Only genrate ETCD PKI for local ETCD setup

Signed-off-by: Joe Nathan Abellard <contact@jabellard.com>

operator/pkg/certs/certs.go

@@ -85,8 +85,8 @@ func (config *CertConfig) defaultNotAfter() {
 }
 
 // GetDefaultCertList returns all of karmada certConfigs, it include karmada, front and etcd.
-func GetDefaultCertList() []*CertConfig {
-	return []*CertConfig{
+func GetDefaultCertList(karmada *operatorv1alpha1.Karmada) []*CertConfig {
+	certConfigs := []*CertConfig{
 		// karmada cert config.
 		KarmadaCertRootCA(),
 		KarmadaCertAdmin(),
@@ -94,11 +94,11 @@ func GetDefaultCertList() []*CertConfig {
 		// front proxy cert config.
 		KarmadaCertFrontProxyCA(),
 		KarmadaCertFrontProxyClient(),
-		// ETCD cert config.
-		KarmadaCertEtcdCA(),
-		KarmadaCertEtcdServer(),
-		KarmadaCertEtcdClient(),
 	}
+	if karmada.Spec.Components.Etcd.Local != nil {
+		certConfigs = append(certConfigs, KarmadaCertEtcdCA(), KarmadaCertEtcdServer(), KarmadaCertEtcdClient())
+	}
+	return certConfigs
 }
 
 // KarmadaCertRootCA returns karmada ca cert config.

operator/pkg/init.go

@@ -99,9 +99,9 @@ func NewInitJob(opt *InitOptions) *workflow.Job {
 
 	// add the all tasks to the init job workflow.
 	initJob.AppendTask(tasks.NewPrepareCrdsTask())
-	initJob.AppendTask(tasks.NewCertTask())
+	initJob.AppendTask(tasks.NewCertTask(opt.Karmada))
 	initJob.AppendTask(tasks.NewNamespaceTask())
-	initJob.AppendTask(tasks.NewUploadCertsTask())
+	initJob.AppendTask(tasks.NewUploadCertsTask(opt.Karmada))
 
 	etcdConfig := opt.Karmada.Spec.Components.Etcd
 	// Only required if local etcd is configured

operator/pkg/tasks/init/cert.go

@@ -33,13 +33,13 @@ import (
 )
 
 // NewCertTask init a Certs task to generate all of karmada certs
-func NewCertTask() workflow.Task {
+func NewCertTask(karmada *operatorv1alpha1.Karmada) workflow.Task {
 	return workflow.Task{
 		Name:        "Certs",
 		Run:         runCerts,
 		Skip:        skipCerts,
 		RunSubTasks: true,
-		Tasks:       newCertSubTasks(),
+		Tasks:       newCertSubTasks(karmada),
 	}
 }
 
@@ -74,11 +74,11 @@ func skipCerts(d workflow.RunData) (bool, error) {
 	return true, nil
 }
 
-func newCertSubTasks() []workflow.Task {
+func newCertSubTasks(karmada *operatorv1alpha1.Karmada) []workflow.Task {
 	var subTasks []workflow.Task
 	caCert := map[string]*certs.CertConfig{}
 
-	for _, cert := range certs.GetDefaultCertList() {
+	for _, cert := range certs.GetDefaultCertList(karmada) {
 		var task workflow.Task
 
 		if cert.CAName == "" {

operator/pkg/tasks/init/cert_test.go

@@ -28,6 +28,7 @@ import (
 	fakeclientset "k8s.io/client-go/kubernetes/fake"
 
 	"github.com/karmada-io/karmada/operator/pkg/apis/operator/v1alpha1"
+	operatorv1alpha1 "github.com/karmada-io/karmada/operator/pkg/apis/operator/v1alpha1"
 	"github.com/karmada-io/karmada/operator/pkg/certs"
 	"github.com/karmada-io/karmada/operator/pkg/constants"
 	"github.com/karmada-io/karmada/operator/pkg/util"
@@ -35,6 +36,18 @@ import (
 )
 
 func TestNewCertTask(t *testing.T) {
+	karmada := &operatorv1alpha1.Karmada{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "karmada",
+		},
+		Spec: operatorv1alpha1.KarmadaSpec{
+			Components: &operatorv1alpha1.KarmadaComponents{
+				Etcd: &operatorv1alpha1.Etcd{
+					Local: &operatorv1alpha1.LocalEtcd{},
+				},
+			},
+		},
+	}
 	tests := []struct {
 		name     string
 		wantTask workflow.Task
@@ -46,14 +59,14 @@ func TestNewCertTask(t *testing.T) {
 				Run:         runCerts,
 				Skip:        skipCerts,
 				RunSubTasks: true,
-				Tasks:       newCertSubTasks(),
+				Tasks:       newCertSubTasks(karmada),
 			},
 		},
 	}
 
 	for _, test := range tests {
 		t.Run(test.name, func(t *testing.T) {
-			certTask := NewCertTask()
+			certTask := NewCertTask(karmada)
 			err := util.DeepEqualTasks(certTask, test.wantTask)
 			if err != nil {
 				t.Errorf("unexpected error, got %v", err)

operator/pkg/tasks/init/upload.go

@@ -26,6 +26,7 @@ import (
 	clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
 	"k8s.io/klog/v2"
 
+	operatorv1alpha1 "github.com/karmada-io/karmada/operator/pkg/apis/operator/v1alpha1"
 	"github.com/karmada-io/karmada/operator/pkg/certs"
 	"github.com/karmada-io/karmada/operator/pkg/constants"
 	"github.com/karmada-io/karmada/operator/pkg/util"
@@ -179,25 +180,29 @@ func buildKubeConfigFromSpec(data InitData, serverURL string) (*clientcmdapi.Con
 }
 
 // NewUploadCertsTask init a Upload-Certs task
-func NewUploadCertsTask() workflow.Task {
+func NewUploadCertsTask(karmada *operatorv1alpha1.Karmada) workflow.Task {
+	tasks := []workflow.Task{
+		{
+			Name: "Upload-KarmadaCert",
+			Run:  runUploadKarmadaCert,
+		},
+		{
+			Name: "Upload-WebHookCert",
+			Run:  runUploadWebHookCert,
+		},
+	}
+	if karmada.Spec.Components.Etcd.Local != nil {
+		uploadEtcdTask := workflow.Task{
+			Name: "Upload-EtcdCert",
+			Run:  runUploadEtcdCert,
+		}
+		tasks = append(tasks, uploadEtcdTask)
+	}
 	return workflow.Task{
 		Name:        "Upload-Certs",
 		Run:         runUploadCerts,
 		RunSubTasks: true,
-		Tasks: []workflow.Task{
-			{
-				Name: "Upload-KarmadaCert",
-				Run:  runUploadKarmadaCert,
-			},
-			{
-				Name: "Upload-EtcdCert",
-				Run:  runUploadEtcdCert,
-			},
-			{
-				Name: "Upload-WebHookCert",
-				Run:  runUploadWebHookCert,
-			},
-		},
+		Tasks:       tasks,
 	}
 }