Ensure FeatureGate is copied from cluster to MCO render source

ignition-server/controllers/local_ignitionprovider.go

@@ -18,6 +18,7 @@ import (
 
 	"github.com/blang/semver"
 	"github.com/docker/distribution/manifest/manifestlist"
+	configv1 "github.com/openshift/api/config/v1"
 	hyperv1 "github.com/openshift/hypershift/api/v1beta1"
 	"github.com/openshift/hypershift/control-plane-operator/controllers/hostedcontrolplane/common"
 	"github.com/openshift/hypershift/control-plane-operator/controllers/hostedcontrolplane/imageprovider"
@@ -235,6 +236,27 @@ func (p *LocalIgnitionProvider) GetPayload(ctx context.Context, releaseImage str
 		return nil, fmt.Errorf("failed to extract templates from image: %w", err)
 	}
 
+	// Write out the feature gate manifest to the MCC dir.
+	if err := func() error {
+		featureGate := &configv1.FeatureGate{}
+		if err := p.Client.Get(ctx, client.ObjectKey{Name: "cluster"}, featureGate); err != nil {
+			return fmt.Errorf("failed to get feature gate: %w", err)
+		}
+
+		featureGateBytes, err := yaml.Marshal(featureGate)
+		if err != nil {
+			return fmt.Errorf("failed to marshal feature gate: %w", err)
+		}
+
+		if err := os.WriteFile(filepath.Join(mccBaseDir, "99_feature-gate.yaml"), featureGateBytes, 0644); err != nil {
+			return fmt.Errorf("failed to write feature gate: %w", err)
+		}
+
+		return nil
+	}(); err != nil {
+		return nil, fmt.Errorf("failed to extract feature gate: %w", err)
+	}
+
 	// Extract binaries from the MCO image into the bin directory
 	err = func() error {
 		start := time.Now()