Exemplo n.º 1
0
// restoreSpecsFromContainerLabels restores all information needed for killing a container. In some
// case we may not have pod and container spec when killing a container, e.g. pod is deleted during
// kubelet restart.
// To solve this problem, we've already written necessary information into container labels. Here we
// just need to retrieve them from container labels and restore the specs.
// TODO(random-liu): Add a node e2e test to test this behaviour.
// TODO(random-liu): Change the lifecycle handler to just accept information needed, so that we can
// just pass the needed function not create the fake object.
func (m *kubeGenericRuntimeManager) restoreSpecsFromContainerLabels(containerID kubecontainer.ContainerID) (*v1.Pod, *v1.Container, error) {
	var pod *v1.Pod
	var container *v1.Container
	s, err := m.runtimeService.ContainerStatus(containerID.ID)
	if err != nil {
		return nil, nil, err
	}

	l := getContainerInfoFromLabels(s.Labels)
	a := getContainerInfoFromAnnotations(s.Annotations)
	// Notice that the followings are not full spec. The container killing code should not use
	// un-restored fields.
	pod = &v1.Pod{
		ObjectMeta: v1.ObjectMeta{
			UID:                        l.PodUID,
			Name:                       l.PodName,
			Namespace:                  l.PodNamespace,
			DeletionGracePeriodSeconds: a.PodDeletionGracePeriod,
		},
		Spec: v1.PodSpec{
			TerminationGracePeriodSeconds: a.PodTerminationGracePeriod,
		},
	}
	container = &v1.Container{
		Name:  l.ContainerName,
		Ports: a.ContainerPorts,
		TerminationMessagePath: a.TerminationMessagePath,
	}
	if a.PreStopHandler != nil {
		container.Lifecycle = &v1.Lifecycle{
			PreStop: a.PreStopHandler,
		}
	}
	return pod, container, nil
}
Exemplo n.º 2
0
func podWithSecrets(ns, name string, toAttach secretsToAttach) *v1.Pod {
	pod := &v1.Pod{
		ObjectMeta: metav1.ObjectMeta{
			Namespace: ns,
			Name:      name,
		},
		Spec: v1.PodSpec{},
	}
	for _, name := range toAttach.imagePullSecretNames {
		pod.Spec.ImagePullSecrets = append(
			pod.Spec.ImagePullSecrets, v1.LocalObjectReference{Name: name})
	}
	for i, names := range toAttach.containerEnvSecretNames {
		container := v1.Container{
			Name: fmt.Sprintf("container-%d", i),
		}
		for _, name := range names {
			envSource := &v1.EnvVarSource{
				SecretKeyRef: &v1.SecretKeySelector{
					LocalObjectReference: v1.LocalObjectReference{
						Name: name,
					},
				},
			}
			container.Env = append(container.Env, v1.EnvVar{ValueFrom: envSource})
		}
		pod.Spec.Containers = append(pod.Spec.Containers, container)
	}
	return pod
}
Exemplo n.º 3
0
// ToAPIPod converts Pod to v1.Pod. Note that if a field in v1.Pod has no
// corresponding field in Pod, the field would not be populated.
func (p *Pod) ToAPIPod() *v1.Pod {
	var pod v1.Pod
	pod.UID = p.ID
	pod.Name = p.Name
	pod.Namespace = p.Namespace

	for _, c := range p.Containers {
		var container v1.Container
		container.Name = c.Name
		container.Image = c.Image
		pod.Spec.Containers = append(pod.Spec.Containers, container)
	}
	return &pod
}
Exemplo n.º 4
0
func deepCopy_v1_Container(in v1.Container, out *v1.Container, c *conversion.Cloner) error {
	out.Name = in.Name
	out.Image = in.Image
	if in.Command != nil {
		out.Command = make([]string, len(in.Command))
		for i := range in.Command {
			out.Command[i] = in.Command[i]
		}
	} else {
		out.Command = nil
	}
	if in.Args != nil {
		out.Args = make([]string, len(in.Args))
		for i := range in.Args {
			out.Args[i] = in.Args[i]
		}
	} else {
		out.Args = nil
	}
	out.WorkingDir = in.WorkingDir
	if in.Ports != nil {
		out.Ports = make([]v1.ContainerPort, len(in.Ports))
		for i := range in.Ports {
			if err := deepCopy_v1_ContainerPort(in.Ports[i], &out.Ports[i], c); err != nil {
				return err
			}
		}
	} else {
		out.Ports = nil
	}
	if in.Env != nil {
		out.Env = make([]v1.EnvVar, len(in.Env))
		for i := range in.Env {
			if err := deepCopy_v1_EnvVar(in.Env[i], &out.Env[i], c); err != nil {
				return err
			}
		}
	} else {
		out.Env = nil
	}
	if err := deepCopy_v1_ResourceRequirements(in.Resources, &out.Resources, c); err != nil {
		return err
	}
	if in.VolumeMounts != nil {
		out.VolumeMounts = make([]v1.VolumeMount, len(in.VolumeMounts))
		for i := range in.VolumeMounts {
			if err := deepCopy_v1_VolumeMount(in.VolumeMounts[i], &out.VolumeMounts[i], c); err != nil {
				return err
			}
		}
	} else {
		out.VolumeMounts = nil
	}
	if in.LivenessProbe != nil {
		out.LivenessProbe = new(v1.Probe)
		if err := deepCopy_v1_Probe(*in.LivenessProbe, out.LivenessProbe, c); err != nil {
			return err
		}
	} else {
		out.LivenessProbe = nil
	}
	if in.ReadinessProbe != nil {
		out.ReadinessProbe = new(v1.Probe)
		if err := deepCopy_v1_Probe(*in.ReadinessProbe, out.ReadinessProbe, c); err != nil {
			return err
		}
	} else {
		out.ReadinessProbe = nil
	}
	if in.Lifecycle != nil {
		out.Lifecycle = new(v1.Lifecycle)
		if err := deepCopy_v1_Lifecycle(*in.Lifecycle, out.Lifecycle, c); err != nil {
			return err
		}
	} else {
		out.Lifecycle = nil
	}
	out.TerminationMessagePath = in.TerminationMessagePath
	out.ImagePullPolicy = in.ImagePullPolicy
	if in.SecurityContext != nil {
		out.SecurityContext = new(v1.SecurityContext)
		if err := deepCopy_v1_SecurityContext(*in.SecurityContext, out.SecurityContext, c); err != nil {
			return err
		}
	} else {
		out.SecurityContext = nil
	}
	out.Stdin = in.Stdin
	out.TTY = in.TTY
	return nil
}
	pollInterval           = time.Second * 1
)

var _ = framework.KubeDescribe("Container Runtime Conformance Test", func() {
	f := framework.NewDefaultFramework("runtime-conformance")

	Describe("container runtime conformance blackbox test", func() {
		Context("when starting a container that exits", func() {
			It("it should run with the expected status [Conformance]", func() {
				restartCountVolumeName := "restart-count"
				restartCountVolumePath := "/restart-count"
				testContainer := v1.Container{
					Image: "gcr.io/google_containers/busybox:1.24",
					VolumeMounts: []v1.VolumeMount{
						{
							MountPath: restartCountVolumePath,
							Name:      restartCountVolumeName,
						},
					},
				}
				testVolumes := []v1.Volume{
					{
						Name: restartCountVolumeName,
						VolumeSource: v1.VolumeSource{
							EmptyDir: &v1.EmptyDirVolumeSource{Medium: v1.StorageMediumMemory},
						},
					},
				}
				testCases := []struct {
					Name          string
					RestartPolicy v1.RestartPolicy
Exemplo n.º 6
0
func TestProbe(t *testing.T) {
	prober := &prober{
		refManager: kubecontainer.NewRefManager(),
		recorder:   &record.FakeRecorder{},
	}
	containerID := kubecontainer.ContainerID{Type: "test", ID: "foobar"}

	execProbe := &v1.Probe{
		Handler: v1.Handler{
			Exec: &v1.ExecAction{},
		},
	}
	tests := []struct {
		probe          *v1.Probe
		execError      bool
		expectError    bool
		execResult     probe.Result
		expectedResult results.Result
	}{
		{ // No probe
			probe:          nil,
			expectedResult: results.Success,
		},
		{ // No handler
			probe:          &v1.Probe{},
			expectError:    true,
			expectedResult: results.Failure,
		},
		{ // Probe fails
			probe:          execProbe,
			execResult:     probe.Failure,
			expectedResult: results.Failure,
		},
		{ // Probe succeeds
			probe:          execProbe,
			execResult:     probe.Success,
			expectedResult: results.Success,
		},
		{ // Probe result is unknown
			probe:          execProbe,
			execResult:     probe.Unknown,
			expectedResult: results.Failure,
		},
		{ // Probe has an error
			probe:          execProbe,
			execError:      true,
			expectError:    true,
			execResult:     probe.Unknown,
			expectedResult: results.Failure,
		},
	}

	for i, test := range tests {
		for _, probeType := range [...]probeType{liveness, readiness} {
			testID := fmt.Sprintf("%d-%s", i, probeType)
			testContainer := v1.Container{}
			switch probeType {
			case liveness:
				testContainer.LivenessProbe = test.probe
			case readiness:
				testContainer.ReadinessProbe = test.probe
			}
			if test.execError {
				prober.exec = fakeExecProber{test.execResult, errors.New("exec error")}
			} else {
				prober.exec = fakeExecProber{test.execResult, nil}
			}

			result, err := prober.probe(probeType, &v1.Pod{}, v1.PodStatus{}, testContainer, containerID)
			if test.expectError && err == nil {
				t.Errorf("[%s] Expected probe error but no error was returned.", testID)
			}
			if !test.expectError && err != nil {
				t.Errorf("[%s] Didn't expect probe error but got: %v", testID, err)
			}
			if test.expectedResult != result {
				t.Errorf("[%s] Expected result to be %v but was %v", testID, test.expectedResult, result)
			}
		}
	}
}