Add go report and fix part of reported errors

README.md

@@ -1,6 +1,7 @@
 # OpenYurt 
 
 [![License](https://img.shields.io/badge/license-Apache%202-4EB1BA.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
+[![Go Report Card](https://goreportcard.com/badge/github.com/alibaba/openyurt)](https://goreportcard.com/report/github.com/alibaba/openyurt)
 
 |![notification](img/bell-outline-badge.svg) What is NEW!|
 |------------------|
@@ -11,10 +12,10 @@ In a nutshell, OpenYurt enables users to manage applications that run in the edg
 in the cloud infrastructure. 
 
 OpenYurt is suitable for common edge computing use cases whose requirements include:
-- minimizing the network traffic over long distances between the devices and the workloads.
-- overcoming the network bandwidth or reliability limitations.
-- processing data remotely to reduce latency.
-- providing a better security model to handle sensitive data. 
+- Minimizing the network traffic over long distances between the devices and the workloads.
+- Overcoming the network bandwidth or reliability limitations.
+- Processing data remotely to reduce latency.
+- Providing a better security model to handle sensitive data.
 
 OpenYurt has the following advantages in terms of compatibility and usability.
 - **Kubernetes native**. It provides full Kubernetes API compatibility. All Kubernetes workloads, services, 

cmd/yurt-controller-manager/app/options/options.go

@@ -46,7 +46,7 @@ const (
 	YurtControllerManagerUserAgent = "yurt-controller-manager"
 )
 
-// KubeControllerManagerOptions is the main context object for the kube-controller manager.
+// YurtControllerManagerOptions is the main context object for the kube-controller manager.
 type YurtControllerManagerOptions struct {
 	Generic                 *GenericControllerManagerConfigurationOptions
 	NodeLifecycleController *NodeLifecycleControllerOptions

cmd/yurthub/app/options/options.go

@@ -3,8 +3,8 @@ package options
 import (
 	"fmt"
 
-	"github.com/spf13/pflag"
 	"github.com/alibaba/openyurt/pkg/yurthub/util"
+	"github.com/spf13/pflag"
 )
 
 type YurtHubOptions struct {
@@ -43,7 +43,7 @@ func ValidateOptions(options *YurtHubOptions) error {
 	}
 
 	if len(options.ServerAddr) == 0 {
-		return fmt.Errorf("server-address is emtpy")
+		return fmt.Errorf("server-address is empty")
 	}
 
 	if !util.IsSupportedLBMode(options.LBMode) {

pkg/yurthub/cachemanager/cache_agent_test.go

@@ -96,9 +96,8 @@ func compareAgents(gotAgents []string, expectedAgents []string) bool {
 		return false
 	}
 
-	notFound := true
 	for _, agent := range gotAgents {
-		notFound = true
+		notFound := true
 		for i := range expectedAgents {
 			if expectedAgents[i] == agent {
 				notFound = false

pkg/yurthub/storage/disk/storage_test.go

@@ -277,9 +277,8 @@ func TestListKeys(t *testing.T) {
 		t.Errorf("expect %d keys, but got %d keys", len(tempKeys), len(keys))
 	}
 
-	found := false
 	for _, key := range tempKeys {
-		found = false
+		found := false
 		for _, cachedKey := range keys {
 			if key == cachedKey {
 				found = true
@@ -369,9 +368,8 @@ func TestList(t *testing.T) {
 		t.Errorf("expect %d number of contents, but got %d number of contents", len(tempContents), len(contents))
 	}
 
-	found := false
 	for _, content := range tempContents {
-		found = false
+		found := false
 		for _, cachedContent := range contents {
 			if content == string(cachedContent) {
 				found = true