Fix multiple bootstrap keys found

pkg/cluster/storage.go

@@ -132,9 +132,9 @@ func (c *Cluster) getBootstrapKeyFromStorage(ctx context.Context, storageClient
 		return nil, false, nil
 	}
 	if len(bootstrapList) > 1 {
-		return nil, false, errors.New("found multiple bootstrap keys in storage")
+		logrus.Warn("found multiple bootstrap keys in storage")
 	}
-	bootstrapKV := bootstrapList[0]
+	for _, bootstrapKV := range bootstrapList {
 		// checking for empty string bootstrap key
 		switch string(bootstrapKV.Key) {
 		case emptyStringKey:
@@ -147,6 +147,7 @@ func (c *Cluster) getBootstrapKeyFromStorage(ctx context.Context, storageClient
 		case tokenKey:
 			return &bootstrapKV, false, nil
 		}
+	}
 
 	return nil, false, errors.New("bootstrap data already found and encrypted with different token")
 }