Provisioning: Add scaffolding for repo controller (#110543)

pkg/operators/provisioning/repo_operator.go

@@ -0,0 +1,65 @@
+package provisioning
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/grafana/grafana-app-sdk/logging"
+	"github.com/urfave/cli/v2"
+	"k8s.io/client-go/tools/cache"
+
+	"github.com/grafana/grafana/apps/provisioning/pkg/controller"
+	"github.com/grafana/grafana/pkg/services/apiserver/standalone"
+	"github.com/grafana/grafana/pkg/setting"
+
+	informer "github.com/grafana/grafana/apps/provisioning/pkg/generated/informers/externalversions"
+)
+
+func RunRepoController(opts standalone.BuildInfo, c *cli.Context, cfg *setting.Cfg) error {
+	logger := logging.NewSLogLogger(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		Level: slog.LevelDebug,
+	})).With("logger", "provisioning-repo-controller")
+	logger.Info("Starting provisioning repo controller")
+
+	controllerCfg, err := setupFromConfig(cfg)
+	if err != nil {
+		return fmt.Errorf("failed to setup operator: %w", err)
+	}
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+	go func() {
+		<-sigChan
+		fmt.Println("Received shutdown signal, stopping controllers")
+		cancel()
+	}()
+
+	informerFactory := informer.NewSharedInformerFactoryWithOptions(
+		controllerCfg.provisioningClient,
+		controllerCfg.resyncInterval,
+	)
+
+	repoInformer := informerFactory.Provisioning().V0alpha1().Repositories()
+	controller, err := controller.NewRepositoryController(
+		controllerCfg.provisioningClient.ProvisioningV0alpha1(),
+		repoInformer,
+	)
+	if err != nil {
+		return fmt.Errorf("failed to create repository controller: %w", err)
+	}
+
+	informerFactory.Start(ctx.Done())
+	if !cache.WaitForCacheSync(ctx.Done(), repoInformer.Informer().HasSynced) {
+		return fmt.Errorf("failed to sync informer cache")
+	}
+
+	controller.Run(ctx)
+	return nil
+}