k8s.io/kubernetes@v1.29.3/test/integration/daemonset/util.go (about) 1 /* 2 Copyright 2022 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 daemonset 18 19 import ( 20 "context" 21 "fmt" 22 "sync" 23 24 "k8s.io/apiserver/pkg/admission" 25 api "k8s.io/kubernetes/pkg/apis/core" 26 ) 27 28 var _ admission.ValidationInterface = &fakePodFailAdmission{} 29 30 type fakePodFailAdmission struct { 31 lock sync.Mutex 32 limitedPodNumber int 33 succeedPodsCount int 34 } 35 36 func (f *fakePodFailAdmission) Handles(operation admission.Operation) bool { 37 return operation == admission.Create 38 } 39 40 func (f *fakePodFailAdmission) Validate(ctx context.Context, attr admission.Attributes, o admission.ObjectInterfaces) (err error) { 41 if attr.GetKind().GroupKind() != api.Kind("Pod") { 42 return nil 43 } 44 45 f.lock.Lock() 46 defer f.lock.Unlock() 47 48 if f.succeedPodsCount >= f.limitedPodNumber { 49 return fmt.Errorf("fakePodFailAdmission error") 50 } 51 f.succeedPodsCount++ 52 return nil 53 }