feat: add cpu-reaper-operator source code

cmd/main.go

@@ -0,0 +1,86 @@
+package main
+
+import (
+	"crypto/tls"
+	"flag"
+	"os"
+
+	_ "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"
+
+	metricsv1beta1 "k8s.io/metrics/pkg/apis/metrics/v1beta1"
+
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/healthz"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
+
+	reaperv1alpha1 "github.com/jominjun94/k8s-cpu-limit-check-operator/api/v1alpha1"
+	"github.com/jominjun94/k8s-cpu-limit-check-operator/internal/controller"
+)
+
+var (
+	scheme   = runtime.NewScheme()
+	setupLog = ctrl.Log.WithName("setup")
+)
+
+func init() {
+	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
+	utilruntime.Must(metricsv1beta1.AddToScheme(scheme)) // ⭐ 핵심
+	utilruntime.Must(reaperv1alpha1.AddToScheme(scheme))
+}
+
+func main() {
+	var metricsAddr string
+	var probeAddr string
+
+	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "Metrics address")
+	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "Probe address")
+
+	opts := zap.Options{Development: true}
+	opts.BindFlags(flag.CommandLine)
+	flag.Parse()
+
+	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
+
+	disableHTTP2 := func(c *tls.Config) {
+		c.NextProtos = []string{"http/1.1"}
+	}
+
+	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
+		Scheme: scheme,
+		Metrics: metricsserver.Options{
+			BindAddress: metricsAddr,
+			TLSOpts:     []func(*tls.Config){disableHTTP2},
+		},
+		WebhookServer:          webhook.NewServer(webhook.Options{TLSOpts: []func(*tls.Config){disableHTTP2}}),
+		HealthProbeBindAddress: probeAddr,
+		LeaderElection:         false,
+		LeaderElectionID:       "cpu-reaper.lock",
+	})
+	if err != nil {
+		setupLog.Error(err, "unable to start manager")
+		os.Exit(1)
+	}
+
+	if err := (&controller.CpuReaperPolicyReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller")
+		os.Exit(1)
+	}
+
+	mgr.AddHealthzCheck("healthz", healthz.Ping)
+	mgr.AddReadyzCheck("readyz", healthz.Ping)
+
+	setupLog.Info("starting manager")
+	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
+		setupLog.Error(err, "manager exited")
+		os.Exit(1)
+	}
+}