir=/data/m3"
+    command: "-v=1 master -volumeSizeLimitMB 100 -resumeState=false -ip=master2 -port=9335 -peers=master0:9333,master1:9334,master2:9335 -mdir=/tmp"
+    environment:
+      WEED_MASTER_VOLUME_GROWTH_COPY_1: 1
+      WEED_MASTER_VOLUME_GROWTH_COPY_2: 2
+      WEED_MASTER_VOLUME_GROWTH_COPY_OTHER: 1
   volume1:
     image: chrislusf/seaweedfs:local
     ports:
       - 8080:8080
       - 18080:18080
-    command: 'volume -mserver="master0:9333,master1:9334,master2:9335" -port=8080 -ip=volume1 -publicUrl=localhost:8080 -preStopSeconds=1 -disk=ssd1'
+    command: 'volume -dataCenter dc1 -rack v1 -mserver="master0:9333,master1:9334,master2:9335" -port=8080 -ip=volume1 -publicUrl=localhost:8080 -preStopSeconds=1'
     depends_on:
       - master0
       - master1
@@ -34,7 +46,7 @@ services:
     ports:
       - 8082:8082
       - 18082:18082
-    command: 'volume -mserver="master0:9333,master1:9334,master2:9335" -port=8082 -ip=volume2 -publicUrl=localhost:8082 -preStopSeconds=1 -disk=ssd1'
+    command: 'volume -dataCenter dc2 -rack v2 -mserver="master0:9333,master1:9334,master2:9335" -port=8082 -ip=volume2 -publicUrl=localhost:8082 -preStopSeconds=1'
     depends_on:
       - master0
       - master1
@@ -44,7 +56,7 @@ services:
     ports:
       - 8083:8083
       - 18083:18083
-    command: 'volume -mserver="master0:9333,master1:9334,master2:9335" -port=8083 -ip=volume3 -publicUrl=localhost:8083 -preStopSeconds=1'
+    command: 'volume -dataCenter dc3 -rack v3 -mserver="master0:9333,master1:9334,master2:9335" -port=8083 -ip=volume3 -publicUrl=localhost:8083 -preStopSeconds=1'
     depends_on:
       - master0
       - master1
@@ -54,7 +66,8 @@ services:
     ports:
       - 8888:8888
       - 18888:18888
-    command: 'filer -master="master0:9333,master1:9334,master2:9335"'
+      - 8111:8111
+    command: 'filer -defaultReplicaPlacement 000 -iam -master="master0:9333,master1:9334,master2:9335"'
     depends_on:
       - master0
       - master1
@@ -65,7 +78,7 @@ services:
     image: chrislusf/seaweedfs:local
     ports:
       - 8333:8333
-    command: 's3 -filer="filer:8888"'
+    command: '-v=9 s3 -filer="filer:8888"'
     depends_on:
       - master0
       - master1
@@ -73,3 +86,19 @@ services:
       - volume1
       - volume2
       - filer
+  minio:
+    image: minio/minio
+    ports:
+      - 9000:9000
+    command: 'minio server /data'
+    environment:
+      MINIO_ACCESS_KEY: "some_access_key1"
+      MINIO_SECRET_KEY: "some_secret_key1"
+    depends_on:
+      - s3
+  nexus:
+    image: registry.tochka-tech.com/oci_nexus/nexus:v3.34.1-2
+    ports:
+      - 8081:8081
+    depends_on:
+      - s3
\ No newline at end of file
diff --git a/weed/filer/filer_conf.go b/weed/filer/filer_conf.go
index c58b26dc2..6a23189b8 100644
--- a/weed/filer/filer_conf.go
+++ b/weed/filer/filer_conf.go
@@ -3,6 +3,10 @@ package filer
 import (
 	"bytes"
 	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/wdclient"
+	"google.golang.org/grpc"
 	"io"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
@@ -26,6 +30,29 @@ type FilerConf struct {
 	rules ptrie.Trie
 }
 
+func ReadFilerConf(filerGrpcAddress pb.ServerAddress, grpcDialOption grpc.DialOption, masterClient *wdclient.MasterClient) (*FilerConf, error) {
+	var buf bytes.Buffer
+	if err := pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		if masterClient != nil {
+			return ReadEntry(masterClient, client, DirectoryEtcSeaweedFS, FilerConfName, &buf)
+		} else {
+			content, err := ReadInsideFiler(client, DirectoryEtcSeaweedFS, FilerConfName)
+			buf = *bytes.NewBuffer(content)
+			return err
+		}
+	}); err != nil && err != filer_pb.ErrNotFound {
+		return nil, fmt.Errorf("read %s/%s: %v", DirectoryEtcSeaweedFS, FilerConfName, err)
+	}
+
+	fc := NewFilerConf()
+	if buf.Len() > 0 {
+		if err := fc.LoadFromBytes(buf.Bytes()); err != nil {
+			return nil, fmt.Errorf("parse %s/%s: %v", DirectoryEtcSeaweedFS, FilerConfName, err)
+		}
+	}
+	return fc, nil
+}
+
 func NewFilerConf() (fc *FilerConf) {
 	fc = &FilerConf{
 		rules: ptrie.New(),
diff --git a/weed/s3api/auth_credentials.go b/weed/s3api/auth_credentials.go
index 44c3f7aa7..cd1b3adfb 100644
--- a/weed/s3api/auth_credentials.go
+++ b/weed/s3api/auth_credentials.go
@@ -37,6 +37,31 @@ type Credential struct {
 	SecretKey string
 }
 
+func (action Action) isAdmin() bool {
+	return strings.HasPrefix(string(action), s3_constants.ACTION_ADMIN)
+}
+
+func (action Action) isOwner(bucket string) bool {
+	return string(action) == s3_constants.ACTION_ADMIN+":"+bucket
+}
+
+func (action Action) overBucket(bucket string) bool {
+	return strings.HasSuffix(string(action), ":"+bucket) || strings.HasSuffix(string(action), ":*")
+}
+
+func (action Action) getPermission() Permission {
+	switch act := strings.Split(string(action), ":")[0]; act {
+	case s3_constants.ACTION_ADMIN:
+		return Permission("FULL_CONTROL")
+	case s3_constants.ACTION_WRITE:
+		return Permission("WRITE")
+	case s3_constants.ACTION_READ:
+		return Permission("READ")
+	default:
+		return Permission("")
+	}
+}
+
 func NewIdentityAccessManagement(option *S3ApiServerOption) *IdentityAccessManagement {
 	iam := &IdentityAccessManagement{
 		domain: option.DomainName,
diff --git a/weed/s3api/s3api_bucket_handlers.go b/weed/s3api/s3api_bucket_handlers.go
index 024c90c8a..13129dbe4 100644
--- a/weed/s3api/s3api_bucket_handlers.go
+++ b/weed/s3api/s3api_bucket_handlers.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/xml"
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
 	"math"
 	"net/http"
@@ -205,3 +206,79 @@ func (s3a *S3ApiServer) hasAccess(r *http.Request, entry *filer_pb.Entry) bool {
 	}
 	return true
 }
+
+// GetBucketAclHandler Get Bucket ACL
+// https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketAcl.html
+func (s3a *S3ApiServer) GetBucketAclHandler(w http.ResponseWriter, r *http.Request) {
+	// collect parameters
+	bucket, _ := getBucketAndObject(r)
+	glog.V(3).Infof("GetBucketAclHandler %s", bucket)
+
+	if err := s3a.checkBucket(r, bucket); err != s3err.ErrNone {
+		s3err.WriteErrorResponse(w, err, r)
+		return
+	}
+
+	response := AccessControlPolicy{}
+	for _, ident := range s3a.iam.identities {
+		if len(ident.Credentials) == 0 {
+			continue
+		}
+		for _, action := range ident.Actions {
+			if !action.overBucket(bucket) || action.getPermission() == "" {
+				continue
+			}
+			id := ident.Credentials[0].AccessKey
+			if response.Owner.DisplayName == "" && action.isOwner(bucket) && len(ident.Credentials) > 0 {
+				response.Owner.DisplayName = ident.Name
+				response.Owner.ID = id
+			}
+			response.AccessControlList.Grant = append(response.AccessControlList.Grant, Grant{
+				Grantee: Grantee{
+					ID:          id,
+					DisplayName: ident.Name,
+					Type:        "CanonicalUser",
+					XMLXSI:      "CanonicalUser",
+					XMLNS:       "http://www.w3.org/2001/XMLSchema-instance"},
+				Permission: action.getPermission(),
+			})
+		}
+	}
+	writeSuccessResponseXML(w, response)
+}
+
+// GetBucketLifecycleConfigurationHandler Get Bucket Lifecycle configuration
+// https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetBucketLifecycleConfiguration.html
+func (s3a *S3ApiServer) GetBucketLifecycleConfigurationHandler(w http.ResponseWriter, r *http.Request) {
+	// collect parameters
+	bucket, _ := getBucketAndObject(r)
+	glog.V(3).Infof("GetBucketAclHandler %s", bucket)
+
+	if err := s3a.checkBucket(r, bucket); err != s3err.ErrNone {
+		s3err.WriteErrorResponse(w, err, r)
+		return
+	}
+	fc, err := filer.ReadFilerConf(s3a.option.Filer, s3a.option.GrpcDialOption, nil)
+	if err != nil {
+		glog.Errorf("GetBucketLifecycleConfigurationHandler: %s", err)
+		s3err.WriteErrorResponse(w, s3err.ErrInternalError, r)
+		return
+	}
+	s3err.WriteErrorResponse(w, s3err.ErrNoSuchLifecycleConfiguration, r)
+}
+
+// PutBucketLifecycleConfigurationHandler Put Bucket Lifecycle configuration
+// https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutBucketLifecycleConfiguration.html
+func (s3a *S3ApiServer) PutBucketLifecycleConfigurationHandler(w http.ResponseWriter, r *http.Request) {
+
+	s3err.WriteErrorResponse(w, s3err.ErrNotImplemented, r)
+
+}
+
+// DeleteBucketMetricsConfiguration Delete Bucket Lifecycle
+// https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteBucketLifecycle.html
+func (s3a *S3ApiServer) DeleteBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
+
+	s3err.WriteErrorResponse(w, s3err.ErrNotImplemented, r)
+
+}
diff --git a/weed/s3api/s3api_handlers.go b/weed/s3api/s3api_handlers.go
index 2149ad9cd..e99abb8e2 100644
--- a/weed/s3api/s3api_handlers.go
+++ b/weed/s3api/s3api_handlers.go
@@ -21,6 +21,7 @@ func (s3a *S3ApiServer) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) err
 	}, s3a.option.Filer.ToGrpcAddress(), s3a.option.GrpcDialOption)
 
 }
+
 func (s3a *S3ApiServer) AdjustedUrl(location *filer_pb.Location) string {
 	return location.Url
 }
diff --git a/weed/s3api/s3api_object_skip_handlers.go b/weed/s3api/s3api_object_skip_handlers.go
index 935787fbb..160d02475 100644
--- a/weed/s3api/s3api_object_skip_handlers.go
+++ b/weed/s3api/s3api_object_skip_handlers.go
@@ -4,6 +4,14 @@ import (
 	"net/http"
 )
 
+// GetObjectAclHandler Put object ACL
+// https://docs.aws.amazon.com/AmazonS3/latest/API/API_GetObjectAcl.html
+func (s3a *S3ApiServer) GetObjectAclHandler(w http.ResponseWriter, r *http.Request) {
+
+	w.WriteHeader(http.StatusNoContent)
+
+}
+
 // PutObjectAclHandler Put object ACL
 // https://docs.aws.amazon.com/AmazonS3/latest/API/API_PutObjectAcl.html
 func (s3a *S3ApiServer) PutObjectAclHandler(w http.ResponseWriter, r *http.Request) {
diff --git a/weed/s3api/s3api_policy.go b/weed/s3api/s3api_policy.go
new file mode 100644
index 000000000..20dac9564
--- /dev/null
+++ b/weed/s3api/s3api_policy.go
@@ -0,0 +1,88 @@
+package s3api
+
+import (
+	"encoding/xml"
+	"time"
+)
+
+// Status represents lifecycle configuration status
+type ruleStatus string
+
+// Supported status types
+const (
+	Enabled  ruleStatus = "Enabled"
+	Disabled ruleStatus = "Disabled"
+)
+
+// Lifecycle - Configuration for bucket lifecycle.
+type Lifecycle struct {
+	XMLName xml.Name `xml:"LifecycleConfiguration"`
+	Rules   []Rule   `xml:"Rule"`
+}
+
+// Rule - a rule for lifecycle configuration.
+type Rule struct {
+	XMLName    xml.Name   `xml:"Rule"`
+	ID         string     `xml:"ID,omitempty"`
+	Status     ruleStatus `xml:"Status"`
+	Filter     Filter     `xml:"Filter,omitempty"`
+	Prefix     Prefix     `xml:"Prefix,omitempty"`
+	Expiration Expiration `xml:"Expiration,omitempty"`
+	Transition Transition `xml:"Transition,omitempty"`
+}
+
+// Filter - a filter for a lifecycle configuration Rule.
+type Filter struct {
+	XMLName xml.Name `xml:"Filter"`
+	set     bool
+
+	Prefix Prefix
+
+	And    And
+	andSet bool
+
+	Tag    Tag
+	tagSet bool
+}
+
+// Prefix holds the prefix xml tag in <Rule> and <Filter>
+type Prefix struct {
+	string
+	set bool
+}
+
+// And - a tag to combine a prefix and multiple tags for lifecycle configuration rule.
+type And struct {
+	XMLName xml.Name `xml:"And"`
+	Prefix  Prefix   `xml:"Prefix,omitempty"`
+	Tags    []Tag    `xml:"Tag,omitempty"`
+}
+
+// Expiration - expiration actions for a rule in lifecycle configuration.
+type Expiration struct {
+	XMLName      xml.Name           `xml:"Expiration"`
+	Days         int                `xml:"Days,omitempty"`
+	Date         time.Time          `xml:"Date,omitempty"`
+	DeleteMarker ExpireDeleteMarker `xml:"ExpiredObjectDeleteMarker"`
+
+	set bool
+}
+
+// ExpireDeleteMarker represents value of ExpiredObjectDeleteMarker field in Expiration XML element.
+type ExpireDeleteMarker struct {
+	val bool
+	set bool
+}
+
+// Transition - transition actions for a rule in lifecycle configuration.
+type Transition struct {
+	XMLName      xml.Name  `xml:"Transition"`
+	Days         int       `xml:"Days,omitempty"`
+	Date         time.Time `xml:"Date,omitempty"`
+	StorageClass string    `xml:"StorageClass,omitempty"`
+
+	set bool
+}
+
+// TransitionDays is a type alias to unmarshal Days in Transition
+type TransitionDays int
diff --git a/weed/s3api/s3api_server.go b/weed/s3api/s3api_server.go
index 5e72fdcb3..ee961bf3b 100644
--- a/weed/s3api/s3api_server.go
+++ b/weed/s3api/s3api_server.go
@@ -115,14 +115,30 @@ func (s3a *S3ApiServer) registerRouter(router *mux.Router) {
 		bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.ListObjectsV2Handler, ACTION_LIST), "LIST")).Queries("list-type", "2")
 		// GetObject, but directory listing is not supported
 		bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(track(s3a.iam.Auth(s3a.GetObjectHandler, ACTION_READ), "GET"))
-		// ListObjectsV1 (Legacy)
-		bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.ListObjectsV1Handler, ACTION_LIST), "LIST"))
 
 		// PostPolicy
 		bucket.Methods("POST").HeadersRegexp("Content-Type", "multipart/form-data*").HandlerFunc(track(s3a.iam.Auth(s3a.PostPolicyBucketHandler, ACTION_WRITE), "POST"))
 
 		// DeleteMultipleObjects
 		bucket.Methods("POST").HandlerFunc(track(s3a.iam.Auth(s3a.DeleteMultipleObjectsHandler, ACTION_WRITE), "DELETE")).Queries("delete", "")
+
+		// GetBucketACL
+		bucket.Methods("GET").HandlerFunc(s3a.iam.Auth(s3a.GetBucketAclHandler, ACTION_READ)).Queries("acl", "")
+
+		// GetObjectACL
+		bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(s3a.iam.Auth(s3a.GetObjectAclHandler, ACTION_READ)).Queries("acl", "")
+
+		// GetBucketLifecycleConfiguration
+		bucket.Methods("GET").HandlerFunc(s3a.iam.Auth(s3a.GetBucketLifecycleConfigurationHandler, ACTION_READ)).Queries("lifecycle", "")
+
+		// PutBucketLifecycleConfiguration
+		bucket.Methods("PUT").HandlerFunc(s3a.iam.Auth(s3a.PutBucketLifecycleConfigurationHandler, ACTION_WRITE)).Queries("lifecycle", "")
+
+		// DeleteBucketLifecycleConfiguration
+		bucket.Methods("DELETE").HandlerFunc(s3a.iam.Auth(s3a.DeleteBucketLifecycleHandler, ACTION_WRITE)).Queries("lifecycle", "")
+
+		// ListObjectsV1 (Legacy)
+		bucket.Methods("GET").HandlerFunc(track(s3a.iam.Auth(s3a.ListObjectsV1Handler, ACTION_LIST), "LIST"))
 		/*
 
 			// not implemented
@@ -132,8 +148,6 @@ func (s3a *S3ApiServer) registerRouter(router *mux.Router) {
 			bucket.Methods("GET").HandlerFunc(s3a.GetBucketPolicyHandler).Queries("policy", "")
 			// GetObjectACL
 			bucket.Methods("GET").Path("/{object:.+}").HandlerFunc(s3a.GetObjectACLHandler).Queries("acl", "")
-			// GetBucketACL
-			bucket.Methods("GET").HandlerFunc(s3a.GetBucketACLHandler).Queries("acl", "")
 			// PutBucketPolicy
 			bucket.Methods("PUT").HandlerFunc(s3a.PutBucketPolicyHandler).Queries("policy", "")
 			// DeleteBucketPolicy
diff --git a/weed/s3api/s3api_xsd_generated.go b/weed/s3api/s3api_xsd_generated.go
index 9d62afc4e..a8e4ef404 100644
--- a/weed/s3api/s3api_xsd_generated.go
+++ b/weed/s3api/s3api_xsd_generated.go
@@ -8,12 +8,12 @@ import (
 )
 
 type AccessControlList struct {
-	Grant []Grant `xml:"http://s3.amazonaws.com/doc/2006-03-01/ Grant,omitempty"`
+	Grant []Grant `xml:"Grant,omitempty"`
 }
 
 type AccessControlPolicy struct {
-	Owner             CanonicalUser     `xml:"http://s3.amazonaws.com/doc/2006-03-01/ Owner"`
-	AccessControlList AccessControlList `xml:"http://s3.amazonaws.com/doc/2006-03-01/ AccessControlList"`
+	Owner             CanonicalUser     `xml:"Owner"`
+	AccessControlList AccessControlList `xml:"AccessControlList"`
 }
 
 type AmazonCustomerByEmail struct {
@@ -467,11 +467,17 @@ func (t *GetObjectResult) UnmarshalXML(d *xml.Decoder, start xml.StartElement) e
 }
 
 type Grant struct {
-	Grantee    Grantee    `xml:"http://s3.amazonaws.com/doc/2006-03-01/ Grantee"`
-	Permission Permission `xml:"http://s3.amazonaws.com/doc/2006-03-01/ Permission"`
+	Grantee    Grantee    `xml:"Grantee"`
+	Permission Permission `xml:"Permission"`
 }
 
 type Grantee struct {
+	XMLNS       string `xml:"xmlns:xsi,attr"`
+	XMLXSI      string `xml:"xsi:type,attr"`
+	Type        string `xml:"Type"`
+	ID          string `xml:"ID,omitempty"`
+	DisplayName string `xml:"DisplayName,omitempty"`
+	URI         string `xml:"URI,omitempty"`
 }
 
 type Group struct {
diff --git a/weed/s3api/s3err/s3api_errors.go b/weed/s3api/s3err/s3api_errors.go
index a46bd0f04..30b7c03b3 100644
--- a/weed/s3api/s3err/s3api_errors.go
+++ b/weed/s3api/s3err/s3api_errors.go
@@ -51,6 +51,7 @@ const (
 	ErrBucketAlreadyExists
 	ErrBucketAlreadyOwnedByYou
 	ErrNoSuchBucket
+	ErrNoSuchLifecycleConfiguration
 	ErrNoSuchKey
 	ErrNoSuchUpload
 	ErrInvalidBucketName
@@ -163,6 +164,11 @@ var errorCodeResponse = map[ErrorCode]APIError{
 		Description:    "The specified bucket does not exist",
 		HTTPStatusCode: http.StatusNotFound,
 	},
+	ErrNoSuchLifecycleConfiguration: {
+		Code:           "NoSuchLifecycleConfiguration",
+		Description:    "The lifecycle configuration does not exist",
+		HTTPStatusCode: http.StatusNotFound,
+	},
 	ErrNoSuchKey: {
 		Code:           "NoSuchKey",
 		Description:    "The specified key does not exist.",
diff --git a/weed/shell/command_fs_configure.go b/weed/shell/command_fs_configure.go
index 0aae51d74..25761d580 100644
--- a/weed/shell/command_fs_configure.go
+++ b/weed/shell/command_fs_configure.go
@@ -62,7 +62,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 		return nil
 	}
 
-	fc, err := readFilerConf(commandEnv)
+	fc, err := filer.ReadFilerConf(commandEnv.option.FilerAddress, commandEnv.option.GrpcDialOption, commandEnv.MasterClient)
 	if err != nil {
 		return err
 	}
@@ -122,20 +122,3 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 	return nil
 
 }
-
-func readFilerConf(commandEnv *CommandEnv) (*filer.FilerConf, error) {
-	var buf bytes.Buffer
-	if err := commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
-		return filer.ReadEntry(commandEnv.MasterClient, client, filer.DirectoryEtcSeaweedFS, filer.FilerConfName, &buf)
-	}); err != nil && err != filer_pb.ErrNotFound {
-		return nil, fmt.Errorf("read %s/%s: %v", filer.DirectoryEtcSeaweedFS, filer.FilerConfName, err)
-	}
-
-	fc := filer.NewFilerConf()
-	if buf.Len() > 0 {
-		if err := fc.LoadFromBytes(buf.Bytes()); err != nil {
-			return nil, fmt.Errorf("parse %s/%s: %v", filer.DirectoryEtcSeaweedFS, filer.FilerConfName, err)
-		}
-	}
-	return fc, nil
-}