// testHostIP tests that a pod gets a host IP
func testHostIP(podClient *framework.PodClient, pod *api.Pod) {
By("creating pod")
defer podClient.Delete(pod.Name, api.NewDeleteOptions(0))
podClient.CreateSync(pod)
// Try to make sure we get a hostIP for each pod.
hostIPTimeout := 2 * time.Minute
t := time.Now()
for {
p, err := podClient.Get(pod.Name)
Expect(err).NotTo(HaveOccurred())
if p.Status.HostIP != "" {
framework.Logf("Pod %s has hostIP: %s", p.Name, p.Status.HostIP)
break
}
if time.Since(t) >= hostIPTimeout {
framework.Failf("Gave up waiting for hostIP of pod %s after %v seconds",
p.Name, time.Since(t).Seconds())
}
framework.Logf("Retrying to get the hostIP of pod %s", p.Name)
time.Sleep(5 * time.Second)
}
}
framework.Failf("Failed to observe pod creation: %v", event)
}
case <-time.After(framework.PodStartTimeout):
Fail("Timeout while waiting for pod creation")
}
// We need to wait for the pod to be running, otherwise the deletion
// may be carried out immediately rather than gracefully.
framework.ExpectNoError(f.WaitForPodRunning(pod.Name))
// save the running pod
pod, err = podClient.Get(pod.Name, metav1.GetOptions{})
Expect(err).NotTo(HaveOccurred(), "failed to GET scheduled pod")
framework.Logf("running pod: %#v", pod)
By("deleting the pod gracefully")
err = podClient.Delete(pod.Name, v1.NewDeleteOptions(30))
Expect(err).NotTo(HaveOccurred(), "failed to delete pod")
By("verifying the kubelet observed the termination notice")
Expect(wait.Poll(time.Second*5, time.Second*30, func() (bool, error) {
podList, err := framework.GetKubeletPods(f.ClientSet, pod.Spec.NodeName)
if err != nil {
framework.Logf("Unable to retrieve kubelet pods for node %v: %v", pod.Spec.NodeName, err)
return false, nil
}
for _, kubeletPod := range podList.Items {
if pod.Name != kubeletPod.Name {
continue
}
if kubeletPod.ObjectMeta.DeletionTimestamp == nil {
framework.Logf("deletion has not yet been observed")
if len(podData.Status.ContainerStatuses) != 1 {
return fmt.Errorf("expected only one container in the pod %q", podName)
}
contTerminatedState := podData.Status.ContainerStatuses[0].State.Terminated
if contTerminatedState == nil {
return fmt.Errorf("expected state to be terminated. Got pod status: %+v", podData.Status)
}
if contTerminatedState.Reason != "Error" {
return fmt.Errorf("expected terminated state reason to be error. Got %+v", contTerminatedState)
}
return nil
}, time.Minute, time.Second*4).Should(BeNil())
})
It("should be possible to delete", func() {
err := podClient.Delete(podName, &v1.DeleteOptions{})
Expect(err).To(BeNil(), fmt.Sprintf("Error deleting Pod %v", err))
})
})
Context("when scheduling a read only busybox container", func() {
podName := "busybox-readonly-fs" + string(uuid.NewUUID())
It("it should not write to root filesystem [Conformance]", func() {
isReadOnly := true
podClient.CreateSync(&v1.Pod{
ObjectMeta: v1.ObjectMeta{
Name: podName,
},
Spec: v1.PodSpec{
// Don't restart the Pod since it is expected to exit
RestartPolicy: v1.RestartPolicyNever,
Containers: []v1.Container{
f := framework.NewDefaultFramework("kubelet-eviction-manager")
var podClient *framework.PodClient
var c *client.Client
BeforeEach(func() {
podClient = f.PodClient()
c = f.Client
})
Describe("hard eviction test", func() {
Context("pod using the most disk space gets evicted when the node disk usage is above the eviction hard threshold", func() {
var busyPodName, idlePodName, verifyPodName string
var containersToCleanUp map[string]bool
AfterEach(func() {
podClient.Delete(busyPodName, &api.DeleteOptions{})
podClient.Delete(idlePodName, &api.DeleteOptions{})
podClient.Delete(verifyPodName, &api.DeleteOptions{})
for container := range containersToCleanUp {
// TODO: to be container implementation agnostic
cmd := exec.Command("docker", "rm", "-f", strings.Trim(container, dockertools.DockerPrefix))
cmd.Run()
}
})
BeforeEach(func() {
if !isImageSupported() || !evictionOptionIsSet() {
return
}
busyPodName = "to-evict" + string(uuid.NewUUID())
f.TestContainerOutput("downward API volume plugin", pod, 0, []string{
fmt.Sprintf("%s\n", podName),
})
})
It("should update labels on modification [Conformance]", func() {
labels := map[string]string{}
labels["key1"] = "value1"
labels["key2"] = "value2"
podName := "labelsupdate" + string(uuid.NewUUID())
pod := downwardAPIVolumePodForUpdateTest(podName, labels, map[string]string{}, "/etc/labels")
containerName := "client-container"
defer func() {
By("Deleting the pod")
podClient.Delete(pod.Name, api.NewDeleteOptions(0))
}()
By("Creating the pod")
podClient.CreateSync(pod)
Eventually(func() (string, error) {
return framework.GetPodLogs(f.Client, f.Namespace.Name, podName, containerName)
},
podLogTimeout, framework.Poll).Should(ContainSubstring("key1=\"value1\"\n"))
//modify labels
podClient.Update(podName, func(pod *api.Pod) {
pod.Labels["key3"] = "value3"
})
Eventually(func() (string, error) {
options := api.ListOptions{LabelSelector: selector}
pods, err := podClient.List(options)
Expect(err).NotTo(HaveOccurred(), "failed to query for pods")
Expect(len(pods.Items)).To(Equal(0))
options = api.ListOptions{
LabelSelector: selector,
ResourceVersion: pods.ListMeta.ResourceVersion,
}
w, err := podClient.Watch(options)
Expect(err).NotTo(HaveOccurred(), "failed to set up watch")
By("submitting the pod to kubernetes")
// We call defer here in case there is a problem with
// the test so we can ensure that we clean up after
// ourselves
defer podClient.Delete(pod.Name, api.NewDeleteOptions(0))
podClient.Create(pod)
By("verifying the pod is in kubernetes")
selector = labels.SelectorFromSet(labels.Set(map[string]string{"time": value}))
options = api.ListOptions{LabelSelector: selector}
pods, err = podClient.List(options)
Expect(err).NotTo(HaveOccurred(), "failed to query for pods")
Expect(len(pods.Items)).To(Equal(1))
By("verifying pod creation was observed")
select {
case event, _ := <-w.ResultChan():
if event.Type != watch.Added {
framework.Failf("Failed to observe pod creation: %v", event)
}
{
Name: "init2",
Image: "gcr.io/google_containers/busybox:1.24",
Command: []string{"/bin/true"},
},
},
Containers: []api.Container{
{
Name: "run1",
Image: "gcr.io/google_containers/busybox:1.24",
Command: []string{"/bin/true"},
},
},
},
}
defer podClient.Delete(pod.Name, nil)
startedPod := podClient.Create(pod)
w, err := podClient.Watch(api.SingleObject(startedPod.ObjectMeta))
Expect(err).NotTo(HaveOccurred(), "error watching a pod")
wr := watch.NewRecorder(w)
event, err := watch.Until(framework.PodStartTimeout, wr, client.PodCompleted)
Expect(err).To(BeNil())
framework.CheckInvariants(wr.Events(), framework.ContainerInitInvariant)
endPod := event.Object.(*api.Pod)
Expect(endPod.Status.Phase).To(Equal(api.PodSucceeded))
_, init := api.GetPodCondition(&endPod.Status, api.PodInitialized)
Expect(init).NotTo(BeNil())
Expect(init.Status).To(Equal(api.ConditionTrue))
Expect(len(endPod.Status.InitContainerStatuses)).To(Equal(2))