fix: fixup multi problem

control-plane/api/internal/k8s/client.go

@@ -8,19 +8,18 @@ import (
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/clientcmd"
+	metricsclient "k8s.io/metrics/pkg/client/clientset/versioned"
 )
 
-func NewClient(cfg *config.Config) (*kubernetes.Clientset, error) {
-	var (
-		k8sCfg *rest.Config
-		err    error
-	)
-
+func restConfig(cfg *config.Config) (*rest.Config, error) {
 	if cfg.Kubeconfig != "" {
-		k8sCfg, err = clientcmd.BuildConfigFromFlags("", cfg.Kubeconfig)
-	} else {
-		k8sCfg, err = rest.InClusterConfig()
+		return clientcmd.BuildConfigFromFlags("", cfg.Kubeconfig)
 	}
+	return rest.InClusterConfig()
+}
+
+func NewClient(cfg *config.Config) (*kubernetes.Clientset, error) {
+	k8sCfg, err := restConfig(cfg)
 	if err != nil {
 		return nil, fmt.Errorf("k8s config: %w", err)
 	}
@@ -32,3 +31,19 @@ func NewClient(cfg *config.Config) (*kubernetes.Clientset, error) {
 
 	return client, nil
 }
+
+// NewMetricsClient crée un client pour l'API metrics.k8s.io (metrics-server),
+// utilisée pour lire l'usage CPU/mémoire en direct des pods.
+func NewMetricsClient(cfg *config.Config) (*metricsclient.Clientset, error) {
+	k8sCfg, err := restConfig(cfg)
+	if err != nil {
+		return nil, fmt.Errorf("k8s config: %w", err)
+	}
+
+	client, err := metricsclient.NewForConfig(k8sCfg)
+	if err != nil {
+		return nil, fmt.Errorf("metrics clientset: %w", err)
+	}
+
+	return client, nil
+}