1 /* 2 Copyright 2018 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package polymorphichelpers 18 19 import ( 20 "k8s.io/apimachinery/pkg/api/meta" 21 "k8s.io/cli-runtime/pkg/genericclioptions" 22 "k8s.io/client-go/kubernetes" 23 ) 24 25 // Returns a Rollbacker for changing the rollback version of the specified RESTMapping type or an error 26 func rollbacker(restClientGetter genericclioptions.RESTClientGetter, mapping *meta.RESTMapping) (Rollbacker, error) { 27 clientConfig, err := restClientGetter.ToRESTConfig() 28 if err != nil { 29 return nil, err 30 } 31 external, err := kubernetes.NewForConfig(clientConfig) 32 if err != nil { 33 return nil, err 34 } 35 36 return RollbackerFor(mapping.GroupVersionKind.GroupKind(), external) 37 } 38