Change:
As a prerequisite of moving the , , , and controllers to use the apps/v1beta2 APIs, we need to add list expansions for , , , and to .
/assign
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/sig apps

Discussion:
srcs = [ "controllerrevision.go", "daemonset.go", <ins> "daemonset_expansion.go", </ins> "deployment.go", <ins> "deployment_expansion.go", </ins> "expansion_generated.go", "replicaset.go", <ins> "replicaset_expansion.go", </ins> "scale.go", "statefulset.go", <ins> "statefulset_expansion.go", </ins> ], deps = [ "//vendor/k8s.io/api/apps/v1beta2:go_default_library", <ins> "//vendor/k8s.io/api/core/v1:go_default_library", </ins> "//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library", <ins> "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library", </ins> "//vendor/k8s.io/apimachinery/pkg/labels:go_default_library", "//vendor/k8s.io/client-go/tools/cache:go_default_library", ],

<ins> /* Copyright 2017 The Kubernetes Authors. Licensed 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 v1beta2 import ( "fmt" apps "k8s.io/api/apps/v1beta2" "k8s.io/api/core/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/labels" ) // DaemonSetListerExpansion allows custom methods to be added to // DaemonSetLister. type DaemonSetListerExpansion interface { GetPodDaemonSets(pod *v1.Pod) ([]*apps.DaemonSet, error) GetHistoryDaemonSets(history *apps.ControllerRevision) ([]*apps.DaemonSet, error) } // DaemonSetNamespaceListerExpansion allows custom methods to be added to // DaemonSetNamespaceLister. type DaemonSetNamespaceListerExpansion interface{} // GetPodDaemonSets returns a list of DaemonSets that potentially match a pod. // Only the one specified in the Pod's ControllerRef will actually manage it. // Returns an error only if no matching DaemonSets are found. func (s *daemonSetLister) GetPodDaemonSets(pod *v1.Pod) ([]*apps.DaemonSet, error) { var selector labels.Selector var daemonSet *apps.DaemonSet if len(pod.Labels) == 0 { return nil, fmt.Errorf("no daemon sets found for pod %v because it has no labels", pod.Name) } list, err := s.DaemonSets(pod.Namespace).List(labels.Everything()) if err != nil { return nil, err } var daemonSets []*apps.DaemonSet for i := range list { daemonSet = list[i] if daemonSet.Namespace != pod.Namespace { continue } selector, err = metav1.LabelSelectorAsSelector(daemonSet.Spec.Selector) if err != nil { // this should not happen if the DaemonSet passed validation return nil, err } // If a daemonSet with a nil or empty selector creeps in, it should match nothing, not everything. if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) { continue } daemonSets = append(daemonSets, daemonSet) } if len(daemonSets) == 0 { return nil, fmt.Errorf("could not find daemon set for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels) } return daemonSets, nil } // GetHistoryDaemonSets returns a list of DaemonSets that potentially // match a ControllerRevision. Only the one specified in the ControllerRevision's ControllerRef // will actually manage it. // Returns an error only if no matching DaemonSets are found. func (s *daemonSetLister) GetHistoryDaemonSets(history *apps.ControllerRevision) ([]*apps.DaemonSet, error) { if len(history.Labels) == 0 { return nil, fmt.Errorf("no DaemonSet found for ControllerRevision %s because it has no labels", history.Name) } list, err := s.DaemonSets(history.Namespace).List(labels.Everything()) if err != nil { return nil, err } var daemonSets []*apps.DaemonSet for _, ds := range list { selector, err := metav1.LabelSelectorAsSelector(ds.Spec.Selector) if err != nil { return nil, fmt.Errorf("invalid label selector: %v", err) } // If a DaemonSet with a nil or empty selector creeps in, it should match nothing, not everything. if selector.Empty() || !selector.Matches(labels.Set(history.Labels)) { continue } daemonSets = append(daemonSets, ds) } if len(daemonSets) == 0 { return nil, fmt.Errorf("could not find DaemonSets for ControllerRevision %s in namespace %s with labels: %v", history.Name, history.Namespace, history.Labels) } return daemonSets, nil } </ins>

<ins> /* Copyright 2017 The Kubernetes Authors. Licensed 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 v1beta2 import ( "fmt" apps "k8s.io/api/apps/v1beta2" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/labels" ) // DeploymentListerExpansion allows custom methods to be added to // DeploymentLister. type DeploymentListerExpansion interface { GetDeploymentsForReplicaSet(rs *apps.ReplicaSet) ([]*apps.Deployment, error) } // DeploymentNamespaceListerExpansion allows custom methods to be added to // DeploymentNamespaceLister. type DeploymentNamespaceListerExpansion interface{} // GetDeploymentsForReplicaSet returns a list of Deployments that potentially // match a ReplicaSet. Only the one specified in the ReplicaSet's ControllerRef // will actually manage it. // Returns an error only if no matching Deployments are found. func (s *deploymentLister) GetDeploymentsForReplicaSet(rs *apps.ReplicaSet) ([]*apps.Deployment, error) { if len(rs.Labels) == 0 { return nil, fmt.Errorf("no deployments found for ReplicaSet %v because it has no labels", rs.Name) } // TODO: MODIFY THIS METHOD so that it checks for the podTemplateSpecHash label dList, err := s.Deployments(rs.Namespace).List(labels.Everything()) if err != nil { return nil, err } var deployments []*apps.Deployment for _, d := range dList { selector, err := metav1.LabelSelectorAsSelector(d.Spec.Selector) if err != nil { return nil, fmt.Errorf("invalid label selector: %v", err) } // If a deployment with a nil or empty selector creeps in, it should match nothing, not everything. if selector.Empty() || !selector.Matches(labels.Set(rs.Labels)) { continue } deployments = append(deployments, d) } if len(deployments) == 0 { return nil, fmt.Errorf("could not find deployments set for ReplicaSet %s in namespace %s with labels: %v", rs.Name, rs.Namespace, rs.Labels) } return deployments, nil } </ins>

// ControllerRevisionNamespaceLister. type ControllerRevisionNamespaceListerExpansion interface{} <del> // DaemonSetListerExpansion allows custom methods to be added to // DaemonSetLister. type DaemonSetListerExpansion interface{} // DaemonSetNamespaceListerExpansion allows custom methods to be added to // DaemonSetNamespaceLister. type DaemonSetNamespaceListerExpansion interface{} // DeploymentListerExpansion allows custom methods to be added to // DeploymentLister. type DeploymentListerExpansion interface{} // DeploymentNamespaceListerExpansion allows custom methods to be added to // DeploymentNamespaceLister. type DeploymentNamespaceListerExpansion interface{} // ReplicaSetListerExpansion allows custom methods to be added to // ReplicaSetLister. type ReplicaSetListerExpansion interface{} // ReplicaSetNamespaceListerExpansion allows custom methods to be added to // ReplicaSetNamespaceLister. type ReplicaSetNamespaceListerExpansion interface{} </del> // ScaleListerExpansion allows custom methods to be added to // ScaleLister. type ScaleListerExpansion interface{}

// ScaleNamespaceListerExpansion allows custom methods to be added to // ScaleNamespaceLister. type ScaleNamespaceListerExpansion interface{} <del> // StatefulSetListerExpansion allows custom methods to be added to // StatefulSetLister. type StatefulSetListerExpansion interface{} // StatefulSetNamespaceListerExpansion allows custom methods to be added to // StatefulSetNamespaceLister. type StatefulSetNamespaceListerExpansion interface{} </del>

<ins> /* Copyright 2017 The Kubernetes Authors. Licensed 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 v1beta2 import ( "fmt" apps "k8s.io/api/apps/v1beta2" "k8s.io/api/core/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/labels" ) // ReplicaSetListerExpansion allows custom methods to be added to // ReplicaSetLister. type ReplicaSetListerExpansion interface { GetPodReplicaSets(pod *v1.Pod) ([]*apps.ReplicaSet, error) } // ReplicaSetNamespaceListerExpansion allows custom methods to be added to // ReplicaSetNamespaceLister. type ReplicaSetNamespaceListerExpansion interface{} // GetPodReplicaSets returns a list of ReplicaSets that potentially match a pod. // Only the one specified in the Pod's ControllerRef will actually manage it. // Returns an error only if no matching ReplicaSets are found. func (s *replicaSetLister) GetPodReplicaSets(pod *v1.Pod) ([]*apps.ReplicaSet, error) { if len(pod.Labels) == 0 { return nil, fmt.Errorf("no ReplicaSets found for pod %v because it has no labels", pod.Name) } list, err := s.ReplicaSets(pod.Namespace).List(labels.Everything()) if err != nil { return nil, err } var rss []*apps.ReplicaSet for _, rs := range list { if rs.Namespace != pod.Namespace { continue } selector, err := metav1.LabelSelectorAsSelector(rs.Spec.Selector) if err != nil { return nil, fmt.Errorf("invalid selector: %v", err) } // If a ReplicaSet with a nil or empty selector creeps in, it should match nothing, not everything. if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) { continue } rss = append(rss, rs) } if len(rss) == 0 { return nil, fmt.Errorf("could not find ReplicaSet for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels) } return rss, nil } </ins>

<ins> /* Copyright 2017 The Kubernetes Authors. Licensed 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 v1beta2 import ( "fmt" apps "k8s.io/api/apps/v1beta2" "k8s.io/api/core/v1" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/labels" ) // StatefulSetListerExpansion allows custom methods to be added to // StatefulSetLister. type StatefulSetListerExpansion interface { GetPodStatefulSets(pod *v1.Pod) ([]*apps.StatefulSet, error) } // StatefulSetNamespaceListerExpansion allows custom methods to be added to // StatefulSetNamespaceLister. type StatefulSetNamespaceListerExpansion interface{} // GetPodStatefulSets returns a list of StatefulSets that potentially match a pod. // Only the one specified in the Pod's ControllerRef will actually manage it. // Returns an error only if no matching StatefulSets are found. func (s *statefulSetLister) GetPodStatefulSets(pod *v1.Pod) ([]*apps.StatefulSet, error) { var selector labels.Selector var ps *apps.StatefulSet if len(pod.Labels) == 0 { return nil, fmt.Errorf("no StatefulSets found for pod %v because it has no labels", pod.Name) } list, err := s.StatefulSets(pod.Namespace).List(labels.Everything()) if err != nil { return nil, err } var psList []*apps.StatefulSet for i := range list { ps = list[i] if ps.Namespace != pod.Namespace { continue } selector, err = metav1.LabelSelectorAsSelector(ps.Spec.Selector) if err != nil { return nil, fmt.Errorf("invalid selector: %v", err) } // If a StatefulSet with a nil or empty selector creeps in, it should match nothing, not everything. if selector.Empty() || !selector.Matches(labels.Set(pod.Labels)) { continue } psList = append(psList, ps) } if len(psList) == 0 { return nil, fmt.Errorf("could not find StatefulSet for pod %s in namespace %s with labels: %v", pod.Name, pod.Namespace, pod.Labels) } return psList, nil } </ins>