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daemonsetpods.go
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daemonsetpods.go
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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 daemonset
import (
"log"
"github.com/kubernetes/dashboard/src/app/backend/client"
"github.com/kubernetes/dashboard/src/app/backend/resource/common"
"github.com/kubernetes/dashboard/src/app/backend/resource/pod"
"github.com/kubernetes/dashboard/src/app/backend/resource/dataselect"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/apis/extensions"
k8sClient "k8s.io/kubernetes/pkg/client/unversioned"
)
// GetDaemonSetPods return list of pods targeting daemon set.
func GetDaemonSetPods(client k8sClient.Interface, heapsterClient client.HeapsterClient,
dsQuery *dataselect.DataSelectQuery, daemonSetName, namespace string) (*pod.PodList, error) {
log.Printf("Getting replication controller %s pods in namespace %s", daemonSetName, namespace)
pods, err := getRawDaemonSetPods(client, daemonSetName, namespace)
if err != nil {
return nil, err
}
podList := pod.CreatePodList(pods, dsQuery, heapsterClient)
return &podList, nil
}
// Returns array of api pods targeting daemon set with given name.
func getRawDaemonSetPods(client k8sClient.Interface, daemonSetName, namespace string) (
[]api.Pod, error) {
daemonSet, err := client.Extensions().DaemonSets(namespace).Get(daemonSetName)
if err != nil {
return nil, err
}
channels := &common.ResourceChannels{
PodList: common.GetPodListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
}
podList := <-channels.PodList.List
if err := <-channels.PodList.Error; err != nil {
return nil, err
}
matchingPods := common.FilterNamespacedPodsByLabelSelector(podList.Items,
daemonSet.ObjectMeta.Namespace, daemonSet.Spec.Selector)
return matchingPods, nil
}
// Returns simple info about pods(running, desired, failing, etc.) related to given daemon set.
func getDaemonSetPodInfo(client k8sClient.Interface, daemonSet *extensions.DaemonSet) (
*common.PodInfo, error) {
pods, err := getRawDaemonSetPods(client, daemonSet.Name, daemonSet.Namespace)
if err != nil {
return nil, err
}
podInfo := common.GetPodInfo(daemonSet.Status.CurrentNumberScheduled,
daemonSet.Status.DesiredNumberScheduled, pods)
return &podInfo, nil
}