Log catalogd feature gate states

Author: bentito

cmd/catalogd/main.go

@@ -188,6 +188,9 @@ func validateConfig(cfg *config) error {
 }
 
 func run(ctx context.Context) error {
+	// log startup message and feature gate status
+	setupLog.Info("starting up catalogd", "version info", version.String())
+	features.LogFeatureGateStates(setupLog, features.CatalogdFeatureGate)
 	authFilePath := filepath.Join(os.TempDir(), fmt.Sprintf("%s-%s.json", authFilePrefix, apimachineryrand.String(8)))
 
 	protocol := "http://"

internal/catalogd/features/features.go

@@ -1,6 +1,9 @@
 package features
 
 import (
+	"sort"
+
+	"github.com/go-logr/logr"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/component-base/featuregate"
 )
@@ -18,3 +21,21 @@ var CatalogdFeatureGate featuregate.MutableFeatureGate = featuregate.NewFeatureG
 func init() {
 	utilruntime.Must(CatalogdFeatureGate.Add(catalogdFeatureGates))
 }
+
+// LogFeatureGateStates logs the state of all known feature gates for catalogd
+func LogFeatureGateStates(log logr.Logger, fg featuregate.FeatureGate) {
+	// Sort the keys for consistent logging order
+	featureKeys := make([]featuregate.Feature, 0, len(catalogdFeatureGates))
+	for k := range catalogdFeatureGates {
+		featureKeys = append(featureKeys, k)
+	}
+	sort.Slice(featureKeys, func(i, j int) bool {
+		return string(featureKeys[i]) < string(featureKeys[j])
+	})
+
+	featurePairs := make([]interface{}, 0, len(featureKeys))
+	for _, feature := range featureKeys {
+		featurePairs = append(featurePairs, feature, fg.Enabled(feature))
+	}
+	log.Info("catalogd feature gate status", featurePairs...)
+}