migrate legacy API

Signed-off-by: hongming <talonwan@yunify.com>

pkg/models/resources/v1alpha3/pod/pods.go

@@ -0,0 +1,115 @@
+/*
+
+ Copyright 2019 The KubeSphere 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 pod
+
+import (
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/informers"
+	"kubesphere.io/kubesphere/pkg/api"
+	"kubesphere.io/kubesphere/pkg/apiserver/query"
+	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
+)
+
+type podsGetter struct {
+	informer informers.SharedInformerFactory
+}
+
+func New(sharedInformers informers.SharedInformerFactory) v1alpha3.Interface {
+	return &podsGetter{informer: sharedInformers}
+}
+
+func (d *podsGetter) Get(namespace, name string) (runtime.Object, error) {
+	return d.informer.Core().V1().Pods().Lister().Pods(namespace).Get(name)
+}
+
+func (d *podsGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
+
+	all, err := d.informer.Core().V1().Pods().Lister().Pods(namespace).List(query.Selector())
+	if err != nil {
+		return nil, err
+	}
+
+	var result []runtime.Object
+	for _, app := range all {
+		result = append(result, app)
+	}
+
+	return v1alpha3.DefaultList(result, query, d.compare, d.filter), nil
+}
+
+func (d *podsGetter) compare(left runtime.Object, right runtime.Object, field query.Field) bool {
+
+	leftPod, ok := left.(*corev1.Pod)
+	if !ok {
+		return false
+	}
+
+	rightPod, ok := right.(*corev1.Pod)
+	if !ok {
+		return false
+	}
+
+	return v1alpha3.DefaultObjectMetaCompare(leftPod.ObjectMeta, rightPod.ObjectMeta, field)
+}
+
+func (d *podsGetter) filter(object runtime.Object, filter query.Filter) bool {
+	pod, ok := object.(*corev1.Pod)
+
+	if !ok {
+		return false
+	}
+	switch filter.Field {
+	case "nodeName":
+		if pod.Spec.NodeName != string(filter.Value) {
+			return false
+		}
+	case "pvcName":
+		if !d.podBindPVC(pod, string(filter.Value)) {
+			return false
+		}
+	case "serviceName":
+		if !d.podBelongToService(pod, string(filter.Value)) {
+			return false
+		}
+	}
+	return v1alpha3.DefaultObjectMetaFilter(pod.ObjectMeta, filter)
+}
+
+func (s *podsGetter) podBindPVC(item *corev1.Pod, pvcName string) bool {
+	for _, v := range item.Spec.Volumes {
+		if v.VolumeSource.PersistentVolumeClaim != nil &&
+			v.VolumeSource.PersistentVolumeClaim.ClaimName == pvcName {
+			return true
+		}
+	}
+	return false
+}
+
+func (s *podsGetter) podBelongToService(item *corev1.Pod, serviceName string) bool {
+	service, err := s.informer.Core().V1().Services().Lister().Services(item.Namespace).Get(serviceName)
+	if err != nil {
+		return false
+	}
+	selector := labels.Set(service.Spec.Selector).AsSelectorPreValidated()
+	if selector.Empty() || !selector.Matches(labels.Set(item.Labels)) {
+		return false
+	}
+	return true
+}