Add generated file
This PR adds generated files under pkg/client and vendor folder.
This commit is contained in:
xing-yang
269
vendor/k8s.io/kubernetes/pkg/kubectl/cmd/top_pod.go
generated
vendored
Normal file
269
vendor/k8s.io/kubernetes/pkg/kubectl/cmd/top_pod.go
generated
vendored
Normal file
@@ -0,0 +1,269 @@
|
||||
/*
|
||||
Copyright 2016 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 cmd
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"time"
|
||||
|
||||
"k8s.io/api/core/v1"
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/apimachinery/pkg/labels"
|
||||
"k8s.io/client-go/discovery"
|
||||
corev1 "k8s.io/client-go/kubernetes/typed/core/v1"
|
||||
"k8s.io/kubernetes/pkg/kubectl/cmd/templates"
|
||||
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
|
||||
"k8s.io/kubernetes/pkg/kubectl/metricsutil"
|
||||
"k8s.io/kubernetes/pkg/kubectl/util/i18n"
|
||||
metricsapi "k8s.io/metrics/pkg/apis/metrics"
|
||||
metricsv1beta1api "k8s.io/metrics/pkg/apis/metrics/v1beta1"
|
||||
metricsclientset "k8s.io/metrics/pkg/client/clientset_generated/clientset"
|
||||
|
||||
"github.com/golang/glog"
|
||||
"github.com/spf13/cobra"
|
||||
"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
|
||||
)
|
||||
|
||||
type TopPodOptions struct {
|
||||
ResourceName string
|
||||
Namespace string
|
||||
Selector string
|
||||
AllNamespaces bool
|
||||
PrintContainers bool
|
||||
PodClient corev1.PodsGetter
|
||||
HeapsterOptions HeapsterTopOptions
|
||||
Client *metricsutil.HeapsterMetricsClient
|
||||
Printer *metricsutil.TopCmdPrinter
|
||||
DiscoveryClient discovery.DiscoveryInterface
|
||||
MetricsClient metricsclientset.Interface
|
||||
|
||||
genericclioptions.IOStreams
|
||||
}
|
||||
|
||||
const metricsCreationDelay = 2 * time.Minute
|
||||
|
||||
var (
|
||||
topPodLong = templates.LongDesc(i18n.T(`
|
||||
Display Resource (CPU/Memory/Storage) usage of pods.
|
||||
|
||||
The 'top pod' command allows you to see the resource consumption of pods.
|
||||
|
||||
Due to the metrics pipeline delay, they may be unavailable for a few minutes
|
||||
since pod creation.`))
|
||||
|
||||
topPodExample = templates.Examples(i18n.T(`
|
||||
# Show metrics for all pods in the default namespace
|
||||
kubectl top pod
|
||||
|
||||
# Show metrics for all pods in the given namespace
|
||||
kubectl top pod --namespace=NAMESPACE
|
||||
|
||||
# Show metrics for a given pod and its containers
|
||||
kubectl top pod POD_NAME --containers
|
||||
|
||||
# Show metrics for the pods defined by label name=myLabel
|
||||
kubectl top pod -l name=myLabel`))
|
||||
)
|
||||
|
||||
func NewCmdTopPod(f cmdutil.Factory, o *TopPodOptions, streams genericclioptions.IOStreams) *cobra.Command {
|
||||
if o == nil {
|
||||
o = &TopPodOptions{
|
||||
IOStreams: streams,
|
||||
}
|
||||
}
|
||||
|
||||
cmd := &cobra.Command{
|
||||
Use: "pod [NAME | -l label]",
|
||||
DisableFlagsInUseLine: true,
|
||||
Short: i18n.T("Display Resource (CPU/Memory/Storage) usage of pods"),
|
||||
Long: topPodLong,
|
||||
Example: topPodExample,
|
||||
Run: func(cmd *cobra.Command, args []string) {
|
||||
if err := o.Complete(f, cmd, args); err != nil {
|
||||
cmdutil.CheckErr(err)
|
||||
}
|
||||
if err := o.Validate(); err != nil {
|
||||
cmdutil.CheckErr(cmdutil.UsageErrorf(cmd, "%v", err))
|
||||
}
|
||||
if err := o.RunTopPod(); err != nil {
|
||||
cmdutil.CheckErr(err)
|
||||
}
|
||||
},
|
||||
Aliases: []string{"pods", "po"},
|
||||
}
|
||||
cmd.Flags().StringVarP(&o.Selector, "selector", "l", o.Selector, "Selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2)")
|
||||
cmd.Flags().BoolVar(&o.PrintContainers, "containers", o.PrintContainers, "If present, print usage of containers within a pod.")
|
||||
cmd.Flags().BoolVar(&o.AllNamespaces, "all-namespaces", o.AllNamespaces, "If present, list the requested object(s) across all namespaces. Namespace in current context is ignored even if specified with --namespace.")
|
||||
o.HeapsterOptions.Bind(cmd.Flags())
|
||||
return cmd
|
||||
}
|
||||
|
||||
func (o *TopPodOptions) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
|
||||
var err error
|
||||
if len(args) == 1 {
|
||||
o.ResourceName = args[0]
|
||||
} else if len(args) > 1 {
|
||||
return cmdutil.UsageErrorf(cmd, "%s", cmd.Use)
|
||||
}
|
||||
|
||||
o.Namespace, _, err = f.ToRawKubeConfigLoader().Namespace()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
clientset, err := f.KubernetesClientSet()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
o.DiscoveryClient = clientset.DiscoveryClient
|
||||
config, err := f.ToRESTConfig()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
o.MetricsClient, err = metricsclientset.NewForConfig(config)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
o.PodClient = clientset.CoreV1()
|
||||
o.Client = metricsutil.NewHeapsterMetricsClient(clientset.CoreV1(), o.HeapsterOptions.Namespace, o.HeapsterOptions.Scheme, o.HeapsterOptions.Service, o.HeapsterOptions.Port)
|
||||
|
||||
o.Printer = metricsutil.NewTopCmdPrinter(o.Out)
|
||||
return nil
|
||||
}
|
||||
|
||||
func (o *TopPodOptions) Validate() error {
|
||||
if len(o.ResourceName) > 0 && len(o.Selector) > 0 {
|
||||
return errors.New("only one of NAME or --selector can be provided")
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (o TopPodOptions) RunTopPod() error {
|
||||
var err error
|
||||
selector := labels.Everything()
|
||||
if len(o.Selector) > 0 {
|
||||
selector, err = labels.Parse(o.Selector)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
apiGroups, err := o.DiscoveryClient.ServerGroups()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
metricsAPIAvailable := SupportedMetricsAPIVersionAvailable(apiGroups)
|
||||
|
||||
metrics := &metricsapi.PodMetricsList{}
|
||||
if metricsAPIAvailable {
|
||||
metrics, err = getMetricsFromMetricsAPI(o.MetricsClient, o.Namespace, o.ResourceName, o.AllNamespaces, selector)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
metrics, err = o.Client.GetPodMetrics(o.Namespace, o.ResourceName, o.AllNamespaces, selector)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: Refactor this once Heapster becomes the API server.
|
||||
// First we check why no metrics have been received.
|
||||
if len(metrics.Items) == 0 {
|
||||
// If the API server query is successful but all the pods are newly created,
|
||||
// the metrics are probably not ready yet, so we return the error here in the first place.
|
||||
e := verifyEmptyMetrics(o, selector)
|
||||
if e != nil {
|
||||
return e
|
||||
}
|
||||
}
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return o.Printer.PrintPodMetrics(metrics.Items, o.PrintContainers, o.AllNamespaces)
|
||||
}
|
||||
|
||||
func getMetricsFromMetricsAPI(metricsClient metricsclientset.Interface, namespace, resourceName string, allNamespaces bool, selector labels.Selector) (*metricsapi.PodMetricsList, error) {
|
||||
var err error
|
||||
ns := metav1.NamespaceAll
|
||||
if !allNamespaces {
|
||||
ns = namespace
|
||||
}
|
||||
versionedMetrics := &metricsv1beta1api.PodMetricsList{}
|
||||
if resourceName != "" {
|
||||
m, err := metricsClient.Metrics().PodMetricses(ns).Get(resourceName, metav1.GetOptions{})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
versionedMetrics.Items = []metricsv1beta1api.PodMetrics{*m}
|
||||
} else {
|
||||
versionedMetrics, err = metricsClient.Metrics().PodMetricses(ns).List(metav1.ListOptions{LabelSelector: selector.String()})
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
metrics := &metricsapi.PodMetricsList{}
|
||||
err = metricsv1beta1api.Convert_v1beta1_PodMetricsList_To_metrics_PodMetricsList(versionedMetrics, metrics, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return metrics, nil
|
||||
}
|
||||
|
||||
func verifyEmptyMetrics(o TopPodOptions, selector labels.Selector) error {
|
||||
if len(o.ResourceName) > 0 {
|
||||
pod, err := o.PodClient.Pods(o.Namespace).Get(o.ResourceName, metav1.GetOptions{})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if err := checkPodAge(pod); err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
pods, err := o.PodClient.Pods(o.Namespace).List(metav1.ListOptions{
|
||||
LabelSelector: selector.String(),
|
||||
})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if len(pods.Items) == 0 {
|
||||
return nil
|
||||
}
|
||||
for _, pod := range pods.Items {
|
||||
if err := checkPodAge(&pod); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
return errors.New("metrics not available yet")
|
||||
}
|
||||
|
||||
func checkPodAge(pod *v1.Pod) error {
|
||||
age := time.Since(pod.CreationTimestamp.Time)
|
||||
if age > metricsCreationDelay {
|
||||
message := fmt.Sprintf("Metrics not available for pod %s/%s, age: %s", pod.Namespace, pod.Name, age.String())
|
||||
glog.Warningf(message)
|
||||
return errors.New(message)
|
||||
} else {
|
||||
glog.V(2).Infof("Metrics not yet available for pod %s/%s, age: %s", pod.Namespace, pod.Name, age.String())
|
||||
return nil
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user