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Merge pull request #46665 from yujuhong/fail-clearly

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Automatic merge from submit-queue (batch tested with PRs 47113, 46665, 47189)

Improve the e2e node restart test

This commit includes the following two changes:
 * Move pre-test checks (pods/nodes ready) to BeforeEach() so that it's
   clear whether the test has run or not.
 * Dumping logs for unready pods.
This commit is contained in:
Kubernetes Submit Queue 2017-06-09 10:26:42 -07:00 committed by GitHub
commit 6b7e7f7797
1 changed files with 33 additions and 27 deletions
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60
test/e2e/restart.go
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@ -58,13 +58,37 @@ func filterIrrelevantPods(pods []*v1.Pod) []*v1.Pod {
var _ = framework.KubeDescribe("Restart [Disruptive]", func() {
f := framework.NewDefaultFramework("restart")
var ps *testutils.PodStore
var originalNodeNames []string
var originalPodNames []string
var numNodes int
var systemNamespace string
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 = testutils.NewPodStore(f.ClientSet, metav1.NamespaceSystem, labels.Everything(), fields.Everything())
numNodes = framework.TestContext.CloudConfig.NumNodes
systemNamespace = metav1.NamespaceSystem
By("ensuring all nodes are ready")
var err error
originalNodeNames, err = framework.CheckNodesReady(f.ClientSet, framework.NodeReadyInitialTimeout, numNodes)
Expect(err).NotTo(HaveOccurred())
framework.Logf("Got the following nodes before restart: %v", originalNodeNames)
By("ensuring all pods are running and ready")
allPods := ps.List()
pods := filterIrrelevantPods(allPods)
originalPodNames = make([]string, len(pods))
for i, p := range pods {
originalPodNames[i] = p.ObjectMeta.Name
}
if !framework.CheckPodsRunningReadyOrSucceeded(f.ClientSet, systemNamespace, originalPodNames, framework.PodReadyBeforeTimeout) {
printStatusAndLogsForNotReadyPods(f.ClientSet, systemNamespace, originalPodNames, pods)
framework.Failf("At least one pod wasn't running and ready or succeeded at test start.")
}
})
AfterEach(func() {
@ -74,41 +98,21 @@ var _ = framework.KubeDescribe("Restart [Disruptive]", func() {
})
It("should restart all nodes and ensure all nodes and pods recover", func() {
nn := framework.TestContext.CloudConfig.NumNodes
By("ensuring all nodes are ready")
nodeNamesBefore, err := framework.CheckNodesReady(f.ClientSet, framework.NodeReadyInitialTimeout, nn)
Expect(err).NotTo(HaveOccurred())
framework.Logf("Got the following nodes before restart: %v", nodeNamesBefore)
By("ensuring all pods are running and ready")
allPods := ps.List()
pods := filterIrrelevantPods(allPods)
podNamesBefore := make([]string, len(pods))
for i, p := range pods {
podNamesBefore[i] = p.ObjectMeta.Name
}
ns := metav1.NamespaceSystem
if !framework.CheckPodsRunningReadyOrSucceeded(f.ClientSet, ns, podNamesBefore, framework.PodReadyBeforeTimeout) {
framework.Failf("At least one pod wasn't running and ready or succeeded at test start.")
}
By("restarting all of the nodes")
err = restartNodes(f, nodeNamesBefore)
err := restartNodes(f, originalNodeNames)
Expect(err).NotTo(HaveOccurred())
By("ensuring all nodes are ready after the restart")
nodeNamesAfter, err := framework.CheckNodesReady(f.ClientSet, framework.RestartNodeReadyAgainTimeout, nn)
nodeNamesAfter, err := framework.CheckNodesReady(f.ClientSet, framework.RestartNodeReadyAgainTimeout, numNodes)
Expect(err).NotTo(HaveOccurred())
framework.Logf("Got the following nodes after restart: %v", nodeNamesAfter)
// Make sure that we have the same number of nodes. We're not checking
// that the names match because that's implementation specific.
By("ensuring the same number of nodes exist after the restart")
if len(nodeNamesBefore) != len(nodeNamesAfter) {
if len(originalNodeNames) != len(nodeNamesAfter) {
framework.Failf("Had %d nodes before nodes were restarted, but now only have %d",
len(nodeNamesBefore), len(nodeNamesAfter))
len(originalNodeNames), len(nodeNamesAfter))
}
// Make sure that we have the same number of pods. We're not checking
@ -116,10 +120,12 @@ var _ = framework.KubeDescribe("Restart [Disruptive]", func() {
// across node restarts.
By("ensuring the same number of pods are running and ready after restart")
podCheckStart := time.Now()
podNamesAfter, err := waitForNPods(ps, len(podNamesBefore), framework.RestartPodReadyAgainTimeout)
podNamesAfter, err := waitForNPods(ps, len(originalPodNames), framework.RestartPodReadyAgainTimeout)
Expect(err).NotTo(HaveOccurred())
remaining := framework.RestartPodReadyAgainTimeout - time.Since(podCheckStart)
if !framework.CheckPodsRunningReadyOrSucceeded(f.ClientSet, ns, podNamesAfter, remaining) {
if !framework.CheckPodsRunningReadyOrSucceeded(f.ClientSet, systemNamespace, podNamesAfter, remaining) {
pods := ps.List()
printStatusAndLogsForNotReadyPods(f.ClientSet, systemNamespace, podNamesAfter, pods)
framework.Failf("At least one pod wasn't running and ready after the restart.")
}
})