func launchWebserverPod(f *e2e.Framework, podName string, nodeName string) (ip string) {
containerName := fmt.Sprintf("%s-container", podName)
port := 8080
pod := &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
},
Spec: api.PodSpec{
Containers: []api.Container{
{
Name: containerName,
Image: "gcr.io/google_containers/porter:59ad46ed2c56ba50fa7f1dc176c07c37",
Env: []api.EnvVar{{Name: fmt.Sprintf("SERVE_PORT_%d", port), Value: "foo"}},
Ports: []api.ContainerPort{{ContainerPort: port}},
},
},
NodeName: nodeName,
RestartPolicy: api.RestartPolicyNever,
},
}
podClient := f.Client.Pods(f.Namespace.Name)
_, err := podClient.Create(pod)
expectNoError(err)
expectNoError(f.WaitForPodRunning(podName))
createdPod, err := podClient.Get(podName)
expectNoError(err)
ip = fmt.Sprintf("%s:%d", createdPod.Status.PodIP, port)
e2e.Logf("Target pod IP:port is %s", ip)
return
}
func validateDNSResults(f *e2e.Framework, pod *api.Pod, fileNames sets.String, expect int) {
By("submitting the pod to kubernetes")
podClient := f.Client.Pods(f.Namespace.Name)
defer func() {
By("deleting the pod")
defer GinkgoRecover()
podClient.Delete(pod.Name, api.NewDeleteOptions(0))
}()
if _, err := podClient.Create(pod); err != nil {
e2e.Failf("Failed to create %s pod: %v", pod.Name, err)
}
Expect(f.WaitForPodRunning(pod.Name)).To(BeNil())
Expect(wait.Poll(2*time.Second, 5*time.Minute, func() (bool, error) {
pod, err := podClient.Get(pod.Name)
if err != nil {
return false, err
}
switch pod.Status.Phase {
case api.PodSucceeded:
return true, nil
case api.PodFailed:
return false, fmt.Errorf("pod failed")
default:
return false, nil
}
})).To(BeNil())
By("retrieving the pod logs")
r, err := podClient.GetLogs(pod.Name, &api.PodLogOptions{Container: "querier"}).Stream()
if err != nil {
e2e.Failf("Failed to get pod logs %s: %v", pod.Name, err)
}
out, err := ioutil.ReadAll(r)
if err != nil {
e2e.Failf("Failed to read pod logs %s: %v", pod.Name, err)
}
// Try to find results for each expected name.
By("looking for the results for each expected name from probiers")
if err := assertLinesExist(fileNames, expect, bytes.NewBuffer(out)); err != nil {
e2e.Logf("Got results from pod:\n%s", out)
e2e.Failf("Unexpected results: %v", err)
}
e2e.Logf("DNS probes using %s succeeded\n", pod.Name)
}