func RunPortForward(f *cmdutil.Factory, cmd *cobra.Command, args []string, fw portForwarder) error {
podName := cmdutil.GetFlagString(cmd, "pod")
if len(podName) == 0 {
return cmdutil.UsageError(cmd, "POD is required for exec")
}
if len(args) < 1 {
return cmdutil.UsageError(cmd, "at least 1 PORT is required for port-forward")
}
namespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
pod, err := client.Pods(namespace).Get(podName)
if err != nil {
return err
}
if pod.Status.Phase != api.PodRunning {
glog.Fatalf("Unable to execute command because pod is not running. Current status=%v", pod.Status.Phase)
}
config, err := f.ClientConfig()
if err != nil {
return err
}
signals := make(chan os.Signal, 1)
signal.Notify(signals, os.Interrupt)
defer signal.Stop(signals)
stopCh := make(chan struct{}, 1)
go func() {
<-signals
close(stopCh)
}()
req := client.RESTClient.Get().
Resource("pods").
Namespace(namespace).
Name(pod.Name).
SubResource("portforward")
return fw.ForwardPorts(req, config, args, stopCh)
}
func TestApiserverMetrics(t *testing.T) {
_, s := framework.RunAMaster(t)
defer s.Close()
// Make a request to the apiserver to ensure there's at least one data point
// for the metrics we're expecting -- otherwise, they won't be exported.
client := client.NewOrDie(&client.Config{Host: s.URL, Version: testapi.Version()})
if _, err := client.Pods(api.NamespaceDefault).List(labels.Everything(), fields.Everything()); err != nil {
t.Fatalf("unexpected error getting pods: %v", err)
}
metrics, err := scrapeMetrics(s)
if err != nil {
t.Fatal(err)
}
checkForExpectedMetrics(t, metrics, []string{
"apiserver_request_count",
"apiserver_request_latencies",
})
}
func TestClient(t *testing.T) {
_, s := framework.RunAMaster(t)
defer s.Close()
ns := api.NamespaceDefault
framework.DeleteAllEtcdKeys()
client := client.NewOrDie(&client.Config{Host: s.URL, Version: testapi.Version()})
info, err := client.ServerVersion()
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if e, a := version.Get(), *info; !reflect.DeepEqual(e, a) {
t.Errorf("expected %#v, got %#v", e, a)
}
pods, err := client.Pods(ns).List(labels.Everything(), fields.Everything())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(pods.Items) != 0 {
t.Errorf("expected no pods, got %#v", pods)
}
// get a validation error
pod := &api.Pod{
ObjectMeta: api.ObjectMeta{
GenerateName: "test",
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: "test",
},
},
},
}
got, err := client.Pods(ns).Create(pod)
if err == nil {
t.Fatalf("unexpected non-error: %v", got)
}
// get a created pod
pod.Spec.Containers[0].Image = "an-image"
got, err = client.Pods(ns).Create(pod)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if got.Name == "" {
t.Errorf("unexpected empty pod Name %v", got)
}
// pod is shown, but not scheduled
pods, err = client.Pods(ns).List(labels.Everything(), fields.Everything())
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(pods.Items) != 1 {
t.Errorf("expected one pod, got %#v", pods)
}
actual := pods.Items[0]
if actual.Name != got.Name {
t.Errorf("expected pod %#v, got %#v", got, actual)
}
if actual.Spec.NodeName != "" {
t.Errorf("expected pod to be unscheduled, got %#v", actual)
}
}
func TestMultiWatch(t *testing.T) {
// Disable this test as long as it demonstrates a problem.
// TODO: Reenable this test when we get #6059 resolved.
return
const watcherCount = 50
runtime.GOMAXPROCS(watcherCount)
framework.DeleteAllEtcdKeys()
defer framework.DeleteAllEtcdKeys()
_, s := framework.RunAMaster(t)
defer s.Close()
ns := api.NamespaceDefault
client := client.NewOrDie(&client.Config{Host: s.URL, Version: testapi.Version()})
dummyEvent := func(i int) *api.Event {
name := fmt.Sprintf("unrelated-%v", i)
return &api.Event{
ObjectMeta: api.ObjectMeta{
Name: fmt.Sprintf("%v.%x", name, time.Now().UnixNano()),
Namespace: ns,
},
InvolvedObject: api.ObjectReference{
Name: name,
Namespace: ns,
},
Reason: fmt.Sprintf("unrelated change %v", i),
}
}
type timePair struct {
t time.Time
name string
}
receivedTimes := make(chan timePair, watcherCount*2)
watchesStarted := sync.WaitGroup{}
// make a bunch of pods and watch them
for i := 0; i < watcherCount; i++ {
watchesStarted.Add(1)
name := fmt.Sprintf("multi-watch-%v", i)
got, err := client.Pods(ns).Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: name,
Labels: labels.Set{"watchlabel": name},
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: "nothing",
Image: "qingyuan/pause",
}},
},
})
if err != nil {
t.Fatalf("Couldn't make %v: %v", name, err)
}
go func(name, rv string) {
w, err := client.Pods(ns).Watch(
labels.Set{"watchlabel": name}.AsSelector(),
fields.Everything(),
rv,
)
if err != nil {
panic(fmt.Sprintf("watch error for %v: %v", name, err))
}
defer w.Stop()
watchesStarted.Done()
e, ok := <-w.ResultChan() // should get the update (that we'll do below)
if !ok {
panic(fmt.Sprintf("%v ended early?", name))
}
if e.Type != watch.Modified {
panic(fmt.Sprintf("Got unexpected watch notification:\n%v: %+v %+v", name, e, e.Object))
}
receivedTimes <- timePair{time.Now(), name}
}(name, got.ObjectMeta.ResourceVersion)
}
log.Printf("%v: %v pods made and watchers started", time.Now(), watcherCount)
// wait for watches to start before we start spamming the system with
// objects below, otherwise we'll hit the watch window restriction.
watchesStarted.Wait()
const (
useEventsAsUnrelatedType = false
usePodsAsUnrelatedType = true
)
// make a bunch of unrelated changes in parallel
if useEventsAsUnrelatedType {
const unrelatedCount = 3000
var wg sync.WaitGroup
defer wg.Wait()
changeToMake := make(chan int, unrelatedCount*2)
changeMade := make(chan int, unrelatedCount*2)
go func() {
for i := 0; i < unrelatedCount; i++ {
changeToMake <- i
}
close(changeToMake)
}()
for i := 0; i < 50; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for {
i, ok := <-changeToMake
if !ok {
return
}
if _, err := client.Events(ns).Create(dummyEvent(i)); err != nil {
panic(fmt.Sprintf("couldn't make an event: %v", err))
}
changeMade <- i
}
}()
}
for i := 0; i < 2000; i++ {
<-changeMade
if (i+1)%50 == 0 {
log.Printf("%v: %v unrelated changes made", time.Now(), i+1)
}
}
}
if usePodsAsUnrelatedType {
const unrelatedCount = 3000
var wg sync.WaitGroup
defer wg.Wait()
changeToMake := make(chan int, unrelatedCount*2)
changeMade := make(chan int, unrelatedCount*2)
go func() {
for i := 0; i < unrelatedCount; i++ {
changeToMake <- i
}
close(changeToMake)
}()
for i := 0; i < 50; i++ {
wg.Add(1)
go func() {
defer wg.Done()
for {
i, ok := <-changeToMake
if !ok {
return
}
name := fmt.Sprintf("unrelated-%v", i)
_, err := client.Pods(ns).Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: name,
},
Spec: api.PodSpec{
Containers: []api.Container{{
Name: "nothing",
Image: "qingyuan/pause",
}},
},
})
if err != nil {
panic(fmt.Sprintf("couldn't make unrelated pod: %v", err))
}
changeMade <- i
}
}()
}
for i := 0; i < 2000; i++ {
<-changeMade
if (i+1)%50 == 0 {
log.Printf("%v: %v unrelated changes made", time.Now(), i+1)
}
}
}
// Now we still have changes being made in parallel, but at least 1000 have been made.
// Make some updates to send down the watches.
sentTimes := make(chan timePair, watcherCount*2)
for i := 0; i < watcherCount; i++ {
go func(i int) {
name := fmt.Sprintf("multi-watch-%v", i)
pod, err := client.Pods(ns).Get(name)
if err != nil {
panic(fmt.Sprintf("Couldn't get %v: %v", name, err))
}
pod.Spec.Containers[0].Image = "qingyuan/pause:1"
sentTimes <- timePair{time.Now(), name}
if _, err := client.Pods(ns).Update(pod); err != nil {
panic(fmt.Sprintf("Couldn't make %v: %v", name, err))
}
}(i)
}
sent := map[string]time.Time{}
for i := 0; i < watcherCount; i++ {
tp := <-sentTimes
sent[tp.name] = tp.t
}
log.Printf("all changes made")
dur := map[string]time.Duration{}
for i := 0; i < watcherCount; i++ {
tp := <-receivedTimes
delta := tp.t.Sub(sent[tp.name])
dur[tp.name] = delta
log.Printf("%v: %v", tp.name, delta)
}
log.Printf("all watches ended")
t.Errorf("durations: %v", dur)
}
func RunExec(f *cmdutil.Factory, cmd *cobra.Command, cmdIn io.Reader, cmdOut, cmdErr io.Writer, p *execParams, argsIn []string, re remoteExecutor) error {
podName, containerName, args, err := extractPodAndContainer(cmd, argsIn, p)
namespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
pod, err := client.Pods(namespace).Get(podName)
if err != nil {
return err
}
if pod.Status.Phase != api.PodRunning {
glog.Fatalf("Unable to execute command because pod %s is not running. Current status=%v", podName, pod.Status.Phase)
}
if len(containerName) == 0 {
glog.V(4).Infof("defaulting container name to %s", pod.Spec.Containers[0].Name)
containerName = pod.Spec.Containers[0].Name
}
var stdin io.Reader
tty := p.tty
if p.stdin {
stdin = cmdIn
if tty {
if file, ok := cmdIn.(*os.File); ok {
inFd := file.Fd()
if term.IsTerminal(inFd) {
oldState, err := term.SetRawTerminal(inFd)
if err != nil {
glog.Fatal(err)
}
// this handles a clean exit, where the command finished
defer term.RestoreTerminal(inFd, oldState)
// SIGINT is handled by term.SetRawTerminal (it runs a goroutine that listens
// for SIGINT and restores the terminal before exiting)
// this handles SIGTERM
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, syscall.SIGTERM)
go func() {
<-sigChan
term.RestoreTerminal(inFd, oldState)
os.Exit(0)
}()
} else {
glog.Warning("Stdin is not a terminal")
}
} else {
tty = false
glog.Warning("Unable to use a TTY")
}
}
}
config, err := f.ClientConfig()
if err != nil {
return err
}
req := client.RESTClient.Get().
Resource("pods").
Name(pod.Name).
Namespace(namespace).
SubResource("exec").
Param("container", containerName)
return re.Execute(req, config, args, stdin, cmdOut, cmdErr, tty)
}