✨ feat: add Go Kubernetes operator

2026-09-13 18:59:25 +00:00 · 2026-08-13 02:19:14 +07:00
parent 31a2b8ef28
commit da6eafcae6
30 changed files with 3066 additions and 0 deletions
@@ -0,0 +1,95 @@
+package main
+
+import (
+	"flag"
+	"os"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	clientgoscheme "k8s.io/client-go/kubernetes/scheme"
+	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/cache"
+	"sigs.k8s.io/controller-runtime/pkg/healthz"
+	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
+
+	v1alpha1 "github.com/YuzuZensai/Minikura/operator/api/v1alpha1"
+	"github.com/YuzuZensai/Minikura/operator/internal/controller"
+)
+
+var (
+	scheme   = runtime.NewScheme()
+	setupLog = ctrl.Log.WithName("setup")
+)
+
+func init() {
+	utilruntime.Must(clientgoscheme.AddToScheme(scheme))
+	utilruntime.Must(v1alpha1.AddToScheme(scheme))
+}
+
+func main() {
+	var metricsAddr, probeAddr string
+	var enableLeaderElection bool
+
+	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "Address the metric endpoint binds to.")
+	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "Address the probe endpoint binds to.")
+	flag.BoolVar(&enableLeaderElection, "leader-elect", false,
+		"Enable leader election, ensuring only one active operator when running multiple replicas.")
+
+	opts := zap.Options{Development: os.Getenv("NODE_ENV") != "production"}
+	opts.BindFlags(flag.CommandLine)
+	flag.Parse()
+
+	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
+
+	namespace := os.Getenv("KUBERNETES_NAMESPACE")
+	if namespace == "" {
+		namespace = "minikura"
+	}
+
+	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
+		Scheme:                 scheme,
+		Metrics:                metricsserver.Options{BindAddress: metricsAddr},
+		HealthProbeBindAddress: probeAddr,
+		LeaderElection:         enableLeaderElection,
+		LeaderElectionID:       "minikura-operator.minikura.kirameki.cafe",
+		Cache: cache.Options{
+			DefaultNamespaces: map[string]cache.Config{namespace: {}},
+		},
+	})
+	if err != nil {
+		setupLog.Error(err, "unable to start manager")
+		os.Exit(1)
+	}
+
+	if err := (&controller.MinecraftServerReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "MinecraftServer")
+		os.Exit(1)
+	}
+
+	if err := (&controller.ReverseProxyServerReconciler{
+		Client: mgr.GetClient(),
+		Scheme: mgr.GetScheme(),
+	}).SetupWithManager(mgr); err != nil {
+		setupLog.Error(err, "unable to create controller", "controller", "ReverseProxyServer")
+		os.Exit(1)
+	}
+
+	if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
+		setupLog.Error(err, "unable to set up health check")
+		os.Exit(1)
+	}
+	if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
+		setupLog.Error(err, "unable to set up ready check")
+		os.Exit(1)
+	}
+
+	setupLog.Info("starting Minikura operator", "namespace", namespace)
+	if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
+		setupLog.Error(err, "problem running manager")
+		os.Exit(1)
+	}
+}