label length limitation

Signed-off-by: Allen Li <[email protected]>

controllers/operator/manager.go

@@ -473,22 +473,24 @@ func (m *ODLMOperator) GetClusterServiceVersionList(ctx context.Context, sub *ol
 
 	packageName := sub.Spec.Package
 	csvNamespace := sub.Namespace
+	labelKey := packageName + "." + csvNamespace
+	labelKey = util.GetFirstNCharacter(labelKey, 63)
 
 	// Get the ClusterServiceVersion list with label operators.coreos.com/packageName.csvNamespace=''
 	csvList := &olmv1alpha1.ClusterServiceVersionList{}
 	opts := []client.ListOption{
-		client.MatchingLabels{fmt.Sprintf("operators.coreos.com/%s.%s", packageName, csvNamespace): ""},
+		client.MatchingLabels{fmt.Sprintf("operators.coreos.com/%s", labelKey): ""},
 		client.InNamespace(csvNamespace),
 	}
 
 	if err := m.Reader.List(ctx, csvList, opts...); err != nil {
 		if apierrors.IsNotFound(err) || len(csvList.Items) == 0 {
-			klog.V(3).Infof("No ClusterServiceVersion found with label operators.coreos.com/%s.%s", packageName, csvNamespace)
+			klog.V(3).Infof("No ClusterServiceVersion found with label operators.coreos.com/%s", labelKey)
 			return nil, nil
 		}
-		return nil, errors.Wrapf(err, "failed to list ClusterServiceVersions with label operators.coreos.com/%s.%s", packageName, csvNamespace)
+		return nil, errors.Wrapf(err, "failed to list ClusterServiceVersions with label operators.coreos.com/%s", labelKey)
 	} else if len(csvList.Items) > 1 {
-		klog.Warningf("Multiple ClusterServiceVersions found with label operators.coreos.com/%s.%s", packageName, csvNamespace)
+		klog.Warningf("Multiple ClusterServiceVersions found with label operators.coreos.com/%s", labelKey)
 	}
 
 	var csvs []*olmv1alpha1.ClusterServiceVersion
@@ -833,10 +835,11 @@ func (m *ODLMOperator) GetValueRefFromConfigMap(ctx context.Context, instanceTyp
 		}
 		return "", errors.Wrapf(err, "failed to get Configmap %s/%s", cmNs, cmName)
 	}
-
+	labelvalue := instanceType + "." + instanceNs + "." + instanceName
+	labelvalue = util.GetFirstNCharacter(labelvalue, 63)
 	// Set the Value Reference label for the ConfigMap
 	util.EnsureLabelsForConfigMap(cm, map[string]string{
-		constant.ODLMReferenceLabel: instanceType + "." + instanceNs + "." + instanceName,
+		constant.ODLMReferenceLabel: labelvalue,
 		constant.ODLMWatchedLabel:   "true",
 	})
 	// Update the ConfigMap with the Value Reference label

controllers/util/util.go

@@ -525,3 +525,10 @@ func addField(obj map[string]interface{}, fields []string, value interface{}) {
 	// Add the value to the map
 	addField(obj[fields[0]].(map[string]interface{}), fields[1:], value)
 }
+
+func GetFirstNCharacter(str string, n int) string {
+	if n >= len(str) {
+		return str
+	}
+	return string(str[:n])
+}