func createIdlePod(podName string, podClient *framework.PodClient) {
podClient.Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyNever,
Containers: []api.Container{
{
Image: ImageRegistry[pauseImage],
Name: podName,
},
},
},
})
}
func createIdlePod(podName string, podClient *framework.PodClient) {
podClient.Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyNever,
Containers: []api.Container{
{
Image: framework.GetPauseImageNameForHostArch(),
Name: podName,
},
},
},
})
}
BeforeEach(func() {
podClient = f.PodClient()
})
Context("when it is exec hook", func() {
var file string
testPodWithExecHook := func(podWithHook *v1.Pod) {
podCheckHook := getExecHookTestPod("pod-check-hook",
// Wait until the file is created.
[]string{"sh", "-c", fmt.Sprintf("while [ ! -e %s ]; do sleep 1; done", file)},
)
By("create the pod with lifecycle hook")
podClient.CreateSync(podWithHook)
if podWithHook.Spec.Containers[0].Lifecycle.PostStart != nil {
By("create the hook check pod")
podClient.Create(podCheckHook)
By("wait for the hook check pod to success")
podClient.WaitForSuccess(podCheckHook.Name, postStartWaitTimeout)
}
By("delete the pod with lifecycle hook")
podClient.DeleteSync(podWithHook.Name, v1.NewDeleteOptions(15), podWaitTimeout)
if podWithHook.Spec.Containers[0].Lifecycle.PreStop != nil {
By("create the hook check pod")
podClient.Create(podCheckHook)
By("wait for the prestop check pod to success")
podClient.WaitForSuccess(podCheckHook.Name, preStopWaitTimeout)
}
}
BeforeEach(func() {
file = "/tmp/test-" + string(uuid.NewUUID())
BeforeEach(func() {
podClient = f.PodClient()
})
It("should support sysctls", func() {
pod := testPod()
pod.Annotations[v1.SysctlsPodAnnotationKey] = v1.PodAnnotationsFromSysctls([]v1.Sysctl{
{
Name: "kernel.shm_rmid_forced",
Value: "1",
},
})
pod.Spec.Containers[0].Command = []string{"/bin/sysctl", "kernel.shm_rmid_forced"}
By("Creating a pod with the kernel.shm_rmid_forced sysctl")
pod = podClient.Create(pod)
By("Watching for error events or started pod")
// watch for events instead of termination of pod because the kubelet deletes
// failed pods without running containers. This would create a race as the pod
// might have already been deleted here.
ev, err := waitForPodErrorEventOrStarted(pod)
Expect(err).NotTo(HaveOccurred())
if ev != nil && ev.Reason == sysctl.UnsupportedReason {
framework.Skipf("No sysctl support in Docker <1.12")
}
Expect(ev).To(BeNil())
By("Waiting for pod completion")
err = f.WaitForPodNoLongerRunning(pod.Name)
Expect(err).NotTo(HaveOccurred())
probTestInitialDelaySeconds = 15
defaultObservationTimeout = time.Minute * 2
)
var _ = framework.KubeDescribe("Probing container", func() {
f := framework.NewDefaultFramework("container-probe")
var podClient *framework.PodClient
probe := webserverProbeBuilder{}
BeforeEach(func() {
podClient = f.PodClient()
})
It("with readiness probe should not be ready before initial delay and never restart [Conformance]", func() {
p := podClient.Create(makePodSpec(probe.withInitialDelay().build(), nil))
f.WaitForPodReady(p.Name)
p, err := podClient.Get(p.Name, metav1.GetOptions{})
framework.ExpectNoError(err)
isReady, err := testutils.PodRunningReady(p)
framework.ExpectNoError(err)
Expect(isReady).To(BeTrue(), "pod should be ready")
// We assume the pod became ready when the container became ready. This
// is true for a single container pod.
readyTime, err := getTransitionTimeForReadyCondition(p)
framework.ExpectNoError(err)
startedTime, err := getContainerStartedTime(p, probTestContainerName)
framework.ExpectNoError(err)
framework.Skipf("test skipped because eviction option is not set")
}
busyPodName = "to-evict" + string(uuid.NewUUID())
idlePodName = "idle" + string(uuid.NewUUID())
verifyPodName = "verify" + string(uuid.NewUUID())
createIdlePod(idlePodName, podClient)
podClient.Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: busyPodName,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyNever,
Containers: []api.Container{
{
Image: "gcr.io/google_containers/busybox:1.24",
Name: busyPodName,
// Filling the disk
Command: []string{"sh", "-c",
fmt.Sprintf("for NUM in `seq 1 1 100000`; do dd if=/dev/urandom of=%s.$NUM bs=50000000 count=10; sleep 0.5; done",
dummyFile)},
},
},
},
})
})
AfterEach(func() {
if !isImageSupported() || !evictionOptionIsSet() { // Skip the after each
return
}
podClient.DeleteSync(busyPodName, &api.DeleteOptions{}, podDisappearTimeout)
}, time.Minute, time.Second*4).Should(Equal("Hello World\n"))
})
})
Context("when scheduling a busybox command that always fails in a pod", func() {
var podName string
BeforeEach(func() {
podName = "bin-false" + string(uuid.NewUUID())
podClient.Create(&v1.Pod{
ObjectMeta: v1.ObjectMeta{
Name: podName,
},
Spec: v1.PodSpec{
// Don't restart the Pod since it is expected to exit
RestartPolicy: v1.RestartPolicyNever,
Containers: []v1.Container{
{
Image: "gcr.io/google_containers/busybox:1.24",
Name: podName,
Command: []string{"/bin/false"},
},
},
},
})
})
It("should have an error terminated reason", func() {
Eventually(func() error {
podData, err := podClient.Get(podName)
if err != nil {
return err
}
})
Describe("oom score adjusting", func() {
Context("when scheduling a busybox command that always fails in a pod", func() {
var podName string
BeforeEach(func() {
podName = "bin-false" + string(util.NewUUID())
podClient.Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: podName,
},
Spec: api.PodSpec{
// Don't restart the Pod since it is expected to exit
RestartPolicy: api.RestartPolicyNever,
Containers: []api.Container{
{
Image: ImageRegistry[busyBoxImage],
Name: podName,
Command: []string{"/bin/false"},
},
},
},
})
})
It("should have an error terminated reason", func() {
Eventually(func() error {
podData, err := podClient.Get(podName)
if err != nil {
return err
}
BeforeEach(func() {
if !evictionOptionIsSet() {
return
}
busyPodName = "to-evict" + string(uuid.NewUUID())
idlePodName = "idle" + string(uuid.NewUUID())
containersToCleanUp = make(map[string]bool)
podClient.Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: idlePodName,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyNever,
Containers: []api.Container{
{
Image: ImageRegistry[pauseImage],
Name: idlePodName,
},
},
},
})
podClient.Create(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: busyPodName,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyNever,
Containers: []api.Container{
{
Image: ImageRegistry[busyBoxImage],
Command: []string{"/bin/true"},
},
},
Containers: []v1.Container{
{
Name: "run1",
Image: "gcr.io/google_containers/busybox:1.24",
Command: []string{"/bin/true"},
},
},
},
}
if err := podutil.SetInitContainersAnnotations(pod); err != nil {
Expect(err).To(BeNil())
}
startedPod := podClient.Create(pod)
w, err := podClient.Watch(v1.SingleObject(startedPod.ObjectMeta))
Expect(err).NotTo(HaveOccurred(), "error watching a pod")
wr := watch.NewRecorder(w)
event, err := watch.Until(framework.PodStartTimeout, wr, conditions.PodCompleted)
Expect(err).To(BeNil())
framework.CheckInvariants(wr.Events(), framework.ContainerInitInvariant)
endPod := event.Object.(*v1.Pod)
if err := podutil.SetInitContainersAndStatuses(endPod); err != nil {
Expect(err).To(BeNil())
}
Expect(endPod.Status.Phase).To(Equal(v1.PodSucceeded))
_, init := v1.GetPodCondition(&endPod.Status, v1.PodInitialized)
Expect(init).NotTo(BeNil())
Expect(init.Status).To(Equal(v1.ConditionTrue))