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node_e2e: add a dbus restart test

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This commit is contained in:
Danielle Lancashire 2022-08-08 16:38:08 +00:00
parent 759785ea14
commit e8442054fe
1 changed files with 54 additions and 0 deletions
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54
test/e2e_node/restart_test.go
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@ -140,6 +140,60 @@ var _ = SIGDescribe("Restart [Serial] [Slow] [Disruptive]", func() {
})
})
ginkgo.Context("Dbus", func() {
ginkgo.It("should continue to run pods after a restart", func() {
// Allow dbus to be restarted on ubuntu
err := overlayDbusConfig()
framework.ExpectNoError(err)
defer func() {
err := restoreDbusConfig()
framework.ExpectNoError(err)
}()
preRestartPodCount := 2
ginkgo.By(fmt.Sprintf("creating %d RestartAlways pods on node", preRestartPodCount))
restartAlwaysPods := newTestPods(preRestartPodCount, false, imageutils.GetPauseImageName(), "restart-dbus-test")
createBatchPodWithRateControl(f, restartAlwaysPods, podCreationInterval)
defer deletePodsSync(f, restartAlwaysPods)
allPods := waitForPods(f, preRestartPodCount, startTimeout)
if len(allPods) < preRestartPodCount {
framework.Failf("Failed to run sufficient restartAlways pods, got %d but expected %d", len(allPods), preRestartPodCount)
}
ginkgo.By("restarting dbus and systemd", func() {
stdout, err := exec.Command("sudo", "systemctl", "reset-failed", "dbus").CombinedOutput()
framework.ExpectNoError(err, "Failed to reset dbus start-limit with systemctl: %v, %s", err, string(stdout))
stdout, err = exec.Command("sudo", "systemctl", "restart", "dbus").CombinedOutput()
framework.ExpectNoError(err, "Failed to restart dbus with systemctl: %v, %s", err, string(stdout))
stdout, err = exec.Command("sudo", "systemctl", "daemon-reexec").CombinedOutput()
framework.ExpectNoError(err, "Failed to restart systemd with systemctl: %v, %s", err, string(stdout))
})
ginkgo.By("verifying restartAlways pods stay running", func() {
for start := time.Now(); time.Since(start) < startTimeout; time.Sleep(10 * time.Second) {
postRestartRunningPods := waitForPods(f, preRestartPodCount, recoverTimeout)
if len(postRestartRunningPods) < preRestartPodCount {
framework.Failf("fewer pods are running after systemd restart, got %d but expected %d", len(postRestartRunningPods), preRestartPodCount)
}
}
})
ginkgo.By("verifying new pods can be started after a dbus restart")
postRestartPodCount := 2
postRestartPods := newTestPods(postRestartPodCount, false, imageutils.GetPauseImageName(), "restart-dbus-test")
createBatchPodWithRateControl(f, postRestartPods, podCreationInterval)
defer deletePodsSync(f, postRestartPods)
allPods = waitForPods(f, preRestartPodCount+postRestartPodCount, startTimeout)
if len(allPods) < preRestartPodCount+postRestartPodCount {
framework.Failf("Failed to run pods after restarting dbus, got %d but expected %d", len(allPods), preRestartPodCount+postRestartPodCount)
}
})
})
ginkgo.Context("Kubelet", func() {
ginkgo.It("should correctly account for terminated pods after restart", func() {
node := getLocalNode(f)