rebase: update sigs.k8s.io/controller-runtime to current version

There is no release for sigs.k8s.io/controller-runtime that supports
Kubernetes v1.27. The main branch has all the required modifications, so
we can use that for the time being.

Signed-off-by: Niels de Vos <ndevos@ibm.com>

vendor/sigs.k8s.io/controller-runtime/pkg/internal/source/kind.go

@@ -0,0 +1,117 @@
+package internal
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"k8s.io/apimachinery/pkg/api/meta"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/wait"
+	"k8s.io/client-go/util/workqueue"
+	"sigs.k8s.io/controller-runtime/pkg/cache"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/handler"
+	"sigs.k8s.io/controller-runtime/pkg/predicate"
+)
+
+// Kind is used to provide a source of events originating inside the cluster from Watches (e.g. Pod Create).
+type Kind struct {
+	// Type is the type of object to watch.  e.g. &v1.Pod{}
+	Type client.Object
+
+	// Cache used to watch APIs
+	Cache cache.Cache
+
+	// started may contain an error if one was encountered during startup. If its closed and does not
+	// contain an error, startup and syncing finished.
+	started     chan error
+	startCancel func()
+}
+
+// Start is internal and should be called only by the Controller to register an EventHandler with the Informer
+// to enqueue reconcile.Requests.
+func (ks *Kind) Start(ctx context.Context, handler handler.EventHandler, queue workqueue.RateLimitingInterface,
+	prct ...predicate.Predicate) error {
+	if ks.Type == nil {
+		return fmt.Errorf("must create Kind with a non-nil object")
+	}
+	if ks.Cache == nil {
+		return fmt.Errorf("must create Kind with a non-nil cache")
+	}
+
+	// cache.GetInformer will block until its context is cancelled if the cache was already started and it can not
+	// sync that informer (most commonly due to RBAC issues).
+	ctx, ks.startCancel = context.WithCancel(ctx)
+	ks.started = make(chan error)
+	go func() {
+		var (
+			i       cache.Informer
+			lastErr error
+		)
+
+		// Tries to get an informer until it returns true,
+		// an error or the specified context is cancelled or expired.
+		if err := wait.PollUntilContextCancel(ctx, 10*time.Second, true, func(ctx context.Context) (bool, error) {
+			// Lookup the Informer from the Cache and add an EventHandler which populates the Queue
+			i, lastErr = ks.Cache.GetInformer(ctx, ks.Type)
+			if lastErr != nil {
+				kindMatchErr := &meta.NoKindMatchError{}
+				switch {
+				case errors.As(lastErr, &kindMatchErr):
+					log.Error(lastErr, "if kind is a CRD, it should be installed before calling Start",
+						"kind", kindMatchErr.GroupKind)
+				case runtime.IsNotRegisteredError(lastErr):
+					log.Error(lastErr, "kind must be registered to the Scheme")
+				default:
+					log.Error(lastErr, "failed to get informer from cache")
+				}
+				return false, nil // Retry.
+			}
+			return true, nil
+		}); err != nil {
+			if lastErr != nil {
+				ks.started <- fmt.Errorf("failed to get informer from cache: %w", lastErr)
+				return
+			}
+			ks.started <- err
+			return
+		}
+
+		_, err := i.AddEventHandler(NewEventHandler(ctx, queue, handler, prct).HandlerFuncs())
+		if err != nil {
+			ks.started <- err
+			return
+		}
+		if !ks.Cache.WaitForCacheSync(ctx) {
+			// Would be great to return something more informative here
+			ks.started <- errors.New("cache did not sync")
+		}
+		close(ks.started)
+	}()
+
+	return nil
+}
+
+func (ks *Kind) String() string {
+	if ks.Type != nil {
+		return fmt.Sprintf("kind source: %T", ks.Type)
+	}
+	return "kind source: unknown type"
+}
+
+// WaitForSync implements SyncingSource to allow controllers to wait with starting
+// workers until the cache is synced.
+func (ks *Kind) WaitForSync(ctx context.Context) error {
+	select {
+	case err := <-ks.started:
+		return err
+	case <-ctx.Done():
+		ks.startCancel()
+		if errors.Is(ctx.Err(), context.Canceled) {
+			return nil
+		}
+		return fmt.Errorf("timed out waiting for cache to be synced for Kind %T", ks.Type)
+	}
+}