Introduce --kube-image-mirror-country and kube-image-registry to karmadactl init

pkg/karmadactl/cmdinit/cmdinit.go

@@ -45,7 +45,9 @@ func NewCmdInit(cmdOut io.Writer, parentCommand string) *cobra.Command {
 		klog.Infof("No default release version found. build version: %s", version.Get().String())
 		releaseVer = &version.ReleaseVersion{} // initialize to avoid panic
 	}
-
+	// kube image registry
+	flags.StringVarP(&opts.KubeImageMirrorCountry, "kube-image-mirror-country", "", "", "Country code of the kube image registry to be used. For Chinese mainland users, set it to cn")
+	flags.StringVarP(&opts.KubeImageRegistry, "kube-image-registry", "", "", "Kube image registry. For Chinese mainland users, you may use local gcr.io mirrors such as registry.cn-hangzhou.aliyuncs.com/google_containers to override default kube image registry")
 	// cert
 	flags.StringVar(&opts.ExternalIP, "cert-external-ip", "", "the external IP of Karmada certificate (e.g 192.168.1.2,172.16.1.2)")
 	flags.StringVar(&opts.ExternalDNS, "cert-external-dns", "", "the external DNS of Karmada certificate (e.g localhost,localhost.com)")
@@ -57,7 +59,7 @@ func NewCmdInit(cmdOut io.Writer, parentCommand string) *cobra.Command {
 	// etcd
 	flags.StringVarP(&opts.EtcdStorageMode, "etcd-storage-mode", "", "emptyDir",
 		"etcd data storage mode(emptyDir,hostPath,PVC). value is PVC, specify --storage-classes-name")
-	flags.StringVarP(&opts.EtcdImage, "etcd-image", "", "k8s.gcr.io/etcd:3.5.1-0", "etcd image")
+	flags.StringVarP(&opts.EtcdImage, "etcd-image", "", "", "etcd image")
 	flags.StringVarP(&opts.EtcdInitImage, "etcd-init-image", "", "docker.io/alpine:3.15.1", "etcd init container image")
 	flags.Int32VarP(&opts.EtcdReplicas, "etcd-replicas", "", 1, "etcd replica set, cluster 3,5...singular")
 	flags.StringVarP(&opts.EtcdHostDataPath, "etcd-data", "", "/var/lib/karmada-etcd", "etcd data path,valid in hostPath mode.")
@@ -68,11 +70,11 @@ func NewCmdInit(cmdOut io.Writer, parentCommand string) *cobra.Command {
 	flags.StringVar(&opts.CRDs, "crds", crdURL, "Karmada crds resource.(local file e.g. --crds /root/crds.tar.gz)")
 	flags.Int32VarP(&opts.KarmadaAPIServerNodePort, "port", "p", 32443, "Karmada apiserver service node port")
 	flags.StringVarP(&opts.KarmadaDataPath, "karmada-data", "d", "/etc/karmada", "karmada data path. kubeconfig cert and crds files")
-	flags.StringVarP(&opts.KarmadaAPIServerImage, "karmada-apiserver-image", "", "k8s.gcr.io/kube-apiserver:v1.21.7", "Kubernetes apiserver image")
+	flags.StringVarP(&opts.KarmadaAPIServerImage, "karmada-apiserver-image", "", "", "Kubernetes apiserver image")
 	flags.Int32VarP(&opts.KarmadaAPIServerReplicas, "karmada-apiserver-replicas", "", 1, "karmada apiserver replica set")
 	flags.StringVarP(&opts.KarmadaSchedulerImage, "karmada-scheduler-image", "", fmt.Sprintf("swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-scheduler:%s", releaseVer.PatchRelease()), "karmada scheduler image")
 	flags.Int32VarP(&opts.KarmadaSchedulerReplicas, "karmada-scheduler-replicas", "", 1, "karmada scheduler replica set")
-	flags.StringVarP(&opts.KubeControllerManagerImage, "karmada-kube-controller-manager-image", "", "k8s.gcr.io/kube-controller-manager:v1.21.7", "Kubernetes controller manager image")
+	flags.StringVarP(&opts.KubeControllerManagerImage, "karmada-kube-controller-manager-image", "", "", "Kubernetes controller manager image")
 	flags.Int32VarP(&opts.KubeControllerManagerReplicas, "karmada-kube-controller-manager-replicas", "", 1, "karmada kube controller manager replica set")
 	flags.StringVarP(&opts.KarmadaControllerManagerImage, "karmada-controller-manager-image", "", fmt.Sprintf("swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-controller-manager:%s", releaseVer.PatchRelease()), "karmada controller manager  image")
 	flags.Int32VarP(&opts.KarmadaControllerManagerReplicas, "karmada-controller-manager-replicas", "", 1, "karmada controller manager replica set")
@@ -90,6 +92,12 @@ func initExample(parentCommand string) string {
 # The karmada-apiserver binds the master node's IP by default` + "\n" +
 		fmt.Sprintf("%s init", parentCommand) + `
 
+# China mainland registry mirror can be specified by using kube-image-mirror-country` + "\n" +
+		fmt.Sprintf("%s init --kube-image-mirror-country=cn", parentCommand) + `
+
+# Kube registry can be specified by using kube-image-registry` + "\n" +
+		fmt.Sprintf("%s init --kube-image-registry=registry.cn-hangzhou.aliyuncs.com/google_containers", parentCommand) + `
+
 # Specify the URL to download CRD tarball` + "\n" +
 		fmt.Sprintf("%s init --crds https://github.com/karmada-io/karmada/releases/download/v1.1.0/crds.tar.gz", parentCommand) + `
 

pkg/karmadactl/cmdinit/kubernetes/deploy.go

@@ -26,19 +26,32 @@ import (
 	"github.com/karmada-io/karmada/pkg/karmadactl/cmdinit/utils"
 )
 
-var certList = []string{
-	options.CaCertAndKeyName,
-	options.EtcdServerCertAndKeyName,
-	options.EtcdClientCertAndKeyName,
-	options.KarmadaCertAndKeyName,
-	options.FrontProxyCaCertAndKeyName,
-	options.FrontProxyClientCertAndKeyName,
-}
+var (
+	imageRepositories = map[string]string{
+		"global": "k8s.gcr.io",
+		"cn":     "registry.cn-hangzhou.aliyuncs.com/google_containers",
+	}
+
+	certList = []string{
+		options.CaCertAndKeyName,
+		options.EtcdServerCertAndKeyName,
+		options.EtcdClientCertAndKeyName,
+		options.KarmadaCertAndKeyName,
+		options.FrontProxyCaCertAndKeyName,
+		options.FrontProxyClientCertAndKeyName,
+	}
+
+	defaultKubeConfig = filepath.Join(homeDir(), ".kube", "config")
 
-var defaultKubeConfig = filepath.Join(homeDir(), ".kube", "config")
+	defaultEtcdImage                  = "etcd:3.5.1-0"
+	defaultKubeAPIServerImage         = "kube-apiserver:v1.21.7"
+	defaultKubeControllerManagerImage = "kube-controller-manager:v1.21.7"
+)
 
 // CommandInitOption holds all flags options for init.
 type CommandInitOption struct {
+	KubeImageRegistry                  string
+	KubeImageMirrorCountry             string
 	EtcdImage                          string
 	EtcdReplicas                       int32
 	EtcdInitImage                      string
@@ -448,6 +461,49 @@ func (i *CommandInitOption) RunInit(_ io.Writer, parentCommand string) error {
 	return nil
 }
 
+// get kube components registry
+func (i *CommandInitOption) kubeRegistry() string {
+	registry := i.KubeImageRegistry
+	mirrorCountry := strings.ToLower(i.KubeImageMirrorCountry)
+
+	if registry != "" {
+		return registry
+	}
+
+	if mirrorCountry != "" {
+		value, ok := imageRepositories[mirrorCountry]
+		if ok {
+			return value
+		}
+	}
+
+	return imageRepositories["global"]
+}
+
+// get kube-apiserver image
+func (i *CommandInitOption) kubeAPIServerImage() string {
+	if i.KarmadaAPIServerImage != "" {
+		return i.KarmadaAPIServerImage
+	}
+	return i.kubeRegistry() + "/" + defaultKubeAPIServerImage
+}
+
+// get kube-controller-manager image
+func (i *CommandInitOption) kubeControllerManagerImage() string {
+	if i.KubeControllerManagerImage != "" {
+		return i.KubeControllerManagerImage
+	}
+	return i.kubeRegistry() + "/" + defaultKubeControllerManagerImage
+}
+
+// get etcd image
+func (i *CommandInitOption) etcdImage() string {
+	if i.EtcdImage != "" {
+		return i.EtcdImage
+	}
+	return i.kubeRegistry() + "/" + defaultEtcdImage
+}
+
 func homeDir() string {
 	if h := os.Getenv("HOME"); h != "" {
 		return h

pkg/karmadactl/cmdinit/kubernetes/deployments.go

@@ -160,7 +160,7 @@ func (i *CommandInitOption) makeKarmadaAPIServerDeployment() *appsv1.Deployment
 		Containers: []corev1.Container{
 			{
 				Name:    karmadaAPIServerDeploymentAndServiceName,
-				Image:   i.KarmadaAPIServerImage,
+				Image:   i.kubeAPIServerImage(),
 				Command: i.karmadaAPIServerContainerCommand(),
 				Ports: []corev1.ContainerPort{
 					{
@@ -255,7 +255,7 @@ func (i *CommandInitOption) makeKarmadaKubeControllerManagerDeployment() *appsv1
 		Containers: []corev1.Container{
 			{
 				Name:  kubeControllerManagerClusterRoleAndDeploymentAndServiceName,
-				Image: i.KubeControllerManagerImage,
+				Image: i.kubeControllerManagerImage(),
 				Command: []string{
 					"kube-controller-manager",
 					"--allocate-node-cidrs=true",

pkg/karmadactl/cmdinit/kubernetes/statefulset.go

@@ -234,7 +234,7 @@ func (i *CommandInitOption) makeETCDStatefulSet() *appsv1.StatefulSet {
 		Containers: []corev1.Container{
 			{
 				Name:  etcdStatefulSetAndServiceName,
-				Image: i.EtcdImage,
+				Image: i.etcdImage(),
 				Command: []string{
 					"/usr/local/bin/etcd",
 					fmt.Sprintf("--config-file=%s/%s", etcdContainerConfigDataMountPath, etcdConfigName),