| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| package olm |
| |
| import ( |
| "context" |
| |
| kubernetesutils "github.com/apache/camel-k/pkg/util/kubernetes" |
| olmv1 "github.com/operator-framework/operator-lifecycle-manager/pkg/api/apis/operators/v1" |
| olmv1alpha1 "github.com/operator-framework/operator-lifecycle-manager/pkg/api/apis/operators/v1alpha1" |
| k8serrors "k8s.io/apimachinery/pkg/api/errors" |
| "k8s.io/apimachinery/pkg/runtime/schema" |
| "k8s.io/client-go/kubernetes" |
| ) |
| |
| // IsAPIAvailable returns true if we are connected to a cluster with OLM installed |
| // |
| // This method should not be called from the operator, as it might require permissions that are not available. |
| func IsAPIAvailable(ctx context.Context, c kubernetes.Interface, namespace string) (bool, error) { |
| // check some Knative APIs |
| for _, api := range getOLMGroupVersions() { |
| if installed, err := isAvailable(c, api); err != nil { |
| return false, err |
| } else if installed { |
| return true, nil |
| } |
| } |
| |
| return false, nil |
| } |
| |
| func isAvailable(c kubernetes.Interface, api schema.GroupVersion) (bool, error) { |
| _, err := c.Discovery().ServerResourcesForGroupVersion(api.String()) |
| if err != nil && (k8serrors.IsNotFound(err) || kubernetesutils.IsUnknownAPIError(err)) { |
| return false, nil |
| } else if err != nil { |
| return false, err |
| } |
| return true, nil |
| } |
| |
| func getOLMGroupVersions() []schema.GroupVersion { |
| return []schema.GroupVersion{ |
| olmv1alpha1.SchemeGroupVersion, |
| olmv1.SchemeGroupVersion, |
| } |
| } |