Add leader election namespace configuration for apinetlet (#292)

cmd/apinetlet/main.go

@@ -18,20 +18,19 @@ import (
 	networkingv1alpha1 "github.com/ironcore-dev/ironcore/api/networking/v1alpha1"
 	"github.com/ironcore-dev/ironcore/utils/client/config"
 	flag "github.com/spf13/pflag"
-	"sigs.k8s.io/controller-runtime/pkg/cache"
-	"sigs.k8s.io/controller-runtime/pkg/cluster"
-	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
 
 	// Import all Kubernetes client auth plugins (e.g. Azure, GCP, OIDC, etc.)
 	// to ensure that exec-entrypoint and run can make use of them.
-	_ "k8s.io/client-go/plugin/pkg/client/auth"
-
 	"k8s.io/apimachinery/pkg/runtime"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
+	_ "k8s.io/client-go/plugin/pkg/client/auth"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/cache"
+	"sigs.k8s.io/controller-runtime/pkg/cluster"
 	"sigs.k8s.io/controller-runtime/pkg/healthz"
 	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
 	//+kubebuilder:scaffold:imports
 )
 
@@ -128,6 +127,7 @@ func main() {
 		},
 		HealthProbeBindAddress: probeAddr,
 		LeaderElection:         enableLeaderElection,
+		LeaderElectionConfig:   apiNetCfg,
 		LeaderElectionID:       "fa89daf5.apinetlet.apinet.ironcore.dev",
 		Cache: cache.Options{
 			DefaultNamespaces: cacheDefaultNamespaces,