1 /* 2 Copyright 2016 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 v1 18 19 import ( 20 "fmt" 21 22 batch "k8s.io/api/batch/v1" 23 "k8s.io/api/core/v1" 24 metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" 25 "k8s.io/apimachinery/pkg/labels" 26 ) 27 28 // JobListerExpansion allows custom methods to be added to 29 // JobLister. 30 type JobListerExpansion interface { 31 // GetPodJobs returns a list of Jobs that potentially 32 // match a Pod. Only the one specified in the Pod's ControllerRef 33 // will actually manage it. 34 // Returns an error only if no matching Jobs are found. 35 GetPodJobs(pod *v1.Pod) (jobs []batch.Job, err error) 36 } 37 38 // GetPodJobs returns a list of Jobs that potentially 39 // match a Pod. Only the one specified in the Pod's ControllerRef 40 // will actually manage it. 41 // Returns an error only if no matching Jobs are found. 42 func (l *jobLister) GetPodJobs(pod *v1.Pod) (jobs []batch.Job, err error) { 43 if len(pod.Labels) == 0 { 44 err = fmt.Errorf("no jobs found for pod %v because it has no labels", pod.Name) 45 return 46 } 47 48 var list []*batch.Job 49 list, err = l.Jobs(pod.Namespace).List(labels.Everything()) 50 if err != nil { 51 return 52 } 53 for _, job := range list { 54 selector, err := metav1.LabelSelectorAsSelector(job.Spec.Selector) 55 if err != nil { 56 // This object has an invalid selector, it does not match the pod 57 continue 58 } 59 if !selector.Matches(labels.Set(pod.Labels)) { 60 continue 61 } 62 jobs = append(jobs, *job) 63 } 64 if len(jobs) == 0 { 65 err = fmt.Errorf("could not find jobs for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels) 66 } 67 return 68 } 69 70 // JobNamespaceListerExpansion allows custom methods to be added to 71 // JobNamespaceLister. 72 type JobNamespaceListerExpansion interface{} 73