diff --git a/build/images/base/README.md b/build/images/base/README.md
index 172e5f7970c..0494de04542 100644
--- a/build/images/base/README.md
+++ b/build/images/base/README.md
@@ -23,4 +23,28 @@ export GOGCFLAGS="all=-N -l"
 export BASE_IMAGE=dragonflyoss/base:bpftrace-v0.13.0-go-v1.16.6
 
 make docker-build
-```
\ No newline at end of file
+```
+
+# Debug With Delve
+
+## Prepare Code for Debug
+
+```shell
+COMMIT_ID=c1c3d652
+mkdir -p /go/src/d7y.io/dragonfly
+git clone /~https://github.com/dragonflyoss/Dragonfly2.git /go/src/d7y.io/dragonfly/v2
+git reset --hard ${COMMIT_ID}
+```
+
+## Debug Operations
+
+1. Attach Process
+
+```shell
+pid=$(pidof scheduler) # or dfget, cdn, manager
+dlv attach $pid
+```
+
+2. Debug
+
+Follow /~https://github.com/go-delve/delve/tree/v1.7.0/Documentation/cli
\ No newline at end of file
diff --git a/client/daemon/daemon.go b/client/daemon/daemon.go
index de72f0c0f07..720ca603504 100644
--- a/client/daemon/daemon.go
+++ b/client/daemon/daemon.go
@@ -29,10 +29,8 @@ import (
 	"sync"
 	"time"
 
-	"d7y.io/dragonfly/v2/internal/dfpath"
-	"d7y.io/dragonfly/v2/internal/idgen"
-	"d7y.io/dragonfly/v2/pkg/util/net/iputils"
 	"github.com/pkg/errors"
+	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
 	"golang.org/x/sync/errgroup"
 	"golang.org/x/time/rate"
 	"google.golang.org/grpc"
@@ -43,15 +41,17 @@ import (
 	"d7y.io/dragonfly/v2/client/daemon/gc"
 	"d7y.io/dragonfly/v2/client/daemon/peer"
 	"d7y.io/dragonfly/v2/client/daemon/proxy"
-	"d7y.io/dragonfly/v2/client/daemon/service"
+	"d7y.io/dragonfly/v2/client/daemon/rpcserver"
 	"d7y.io/dragonfly/v2/client/daemon/storage"
 	"d7y.io/dragonfly/v2/client/daemon/upload"
 	logger "d7y.io/dragonfly/v2/internal/dflog"
+	"d7y.io/dragonfly/v2/internal/dfpath"
+	"d7y.io/dragonfly/v2/internal/idgen"
 	"d7y.io/dragonfly/v2/pkg/basic/dfnet"
 	"d7y.io/dragonfly/v2/pkg/rpc"
 	"d7y.io/dragonfly/v2/pkg/rpc/scheduler"
 	schedulerclient "d7y.io/dragonfly/v2/pkg/rpc/scheduler/client"
-	"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
+	"d7y.io/dragonfly/v2/pkg/util/net/iputils"
 )
 
 type Daemon interface {
@@ -72,7 +72,7 @@ type clientDaemon struct {
 
 	Option config.DaemonOption
 
-	ServiceManager service.Manager
+	RPCManager     rpcserver.Server
 	UploadManager  upload.Manager
 	ProxyManager   proxy.Manager
 	StorageManager storage.Manager
@@ -154,7 +154,7 @@ func New(opt *config.DaemonOption) (Daemon, error) {
 		}
 		peerServerOption = append(peerServerOption, grpc.Creds(tlsCredentials))
 	}
-	serviceManager, err := service.NewManager(host, peerTaskManager, storageManager, downloadServerOption, peerServerOption)
+	rpcManager, err := rpcserver.NewServer(host, peerTaskManager, storageManager, downloadServerOption, peerServerOption)
 	if err != nil {
 		return nil, err
 	}
@@ -177,7 +177,7 @@ func New(opt *config.DaemonOption) (Daemon, error) {
 		schedPeerHost: host,
 		Option:        *opt,
 
-		ServiceManager:  serviceManager,
+		RPCManager:      rpcManager,
 		PeerTaskManager: peerTaskManager,
 		PieceManager:    pieceManager,
 		ProxyManager:    proxyManager,
@@ -327,7 +327,7 @@ func (cd *clientDaemon) Serve() error {
 	g.Go(func() error {
 		defer downloadListener.Close()
 		logger.Infof("serve download grpc at unix://%s", cd.Option.Download.DownloadGRPC.UnixListen.Socket)
-		if err := cd.ServiceManager.ServeDownload(downloadListener); err != nil {
+		if err := cd.RPCManager.ServeDownload(downloadListener); err != nil {
 			logger.Errorf("failed to serve for download grpc service: %v", err)
 			return err
 		}
@@ -338,7 +338,7 @@ func (cd *clientDaemon) Serve() error {
 	g.Go(func() error {
 		defer peerListener.Close()
 		logger.Infof("serve peer grpc at %s://%s", peerListener.Addr().Network(), peerListener.Addr().String())
-		if err := cd.ServiceManager.ServePeer(peerListener); err != nil {
+		if err := cd.RPCManager.ServePeer(peerListener); err != nil {
 			logger.Errorf("failed to serve for peer grpc service: %v", err)
 			return err
 		}
@@ -388,7 +388,7 @@ func (cd *clientDaemon) Serve() error {
 			case <-time.After(cd.Option.AliveTime.Duration):
 				var keepalives = []clientutil.KeepAlive{
 					cd.StorageManager,
-					cd.ServiceManager,
+					cd.RPCManager,
 				}
 				var keep bool
 				for _, keepalive := range keepalives {
@@ -416,7 +416,7 @@ func (cd *clientDaemon) Stop() {
 	cd.once.Do(func() {
 		close(cd.done)
 		cd.GCManager.Stop()
-		cd.ServiceManager.Stop()
+		cd.RPCManager.Stop()
 		cd.UploadManager.Stop()
 
 		if cd.ProxyManager.IsEnabled() {
diff --git a/client/daemon/service/manager.go b/client/daemon/rpcserver/rpcserver.go
similarity index 88%
rename from client/daemon/service/manager.go
rename to client/daemon/rpcserver/rpcserver.go
index 345c3ea1c5d..81c8e792f13 100644
--- a/client/daemon/service/manager.go
+++ b/client/daemon/rpcserver/rpcserver.go
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package service
+package rpcserver
 
 import (
 	"context"
@@ -40,14 +40,14 @@ import (
 	"d7y.io/dragonfly/v2/pkg/rpc/scheduler"
 )
 
-type Manager interface {
+type Server interface {
 	clientutil.KeepAlive
 	ServeDownload(listener net.Listener) error
 	ServePeer(listener net.Listener) error
 	Stop()
 }
 
-type manager struct {
+type server struct {
 	clientutil.KeepAlive
 	peerHost        *scheduler.PeerHost
 	peerTaskManager peer.TaskManager
@@ -58,12 +58,12 @@ type manager struct {
 	uploadAddr     string
 }
 
-var _ dfdaemonserver.DaemonServer = (*manager)(nil)
-var _ Manager = (*manager)(nil)
+var _ dfdaemonserver.DaemonServer = (*server)(nil)
+var _ Server = (*server)(nil)
 
-func NewManager(peerHost *scheduler.PeerHost, peerTaskManager peer.TaskManager, storageManager storage.Manager, downloadOpts []grpc.ServerOption, peerOpts []grpc.ServerOption) (Manager, error) {
-	mgr := &manager{
-		KeepAlive:       clientutil.NewKeepAlive("service manager"),
+func NewServer(peerHost *scheduler.PeerHost, peerTaskManager peer.TaskManager, storageManager storage.Manager, downloadOpts []grpc.ServerOption, peerOpts []grpc.ServerOption) (Server, error) {
+	mgr := &server{
+		KeepAlive:       clientutil.NewKeepAlive("rpc server"),
 		peerHost:        peerHost,
 		peerTaskManager: peerTaskManager,
 		storageManager:  storageManager,
@@ -73,21 +73,21 @@ func NewManager(peerHost *scheduler.PeerHost, peerTaskManager peer.TaskManager,
 	return mgr, nil
 }
 
-func (m *manager) ServeDownload(listener net.Listener) error {
+func (m *server) ServeDownload(listener net.Listener) error {
 	return m.downloadServer.Serve(listener)
 }
 
-func (m *manager) ServePeer(listener net.Listener) error {
+func (m *server) ServePeer(listener net.Listener) error {
 	m.uploadAddr = fmt.Sprintf("%s:%d", m.peerHost.Ip, m.peerHost.DownPort)
 	return m.peerServer.Serve(listener)
 }
 
-func (m *manager) Stop() {
+func (m *server) Stop() {
 	m.peerServer.GracefulStop()
 	m.downloadServer.GracefulStop()
 }
 
-func (m *manager) GetPieceTasks(ctx context.Context, request *base.PieceTaskRequest) (*base.PiecePacket, error) {
+func (m *server) GetPieceTasks(ctx context.Context, request *base.PieceTaskRequest) (*base.PiecePacket, error) {
 	m.Keep()
 	p, err := m.storageManager.GetPieces(ctx, request)
 	if err != nil {
@@ -128,12 +128,12 @@ func (m *manager) GetPieceTasks(ctx context.Context, request *base.PieceTaskRequ
 	return p, nil
 }
 
-func (m *manager) CheckHealth(context.Context) error {
+func (m *server) CheckHealth(context.Context) error {
 	m.Keep()
 	return nil
 }
 
-func (m *manager) Download(ctx context.Context,
+func (m *server) Download(ctx context.Context,
 	req *dfdaemongrpc.DownRequest, results chan<- *dfdaemongrpc.DownResult) error {
 	m.Keep()
 	// init peer task request, peer uses different peer id to generate every request
diff --git a/client/daemon/service/manager_test.go b/client/daemon/rpcserver/rpcserver_test.go
similarity index 99%
rename from client/daemon/service/manager_test.go
rename to client/daemon/rpcserver/rpcserver_test.go
index 7bda72f0573..931c9c6a597 100644
--- a/client/daemon/service/manager_test.go
+++ b/client/daemon/rpcserver/rpcserver_test.go
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package service
+package rpcserver
 
 import (
 	"context"
@@ -73,7 +73,7 @@ func TestDownloadManager_ServeDownload(t *testing.T) {
 			}()
 			return ch, false, nil
 		})
-	m := &manager{
+	m := &server{
 		KeepAlive:       clientutil.NewKeepAlive("test"),
 		peerHost:        &scheduler.PeerHost{},
 		peerTaskManager: mockPeerTaskManager,
@@ -156,7 +156,7 @@ func TestDownloadManager_ServePeer(t *testing.T) {
 			PieceMd5Sign:  "",
 		}, nil
 	})
-	m := &manager{
+	m := &server{
 		KeepAlive:      clientutil.NewKeepAlive("test"),
 		peerHost:       &scheduler.PeerHost{},
 		storageManager: mockStorageManger,
diff --git a/hack/build.sh b/hack/build.sh
index 4c1e81f582b..ff56684a380 100755
--- a/hack/build.sh
+++ b/hack/build.sh
@@ -10,7 +10,7 @@ SCHEDULER_BINARY_NAME=scheduler
 MANAGER_BINARY_NAME=manager
 
 PKG=d7y.io/dragonfly/v2
-BUILD_IMAGE=golang:1.15.8
+BUILD_IMAGE=golang:1.16.6-alpine
 
 VERSION=$(git rev-parse --short HEAD)
 BUILD_TIME=$(date -u '+%Y-%m-%dT%H:%M:%SZ')
@@ -78,6 +78,8 @@ build-docker() {
         -e CGO_ENABLED=0 \
         -e GO111MODULE=on \
         -e GOPROXY="${GOPROXY}" \
+        -e GOTAGS="${GOTAGS}" \
+        -e GOGCFLAGS="${GOGCFLAGS}" \
         -w /go/src/${PKG} \
         ${BUILD_IMAGE} \
         go build -o "/go/bin/$1" ./cmd/"$2"