// getPodMatches returns a set of pod names on the given node that matches the
// podNamePrefix and namespace.
func getPodMatches(c clientset.Interface, nodeName string, podNamePrefix string, namespace string) sets.String {
matches := sets.NewString()
framework.Logf("Checking pods on node %v via /runningpods endpoint", nodeName)
runningPods, err := framework.GetKubeletPods(c, nodeName)
if err != nil {
framework.Logf("Error checking running pods on %v: %v", nodeName, err)
return matches
}
for _, pod := range runningPods.Items {
if pod.Namespace == namespace && strings.HasPrefix(pod.Name, podNamePrefix) {
matches.Insert(pod.Name)
}
}
return matches
}
// 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")
return false, nil
}
return true, nil
}
framework.Logf("no pod exists with the name we were looking for, assuming the termination request was observed and completed")