be7da5052f
This patch refactors pkg/util/mount to be more usable outside of Kubernetes. This is done by refactoring mount.Interface to only contain methods that are not K8s specific. Methods that are not relevant to basic mount activities but still have OS-specific implementations are now found in a mount.HostUtils interface.
1271 lines
40 KiB
Go
1271 lines
40 KiB
Go
/*
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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 reconciler
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import (
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"fmt"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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k8stypes "k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/wait"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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"k8s.io/client-go/kubernetes/fake"
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core "k8s.io/client-go/testing"
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"k8s.io/client-go/tools/record"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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"k8s.io/klog"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/pkg/kubelet/volumemanager/cache"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume"
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volumetesting "k8s.io/kubernetes/pkg/volume/testing"
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"k8s.io/kubernetes/pkg/volume/util"
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"k8s.io/kubernetes/pkg/volume/util/operationexecutor"
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)
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const (
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// reconcilerLoopSleepDuration is the amount of time the reconciler loop
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// waits between successive executions
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reconcilerLoopSleepDuration time.Duration = 1 * time.Nanosecond
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// waitForAttachTimeout is the maximum amount of time a
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// operationexecutor.Mount call will wait for a volume to be attached.
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waitForAttachTimeout time.Duration = 1 * time.Second
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nodeName k8stypes.NodeName = k8stypes.NodeName("mynodename")
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kubeletPodsDir string = "fake-dir"
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)
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func hasAddedPods() bool { return true }
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// Calls Run()
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// Verifies there are no calls to attach, detach, mount, unmount, etc.
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func Test_Run_Positive_DoNothing(t *testing.T) {
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// Arrange
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volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
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dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
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asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
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kubeClient := createTestClient()
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fakeRecorder := &record.FakeRecorder{}
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fakeHandler := volumetesting.NewBlockVolumePathHandler()
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oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
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kubeClient,
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volumePluginMgr,
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fakeRecorder,
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false, /* checkNodeCapabilitiesBeforeMount */
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fakeHandler,
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))
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reconciler := NewReconciler(
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kubeClient,
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false, /* controllerAttachDetachEnabled */
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reconcilerLoopSleepDuration,
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waitForAttachTimeout,
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nodeName,
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dsw,
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asw,
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hasAddedPods,
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oex,
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&mount.FakeMounter{},
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&mount.FakeHostUtil{},
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volumePluginMgr,
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kubeletPodsDir)
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// Act
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runReconciler(reconciler)
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// Assert
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assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroWaitForAttachCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroMountDeviceCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroSetUpCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
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}
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// Populates desiredStateOfWorld cache with one volume/pod.
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// Calls Run()
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// Verifies there is are attach/mount/etc calls and no detach/unmount calls.
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func Test_Run_Positive_VolumeAttachAndMount(t *testing.T) {
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// Arrange
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volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
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dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
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asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
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kubeClient := createTestClient()
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fakeRecorder := &record.FakeRecorder{}
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fakeHandler := volumetesting.NewBlockVolumePathHandler()
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oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
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kubeClient,
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volumePluginMgr,
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fakeRecorder,
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false, /* checkNodeCapabilitiesBeforeMount */
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fakeHandler))
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reconciler := NewReconciler(
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kubeClient,
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false, /* controllerAttachDetachEnabled */
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reconcilerLoopSleepDuration,
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waitForAttachTimeout,
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nodeName,
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dsw,
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asw,
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hasAddedPods,
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oex,
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&mount.FakeMounter{},
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&mount.FakeHostUtil{},
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volumePluginMgr,
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kubeletPodsDir)
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pod := &v1.Pod{
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ObjectMeta: metav1.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: "volume-name",
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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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volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
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podName := util.GetUniquePodName(pod)
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generatedVolumeName, err := dsw.AddPodToVolume(
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podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
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// Assert
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if err != nil {
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t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
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}
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// Act
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runReconciler(reconciler)
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waitForMount(t, fakePlugin, generatedVolumeName, asw)
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// Assert
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assert.NoError(t, volumetesting.VerifyAttachCallCount(
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1 /* expectedAttachCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
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}
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// Populates desiredStateOfWorld cache with one volume/pod.
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// Enables controllerAttachDetachEnabled.
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// Calls Run()
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// Verifies there is one mount call and no unmount calls.
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// Verifies there are no attach/detach calls.
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func Test_Run_Positive_VolumeMountControllerAttachEnabled(t *testing.T) {
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// Arrange
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volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
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dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
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asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
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kubeClient := createTestClient()
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fakeRecorder := &record.FakeRecorder{}
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fakeHandler := volumetesting.NewBlockVolumePathHandler()
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oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
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kubeClient,
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volumePluginMgr,
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fakeRecorder,
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false, /* checkNodeCapabilitiesBeforeMount */
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fakeHandler))
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reconciler := NewReconciler(
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kubeClient,
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true, /* controllerAttachDetachEnabled */
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reconcilerLoopSleepDuration,
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waitForAttachTimeout,
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nodeName,
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dsw,
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asw,
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hasAddedPods,
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oex,
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&mount.FakeMounter{},
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&mount.FakeHostUtil{},
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volumePluginMgr,
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kubeletPodsDir)
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pod := &v1.Pod{
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ObjectMeta: metav1.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: "volume-name",
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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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volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
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podName := util.GetUniquePodName(pod)
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generatedVolumeName, err := dsw.AddPodToVolume(
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podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
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dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{generatedVolumeName})
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// Assert
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if err != nil {
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t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
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}
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// Act
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runReconciler(reconciler)
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waitForMount(t, fakePlugin, generatedVolumeName, asw)
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// Assert
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assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
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assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
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}
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// Populates desiredStateOfWorld cache with one volume/pod.
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// Calls Run()
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// Verifies there is one attach/mount/etc call and no detach calls.
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// Deletes volume/pod from desired state of world.
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// Verifies detach/unmount calls are issued.
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func Test_Run_Positive_VolumeAttachMountUnmountDetach(t *testing.T) {
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// Arrange
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volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
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dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
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asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
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kubeClient := createTestClient()
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fakeRecorder := &record.FakeRecorder{}
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fakeHandler := volumetesting.NewBlockVolumePathHandler()
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oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
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kubeClient,
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volumePluginMgr,
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fakeRecorder,
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false, /* checkNodeCapabilitiesBeforeMount */
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fakeHandler))
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reconciler := NewReconciler(
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kubeClient,
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false, /* controllerAttachDetachEnabled */
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reconcilerLoopSleepDuration,
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waitForAttachTimeout,
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nodeName,
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dsw,
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asw,
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hasAddedPods,
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oex,
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&mount.FakeMounter{},
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&mount.FakeHostUtil{},
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volumePluginMgr,
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kubeletPodsDir)
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pod := &v1.Pod{
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ObjectMeta: metav1.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: "volume-name",
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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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volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
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podName := util.GetUniquePodName(pod)
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generatedVolumeName, err := dsw.AddPodToVolume(
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podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
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// Assert
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if err != nil {
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t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
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}
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// Act
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runReconciler(reconciler)
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waitForMount(t, fakePlugin, generatedVolumeName, asw)
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// Assert
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assert.NoError(t, volumetesting.VerifyAttachCallCount(
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1 /* expectedAttachCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
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1 /* expectedWaitForAttachCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyMountDeviceCallCount(
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1 /* expectedMountDeviceCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifySetUpCallCount(
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1 /* expectedSetUpCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
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assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
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// Act
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dsw.DeletePodFromVolume(podName, generatedVolumeName)
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waitForDetach(t, fakePlugin, generatedVolumeName, asw)
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// Assert
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assert.NoError(t, volumetesting.VerifyTearDownCallCount(
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1 /* expectedTearDownCallCount */, fakePlugin))
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assert.NoError(t, volumetesting.VerifyDetachCallCount(
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1 /* expectedDetachCallCount */, fakePlugin))
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}
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// Populates desiredStateOfWorld cache with one volume/pod.
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// Enables controllerAttachDetachEnabled.
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// Calls Run()
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// Verifies one mount call is made and no unmount calls.
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// Deletes volume/pod from desired state of world.
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// Verifies one unmount call is made.
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// Verifies there are no attach/detach calls made.
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func Test_Run_Positive_VolumeUnmountControllerAttachEnabled(t *testing.T) {
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// Arrange
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volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
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dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
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asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
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kubeClient := createTestClient()
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fakeRecorder := &record.FakeRecorder{}
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fakeHandler := volumetesting.NewBlockVolumePathHandler()
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oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
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kubeClient,
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volumePluginMgr,
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fakeRecorder,
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false, /* checkNodeCapabilitiesBeforeMount */
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fakeHandler))
|
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reconciler := NewReconciler(
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kubeClient,
|
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true, /* controllerAttachDetachEnabled */
|
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reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Volumes: []v1.Volume{
|
|
{
|
|
Name: "volume-name",
|
|
VolumeSource: v1.VolumeSource{
|
|
GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
|
|
PDName: "fake-device1",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
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volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
|
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podName := util.GetUniquePodName(pod)
|
|
generatedVolumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
|
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// Assert
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
|
|
// Act
|
|
runReconciler(reconciler)
|
|
|
|
dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{generatedVolumeName})
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
|
|
1 /* expectedWaitForAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyMountDeviceCallCount(
|
|
1 /* expectedMountDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifySetUpCallCount(
|
|
1 /* expectedSetUpCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroTearDownCallCount(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
|
|
// Act
|
|
dsw.DeletePodFromVolume(podName, generatedVolumeName)
|
|
waitForDetach(t, fakePlugin, generatedVolumeName, asw)
|
|
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyTearDownCallCount(
|
|
1 /* expectedTearDownCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
}
|
|
|
|
// Populates desiredStateOfWorld cache with one volume/pod.
|
|
// Calls Run()
|
|
// Verifies there are attach/get map paths/setupDevice calls and
|
|
// no detach/teardownDevice calls.
|
|
func Test_Run_Positive_VolumeAttachAndMap(t *testing.T) {
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
// Arrange
|
|
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
|
|
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
kubeClient := createTestClient()
|
|
fakeRecorder := &record.FakeRecorder{}
|
|
fakeHandler := volumetesting.NewBlockVolumePathHandler()
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
kubeClient,
|
|
volumePluginMgr,
|
|
fakeRecorder,
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
fakeHandler))
|
|
reconciler := NewReconciler(
|
|
kubeClient,
|
|
false, /* controllerAttachDetachEnabled */
|
|
reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{},
|
|
}
|
|
|
|
mode := v1.PersistentVolumeBlock
|
|
gcepv := &v1.PersistentVolume{
|
|
ObjectMeta: metav1.ObjectMeta{UID: "001", Name: "volume-name"},
|
|
Spec: v1.PersistentVolumeSpec{
|
|
Capacity: v1.ResourceList{v1.ResourceName(v1.ResourceStorage): resource.MustParse("10G")},
|
|
PersistentVolumeSource: v1.PersistentVolumeSource{GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{PDName: "fake-device1"}},
|
|
AccessModes: []v1.PersistentVolumeAccessMode{
|
|
v1.ReadWriteOnce,
|
|
v1.ReadOnlyMany,
|
|
},
|
|
VolumeMode: &mode,
|
|
},
|
|
}
|
|
|
|
volumeSpec := &volume.Spec{
|
|
PersistentVolume: gcepv,
|
|
}
|
|
podName := util.GetUniquePodName(pod)
|
|
generatedVolumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
|
|
// Assert
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
|
|
// Act
|
|
runReconciler(reconciler)
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyAttachCallCount(
|
|
1 /* expectedAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
|
|
1 /* expectedWaitForAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyGetMapDeviceCallCount(
|
|
1 /* expectedGetMapDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroTearDownDeviceCallCount(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
}
|
|
|
|
// Populates desiredStateOfWorld cache with one volume/pod.
|
|
// Enables controllerAttachDetachEnabled.
|
|
// Calls Run()
|
|
// Verifies there are two get map path calls, a setupDevice call
|
|
// and no teardownDevice call.
|
|
// Verifies there are no attach/detach calls.
|
|
func Test_Run_Positive_BlockVolumeMapControllerAttachEnabled(t *testing.T) {
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
// Arrange
|
|
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
|
|
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
kubeClient := createTestClient()
|
|
fakeRecorder := &record.FakeRecorder{}
|
|
fakeHandler := volumetesting.NewBlockVolumePathHandler()
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
kubeClient,
|
|
volumePluginMgr,
|
|
fakeRecorder,
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
fakeHandler))
|
|
reconciler := NewReconciler(
|
|
kubeClient,
|
|
true, /* controllerAttachDetachEnabled */
|
|
reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{},
|
|
}
|
|
|
|
mode := v1.PersistentVolumeBlock
|
|
gcepv := &v1.PersistentVolume{
|
|
ObjectMeta: metav1.ObjectMeta{UID: "001", Name: "volume-name"},
|
|
Spec: v1.PersistentVolumeSpec{
|
|
Capacity: v1.ResourceList{v1.ResourceName(v1.ResourceStorage): resource.MustParse("10G")},
|
|
PersistentVolumeSource: v1.PersistentVolumeSource{GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{PDName: "fake-device1"}},
|
|
AccessModes: []v1.PersistentVolumeAccessMode{
|
|
v1.ReadWriteOnce,
|
|
v1.ReadOnlyMany,
|
|
},
|
|
VolumeMode: &mode,
|
|
},
|
|
}
|
|
|
|
volumeSpec := &volume.Spec{
|
|
PersistentVolume: gcepv,
|
|
}
|
|
podName := util.GetUniquePodName(pod)
|
|
generatedVolumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{generatedVolumeName})
|
|
|
|
// Assert
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
|
|
// Act
|
|
runReconciler(reconciler)
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
|
|
1 /* expectedWaitForAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyGetMapDeviceCallCount(
|
|
1 /* expectedGetMapDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroTearDownDeviceCallCount(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
}
|
|
|
|
// Populates desiredStateOfWorld cache with one volume/pod.
|
|
// Calls Run()
|
|
// Verifies there is one attach call, two get map path calls,
|
|
// setupDevice call and no detach calls.
|
|
// Deletes volume/pod from desired state of world.
|
|
// Verifies one detach/teardownDevice calls are issued.
|
|
func Test_Run_Positive_BlockVolumeAttachMapUnmapDetach(t *testing.T) {
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
// Arrange
|
|
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
|
|
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
kubeClient := createTestClient()
|
|
fakeRecorder := &record.FakeRecorder{}
|
|
fakeHandler := volumetesting.NewBlockVolumePathHandler()
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
kubeClient,
|
|
volumePluginMgr,
|
|
fakeRecorder,
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
fakeHandler))
|
|
reconciler := NewReconciler(
|
|
kubeClient,
|
|
false, /* controllerAttachDetachEnabled */
|
|
reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{},
|
|
}
|
|
|
|
mode := v1.PersistentVolumeBlock
|
|
gcepv := &v1.PersistentVolume{
|
|
ObjectMeta: metav1.ObjectMeta{UID: "001", Name: "volume-name"},
|
|
Spec: v1.PersistentVolumeSpec{
|
|
Capacity: v1.ResourceList{v1.ResourceName(v1.ResourceStorage): resource.MustParse("10G")},
|
|
PersistentVolumeSource: v1.PersistentVolumeSource{GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{PDName: "fake-device1"}},
|
|
AccessModes: []v1.PersistentVolumeAccessMode{
|
|
v1.ReadWriteOnce,
|
|
v1.ReadOnlyMany,
|
|
},
|
|
VolumeMode: &mode,
|
|
},
|
|
}
|
|
|
|
volumeSpec := &volume.Spec{
|
|
PersistentVolume: gcepv,
|
|
}
|
|
podName := util.GetUniquePodName(pod)
|
|
generatedVolumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
|
|
// Assert
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
|
|
// Act
|
|
runReconciler(reconciler)
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyAttachCallCount(
|
|
1 /* expectedAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
|
|
1 /* expectedWaitForAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyGetMapDeviceCallCount(
|
|
1 /* expectedGetMapDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroTearDownDeviceCallCount(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
|
|
// Act
|
|
dsw.DeletePodFromVolume(podName, generatedVolumeName)
|
|
waitForDetach(t, fakePlugin, generatedVolumeName, asw)
|
|
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyTearDownDeviceCallCount(
|
|
1 /* expectedTearDownDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyDetachCallCount(
|
|
1 /* expectedDetachCallCount */, fakePlugin))
|
|
}
|
|
|
|
// Populates desiredStateOfWorld cache with one volume/pod.
|
|
// Enables controllerAttachDetachEnabled.
|
|
// Calls Run()
|
|
// Verifies two map path calls are made and no teardownDevice/detach calls.
|
|
// Deletes volume/pod from desired state of world.
|
|
// Verifies one teardownDevice call is made.
|
|
// Verifies there are no attach/detach calls made.
|
|
func Test_Run_Positive_VolumeUnmapControllerAttachEnabled(t *testing.T) {
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
// Arrange
|
|
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
|
|
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
kubeClient := createTestClient()
|
|
fakeRecorder := &record.FakeRecorder{}
|
|
fakeHandler := volumetesting.NewBlockVolumePathHandler()
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
kubeClient,
|
|
volumePluginMgr,
|
|
fakeRecorder,
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
fakeHandler))
|
|
reconciler := NewReconciler(
|
|
kubeClient,
|
|
true, /* controllerAttachDetachEnabled */
|
|
reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{},
|
|
}
|
|
|
|
mode := v1.PersistentVolumeBlock
|
|
gcepv := &v1.PersistentVolume{
|
|
ObjectMeta: metav1.ObjectMeta{UID: "001", Name: "volume-name"},
|
|
Spec: v1.PersistentVolumeSpec{
|
|
Capacity: v1.ResourceList{v1.ResourceName(v1.ResourceStorage): resource.MustParse("10G")},
|
|
PersistentVolumeSource: v1.PersistentVolumeSource{GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{PDName: "fake-device1"}},
|
|
AccessModes: []v1.PersistentVolumeAccessMode{
|
|
v1.ReadWriteOnce,
|
|
v1.ReadOnlyMany,
|
|
},
|
|
VolumeMode: &mode,
|
|
},
|
|
}
|
|
|
|
volumeSpec := &volume.Spec{
|
|
PersistentVolume: gcepv,
|
|
}
|
|
podName := util.GetUniquePodName(pod)
|
|
generatedVolumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
|
|
// Assert
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
|
|
// Act
|
|
runReconciler(reconciler)
|
|
|
|
dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{generatedVolumeName})
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyZeroAttachCalls(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyWaitForAttachCallCount(
|
|
1 /* expectedWaitForAttachCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyGetMapDeviceCallCount(
|
|
1 /* expectedGetMapDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroTearDownDeviceCallCount(fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
|
|
// Act
|
|
dsw.DeletePodFromVolume(podName, generatedVolumeName)
|
|
waitForDetach(t, fakePlugin, generatedVolumeName, asw)
|
|
|
|
// Assert
|
|
assert.NoError(t, volumetesting.VerifyTearDownDeviceCallCount(
|
|
1 /* expectedTearDownDeviceCallCount */, fakePlugin))
|
|
assert.NoError(t, volumetesting.VerifyZeroDetachCallCount(fakePlugin))
|
|
}
|
|
|
|
func Test_GenerateMapVolumeFunc_Plugin_Not_Found(t *testing.T) {
|
|
testCases := map[string]struct {
|
|
volumePlugins []volume.VolumePlugin
|
|
expectErr bool
|
|
expectedErrMsg string
|
|
}{
|
|
"volumePlugin is nil": {
|
|
volumePlugins: []volume.VolumePlugin{},
|
|
expectErr: true,
|
|
expectedErrMsg: "MapVolume.FindMapperPluginBySpec failed",
|
|
},
|
|
"blockVolumePlugin is nil": {
|
|
volumePlugins: volumetesting.NewFakeFileVolumePlugin(),
|
|
expectErr: true,
|
|
expectedErrMsg: "MapVolume.FindMapperPluginBySpec failed to find BlockVolumeMapper plugin. Volume plugin is nil.",
|
|
},
|
|
}
|
|
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
for name, tc := range testCases {
|
|
t.Run(name, func(t *testing.T) {
|
|
volumePluginMgr := &volume.VolumePluginMgr{}
|
|
volumePluginMgr.InitPlugins(tc.volumePlugins, nil, nil)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
nil, /* kubeClient */
|
|
volumePluginMgr,
|
|
nil, /* fakeRecorder */
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
nil))
|
|
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{},
|
|
}
|
|
volumeMode := v1.PersistentVolumeBlock
|
|
tmpSpec := &volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{VolumeMode: &volumeMode}}}
|
|
volumeToMount := operationexecutor.VolumeToMount{
|
|
Pod: pod,
|
|
VolumeSpec: tmpSpec}
|
|
err := oex.MountVolume(waitForAttachTimeout, volumeToMount, asw, false)
|
|
// Assert
|
|
if assert.Error(t, err) {
|
|
assert.Contains(t, err.Error(), tc.expectedErrMsg)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func Test_GenerateUnmapVolumeFunc_Plugin_Not_Found(t *testing.T) {
|
|
testCases := map[string]struct {
|
|
volumePlugins []volume.VolumePlugin
|
|
expectErr bool
|
|
expectedErrMsg string
|
|
}{
|
|
"volumePlugin is nil": {
|
|
volumePlugins: []volume.VolumePlugin{},
|
|
expectErr: true,
|
|
expectedErrMsg: "UnmapVolume.FindMapperPluginByName failed",
|
|
},
|
|
"blockVolumePlugin is nil": {
|
|
volumePlugins: volumetesting.NewFakeFileVolumePlugin(),
|
|
expectErr: true,
|
|
expectedErrMsg: "UnmapVolume.FindMapperPluginByName failed to find BlockVolumeMapper plugin. Volume plugin is nil.",
|
|
},
|
|
}
|
|
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
for name, tc := range testCases {
|
|
t.Run(name, func(t *testing.T) {
|
|
volumePluginMgr := &volume.VolumePluginMgr{}
|
|
volumePluginMgr.InitPlugins(tc.volumePlugins, nil, nil)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
nil, /* kubeClient */
|
|
volumePluginMgr,
|
|
nil, /* fakeRecorder */
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
nil))
|
|
volumeMode := v1.PersistentVolumeBlock
|
|
tmpSpec := &volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{VolumeMode: &volumeMode}}}
|
|
volumeToUnmount := operationexecutor.MountedVolume{
|
|
PluginName: "fake-file-plugin",
|
|
VolumeSpec: tmpSpec}
|
|
err := oex.UnmountVolume(volumeToUnmount, asw, "" /* podsDir */)
|
|
// Assert
|
|
if assert.Error(t, err) {
|
|
assert.Contains(t, err.Error(), tc.expectedErrMsg)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func Test_GenerateUnmapDeviceFunc_Plugin_Not_Found(t *testing.T) {
|
|
testCases := map[string]struct {
|
|
volumePlugins []volume.VolumePlugin
|
|
expectErr bool
|
|
expectedErrMsg string
|
|
}{
|
|
"volumePlugin is nil": {
|
|
volumePlugins: []volume.VolumePlugin{},
|
|
expectErr: true,
|
|
expectedErrMsg: "UnmapDevice.FindMapperPluginByName failed",
|
|
},
|
|
"blockVolumePlugin is nil": {
|
|
volumePlugins: volumetesting.NewFakeFileVolumePlugin(),
|
|
expectErr: true,
|
|
expectedErrMsg: "UnmapDevice.FindMapperPluginByName failed to find BlockVolumeMapper plugin. Volume plugin is nil.",
|
|
},
|
|
}
|
|
|
|
// Enable BlockVolume feature gate
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.BlockVolume, true)()
|
|
|
|
for name, tc := range testCases {
|
|
t.Run(name, func(t *testing.T) {
|
|
volumePluginMgr := &volume.VolumePluginMgr{}
|
|
volumePluginMgr.InitPlugins(tc.volumePlugins, nil, nil)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
nil, /* kubeClient */
|
|
volumePluginMgr,
|
|
nil, /* fakeRecorder */
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
nil))
|
|
var hostutil mount.HostUtils
|
|
volumeMode := v1.PersistentVolumeBlock
|
|
tmpSpec := &volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{VolumeMode: &volumeMode}}}
|
|
deviceToDetach := operationexecutor.AttachedVolume{VolumeSpec: tmpSpec, PluginName: "fake-file-plugin"}
|
|
err := oex.UnmountDevice(deviceToDetach, asw, hostutil)
|
|
// Assert
|
|
if assert.Error(t, err) {
|
|
assert.Contains(t, err.Error(), tc.expectedErrMsg)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// Populates desiredStateOfWorld cache with one volume/pod.
|
|
// Enables controllerAttachDetachEnabled.
|
|
// Calls Run()
|
|
// Wait for volume mounted.
|
|
// Mark volume as fsResizeRequired in ASW.
|
|
// Verifies volume's fsResizeRequired flag is cleared later.
|
|
func Test_Run_Positive_VolumeFSResizeControllerAttachEnabled(t *testing.T) {
|
|
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandInUsePersistentVolumes, true)()
|
|
|
|
fs := v1.PersistentVolumeFilesystem
|
|
pv := &v1.PersistentVolume{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pv",
|
|
UID: "pvuid",
|
|
},
|
|
Spec: v1.PersistentVolumeSpec{
|
|
ClaimRef: &v1.ObjectReference{Name: "pvc"},
|
|
VolumeMode: &fs,
|
|
},
|
|
}
|
|
pvc := &v1.PersistentVolumeClaim{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pvc",
|
|
UID: "pvcuid",
|
|
},
|
|
Spec: v1.PersistentVolumeClaimSpec{
|
|
VolumeName: "pv",
|
|
VolumeMode: &fs,
|
|
},
|
|
}
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Volumes: []v1.Volume{
|
|
{
|
|
Name: "volume-name",
|
|
VolumeSource: v1.VolumeSource{
|
|
PersistentVolumeClaim: &v1.PersistentVolumeClaimVolumeSource{
|
|
ClaimName: pvc.Name,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
|
|
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
kubeClient := createtestClientWithPVPVC(pv, pvc)
|
|
fakeRecorder := &record.FakeRecorder{}
|
|
fakeHandler := volumetesting.NewBlockVolumePathHandler()
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
kubeClient,
|
|
volumePluginMgr,
|
|
fakeRecorder,
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
fakeHandler))
|
|
|
|
reconciler := NewReconciler(
|
|
kubeClient,
|
|
true, /* controllerAttachDetachEnabled */
|
|
reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
|
|
volumeSpec := &volume.Spec{PersistentVolume: pv}
|
|
podName := util.GetUniquePodName(pod)
|
|
volumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
// Assert
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{volumeName})
|
|
|
|
// Start the reconciler to fill ASW.
|
|
stopChan, stoppedChan := make(chan struct{}), make(chan struct{})
|
|
go func() {
|
|
reconciler.Run(stopChan)
|
|
close(stoppedChan)
|
|
}()
|
|
waitForMount(t, fakePlugin, volumeName, asw)
|
|
// Stop the reconciler.
|
|
close(stopChan)
|
|
<-stoppedChan
|
|
|
|
// Mark volume as fsResizeRequired.
|
|
asw.MarkFSResizeRequired(volumeName, podName)
|
|
_, _, podExistErr := asw.PodExistsInVolume(podName, volumeName)
|
|
if !cache.IsFSResizeRequiredError(podExistErr) {
|
|
t.Fatalf("Volume should be marked as fsResizeRequired, but receive unexpected error: %v", podExistErr)
|
|
}
|
|
|
|
// Start the reconciler again, we hope reconciler will perform the
|
|
// resize operation and clear the fsResizeRequired flag for volume.
|
|
go reconciler.Run(wait.NeverStop)
|
|
|
|
waitErr := retryWithExponentialBackOff(500*time.Millisecond, func() (done bool, err error) {
|
|
mounted, _, err := asw.PodExistsInVolume(podName, volumeName)
|
|
return mounted && err == nil, nil
|
|
})
|
|
if waitErr != nil {
|
|
t.Fatal("Volume resize should succeeded")
|
|
}
|
|
}
|
|
|
|
func waitForMount(
|
|
t *testing.T,
|
|
fakePlugin *volumetesting.FakeVolumePlugin,
|
|
volumeName v1.UniqueVolumeName,
|
|
asw cache.ActualStateOfWorld) {
|
|
err := retryWithExponentialBackOff(
|
|
time.Duration(500*time.Millisecond),
|
|
func() (bool, error) {
|
|
mountedVolumes := asw.GetMountedVolumes()
|
|
for _, mountedVolume := range mountedVolumes {
|
|
if mountedVolume.VolumeName == volumeName {
|
|
return true, nil
|
|
}
|
|
}
|
|
|
|
return false, nil
|
|
},
|
|
)
|
|
|
|
if err != nil {
|
|
t.Fatalf("Timed out waiting for volume %q to be attached.", volumeName)
|
|
}
|
|
}
|
|
|
|
func waitForDetach(
|
|
t *testing.T,
|
|
fakePlugin *volumetesting.FakeVolumePlugin,
|
|
volumeName v1.UniqueVolumeName,
|
|
asw cache.ActualStateOfWorld) {
|
|
err := retryWithExponentialBackOff(
|
|
time.Duration(500*time.Millisecond),
|
|
func() (bool, error) {
|
|
if asw.VolumeExists(volumeName) {
|
|
return false, nil
|
|
}
|
|
|
|
return true, nil
|
|
},
|
|
)
|
|
|
|
if err != nil {
|
|
t.Fatalf("Timed out waiting for volume %q to be detached.", volumeName)
|
|
}
|
|
}
|
|
|
|
func retryWithExponentialBackOff(initialDuration time.Duration, fn wait.ConditionFunc) error {
|
|
backoff := wait.Backoff{
|
|
Duration: initialDuration,
|
|
Factor: 3,
|
|
Jitter: 0,
|
|
Steps: 6,
|
|
}
|
|
return wait.ExponentialBackoff(backoff, fn)
|
|
}
|
|
|
|
func createTestClient() *fake.Clientset {
|
|
fakeClient := &fake.Clientset{}
|
|
fakeClient.AddReactor("get", "nodes",
|
|
func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{Name: string(nodeName)},
|
|
Status: v1.NodeStatus{
|
|
VolumesAttached: []v1.AttachedVolume{
|
|
{
|
|
Name: "fake-plugin/fake-device1",
|
|
DevicePath: "/fake/path",
|
|
},
|
|
}},
|
|
}, nil
|
|
})
|
|
fakeClient.AddReactor("*", "*", func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, nil, fmt.Errorf("no reaction implemented for %s", action)
|
|
})
|
|
return fakeClient
|
|
}
|
|
|
|
func runReconciler(reconciler Reconciler) {
|
|
go reconciler.Run(wait.NeverStop)
|
|
}
|
|
|
|
func createtestClientWithPVPVC(pv *v1.PersistentVolume, pvc *v1.PersistentVolumeClaim) *fake.Clientset {
|
|
fakeClient := &fake.Clientset{}
|
|
fakeClient.AddReactor("get", "nodes",
|
|
func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, &v1.Node{
|
|
ObjectMeta: metav1.ObjectMeta{Name: string(nodeName)},
|
|
Status: v1.NodeStatus{
|
|
VolumesAttached: []v1.AttachedVolume{
|
|
{
|
|
Name: "fake-plugin/pv",
|
|
DevicePath: "fake/path",
|
|
},
|
|
}},
|
|
}, nil
|
|
})
|
|
fakeClient.AddReactor("get", "persistentvolumeclaims", func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, pvc, nil
|
|
})
|
|
fakeClient.AddReactor("get", "persistentvolumes", func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, pv, nil
|
|
})
|
|
fakeClient.AddReactor("*", "*", func(action core.Action) (bool, runtime.Object, error) {
|
|
return true, nil, fmt.Errorf("no reaction implemented for %s", action)
|
|
})
|
|
return fakeClient
|
|
}
|
|
|
|
func Test_Run_Positive_VolumeMountControllerAttachEnabledRace(t *testing.T) {
|
|
// Arrange
|
|
volumePluginMgr, fakePlugin := volumetesting.GetTestVolumePluginMgr(t)
|
|
|
|
dsw := cache.NewDesiredStateOfWorld(volumePluginMgr)
|
|
asw := cache.NewActualStateOfWorld(nodeName, volumePluginMgr)
|
|
kubeClient := createTestClient()
|
|
fakeRecorder := &record.FakeRecorder{}
|
|
fakeHandler := volumetesting.NewBlockVolumePathHandler()
|
|
oex := operationexecutor.NewOperationExecutor(operationexecutor.NewOperationGenerator(
|
|
kubeClient,
|
|
volumePluginMgr,
|
|
fakeRecorder,
|
|
false, /* checkNodeCapabilitiesBeforeMount */
|
|
fakeHandler))
|
|
reconciler := NewReconciler(
|
|
kubeClient,
|
|
true, /* controllerAttachDetachEnabled */
|
|
reconcilerLoopSleepDuration,
|
|
waitForAttachTimeout,
|
|
nodeName,
|
|
dsw,
|
|
asw,
|
|
hasAddedPods,
|
|
oex,
|
|
&mount.FakeMounter{},
|
|
&mount.FakeHostUtil{},
|
|
volumePluginMgr,
|
|
kubeletPodsDir)
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod1",
|
|
UID: "pod1uid",
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Volumes: []v1.Volume{
|
|
{
|
|
Name: "volume-name",
|
|
VolumeSource: v1.VolumeSource{
|
|
GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
|
|
PDName: "fake-device1",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
// Some steps are executes out of order in callbacks, follow the numbers.
|
|
|
|
// 1. Add a volume to DSW and wait until it's mounted
|
|
volumeSpec := &volume.Spec{Volume: &pod.Spec.Volumes[0]}
|
|
podName := util.GetUniquePodName(pod)
|
|
generatedVolumeName, err := dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{generatedVolumeName})
|
|
|
|
if err != nil {
|
|
t.Fatalf("AddPodToVolume failed. Expected: <no error> Actual: <%v>", err)
|
|
}
|
|
// Start the reconciler to fill ASW.
|
|
stopChan, stoppedChan := make(chan struct{}), make(chan struct{})
|
|
go func() {
|
|
reconciler.Run(stopChan)
|
|
close(stoppedChan)
|
|
}()
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
// Stop the reconciler.
|
|
close(stopChan)
|
|
<-stoppedChan
|
|
|
|
finished := make(chan interface{})
|
|
fakePlugin.UnmountDeviceHook = func(mountPath string) error {
|
|
// Act:
|
|
// 3. While a volume is being unmounted, add it back to the desired state of world
|
|
klog.Infof("UnmountDevice called")
|
|
generatedVolumeName, err = dsw.AddPodToVolume(
|
|
podName, pod, volumeSpec, volumeSpec.Name(), "" /* volumeGidValue */)
|
|
dsw.MarkVolumesReportedInUse([]v1.UniqueVolumeName{generatedVolumeName})
|
|
return nil
|
|
}
|
|
|
|
fakePlugin.WaitForAttachHook = func(spec *volume.Spec, devicePath string, pod *v1.Pod, spectimeout time.Duration) (string, error) {
|
|
// Assert
|
|
// 4. When the volume is mounted again, expect that UnmountDevice operation did not clear devicePath
|
|
if devicePath == "" {
|
|
t.Errorf("Expected WaitForAttach called with devicePath from Node.Status")
|
|
close(finished)
|
|
return "", fmt.Errorf("Expected devicePath from Node.Status")
|
|
}
|
|
close(finished)
|
|
return devicePath, nil
|
|
}
|
|
|
|
// Start the reconciler again.
|
|
go reconciler.Run(wait.NeverStop)
|
|
|
|
// 2. Delete the volume from DSW (and wait for callbacks)
|
|
dsw.DeletePodFromVolume(podName, generatedVolumeName)
|
|
|
|
<-finished
|
|
waitForMount(t, fakePlugin, generatedVolumeName, asw)
|
|
}
|