diff --git a/.gitignore b/.gitignore
index 24b24b618b2..a92e38f7306 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,5 @@ dist
 .vscode
 test/Note.md
 .ossutil_checkpoint
+bin
+.run
diff --git a/.golangci.yml b/.golangci.yml
index ed78a75446c..97741b0beb5 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -16,7 +16,7 @@ linters:
   enable:
     - gofmt
     - goimports
-    - golint
+    - revive
     - stylecheck
     - goconst
     - gosimple
diff --git a/cmd/cloud.go b/cmd/cloud.go
index ea93ca22949..f31ca23aa8b 100644
--- a/cmd/cloud.go
+++ b/cmd/cloud.go
@@ -18,6 +18,8 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/fanux/sealos/pkg/logger"
+
 	"github.com/fanux/sealgate/cloud"
 	"github.com/spf13/cobra"
 
@@ -32,6 +34,7 @@ var cloudCmd = &cobra.Command{
 	Short: "sealos on cloud",
 	Long:  `sealos will create vms vpc switch security group on cloud and install kubernetes on it`,
 	Run: func(cmd *cobra.Command, args []string) {
+		logger.Fatal("the cloud feature not support")
 		fmt.Println("install kubernetes on cloud...")
 		var key, sec string
 		if key = os.Getenv("ACCESS_KEY_ID"); key != "" {
diff --git a/cmd/delete.go b/cmd/delete.go
index 6d25d9461af..bb5f6ee7c01 100644
--- a/cmd/delete.go
+++ b/cmd/delete.go
@@ -17,6 +17,8 @@ package cmd
 import (
 	"os"
 
+	"github.com/fanux/sealos/pkg/logger"
+
 	"github.com/spf13/cobra"
 
 	"github.com/fanux/sealos/install"
@@ -48,6 +50,7 @@ var deleteCmd = &cobra.Command{
 		_ = appmanager.DeleteApp(cfg, cfgFile)
 	},
 	PreRun: func(cmd *cobra.Command, args []string) {
+		logger.Fatal("the delete app feature not support")
 		if install.ExitDeleteCase(AppURL) {
 			_ = cmd.Help()
 			os.Exit(install.ErrorExitOSCase)
diff --git a/cmd/install.go b/cmd/install.go
index eced7d6d0cf..b654677d194 100644
--- a/cmd/install.go
+++ b/cmd/install.go
@@ -17,6 +17,8 @@ package cmd
 import (
 	"os"
 
+	"github.com/fanux/sealos/pkg/logger"
+
 	"github.com/spf13/cobra"
 
 	"github.com/fanux/sealos/cert"
@@ -26,7 +28,7 @@ import (
 
 var (
 	AppURL         string
-	installExample string = `
+	installExample = `
 	# when usr -f flag , you need add  something to  config file. 
 	# Apply the configuration in values.yaml to a kubernetes Cluster.
 	sealos install --pkg-url /root/dashboard.tar -f values.yaml
@@ -51,6 +53,7 @@ var installCmd = &cobra.Command{
 		_ = appmanager.InstallApp(cfg, cfgFile)
 	},
 	PreRun: func(cmd *cobra.Command, args []string) {
+		logger.Fatal("the install app feature not support")
 		if install.ExitInstallCase(AppURL) {
 			_ = cmd.Help()
 			os.Exit(install.ErrorExitOSCase)
diff --git a/cmd/version.go b/cmd/version.go
index 5f479d52d20..da7f0dbd1d6 100644
--- a/cmd/version.go
+++ b/cmd/version.go
@@ -27,9 +27,7 @@ func init() {
 	// see also https://github.com/LinuxSuRen/cobra-extension/issues/6
 	const name = "sealos"
 	verCmd := extver.NewVersionCmd("fanux", name, name, func(ver string) string {
-		if strings.HasPrefix(ver, "v") {
-			ver = strings.TrimPrefix(ver, "v")
-		}
+		ver = strings.TrimPrefix(ver, "v")
 		return fmt.Sprintf("https://github.com/fanux/sealos/releases/download/v%s/%s_%s_%s_%s.tar.gz",
 			ver, name, ver, runtime.GOOS, runtime.GOARCH)
 	})
diff --git a/docs/v3.0-playbook.md b/docs/v2.0.md
similarity index 100%
rename from docs/v3.0-playbook.md
rename to docs/v2.0.md
diff --git a/install/cloud.go b/install/cloud.go
index 89cdda8c7d1..b22eb6474b0 100644
--- a/install/cloud.go
+++ b/install/cloud.go
@@ -155,9 +155,7 @@ func getLocalURL(version string) string {
 func newCommand(c *Cluster) string {
 	//TODO should download it on master0 and copy to other nodes
 	version := extver.GetVersion()
-	if strings.HasPrefix(version, "v") {
-		version = strings.TrimPrefix(version, "v")
-	}
+	version = strings.TrimPrefix(version, "v")
 	releaseURL := fmt.Sprintf("https://github.com/fanux/sealos/releases/download/v%s/sealos_%s_linux_amd64.tar.gz",
 		version, version)
 	cmd := fmt.Sprintf("wget %s -O -| tar -xz && chmod +x sealos", releaseURL)
diff --git a/install/utils.go b/install/utils.go
index 576065d50d9..ed2f91a32fd 100644
--- a/install/utils.go
+++ b/install/utils.go
@@ -173,7 +173,7 @@ func IPFormat(host string) string {
 
 // RandString 生成随机字符串
 func RandString(len int) string {
-	var r *rand.Rand = rand.New(rand.NewSource(time.Now().Unix()))
+	var r = rand.New(rand.NewSource(time.Now().Unix()))
 	bytes := make([]byte, len)
 	for i := 0; i < len; i++ {
 		b := r.Intn(26) + 65
diff --git a/pkg/logger/log.go b/pkg/logger/log.go
index a64d1e3c4a5..bd92e9c09af 100755
--- a/pkg/logger/log.go
+++ b/pkg/logger/log.go
@@ -153,7 +153,7 @@ func (r *LocalLogger) SetLogger(adapterName string, configs ...string) error {
 	}
 
 	config := append(configs, "{}")[0]
-	var num int = -1
+	var num = -1
 	var i int
 	var l *nameLogger
 	for i, l = range r.outputs {