// waitForNPods tries to list pods using c until it finds expect of them,
// returning their names if it can do so before timeout.
func waitForNPods(ps *framework.PodStore, expect int, timeout time.Duration) ([]string, error) {
// Loop until we find expect pods or timeout is passed.
var pods []*api.Pod
var errLast error
found := wait.Poll(framework.Poll, timeout, func() (bool, error) {
allPods := ps.List()
pods := filterIrrelevantPods(allPods)
if len(pods) != expect {
errLast = fmt.Errorf("expected to find %d pods but found only %d", expect, len(pods))
framework.Logf("Error getting pods: %v", errLast)
return false, nil
}
return true, nil
}) == nil
// Extract the names of all found pods.
podNames := make([]string, len(pods))
for i, p := range pods {
podNames[i] = p.ObjectMeta.Name
}
if !found {
return podNames, fmt.Errorf("couldn't find %d pods within %v; last error: %v",
expect, timeout, errLast)
}
return podNames, nil
}
// How often to framework.Poll the statues of a restart.
restartPoll = 20 * time.Second
// How long a node is allowed to become "Ready" after it is restarted before
// the test is considered failed.
restartNodeReadyAgainTimeout = 5 * time.Minute
// How long a pod is allowed to become "running" and "ready" after a node
// restart before test is considered failed.
restartPodReadyAgainTimeout = 5 * time.Minute
)
var _ = framework.KubeDescribe("Restart [Disruptive]", func() {
f := framework.NewDefaultFramework("restart")
var ps *framework.PodStore
BeforeEach(func() {
// This test requires the ability to restart all nodes, so the provider
// check must be identical to that call.
framework.SkipUnlessProviderIs("gce", "gke")
ps = framework.NewPodStore(f.Client, api.NamespaceSystem, labels.Everything(), fields.Everything())
})
AfterEach(func() {
if ps != nil {
ps.Stop()
}
})
for _, p := range pods {
if isRestartNeverMirrorPod(p) {
// Mirror pods with restart policy == Never will not get
// recreated if they are deleted after the pods have
// terminated. For now, we discount such pods.
// https://github.com/kubernetes/kubernetes/issues/34003
continue
}
results = append(results, p)
}
return results
}
var _ = framework.KubeDescribe("Restart [Disruptive]", func() {
f := framework.NewDefaultFramework("restart")
var ps *framework.PodStore
BeforeEach(func() {
// This test requires the ability to restart all nodes, so the provider
// check must be identical to that call.
framework.SkipUnlessProviderIs("gce", "gke")
ps = framework.NewPodStore(f.Client, api.NamespaceSystem, labels.Everything(), fields.Everything())
})
AfterEach(func() {
if ps != nil {
ps.Stop()
}
})