diff --git a/kernel/api/lute.go b/kernel/api/lute.go
index 08d81d1d5..e1b6baff8 100644
--- a/kernel/api/lute.go
+++ b/kernel/api/lute.go
@@ -82,7 +82,7 @@ func html2BlockDOM(c *gin.Context) {
 		n.Unlink()
 	}
 
-	if "std" == model.Conf.System.Container {
+	if util.ContainerStd == model.Conf.System.Container {
 		// 处理本地资源文件复制
 		ast.Walk(tree.Root, func(n *ast.Node, entering bool) ast.WalkStatus {
 			if !entering || ast.NodeLinkDest != n.Type {
diff --git a/kernel/model/assets_watcher.go b/kernel/model/assets_watcher.go
index b6666da43..5413e3517 100644
--- a/kernel/model/assets_watcher.go
+++ b/kernel/model/assets_watcher.go
@@ -31,7 +31,7 @@ import (
 var assetsWatcher *fsnotify.Watcher
 
 func WatchAssets() {
-	if "android" == util.Container || "ios" == util.Container {
+	if util.ContainerAndroid == util.Container || util.ContainerIOS == util.Container {
 		return
 	}
 
diff --git a/kernel/server/serve.go b/kernel/server/serve.go
index 993780bf4..be4ab1711 100644
--- a/kernel/server/serve.go
+++ b/kernel/server/serve.go
@@ -70,7 +70,7 @@ func Serve(fastMode bool) {
 	api.ServeAPI(ginServer)
 
 	var addr string
-	if model.Conf.System.NetworkServe || "docker" == util.Container {
+	if model.Conf.System.NetworkServe || util.ContainerDocker == util.Container {
 		addr = "0.0.0.0:" + util.ServerPort
 	} else {
 		addr = "127.0.0.1:" + util.ServerPort
@@ -227,7 +227,7 @@ func serveDebug(ginServer *gin.Engine) {
 
 func serveWebSocket(ginServer *gin.Engine) {
 	util.WebSocketServer.Config.MaxMessageSize = 1024 * 1024 * 8
-	if "docker" == util.Container { // Docker 容器运行时启用 WebSocket 传输压缩
+	if util.ContainerDocker == util.Container { // Docker 容器运行时启用 WebSocket 传输压缩
 		util.WebSocketServer.Config.EnableCompression = true
 		util.WebSocketServer.Config.CompressionLevel = 4
 	}
diff --git a/kernel/sql/block_query.go b/kernel/sql/block_query.go
index 84fd3b829..50de73a61 100644
--- a/kernel/sql/block_query.go
+++ b/kernel/sql/block_query.go
@@ -125,7 +125,7 @@ func queryBlockIDByParentID(parentID string) (ret []string) {
 
 func QueryRecentUpdatedBlocks() (ret []*Block) {
 	sqlStmt := "SELECT * FROM blocks WHERE type = 'p' AND length > 1 ORDER BY updated DESC LIMIT 16"
-	if "ios" == util.Container || "android" == util.Container {
+	if util.ContainerIOS == util.Container || util.ContainerAndroid == util.Container {
 		sqlStmt = "SELECT * FROM blocks WHERE type = 'd' ORDER BY updated DESC LIMIT 16"
 	}
 	rows, err := query(sqlStmt)
diff --git a/kernel/util/path.go b/kernel/util/path.go
index 05b72b07f..b065c8890 100644
--- a/kernel/util/path.go
+++ b/kernel/util/path.go
@@ -87,7 +87,7 @@ func IsIDPattern(str string) bool {
 var LocalIPs []string
 
 func GetLocalIPs() (ret []string) {
-	if "android" == Container {
+	if ContainerAndroid == Container {
 		// Android 上用不了 net.InterfaceAddrs() https://github.com/golang/go/issues/40569，所以前面使用启动内核传入的参数 localIPs
 		LocalIPs = append(LocalIPs, "127.0.0.1")
 		LocalIPs = gulu.Str.RemoveDuplicatedElem(LocalIPs)
diff --git a/kernel/util/runtime.go b/kernel/util/runtime.go
index 2b71bccfd..ceedb265c 100644
--- a/kernel/util/runtime.go
+++ b/kernel/util/runtime.go
@@ -67,7 +67,7 @@ func RandomSleep(minMills, maxMills int) {
 }
 
 func GetDeviceID() string {
-	if "std" == Container {
+	if ContainerStd == Container {
 		machineID, err := machineid.ID()
 		if nil != err {
 			return gulu.Rand.String(12)
diff --git a/kernel/util/working.go b/kernel/util/working.go
index c6260029a..825dc1a05 100644
--- a/kernel/util/working.go
+++ b/kernel/util/working.go
@@ -77,9 +77,9 @@ func Boot() {
 	Resident = *resident
 	ReadOnly = *readOnly
 	AccessAuthCode = *accessAuthCode
-	Container = "std"
+	Container = ContainerStd
 	if isRunningInDockerContainer() {
-		Container = "docker"
+		Container = ContainerDocker
 	}
 
 	UserAgent = UserAgent + " " + Container
@@ -177,7 +177,7 @@ func initWorkspaceDir(workspaceArg string) {
 	userHomeConfDir := filepath.Join(HomeDir, ".config", "siyuan")
 	workspaceConf := filepath.Join(userHomeConfDir, "workspace.json")
 	if !gulu.File.IsExist(workspaceConf) {
-		IsNewbie = "std" == Container // 只有桌面端需要设置新手标识，前端自动挂载帮助文档
+		IsNewbie = ContainerStd == Container // 只有桌面端需要设置新手标识，前端自动挂载帮助文档
 		if err := os.MkdirAll(userHomeConfDir, 0755); nil != err && !os.IsExist(err) {
 			log.Printf("create user home conf folder [%s] failed: %s", userHomeConfDir, err)
 			os.Exit(ExitCodeCreateConfDirErr)
@@ -276,6 +276,13 @@ var (
 	Container string // docker, android, ios, std
 )
 
+const (
+	ContainerStd     = "std"     // 桌面端
+	ContainerDocker  = "docker"  // Docker 容器端
+	ContainerAndroid = "android" // Android 端
+	ContainerIOS     = "ios"     // iOS 端
+)
+
 func initPathDir() {
 	if err := os.MkdirAll(ConfDir, 0755); nil != err && !os.IsExist(err) {
 		log.Fatalf("create conf folder [%s] failed: %s", ConfDir, err)