func TestLabels(t *testing.T) {
var (
testPodUID = types.UID("test_pod_uid")
testVolumeName = "test_labels"
testNamespace = "test_metadata_namespace"
testName = "test_metadata_name"
)
labels := map[string]string{
"key1": "value1",
"key2": "value2"}
clientset := fake.NewSimpleClientset(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: testName,
Namespace: testNamespace,
Labels: labels,
},
})
pluginMgr := volume.VolumePluginMgr{}
rootDir, host := newTestHost(t, clientset)
defer os.RemoveAll(rootDir)
pluginMgr.InitPlugins(ProbeVolumePlugins(), host)
plugin, err := pluginMgr.FindPluginByName(downwardAPIPluginName)
defaultMode := int32(0644)
volumeSpec := &api.Volume{
Name: testVolumeName,
VolumeSource: api.VolumeSource{
DownwardAPI: &api.DownwardAPIVolumeSource{
DefaultMode: &defaultMode,
Items: []api.DownwardAPIVolumeFile{
{Path: "labels", FieldRef: &api.ObjectFieldSelector{
FieldPath: "metadata.labels"}}}},
},
}
if err != nil {
t.Errorf("Can't find the plugin by name")
}
pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: testPodUID, Labels: labels}}
mounter, err := plugin.NewMounter(volume.NewSpecFromVolume(volumeSpec), pod, volume.VolumeOptions{})
if err != nil {
t.Errorf("Failed to make a new Mounter: %v", err)
}
if mounter == nil {
t.Errorf("Got a nil Mounter")
}
volumePath := mounter.GetPath()
err = mounter.SetUp(nil)
if err != nil {
t.Errorf("Failed to setup volume: %v", err)
}
// downwardAPI volume should create its own empty wrapper path
podWrapperMetadataDir := fmt.Sprintf("%v/pods/%v/plugins/kubernetes.io~empty-dir/wrapped_%v", rootDir, testPodUID, testVolumeName)
if _, err := os.Stat(podWrapperMetadataDir); err != nil {
if os.IsNotExist(err) {
t.Errorf("SetUp() failed, empty-dir wrapper path was not created: %s", podWrapperMetadataDir)
} else {
t.Errorf("SetUp() failed: %v", err)
}
}
var data []byte
data, err = ioutil.ReadFile(path.Join(volumePath, "labels"))
if err != nil {
t.Errorf(err.Error())
}
if sortLines(string(data)) != sortLines(fieldpath.FormatMap(labels)) {
t.Errorf("Found `%s` expected %s", data, fieldpath.FormatMap(labels))
}
CleanEverything(plugin, testVolumeName, volumePath, testPodUID, t)
}
func TestWriteTwiceWithUpdate(t *testing.T) {
var (
testPodUID = types.UID("test_pod_uid")
testVolumeName = "test_write_twice_with_update"
testNamespace = "test_metadata_namespace"
testName = "test_metadata_name"
)
labels := map[string]string{
"key1": "value1",
"key2": "value2"}
clientset := fake.NewSimpleClientset(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: testName,
Namespace: testNamespace,
Labels: labels,
},
})
pluginMgr := volume.VolumePluginMgr{}
tmpDir, host := newTestHost(t, clientset)
defer os.RemoveAll(tmpDir)
pluginMgr.InitPlugins(ProbeVolumePlugins(), host)
plugin, err := pluginMgr.FindPluginByName(downwardAPIPluginName)
defaultMode := int32(0644)
volumeSpec := &api.Volume{
Name: testVolumeName,
VolumeSource: api.VolumeSource{
DownwardAPI: &api.DownwardAPIVolumeSource{
DefaultMode: &defaultMode,
Items: []api.DownwardAPIVolumeFile{
{Path: "labels", FieldRef: &api.ObjectFieldSelector{
FieldPath: "metadata.labels"}}}},
},
}
if err != nil {
t.Errorf("Can't find the plugin by name")
}
pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: testPodUID, Labels: labels}}
mounter, err := plugin.NewMounter(volume.NewSpecFromVolume(volumeSpec), pod, volume.VolumeOptions{})
if err != nil {
t.Errorf("Failed to make a new Mounter: %v", err)
}
if mounter == nil {
t.Errorf("Got a nil Mounter")
}
volumePath := mounter.GetPath()
err = mounter.SetUp(nil)
if err != nil {
t.Errorf("Failed to setup volume: %v", err)
}
var currentTarget string
if currentTarget, err = os.Readlink(path.Join(volumePath, downwardAPIDir)); err != nil {
t.Errorf("labels file should be a link... %s\n", err.Error())
}
var data []byte
data, err = ioutil.ReadFile(path.Join(volumePath, "labels"))
if err != nil {
t.Errorf(err.Error())
}
if sortLines(string(data)) != sortLines(fieldpath.FormatMap(labels)) {
t.Errorf("Found `%s` expected %s", data, fieldpath.FormatMap(labels))
}
newLabels := map[string]string{
"key1": "value1",
"key2": "value2",
"key3": "value3"}
// Now update the labels
pod.ObjectMeta.Labels = newLabels
err = mounter.SetUp(nil) // now re-run Setup
if err != nil {
t.Errorf("Failed to re-setup volume: %v", err)
}
// get the link of the link
var currentTarget2 string
if currentTarget2, err = os.Readlink(path.Join(volumePath, downwardAPIDir)); err != nil {
t.Errorf(".current should be a link... %s\n", err.Error())
}
if currentTarget2 == currentTarget {
t.Errorf("Got and update between the two Setup... Target link should NOT be the same\n")
}
data, err = ioutil.ReadFile(path.Join(volumePath, "labels"))
if err != nil {
t.Errorf(err.Error())
}
if sortLines(string(data)) != sortLines(fieldpath.FormatMap(newLabels)) {
t.Errorf("Found `%s` expected %s", data, fieldpath.FormatMap(newLabels))
}
CleanEverything(plugin, testVolumeName, volumePath, testPodUID, t)
}
func TestWriteWithUnixPathBadPath(t *testing.T) {
var (
testPodUID = types.UID("test_pod_uid")
testVolumeName = "test_write_with_unix_path"
testNamespace = "test_metadata_namespace"
testName = "test_metadata_name"
)
labels := map[string]string{
"key1": "value1",
"key2": "value2",
}
clientset := fake.NewSimpleClientset(&api.Pod{
ObjectMeta: api.ObjectMeta{
Name: testName,
Namespace: testNamespace,
Labels: labels,
},
})
pluginMgr := volume.VolumePluginMgr{}
tmpDir, host := newTestHost(t, clientset)
defer os.RemoveAll(tmpDir)
pluginMgr.InitPlugins(ProbeVolumePlugins(), host)
plugin, err := pluginMgr.FindPluginByName(downwardAPIPluginName)
if err != nil {
t.Errorf("Can't find the plugin by name")
}
defaultMode := int32(0644)
volumeSpec := &api.Volume{
Name: testVolumeName,
VolumeSource: api.VolumeSource{
DownwardAPI: &api.DownwardAPIVolumeSource{
DefaultMode: &defaultMode,
Items: []api.DownwardAPIVolumeFile{
{
Path: "this//labels",
FieldRef: &api.ObjectFieldSelector{
FieldPath: "metadata.labels",
},
},
},
},
},
}
pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: testPodUID, Labels: labels}}
mounter, err := plugin.NewMounter(volume.NewSpecFromVolume(volumeSpec), pod, volume.VolumeOptions{})
if err != nil {
t.Fatalf("Failed to make a new Mounter: %v", err)
} else if mounter == nil {
t.Fatalf("Got a nil Mounter")
}
volumePath := mounter.GetPath()
defer CleanEverything(plugin, testVolumeName, volumePath, testPodUID, t)
err = mounter.SetUp(nil)
if err != nil {
t.Fatalf("Failed to setup volume: %v", err)
}
data, err := ioutil.ReadFile(path.Join(volumePath, "this/labels"))
if err != nil {
t.Fatalf(err.Error())
}
if sortLines(string(data)) != sortLines(fieldpath.FormatMap(labels)) {
t.Errorf("Found `%s` expected %s", data, fieldpath.FormatMap(labels))
}
}
func TestAnnotations(t *testing.T) {
var (
testPodUID = types.UID("test_pod_uid")
testVolumeName = "test_annotations"
testNamespace = "test_metadata_namespace"
testName = "test_metadata_name"
)
annotations := map[string]string{
"a1": "value1",
"a2": "value2"}
defaultMode := int32(0644)
volumeSpec := &v1.Volume{
Name: testVolumeName,
VolumeSource: v1.VolumeSource{
DownwardAPI: &v1.DownwardAPIVolumeSource{
DefaultMode: &defaultMode,
Items: []v1.DownwardAPIVolumeFile{
{Path: "annotations", FieldRef: &v1.ObjectFieldSelector{
FieldPath: "metadata.annotations"}}}},
},
}
clientset := fake.NewSimpleClientset(&v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: testName,
Namespace: testNamespace,
Annotations: annotations,
},
})
pluginMgr := volume.VolumePluginMgr{}
tmpDir, host := newTestHost(t, clientset)
defer os.RemoveAll(tmpDir)
pluginMgr.InitPlugins(ProbeVolumePlugins(), host)
plugin, err := pluginMgr.FindPluginByName(downwardAPIPluginName)
if err != nil {
t.Errorf("Can't find the plugin by name")
}
pod := &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: testPodUID, Annotations: annotations}}
mounter, err := plugin.NewMounter(volume.NewSpecFromVolume(volumeSpec), pod, volume.VolumeOptions{})
if err != nil {
t.Errorf("Failed to make a new Mounter: %v", err)
}
if mounter == nil {
t.Errorf("Got a nil Mounter")
}
volumePath := mounter.GetPath()
err = mounter.SetUp(nil)
if err != nil {
t.Errorf("Failed to setup volume: %v", err)
}
var data []byte
data, err = ioutil.ReadFile(path.Join(volumePath, "annotations"))
if err != nil {
t.Errorf(err.Error())
}
if sortLines(string(data)) != sortLines(fieldpath.FormatMap(annotations)) {
t.Errorf("Found `%s` expected %s", data, fieldpath.FormatMap(annotations))
}
CleanEverything(plugin, testVolumeName, volumePath, testPodUID, t)
}