// NewEventsSource initializes a new events source and starts a
// goroutine to watch/fetch event updates.
func NewEventsSource(client *kubeclient.Client) EventsSource {
// Buffered channel to send/receive events from
eventsChan := make(chan eventsUpdate, 1024)
errorChan := make(chan error)
glog.V(4).Infof("Starting event source")
go watchLoop(client.Events(kubeapi.NamespaceAll), eventsChan, errorChan)
glog.V(4).Infof("Finished starting event source")
return &eventsSourceImpl{client, eventsChan, errorChan}
}
func NewKubeEvents(client *kubeclient.Client, ec cache.EventsCache) api.Source {
// Buffered channel to send/receive events from
eventsChan := make(chan eventsUpdate, 1024)
errorChan := make(chan error)
es := &eventsSourceImpl{
Client: client,
eventsChannel: eventsChan,
errorChannel: errorChan,
ec: ec,
}
go es.watchLoop(client.Events(kubeapi.NamespaceAll), eventsChan, errorChan)
// TODO: Inject Namespace Store in here to get namespace IDs for events.
return es
}
func SetupEventSending(client *client.Client, hostname string) {
glog.Infof("Sending events to api server.")
record.StartRecording(client.Events(""),
api.EventSource{
Component: "kubelet",
Host: hostname,
})
}
func verifyResult(c *client.Client, podName string, ns string) {
allPods, err := c.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
expectNoError(err)
runningPods := 0
notRunningPods := make([]api.Pod, 0)
for _, pod := range allPods.Items {
if pod.Status.Phase == api.PodRunning {
runningPods += 1
} else {
notRunningPods = append(notRunningPods, pod)
}
}
schedEvents, err := c.Events(ns).List(
labels.Everything(),
fields.Set{
"involvedObject.kind": "Pod",
"involvedObject.name": podName,
"involvedObject.namespace": ns,
"source": "scheduler",
"reason": "failedScheduling",
}.AsSelector())
expectNoError(err)
printed := false
printOnce := func(msg string) string {
if !printed {
printed = true
return msg
} else {
return ""
}
}
Expect(len(notRunningPods)).To(Equal(1), printOnce(fmt.Sprintf("Pods found in the cluster: %#v", allPods)))
Expect(schedEvents.Items).ToNot(BeEmpty(), printOnce(fmt.Sprintf("Pods found in the cluster: %#v", allPods)))
Expect(notRunningPods[0].Name).To(Equal(podName), printOnce(fmt.Sprintf("Pods found in the cluster: %#v", allPods)))
}
allPods, err := c.Pods(api.NamespaceAll).List(labels.Everything(), fields.Everything())
expectNoError(err)
runningPods := 0
notRunningPods := make([]api.Pod, 0)
for _, pod := range allPods.Items {
if pod.Status.Phase == api.PodRunning {
runningPods += 1
} else {
notRunningPods = append(notRunningPods, pod)
}
}
schedEvents, err := c.Events(ns).List(
labels.Everything(),
fields.Set{
"involvedObject.kind": "Pod",
"involvedObject.name": "additional-pod",
"involvedObject.namespace": ns,
"source": "scheduler",
"reason": "failedScheduling",
}.AsSelector())
expectNoError(err)
Expect(runningPods).To(Equal(int(totalPodCapacity)))
Expect(len(notRunningPods)).To(Equal(1))
Expect(schedEvents.Items).ToNot(BeEmpty())
Expect(notRunningPods[0].Name).To(Equal("additional-pod"))
})
})
Expect(len(pods.Items)).To(Equal(1))
By("retrieving the pod")
podWithUid, err := podClient.Get(pod.Name)
if err != nil {
Failf("Failed to get pod: %v", err)
}
fmt.Printf("%+v\n", podWithUid)
// Check for scheduler event about the pod.
By("checking for scheduler event about the pod")
events, err := c.Events(api.NamespaceDefault).List(
labels.Everything(),
fields.Set{
"involvedObject.kind": "Pod",
"involvedObject.uid": string(podWithUid.UID),
"involvedObject.namespace": api.NamespaceDefault,
"source": "scheduler",
}.AsSelector(),
)
if err != nil {
Failf("Error while listing events: %v", err)
}
Expect(len(events.Items)).ToNot(BeZero(), "scheduler events from running pod")
fmt.Println("Saw scheduler event for our pod.")
// Check for kubelet event about the pod.
By("checking for kubelet event about the pod")
events, err = c.Events(api.NamespaceDefault).List(
labels.Everything(),
fields.Set{
// TestKubeletSendsEvent checks that kubelets and scheduler send events about pods scheduling and running.
func TestKubeletSendsEvent(c *client.Client) bool {
provider := os.Getenv("KUBERNETES_PROVIDER")
if len(provider) > 0 && provider != "gce" && provider != "gke" {
glog.Infof("skipping TestKubeletSendsEvent on cloud provider %s", provider)
return true
}
if provider == "" {
glog.Info("KUBERNETES_PROVIDER is unset; assuming \"gce\"")
}
podClient := c.Pods(api.NamespaceDefault)
pod := loadPodOrDie(assetPath("cmd", "e2e", "pod.json"))
value := strconv.Itoa(time.Now().Nanosecond())
pod.Labels["time"] = value
_, err := podClient.Create(pod)
if err != nil {
glog.Errorf("Failed to create pod: %v", err)
return false
}
defer podClient.Delete(pod.Name)
waitForPodRunning(c, pod.Name)
pods, err := podClient.List(labels.SelectorFromSet(labels.Set(map[string]string{"time": value})))
if len(pods.Items) != 1 {
glog.Errorf("Failed to find the correct pod")
return false
}
podWithUid, err := podClient.Get(pod.Name)
if err != nil {
glog.Errorf("Failed to get pod: %v", err)
return false
}
// Check for scheduler event about the pod.
glog.Infof("%+v", podWithUid)
events, err := c.Events(api.NamespaceDefault).List(
labels.Everything(),
labels.Set{
"involvedObject.kind": "Pod",
"involvedObject.uid": podWithUid.UID,
"involvedObject.namespace": api.NamespaceDefault,
"source": "scheduler",
}.AsSelector(),
)
if err != nil {
glog.Error("Error while listing events:", err)
return false
}
if len(events.Items) == 0 {
glog.Error("Didn't see any scheduler events even though pod was running.")
return false
}
glog.Info("Saw scheduler event for our pod.")
// Check for kubelet event about the pod.
events, err = c.Events(api.NamespaceDefault).List(
labels.Everything(),
labels.Set{
"involvedObject.uid": podWithUid.UID,
"involvedObject.kind": "BoundPod",
"involvedObject.namespace": api.NamespaceDefault,
"source": "kubelet",
}.AsSelector(),
)
if err != nil {
glog.Error("Error while listing events:", err)
return false
}
if len(events.Items) == 0 {
glog.Error("Didn't see any kubelet events even though pod was running.")
return false
}
glog.Info("Saw kubelet event for our pod.")
return true
}
name = "[Skipped] " + name
}
itArg := testArg
It(name, func() {
uuid := string(util.NewUUID())
totalPods := itArg.podsPerMinion * minionCount
nameStr := strconv.Itoa(totalPods) + "-" + uuid
ns = "e2e-density" + nameStr
RCName = "my-hostname-density" + nameStr
// Create a listener for events
events := make([](*api.Event), 0)
_, controller := framework.NewInformer(
&cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return c.Events(ns).List(labels.Everything(), fields.Everything())
},
WatchFunc: func(rv string) (watch.Interface, error) {
return c.Events(ns).Watch(labels.Everything(), fields.Everything(), rv)
},
},
&api.Event{},
time.Second*10,
framework.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
events = append(events, obj.(*api.Event))
},
},
)
stop := make(chan struct{})
go controller.Run(stop)
config := RCConfig{Client: c,
Image: "gcr.io/google_containers/pause:go",
Name: RCName,
Namespace: ns,
PollInterval: itArg.interval,
PodStatusFile: fileHndl,
Replicas: totalPods,
MaxContainerFailures: &MaxContainerFailures,
}
// Create a listener for events.
events := make([](*api.Event), 0)
_, controller := framework.NewInformer(
&cache.ListWatch{
ListFunc: func() (runtime.Object, error) {
return c.Events(ns).List(labels.Everything(), fields.Everything())
},
WatchFunc: func(rv string) (watch.Interface, error) {
return c.Events(ns).Watch(labels.Everything(), fields.Everything(), rv)
},
},
&api.Event{},
0,
framework.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
events = append(events, obj.(*api.Event))
},
},
)
stop := make(chan struct{})
go controller.Run(stop)
func SetupEventSending(client *client.Client, hostname string) {
glog.Infof("Sending events to api server.")
record.StartRecording(client.Events(""))
}