Add glide.yaml and vendor deps
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18880 changed files with 5166045 additions and 1 deletions
413
vendor/k8s.io/kubernetes/pkg/kubelet/kubelet_volumes_test.go
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vendored
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413
vendor/k8s.io/kubernetes/pkg/kubelet/kubelet_volumes_test.go
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/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubelet
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import (
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"fmt"
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"testing"
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"github.com/stretchr/testify/assert"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/client/testing/core"
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"k8s.io/kubernetes/pkg/runtime"
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"k8s.io/kubernetes/pkg/volume"
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volumetest "k8s.io/kubernetes/pkg/volume/testing"
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"k8s.io/kubernetes/pkg/volume/util/volumehelper"
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)
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func TestPodVolumesExist(t *testing.T) {
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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kubelet := testKubelet.kubelet
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pods := []*v1.Pod{
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{
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ObjectMeta: v1.ObjectMeta{
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Name: "pod1",
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UID: "pod1uid",
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device1",
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},
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},
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},
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},
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},
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},
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{
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ObjectMeta: v1.ObjectMeta{
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Name: "pod2",
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UID: "pod2uid",
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol2",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device2",
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},
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},
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},
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},
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},
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},
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{
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ObjectMeta: v1.ObjectMeta{
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Name: "pod3",
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UID: "pod3uid",
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol3",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device3",
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},
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},
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},
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},
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},
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},
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}
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stopCh := runVolumeManager(kubelet)
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defer func() {
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close(stopCh)
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}()
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kubelet.podManager.SetPods(pods)
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for _, pod := range pods {
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err := kubelet.volumeManager.WaitForAttachAndMount(pod)
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if err != nil {
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t.Errorf("Expected success: %v", err)
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}
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}
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for _, pod := range pods {
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podVolumesExist := kubelet.podVolumesExist(pod.UID)
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if !podVolumesExist {
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t.Errorf(
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"Expected to find volumes for pod %q, but podVolumesExist returned false",
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pod.UID)
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}
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}
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}
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func TestVolumeAttachAndMountControllerDisabled(t *testing.T) {
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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kubelet := testKubelet.kubelet
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pod := podWithUidNameNsSpec("12345678", "foo", "test", v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device",
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},
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},
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},
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},
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})
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stopCh := runVolumeManager(kubelet)
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defer func() {
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close(stopCh)
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}()
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kubelet.podManager.SetPods([]*v1.Pod{pod})
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err := kubelet.volumeManager.WaitForAttachAndMount(pod)
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assert.NoError(t, err)
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podVolumes := kubelet.volumeManager.GetMountedVolumesForPod(
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volumehelper.GetUniquePodName(pod))
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expectedPodVolumes := []string{"vol1"}
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assert.Len(t, podVolumes, len(expectedPodVolumes), "Volumes for pod %+v", pod)
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for _, name := range expectedPodVolumes {
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assert.Contains(t, podVolumes, name, "Volumes for pod %+v", pod)
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}
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assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")
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assert.NoError(t, volumetest.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyAttachCallCount(
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1 /* expectedAttachCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, testKubelet.volumePlugin))
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}
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func TestVolumeUnmountAndDetachControllerDisabled(t *testing.T) {
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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kubelet := testKubelet.kubelet
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pod := podWithUidNameNsSpec("12345678", "foo", "test", v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device",
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},
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},
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},
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},
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})
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stopCh := runVolumeManager(kubelet)
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defer func() {
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close(stopCh)
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}()
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// Add pod
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kubelet.podManager.SetPods([]*v1.Pod{pod})
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// Verify volumes attached
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err := kubelet.volumeManager.WaitForAttachAndMount(pod)
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assert.NoError(t, err)
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podVolumes := kubelet.volumeManager.GetMountedVolumesForPod(
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volumehelper.GetUniquePodName(pod))
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expectedPodVolumes := []string{"vol1"}
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assert.Len(t, podVolumes, len(expectedPodVolumes), "Volumes for pod %+v", pod)
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for _, name := range expectedPodVolumes {
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assert.Contains(t, podVolumes, name, "Volumes for pod %+v", pod)
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}
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assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")
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assert.NoError(t, volumetest.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyAttachCallCount(
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1 /* expectedAttachCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, testKubelet.volumePlugin))
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// Remove pod
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kubelet.podManager.SetPods([]*v1.Pod{})
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assert.NoError(t, waitForVolumeUnmount(kubelet.volumeManager, pod))
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// Verify volumes unmounted
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podVolumes = kubelet.volumeManager.GetMountedVolumesForPod(
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volumehelper.GetUniquePodName(pod))
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assert.Len(t, podVolumes, 0,
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"Expected volumes to be unmounted and detached. But some volumes are still mounted: %#v", podVolumes)
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assert.NoError(t, volumetest.VerifyTearDownCallCount(
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1 /* expectedTearDownCallCount */, testKubelet.volumePlugin))
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// Verify volumes detached and no longer reported as in use
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assert.NoError(t, waitForVolumeDetach(v1.UniqueVolumeName("fake/vol1"), kubelet.volumeManager))
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assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")
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assert.NoError(t, volumetest.VerifyDetachCallCount(
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1 /* expectedDetachCallCount */, testKubelet.volumePlugin))
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}
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func TestVolumeAttachAndMountControllerEnabled(t *testing.T) {
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testKubelet := newTestKubelet(t, true /* controllerAttachDetachEnabled */)
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kubelet := testKubelet.kubelet
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kubeClient := testKubelet.fakeKubeClient
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kubeClient.AddReactor("get", "nodes",
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func(action core.Action) (bool, runtime.Object, error) {
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return true, &v1.Node{
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ObjectMeta: v1.ObjectMeta{Name: testKubeletHostname},
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Status: v1.NodeStatus{
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VolumesAttached: []v1.AttachedVolume{
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{
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Name: "fake/vol1",
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DevicePath: "fake/path",
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},
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}},
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Spec: v1.NodeSpec{ExternalID: testKubeletHostname},
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}, nil
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})
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kubeClient.AddReactor("*", "*", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, fmt.Errorf("no reaction implemented for %s", action)
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})
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pod := podWithUidNameNsSpec("12345678", "foo", "test", v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device",
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},
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},
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},
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},
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})
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stopCh := runVolumeManager(kubelet)
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defer func() {
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close(stopCh)
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}()
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kubelet.podManager.SetPods([]*v1.Pod{pod})
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// Fake node status update
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go simulateVolumeInUseUpdate(
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v1.UniqueVolumeName("fake/vol1"),
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stopCh,
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kubelet.volumeManager)
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assert.NoError(t, kubelet.volumeManager.WaitForAttachAndMount(pod))
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podVolumes := kubelet.volumeManager.GetMountedVolumesForPod(
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volumehelper.GetUniquePodName(pod))
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expectedPodVolumes := []string{"vol1"}
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assert.Len(t, podVolumes, len(expectedPodVolumes), "Volumes for pod %+v", pod)
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for _, name := range expectedPodVolumes {
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assert.Contains(t, podVolumes, name, "Volumes for pod %+v", pod)
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}
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assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")
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assert.NoError(t, volumetest.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyZeroAttachCalls(testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, testKubelet.volumePlugin))
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}
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func TestVolumeUnmountAndDetachControllerEnabled(t *testing.T) {
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testKubelet := newTestKubelet(t, true /* controllerAttachDetachEnabled */)
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kubelet := testKubelet.kubelet
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kubeClient := testKubelet.fakeKubeClient
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kubeClient.AddReactor("get", "nodes",
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func(action core.Action) (bool, runtime.Object, error) {
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return true, &v1.Node{
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ObjectMeta: v1.ObjectMeta{Name: testKubeletHostname},
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Status: v1.NodeStatus{
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VolumesAttached: []v1.AttachedVolume{
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{
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Name: "fake/vol1",
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DevicePath: "fake/path",
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},
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}},
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Spec: v1.NodeSpec{ExternalID: testKubeletHostname},
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}, nil
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})
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kubeClient.AddReactor("*", "*", func(action core.Action) (bool, runtime.Object, error) {
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return true, nil, fmt.Errorf("no reaction implemented for %s", action)
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})
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pod := podWithUidNameNsSpec("12345678", "foo", "test", v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "fake-device",
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},
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},
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},
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},
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})
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stopCh := runVolumeManager(kubelet)
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defer func() {
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close(stopCh)
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}()
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// Add pod
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kubelet.podManager.SetPods([]*v1.Pod{pod})
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// Fake node status update
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go simulateVolumeInUseUpdate(
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v1.UniqueVolumeName("fake/vol1"),
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stopCh,
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kubelet.volumeManager)
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// Verify volumes attached
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assert.NoError(t, kubelet.volumeManager.WaitForAttachAndMount(pod))
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podVolumes := kubelet.volumeManager.GetMountedVolumesForPod(
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volumehelper.GetUniquePodName(pod))
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expectedPodVolumes := []string{"vol1"}
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assert.Len(t, podVolumes, len(expectedPodVolumes), "Volumes for pod %+v", pod)
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for _, name := range expectedPodVolumes {
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assert.Contains(t, podVolumes, name, "Volumes for pod %+v", pod)
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}
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assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")
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assert.NoError(t, volumetest.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyZeroAttachCalls(testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, testKubelet.volumePlugin))
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assert.NoError(t, volumetest.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, testKubelet.volumePlugin))
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// Remove pod
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kubelet.podManager.SetPods([]*v1.Pod{})
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assert.NoError(t, waitForVolumeUnmount(kubelet.volumeManager, pod))
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// Verify volumes unmounted
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podVolumes = kubelet.volumeManager.GetMountedVolumesForPod(
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volumehelper.GetUniquePodName(pod))
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assert.Len(t, podVolumes, 0,
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"Expected volumes to be unmounted and detached. But some volumes are still mounted: %#v", podVolumes)
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assert.NoError(t, volumetest.VerifyTearDownCallCount(
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1 /* expectedTearDownCallCount */, testKubelet.volumePlugin))
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// Verify volumes detached and no longer reported as in use
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assert.NoError(t, waitForVolumeDetach(v1.UniqueVolumeName("fake/vol1"), kubelet.volumeManager))
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assert.True(t, testKubelet.volumePlugin.GetNewAttacherCallCount() >= 1, "Expected plugin NewAttacher to be called at least once")
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assert.NoError(t, volumetest.VerifyZeroDetachCallCount(testKubelet.volumePlugin))
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}
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type stubVolume struct {
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path string
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volume.MetricsNil
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}
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func (f *stubVolume) GetPath() string {
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return f.path
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}
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func (f *stubVolume) GetAttributes() volume.Attributes {
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return volume.Attributes{}
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}
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func (f *stubVolume) CanMount() error {
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return nil
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}
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func (f *stubVolume) SetUp(fsGroup *int64) error {
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return nil
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}
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func (f *stubVolume) SetUpAt(dir string, fsGroup *int64) error {
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return nil
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}
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