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Commit e3f8f64c authored by David Zhu's avatar David Zhu
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refactored mount, attach, resize operation's so that all failures generate…

refactored mount, attach, resize operation's so that all failures generate events and event generation is more consistent. refactored operation generator and operation executor to use more general generated functions for operations, completions, and events.
parent a5d2a025
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Showing with 432 additions and 311 deletions
pkg/controller/volume/persistentvolume/pv_controller.go
View file @ e3f8f64c
......@@ -1250,7 +1250,7 @@ func (ctrl *PersistentVolumeController) doDeleteVolume(volume *v1.PersistentVolu
opComplete := util.OperationCompleteHook(plugin.GetPluginName(), "volume_delete")
err = deleter.Delete()
opComplete(err)
opComplete(&err)
if err != nil {
// Deleter failed
return false, err
......@@ -1373,7 +1373,7 @@ func (ctrl *PersistentVolumeController) provisionClaimOperation(claimObj interfa
opComplete := util.OperationCompleteHook(plugin.GetPluginName(), "volume_provision")
volume, err = provisioner.Provision()
opComplete(err)
opComplete(&err)
if err != nil {
strerr := fmt.Sprintf("Failed to provision volume with StorageClass %q: %v", storageClass.Name, err)
glog.V(2).Infof("failed to provision volume for claim %q with StorageClass %q: %v", claimToClaimKey(claim), storageClass.Name, err)
......
pkg/volume/util/metrics.go
View file @ e3f8f64c
......@@ -49,12 +49,12 @@ func registerMetrics() {
}
// OperationCompleteHook returns a hook to call when an operation is completed
func OperationCompleteHook(plugin, operationName string) func(error) {
func OperationCompleteHook(plugin, operationName string) func(*error) {
requestTime := time.Now()
opComplete := func(err error) {
opComplete := func(err *error) {
timeTaken := time.Since(requestTime).Seconds()
// Create metric with operation name and plugin name
if err != nil {
if *err != nil {
storageOperationErrorMetric.WithLabelValues(plugin, operationName).Inc()
} else {
storageOperationMetric.WithLabelValues(plugin, operationName).Observe(timeTaken)
......
pkg/volume/util/nestedpendingoperations/nestedpendingoperations.go
View file @ e3f8f64c
......@@ -55,7 +55,7 @@ type NestedPendingOperations interface {
// concatenation of volumeName and podName is removed from the list of
// executing operations allowing a new operation to be started with the
// volumeName without error.
Run(volumeName v1.UniqueVolumeName, podName types.UniquePodName, operationFunc func() error, operationCompleteFunc func(error)) error
Run(volumeName v1.UniqueVolumeName, podName types.UniquePodName, generatedOperations types.GeneratedOperations) error
// Wait blocks until all operations are completed. This is typically
// necessary during tests - the test should wait until all operations finish
......@@ -94,8 +94,7 @@ type operation struct {
func (grm *nestedPendingOperations) Run(
volumeName v1.UniqueVolumeName,
podName types.UniquePodName,
operationFunc func() error,
operationCompleteFunc func(error)) error {
generatedOperations types.GeneratedOperations) error {
grm.lock.Lock()
defer grm.lock.Unlock()
opExists, previousOpIndex := grm.isOperationExists(volumeName, podName)
......@@ -128,15 +127,20 @@ func (grm *nestedPendingOperations) Run(
})
}
go func() (err error) {
go func() (eventErr, detailedErr error) {
// Handle unhandled panics (very unlikely)
defer k8sRuntime.HandleCrash()
// Handle completion of and error, if any, from operationFunc()
defer grm.operationComplete(volumeName, podName, &err)
defer operationCompleteFunc(err)
defer grm.operationComplete(volumeName, podName, &detailedErr)
if generatedOperations.CompleteFunc != nil {
defer generatedOperations.CompleteFunc(&detailedErr)
}
if generatedOperations.EventRecorderFunc != nil {
defer generatedOperations.EventRecorderFunc(&eventErr)
}
// Handle panic, if any, from operationFunc()
defer k8sRuntime.RecoverFromPanic(&err)
return operationFunc()
defer k8sRuntime.RecoverFromPanic(&detailedErr)
return generatedOperations.OperationFunc()
}()
return nil
......
pkg/volume/util/nestedpendingoperations/nestedpendingoperations_test.go
View file @ e3f8f64c
......@@ -47,10 +47,10 @@ func Test_NewGoRoutineMap_Positive_SingleOp(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(false /* exponentialBackOffOnError */)
volumeName := v1.UniqueVolumeName("volume-name")
operation := func() error { return nil }
operation := func() (error, error) { return nil, nil }
// Act
err := grm.Run(volumeName, "" /* operationSubName */, operation, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation})
// Assert
if err != nil {
......@@ -63,11 +63,11 @@ func Test_NewGoRoutineMap_Positive_TwoOps(t *testing.T) {
grm := NewNestedPendingOperations(false /* exponentialBackOffOnError */)
volume1Name := v1.UniqueVolumeName("volume1-name")
volume2Name := v1.UniqueVolumeName("volume2-name")
operation := func() error { return nil }
operation := func() (error, error) { return nil, nil }
// Act
err1 := grm.Run(volume1Name, "" /* operationSubName */, operation, func(error) {})
err2 := grm.Run(volume2Name, "" /* operationSubName */, operation, func(error) {})
err1 := grm.Run(volume1Name, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation})
err2 := grm.Run(volume2Name, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation})
// Assert
if err1 != nil {
......@@ -85,11 +85,11 @@ func Test_NewGoRoutineMap_Positive_TwoSubOps(t *testing.T) {
volumeName := v1.UniqueVolumeName("volume-name")
operation1PodName := types.UniquePodName("operation1-podname")
operation2PodName := types.UniquePodName("operation2-podname")
operation := func() error { return nil }
operation := func() (error, error) { return nil, nil }
// Act
err1 := grm.Run(volumeName, operation1PodName, operation, func(error) {})
err2 := grm.Run(volumeName, operation2PodName, operation, func(error) {})
err1 := grm.Run(volumeName, operation1PodName, types.GeneratedOperations{OperationFunc: operation})
err2 := grm.Run(volumeName, operation2PodName, types.GeneratedOperations{OperationFunc: operation})
// Assert
if err1 != nil {
......@@ -105,10 +105,10 @@ func Test_NewGoRoutineMap_Positive_SingleOpWithExpBackoff(t *testing.T) {
// Arrange
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := v1.UniqueVolumeName("volume-name")
operation := func() error { return nil }
operation := func() (error, error) { return nil, nil }
// Act
err := grm.Run(volumeName, "" /* operationSubName */, operation, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation})
// Assert
if err != nil {
......@@ -122,7 +122,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstCompletes(t *testing.T) {
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateCallbackFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
......@@ -133,7 +133,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstCompletes(t *testing.T) {
err2 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
......@@ -154,7 +154,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstCompletesWithExpBackoff(t *
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateCallbackFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
......@@ -165,7 +165,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstCompletesWithExpBackoff(t *
err2 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
......@@ -185,7 +185,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstPanics(t *testing.T) {
grm := NewNestedPendingOperations(false /* exponentialBackOffOnError */)
volumeName := v1.UniqueVolumeName("volume-name")
operation1 := generatePanicFunc()
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
......@@ -195,7 +195,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstPanics(t *testing.T) {
err2 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
......@@ -215,7 +215,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstPanicsWithExpBackoff(t *tes
grm := NewNestedPendingOperations(true /* exponentialBackOffOnError */)
volumeName := v1.UniqueVolumeName("volume-name")
operation1 := generatePanicFunc()
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
......@@ -225,7 +225,7 @@ func Test_NewGoRoutineMap_Positive_SecondOpAfterFirstPanicsWithExpBackoff(t *tes
err2 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeLong), // Longer duration to accommodate for backoff
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
......@@ -246,14 +246,14 @@ func Test_NewGoRoutineMap_Negative_SecondOpBeforeFirstCompletes(t *testing.T) {
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err2 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
// Assert
if err2 == nil {
......@@ -271,14 +271,14 @@ func Test_NewGoRoutineMap_Negative_SecondSubOpBeforeFirstCompletes2(t *testing.T
operationPodName := types.UniquePodName("operation-podname")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, operationPodName, operation1, func(error) {})
err1 := grm.Run(volumeName, operationPodName, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, operationPodName, operation2, func(error) {})
err2 := grm.Run(volumeName, operationPodName, types.GeneratedOperations{OperationFunc: operation2})
// Assert
if err2 == nil {
......@@ -296,14 +296,14 @@ func Test_NewGoRoutineMap_Negative_SecondSubOpBeforeFirstCompletes(t *testing.T)
operationPodName := types.UniquePodName("operation-podname")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, operationPodName, operation1, func(error) {})
err1 := grm.Run(volumeName, operationPodName, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, operationPodName, operation2, func(error) {})
err2 := grm.Run(volumeName, operationPodName, types.GeneratedOperations{OperationFunc: operation2})
// Assert
if err2 == nil {
......@@ -320,14 +320,14 @@ func Test_NewGoRoutineMap_Negative_SecondOpBeforeFirstCompletesWithExpBackoff(t
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
operation2 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err2 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
// Assert
if err2 == nil {
......@@ -344,7 +344,7 @@ func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletes(t *testing.T) {
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
......@@ -352,7 +352,7 @@ func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletes(t *testing.T) {
operation3 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err2 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
// Assert
if err2 == nil {
......@@ -367,7 +367,7 @@ func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletes(t *testing.T) {
err3 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation3, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation3})
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
......@@ -388,7 +388,7 @@ func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletesWithExpBackoff(t *t
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err1 := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err1 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err1 != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err1)
}
......@@ -396,7 +396,7 @@ func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletesWithExpBackoff(t *t
operation3 := generateNoopFunc()
// Act
err2 := grm.Run(volumeName, "" /* operationSubName */, operation2, func(error) {})
err2 := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation2})
// Assert
if err2 == nil {
......@@ -411,7 +411,7 @@ func Test_NewGoRoutineMap_Positive_ThirdOpAfterFirstCompletesWithExpBackoff(t *t
err3 := retryWithExponentialBackOff(
time.Duration(initialOperationWaitTimeShort),
func() (bool, error) {
err := grm.Run(volumeName, "" /* operationSubName */, operation3, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation3})
if err != nil {
t.Logf("Warning: NewGoRoutine failed with %v. Will retry.", err)
return false, nil
......@@ -471,7 +471,7 @@ func Test_NewGoRoutineMap_Positive_Wait(t *testing.T) {
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err)
}
......@@ -500,7 +500,7 @@ func Test_NewGoRoutineMap_Positive_WaitWithExpBackoff(t *testing.T) {
volumeName := v1.UniqueVolumeName("volume-name")
operation1DoneCh := make(chan interface{}, 0 /* bufferSize */)
operation1 := generateWaitFunc(operation1DoneCh)
err := grm.Run(volumeName, "" /* operationSubName */, operation1, func(error) {})
err := grm.Run(volumeName, "" /* operationSubName */, types.GeneratedOperations{OperationFunc: operation1})
if err != nil {
t.Fatalf("NewGoRoutine failed. Expected: <no error> Actual: <%v>", err)
}
......@@ -522,28 +522,28 @@ func Test_NewGoRoutineMap_Positive_WaitWithExpBackoff(t *testing.T) {
}
}
func generateCallbackFunc(done chan<- interface{}) func() error {
return func() error {
func generateCallbackFunc(done chan<- interface{}) func() (error, error) {
return func() (error, error) {
done <- true
return nil
return nil, nil
}
}
func generateWaitFunc(done <-chan interface{}) func() error {
return func() error {
func generateWaitFunc(done <-chan interface{}) func() (error, error) {
return func() (error, error) {
<-done
return nil
return nil, nil
}
}
func generatePanicFunc() func() error {
return func() error {
func generatePanicFunc() func() (error, error) {
return func() (error, error) {
panic("testing panic")
}
}
func generateNoopFunc() func() error {
return func() error { return nil }
func generateNoopFunc() func() (error, error) {
return func() (error, error) { return nil, nil }
}
func retryWithExponentialBackOff(initialDuration time.Duration, fn wait.ConditionFunc) error {
......
pkg/volume/util/operationexecutor/operation_executor.go
View file @ e3f8f64c
......@@ -571,30 +571,28 @@ func (oe *operationExecutor) IsOperationPending(volumeName v1.UniqueVolumeName,
func (oe *operationExecutor) AttachVolume(
volumeToAttach VolumeToAttach,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) error {
attachFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateAttachVolumeFunc(volumeToAttach, actualStateOfWorld)
if err != nil {
return err
}
opCompleteFunc := util.OperationCompleteHook(plugin, "volume_attach")
return oe.pendingOperations.Run(
volumeToAttach.VolumeName, "" /* podName */, attachFunc, opCompleteFunc)
volumeToAttach.VolumeName, "" /* podName */, generatedOperations)
}
func (oe *operationExecutor) DetachVolume(
volumeToDetach AttachedVolume,
verifySafeToDetach bool,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) error {
detachFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateDetachVolumeFunc(volumeToDetach, verifySafeToDetach, actualStateOfWorld)
if err != nil {
return err
}
opCompleteFunc := util.OperationCompleteHook(plugin, "volume_detach")
return oe.pendingOperations.Run(
volumeToDetach.VolumeName, "" /* podName */, detachFunc, opCompleteFunc)
volumeToDetach.VolumeName, "" /* podName */, generatedOperations)
}
func (oe *operationExecutor) VerifyVolumesAreAttached(
......@@ -661,7 +659,7 @@ func (oe *operationExecutor) VerifyVolumesAreAttached(
}
for pluginName, pluginNodeVolumes := range bulkVerifyPluginsByNode {
bulkVerifyVolumeFunc, err := oe.operationGenerator.GenerateBulkVolumeVerifyFunc(
generatedOperations, err := oe.operationGenerator.GenerateBulkVolumeVerifyFunc(
pluginNodeVolumes,
pluginName,
volumeSpecMapByPlugin[pluginName],
......@@ -670,10 +668,9 @@ func (oe *operationExecutor) VerifyVolumesAreAttached(
glog.Errorf("BulkVerifyVolumes.GenerateBulkVolumeVerifyFunc error bulk verifying volumes for plugin %q with %v", pluginName, err)
}
opCompleteFunc := util.OperationCompleteHook(pluginName, "verify_volumes_are_attached")
// Ugly hack to ensure - we don't do parallel bulk polling of same volume plugin
uniquePluginName := v1.UniqueVolumeName(pluginName)
err = oe.pendingOperations.Run(uniquePluginName, "" /* Pod Name */, bulkVerifyVolumeFunc, opCompleteFunc)
err = oe.pendingOperations.Run(uniquePluginName, "" /* Pod Name */, generatedOperations)
if err != nil {
glog.Errorf("BulkVerifyVolumes.Run Error bulk volume verification for plugin %q with %v", pluginName, err)
}
......@@ -684,15 +681,14 @@ func (oe *operationExecutor) VerifyVolumesAreAttachedPerNode(
attachedVolumes []AttachedVolume,
nodeName types.NodeName,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) error {
volumesAreAttachedFunc, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateVolumesAreAttachedFunc(attachedVolumes, nodeName, actualStateOfWorld)
if err != nil {
return err
}
opCompleteFunc := util.OperationCompleteHook("<n/a>", "verify_volumes_are_attached_per_node")
// Give an empty UniqueVolumeName so that this operation could be executed concurrently.
return oe.pendingOperations.Run("" /* volumeName */, "" /* podName */, volumesAreAttachedFunc, opCompleteFunc)
return oe.pendingOperations.Run("" /* volumeName */, "" /* podName */, generatedOperations)
}
func (oe *operationExecutor) MountVolume(
......@@ -700,7 +696,7 @@ func (oe *operationExecutor) MountVolume(
volumeToMount VolumeToMount,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
isRemount bool) error {
mountFunc, plugin, err := oe.operationGenerator.GenerateMountVolumeFunc(
generatedOperations, err := oe.operationGenerator.GenerateMountVolumeFunc(
waitForAttachTimeout, volumeToMount, actualStateOfWorld, isRemount)
if err != nil {
return err
......@@ -715,16 +711,15 @@ func (oe *operationExecutor) MountVolume(
}
// TODO mount_device
opCompleteFunc := util.OperationCompleteHook(plugin, "volume_mount")
return oe.pendingOperations.Run(
volumeToMount.VolumeName, podName, mountFunc, opCompleteFunc)
volumeToMount.VolumeName, podName, generatedOperations)
}
func (oe *operationExecutor) UnmountVolume(
volumeToUnmount MountedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater) error {
unmountFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateUnmountVolumeFunc(volumeToUnmount, actualStateOfWorld)
if err != nil {
return err
......@@ -734,42 +729,40 @@ func (oe *operationExecutor) UnmountVolume(
// same volume in parallel
podName := volumetypes.UniquePodName(volumeToUnmount.PodUID)
opCompleteFunc := util.OperationCompleteHook(plugin, "volume_unmount")
return oe.pendingOperations.Run(
volumeToUnmount.VolumeName, podName, unmountFunc, opCompleteFunc)
volumeToUnmount.VolumeName, podName, generatedOperations)
}
func (oe *operationExecutor) UnmountDevice(
deviceToDetach AttachedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
mounter mount.Interface) error {
unmountDeviceFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateUnmountDeviceFunc(deviceToDetach, actualStateOfWorld, mounter)
if err != nil {
return err
}
opCompleteFunc := util.OperationCompleteHook(plugin, "unmount_device")
return oe.pendingOperations.Run(
deviceToDetach.VolumeName, "" /* podName */, unmountDeviceFunc, opCompleteFunc)
deviceToDetach.VolumeName, "" /* podName */, generatedOperations)
}
func (oe *operationExecutor) ExpandVolume(pvcWithResizeRequest *expandcache.PVCWithResizeRequest, resizeMap expandcache.VolumeResizeMap) error {
expandFunc, pluginName, err := oe.operationGenerator.GenerateExpandVolumeFunc(pvcWithResizeRequest, resizeMap)
generatedOperations, err := oe.operationGenerator.GenerateExpandVolumeFunc(pvcWithResizeRequest, resizeMap)
if err != nil {
return err
}
uniqueVolumeKey := v1.UniqueVolumeName(pvcWithResizeRequest.UniquePVCKey())
opCompleteFunc := util.OperationCompleteHook(pluginName, "expand_volume")
return oe.pendingOperations.Run(uniqueVolumeKey, "", expandFunc, opCompleteFunc)
return oe.pendingOperations.Run(uniqueVolumeKey, "", generatedOperations)
}
func (oe *operationExecutor) MapVolume(
waitForAttachTimeout time.Duration,
volumeToMount VolumeToMount,
actualStateOfWorld ActualStateOfWorldMounterUpdater) error {
mapFunc, plugin, err := oe.operationGenerator.GenerateMapVolumeFunc(
generatedOperations, err := oe.operationGenerator.GenerateMapVolumeFunc(
waitForAttachTimeout, volumeToMount, actualStateOfWorld)
if err != nil {
return err
......@@ -785,15 +778,14 @@ func (oe *operationExecutor) MapVolume(
podName = volumehelper.GetUniquePodName(volumeToMount.Pod)
}
opCompleteFunc := util.OperationCompleteHook(plugin, "map_volume")
return oe.pendingOperations.Run(
volumeToMount.VolumeName, podName, mapFunc, opCompleteFunc)
volumeToMount.VolumeName, podName, generatedOperations)
}
func (oe *operationExecutor) UnmapVolume(
volumeToUnmount MountedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater) error {
unmapFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateUnmapVolumeFunc(volumeToUnmount, actualStateOfWorld)
if err != nil {
return err
......@@ -803,16 +795,15 @@ func (oe *operationExecutor) UnmapVolume(
// same volume in parallel
podName := volumetypes.UniquePodName(volumeToUnmount.PodUID)
opCompleteFunc := util.OperationCompleteHook(plugin, "unmap_volume")
return oe.pendingOperations.Run(
volumeToUnmount.VolumeName, podName, unmapFunc, opCompleteFunc)
volumeToUnmount.VolumeName, podName, generatedOperations)
}
func (oe *operationExecutor) UnmapDevice(
deviceToDetach AttachedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
mounter mount.Interface) error {
unmapDeviceFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateUnmapDeviceFunc(deviceToDetach, actualStateOfWorld, mounter)
if err != nil {
return err
......@@ -822,24 +813,22 @@ func (oe *operationExecutor) UnmapDevice(
// the same volume in parallel
podName := nestedpendingoperations.EmptyUniquePodName
opCompleteFunc := util.OperationCompleteHook(plugin, "unmap_device")
return oe.pendingOperations.Run(
deviceToDetach.VolumeName, podName, unmapDeviceFunc, opCompleteFunc)
deviceToDetach.VolumeName, podName, generatedOperations)
}
func (oe *operationExecutor) VerifyControllerAttachedVolume(
volumeToMount VolumeToMount,
nodeName types.NodeName,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) error {
verifyControllerAttachedVolumeFunc, plugin, err :=
generatedOperations, err :=
oe.operationGenerator.GenerateVerifyControllerAttachedVolumeFunc(volumeToMount, nodeName, actualStateOfWorld)
if err != nil {
return err
}
opCompleteFunc := util.OperationCompleteHook(plugin, "verify_controller_attached_volume")
return oe.pendingOperations.Run(
volumeToMount.VolumeName, "" /* podName */, verifyControllerAttachedVolumeFunc, opCompleteFunc)
volumeToMount.VolumeName, "" /* podName */, generatedOperations)
}
// VolumeStateHandler defines a set of operations for handling mount/unmount/detach/reconstruct volume-related operations
......
pkg/volume/util/operationexecutor/operation_executor_test.go
View file @ e3f8f64c
......@@ -350,87 +350,123 @@ func newFakeOperationGenerator(ch chan interface{}, quit chan interface{}) Opera
}
}
func (fopg *fakeOperationGenerator) GenerateMountVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater, isRemount bool) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateMountVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater, isRemount bool) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateUnmountVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateUnmountVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateAttachVolumeFunc(volumeToAttach VolumeToAttach, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateAttachVolumeFunc(volumeToAttach VolumeToAttach, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateDetachVolumeFunc(volumeToDetach AttachedVolume, verifySafeToDetach bool, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateDetachVolumeFunc(volumeToDetach AttachedVolume, verifySafeToDetach bool, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateVolumesAreAttachedFunc(attachedVolumes []AttachedVolume, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateVolumesAreAttachedFunc(attachedVolumes []AttachedVolume, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateUnmountDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateUnmountDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateVerifyControllerAttachedVolumeFunc(volumeToMount VolumeToMount, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateVerifyControllerAttachedVolumeFunc(volumeToMount VolumeToMount, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateExpandVolumeFunc(pvcWithResizeRequest *expandcache.PVCWithResizeRequest,
resizeMap expandcache.VolumeResizeMap) (func() error, string, error) {
return func() error {
resizeMap expandcache.VolumeResizeMap) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateBulkVolumeVerifyFunc(
pluginNodeVolumes map[types.NodeName][]*volume.Spec,
pluginNane string,
volumeSpecMap map[*volume.Spec]v1.UniqueVolumeName,
actualStateOfWorldAttacherUpdater ActualStateOfWorldAttacherUpdater) (func() error, error) {
return func() error {
actualStateOfWorldAttacherUpdater ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateMapVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateMapVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateUnmapVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateUnmapVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GenerateUnmapDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (func() error, string, error) {
return func() error {
func (fopg *fakeOperationGenerator) GenerateUnmapDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (volumetypes.GeneratedOperations, error) {
opFunc := func() (error, error) {
startOperationAndBlock(fopg.ch, fopg.quit)
return nil
}, "", nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: opFunc,
}, nil
}
func (fopg *fakeOperationGenerator) GetVolumePluginMgr() *volume.VolumePluginMgr {
......
pkg/volume/util/operationexecutor/operation_generator.go
View file @ e3f8f64c
......@@ -38,6 +38,7 @@ import (
"k8s.io/kubernetes/pkg/util/resizefs"
"k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/util"
volumetypes "k8s.io/kubernetes/pkg/volume/util/types"
"k8s.io/kubernetes/pkg/volume/util/volumehelper"
)
......@@ -83,34 +84,34 @@ func NewOperationGenerator(kubeClient clientset.Interface,
// OperationGenerator interface that extracts out the functions from operation_executor to make it dependency injectable
type OperationGenerator interface {
// Generates the MountVolume function needed to perform the mount of a volume plugin
GenerateMountVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater, isRemount bool) (func() error, string, error)
GenerateMountVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater, isRemount bool) (volumetypes.GeneratedOperations, error)
// Generates the UnmountVolume function needed to perform the unmount of a volume plugin
GenerateUnmountVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error)
GenerateUnmountVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error)
// Generates the AttachVolume function needed to perform attach of a volume plugin
GenerateAttachVolumeFunc(volumeToAttach VolumeToAttach, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error)
GenerateAttachVolumeFunc(volumeToAttach VolumeToAttach, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error)
// Generates the DetachVolume function needed to perform the detach of a volume plugin
GenerateDetachVolumeFunc(volumeToDetach AttachedVolume, verifySafeToDetach bool, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error)
GenerateDetachVolumeFunc(volumeToDetach AttachedVolume, verifySafeToDetach bool, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error)
// Generates the VolumesAreAttached function needed to verify if volume plugins are attached
GenerateVolumesAreAttachedFunc(attachedVolumes []AttachedVolume, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, error)
GenerateVolumesAreAttachedFunc(attachedVolumes []AttachedVolume, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error)
// Generates the UnMountDevice function needed to perform the unmount of a device
GenerateUnmountDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (func() error, string, error)
GenerateUnmountDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (volumetypes.GeneratedOperations, error)
// Generates the function needed to check if the attach_detach controller has attached the volume plugin
GenerateVerifyControllerAttachedVolumeFunc(volumeToMount VolumeToMount, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error)
GenerateVerifyControllerAttachedVolumeFunc(volumeToMount VolumeToMount, nodeName types.NodeName, actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error)
// Generates the MapVolume function needed to perform the map of a volume plugin
GenerateMapVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater) (func() error, string, error)
GenerateMapVolumeFunc(waitForAttachTimeout time.Duration, volumeToMount VolumeToMount, actualStateOfWorldMounterUpdater ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error)
// Generates the UnmapVolume function needed to perform the unmap of a volume plugin
GenerateUnmapVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error)
GenerateUnmapVolumeFunc(volumeToUnmount MountedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error)
// Generates the UnmapDevice function needed to perform the unmap of a device
GenerateUnmapDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (func() error, string, error)
GenerateUnmapDeviceFunc(deviceToDetach AttachedVolume, actualStateOfWorld ActualStateOfWorldMounterUpdater, mounter mount.Interface) (volumetypes.GeneratedOperations, error)
// GetVolumePluginMgr returns volume plugin manager
GetVolumePluginMgr() *volume.VolumePluginMgr
......@@ -118,15 +119,15 @@ type OperationGenerator interface {
GenerateBulkVolumeVerifyFunc(
map[types.NodeName][]*volume.Spec,
string,
map[*volume.Spec]v1.UniqueVolumeName, ActualStateOfWorldAttacherUpdater) (func() error, error)
map[*volume.Spec]v1.UniqueVolumeName, ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error)
GenerateExpandVolumeFunc(*expandcache.PVCWithResizeRequest, expandcache.VolumeResizeMap) (func() error, string, error)
GenerateExpandVolumeFunc(*expandcache.PVCWithResizeRequest, expandcache.VolumeResizeMap) (volumetypes.GeneratedOperations, error)
}
func (og *operationGenerator) GenerateVolumesAreAttachedFunc(
attachedVolumes []AttachedVolume,
nodeName types.NodeName,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, error) {
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
// volumesPerPlugin maps from a volume plugin to a list of volume specs which belong
// to this type of plugin
......@@ -154,7 +155,7 @@ func (og *operationGenerator) GenerateVolumesAreAttachedFunc(
volumeSpecMap[volumeAttached.VolumeSpec] = volumeAttached.VolumeName
}
return func() error {
volumesAreAttachedFunc := func() (error, error) {
// For each volume plugin, pass the list of volume specs to VolumesAreAttached to check
// whether the volumes are still attached.
......@@ -195,7 +196,13 @@ func (og *operationGenerator) GenerateVolumesAreAttachedFunc(
}
}
}
return nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: volumesAreAttachedFunc,
CompleteFunc: util.OperationCompleteHook("<n/a>", "verify_volumes_are_attached_per_node"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
......@@ -203,9 +210,9 @@ func (og *operationGenerator) GenerateBulkVolumeVerifyFunc(
pluginNodeVolumes map[types.NodeName][]*volume.Spec,
pluginName string,
volumeSpecMap map[*volume.Spec]v1.UniqueVolumeName,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, error) {
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
return func() error {
bulkVolumeVerifyFunc := func() (error, error) {
attachableVolumePlugin, err :=
og.volumePluginMgr.FindAttachablePluginByName(pluginName)
if err != nil || attachableVolumePlugin == nil {
......@@ -213,7 +220,7 @@ func (og *operationGenerator) GenerateBulkVolumeVerifyFunc(
"BulkVerifyVolume.FindAttachablePluginBySpec failed for plugin %q with: %v",
pluginName,
err)
return nil
return nil, nil
}
volumeAttacher, newAttacherErr := attachableVolumePlugin.NewAttacher()
......@@ -223,19 +230,19 @@ func (og *operationGenerator) GenerateBulkVolumeVerifyFunc(
"BulkVerifyVolume.NewAttacher failed for getting plugin %q with: %v",
attachableVolumePlugin,
newAttacherErr)
return nil
return nil, nil
}
bulkVolumeVerifier, ok := volumeAttacher.(volume.BulkVolumeVerifier)
if !ok {
glog.Errorf("BulkVerifyVolume failed to type assert attacher %q", bulkVolumeVerifier)
return nil
return nil, nil
}
attached, bulkAttachErr := bulkVolumeVerifier.BulkVerifyVolumes(pluginNodeVolumes)
if bulkAttachErr != nil {
glog.Errorf("BulkVerifyVolume.BulkVerifyVolumes Error checking volumes are attached with %v", bulkAttachErr)
return nil
return nil, nil
}
for nodeName, volumeSpecs := range pluginNodeVolumes {
......@@ -260,26 +267,43 @@ func (og *operationGenerator) GenerateBulkVolumeVerifyFunc(
}
}
return nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: bulkVolumeVerifyFunc,
CompleteFunc: util.OperationCompleteHook(pluginName, "verify_volumes_are_attached"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
func (og *operationGenerator) GenerateAttachVolumeFunc(
volumeToAttach VolumeToAttach,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error) {
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
// Get attacher plugin
eventRecorderFunc := func(err *error) {
if *err != nil {
for _, pod := range volumeToAttach.ScheduledPods {
og.recorder.Eventf(pod, v1.EventTypeWarning, kevents.FailedAttachVolume, (*err).Error())
}
}
}
attachableVolumePlugin, err :=
og.volumePluginMgr.FindAttachablePluginBySpec(volumeToAttach.VolumeSpec)
if err != nil || attachableVolumePlugin == nil {
return nil, "", volumeToAttach.GenerateErrorDetailed("AttachVolume.FindAttachablePluginBySpec failed", err)
eventRecorderFunc(&err)
return volumetypes.GeneratedOperations{}, volumeToAttach.GenerateErrorDetailed("AttachVolume.FindAttachablePluginBySpec failed", err)
}
volumeAttacher, newAttacherErr := attachableVolumePlugin.NewAttacher()
if newAttacherErr != nil {
return nil, attachableVolumePlugin.GetPluginName(), volumeToAttach.GenerateErrorDetailed("AttachVolume.NewAttacher failed", newAttacherErr)
eventRecorderFunc(&err)
return volumetypes.GeneratedOperations{}, volumeToAttach.GenerateErrorDetailed("AttachVolume.NewAttacher failed", newAttacherErr)
}
return func() error {
attachVolumeFunc := func() (error, error) {
// Execute attach
devicePath, attachErr := volumeAttacher.Attach(
volumeToAttach.VolumeSpec, volumeToAttach.NodeName)
......@@ -298,11 +322,7 @@ func (og *operationGenerator) GenerateAttachVolumeFunc(
}
// On failure, return error. Caller will log and retry.
eventErr, detailedErr := volumeToAttach.GenerateError("AttachVolume.Attach failed", attachErr)
for _, pod := range volumeToAttach.ScheduledPods {
og.recorder.Eventf(pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
}
return detailedErr
return volumeToAttach.GenerateError("AttachVolume.Attach failed", attachErr)
}
glog.Infof(volumeToAttach.GenerateMsgDetailed("AttachVolume.Attach succeeded", ""))
......@@ -312,11 +332,17 @@ func (og *operationGenerator) GenerateAttachVolumeFunc(
v1.UniqueVolumeName(""), volumeToAttach.VolumeSpec, volumeToAttach.NodeName, devicePath)
if addVolumeNodeErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToAttach.GenerateErrorDetailed("AttachVolume.MarkVolumeAsAttached failed", addVolumeNodeErr)
return volumeToAttach.GenerateError("AttachVolume.MarkVolumeAsAttached failed", addVolumeNodeErr)
}
return nil
}, attachableVolumePlugin.GetPluginName(), nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: attachVolumeFunc,
EventRecorderFunc: eventRecorderFunc,
CompleteFunc: util.OperationCompleteHook(attachableVolumePlugin.GetPluginName(), "volume_attach"),
}, nil
}
func (og *operationGenerator) GetVolumePluginMgr() *volume.VolumePluginMgr {
......@@ -326,7 +352,7 @@ func (og *operationGenerator) GetVolumePluginMgr() *volume.VolumePluginMgr {
func (og *operationGenerator) GenerateDetachVolumeFunc(
volumeToDetach AttachedVolume,
verifySafeToDetach bool,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error) {
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
var volumeName string
var attachableVolumePlugin volume.AttachableVolumePlugin
var pluginName string
......@@ -337,13 +363,13 @@ func (og *operationGenerator) GenerateDetachVolumeFunc(
attachableVolumePlugin, err =
og.volumePluginMgr.FindAttachablePluginBySpec(volumeToDetach.VolumeSpec)
if err != nil || attachableVolumePlugin == nil {
return nil, "", volumeToDetach.GenerateErrorDetailed("DetachVolume.FindAttachablePluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, volumeToDetach.GenerateErrorDetailed("DetachVolume.FindAttachablePluginBySpec failed", err)
}
volumeName, err =
attachableVolumePlugin.GetVolumeName(volumeToDetach.VolumeSpec)
if err != nil {
return nil, attachableVolumePlugin.GetPluginName(), volumeToDetach.GenerateErrorDetailed("DetachVolume.GetVolumeName failed", err)
return volumetypes.GeneratedOperations{}, volumeToDetach.GenerateErrorDetailed("DetachVolume.GetVolumeName failed", err)
}
} else {
// Get attacher plugin and the volumeName by splitting the volume unique name in case
......@@ -351,11 +377,11 @@ func (og *operationGenerator) GenerateDetachVolumeFunc(
// when a pod has been deleted during the controller downtime
pluginName, volumeName, err = volumehelper.SplitUniqueName(volumeToDetach.VolumeName)
if err != nil {
return nil, pluginName, volumeToDetach.GenerateErrorDetailed("DetachVolume.SplitUniqueName failed", err)
return volumetypes.GeneratedOperations{}, volumeToDetach.GenerateErrorDetailed("DetachVolume.SplitUniqueName failed", err)
}
attachableVolumePlugin, err = og.volumePluginMgr.FindAttachablePluginByName(pluginName)
if err != nil {
return nil, pluginName, volumeToDetach.GenerateErrorDetailed("DetachVolume.FindAttachablePluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, volumeToDetach.GenerateErrorDetailed("DetachVolume.FindAttachablePluginBySpec failed", err)
}
}
......@@ -365,10 +391,10 @@ func (og *operationGenerator) GenerateDetachVolumeFunc(
volumeDetacher, err := attachableVolumePlugin.NewDetacher()
if err != nil {
return nil, pluginName, volumeToDetach.GenerateErrorDetailed("DetachVolume.NewDetacher failed", err)
return volumetypes.GeneratedOperations{}, volumeToDetach.GenerateErrorDetailed("DetachVolume.NewDetacher failed", err)
}
return func() error {
getVolumePluginMgrFunc := func() (error, error) {
var err error
if verifySafeToDetach {
err = og.verifyVolumeIsSafeToDetach(volumeToDetach)
......@@ -380,7 +406,7 @@ func (og *operationGenerator) GenerateDetachVolumeFunc(
// On failure, add volume back to ReportAsAttached list
actualStateOfWorld.AddVolumeToReportAsAttached(
volumeToDetach.VolumeName, volumeToDetach.NodeName)
return volumeToDetach.GenerateErrorDetailed("DetachVolume.Detach failed", err)
return volumeToDetach.GenerateError("DetachVolume.Detach failed", err)
}
glog.Infof(volumeToDetach.GenerateMsgDetailed("DetachVolume.Detach succeeded", ""))
......@@ -389,25 +415,33 @@ func (og *operationGenerator) GenerateDetachVolumeFunc(
actualStateOfWorld.MarkVolumeAsDetached(
volumeToDetach.VolumeName, volumeToDetach.NodeName)
return nil
}, pluginName, nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: getVolumePluginMgrFunc,
CompleteFunc: util.OperationCompleteHook(pluginName, "volume_detach"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
func (og *operationGenerator) GenerateMountVolumeFunc(
waitForAttachTimeout time.Duration,
volumeToMount VolumeToMount,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
isRemount bool) (func() error, string, error) {
isRemount bool) (volumetypes.GeneratedOperations, error) {
// Get mounter plugin
volumePlugin, err :=
og.volumePluginMgr.FindPluginBySpec(volumeToMount.VolumeSpec)
if err != nil || volumePlugin == nil {
return nil, "", volumeToMount.GenerateErrorDetailed("MountVolume.FindPluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, volumeToMount.GenerateErrorDetailed("MountVolume.FindPluginBySpec failed", err)
}
affinityErr := checkNodeAffinity(og, volumeToMount, volumePlugin)
if affinityErr != nil {
return nil, volumePlugin.GetPluginName(), affinityErr
eventErr, detailedErr := volumeToMount.GenerateError("MountVolume.NodeAffinity check failed", affinityErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return volumetypes.GeneratedOperations{}, detailedErr
}
volumeMounter, newMounterErr := volumePlugin.NewMounter(
......@@ -417,13 +451,15 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
if newMounterErr != nil {
eventErr, detailedErr := volumeToMount.GenerateError("MountVolume.NewMounter initialization failed", newMounterErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return nil, volumePlugin.GetPluginName(), detailedErr
return volumetypes.GeneratedOperations{}, detailedErr
}
mountCheckError := checkMountOptionSupport(og, volumeToMount, volumePlugin)
if mountCheckError != nil {
return nil, volumePlugin.GetPluginName(), mountCheckError
eventErr, detailedErr := volumeToMount.GenerateError("MountVolume.MountOptionSupport check failed", mountCheckError)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.UnsupportedMountOption, eventErr.Error())
return volumetypes.GeneratedOperations{}, detailedErr
}
// Get attacher, if possible
......@@ -440,7 +476,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
fsGroup = volumeToMount.Pod.Spec.SecurityContext.FSGroup
}
return func() error {
mountVolumeFunc := func() (error, error) {
if volumeAttacher != nil {
// Wait for attachable volumes to finish attaching
glog.Infof(volumeToMount.GenerateMsgDetailed("MountVolume.WaitForAttach entering", fmt.Sprintf("DevicePath %q", volumeToMount.DevicePath)))
......@@ -449,7 +485,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
volumeToMount.VolumeSpec, volumeToMount.DevicePath, volumeToMount.Pod, waitForAttachTimeout)
if err != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MountVolume.WaitForAttach failed", err)
return volumeToMount.GenerateError("MountVolume.WaitForAttach failed", err)
}
glog.Infof(volumeToMount.GenerateMsgDetailed("MountVolume.WaitForAttach succeeded", fmt.Sprintf("DevicePath %q", devicePath)))
......@@ -459,14 +495,14 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
resizeError := og.resizeFileSystem(volumeToMount, devicePath, volumePlugin.GetPluginName())
if resizeError != nil {
return volumeToMount.GenerateErrorDetailed("MountVolume.Resize failed", resizeError)
return volumeToMount.GenerateError("MountVolume.Resize failed", resizeError)
}
deviceMountPath, err :=
volumeAttacher.GetDeviceMountPath(volumeToMount.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MountVolume.GetDeviceMountPath failed", err)
return volumeToMount.GenerateError("MountVolume.GetDeviceMountPath failed", err)
}
// Mount device to global mount path
......@@ -476,9 +512,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
deviceMountPath)
if err != nil {
// On failure, return error. Caller will log and retry.
eventErr, detailedErr := volumeToMount.GenerateError("MountVolume.MountDevice failed", err)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return detailedErr
return volumeToMount.GenerateError("MountVolume.MountDevice failed", err)
}
glog.Infof(volumeToMount.GenerateMsgDetailed("MountVolume.MountDevice succeeded", fmt.Sprintf("device mount path %q", deviceMountPath)))
......@@ -488,7 +522,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
volumeToMount.VolumeName)
if markDeviceMountedErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MountVolume.MarkDeviceAsMounted failed", markDeviceMountedErr)
return volumeToMount.GenerateError("MountVolume.MarkDeviceAsMounted failed", markDeviceMountedErr)
}
}
......@@ -497,9 +531,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
err = fmt.Errorf(
"Verify that your node machine has the required components before attempting to mount this volume type. %s",
canMountErr)
eventErr, detailedErr := volumeToMount.GenerateError("MountVolume.CanMount failed", err)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return detailedErr
return volumeToMount.GenerateError("MountVolume.CanMount failed", err)
}
}
......@@ -507,9 +539,7 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
mountErr := volumeMounter.SetUp(fsGroup)
if mountErr != nil {
// On failure, return error. Caller will log and retry.
eventErr, detailedErr := volumeToMount.GenerateError("MountVolume.SetUp failed", mountErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return detailedErr
return volumeToMount.GenerateError("MountVolume.SetUp failed", mountErr)
}
simpleMsg, detailedMsg := volumeToMount.GenerateMsg("MountVolume.SetUp succeeded", "")
......@@ -532,11 +562,23 @@ func (og *operationGenerator) GenerateMountVolumeFunc(
volumeToMount.VolumeGidValue)
if markVolMountedErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MountVolume.MarkVolumeAsMounted failed", markVolMountedErr)
return volumeToMount.GenerateError("MountVolume.MarkVolumeAsMounted failed", markVolMountedErr)
}
return nil
}, volumePlugin.GetPluginName(), nil
return nil, nil
}
eventRecorderFunc := func(err *error) {
if *err != nil {
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, (*err).Error())
}
}
return volumetypes.GeneratedOperations{
OperationFunc: mountVolumeFunc,
EventRecorderFunc: eventRecorderFunc,
CompleteFunc: util.OperationCompleteHook(volumePlugin.GetPluginName(), "volume_mount"),
}, nil
}
func (og *operationGenerator) resizeFileSystem(volumeToMount VolumeToMount, devicePath string, pluginName string) error {
......@@ -608,26 +650,26 @@ func (og *operationGenerator) resizeFileSystem(volumeToMount VolumeToMount, devi
func (og *operationGenerator) GenerateUnmountVolumeFunc(
volumeToUnmount MountedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error) {
actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error) {
// Get mountable plugin
volumePlugin, err :=
og.volumePluginMgr.FindPluginByName(volumeToUnmount.PluginName)
if err != nil || volumePlugin == nil {
return nil, "", volumeToUnmount.GenerateErrorDetailed("UnmountVolume.FindPluginByName failed", err)
return volumetypes.GeneratedOperations{}, volumeToUnmount.GenerateErrorDetailed("UnmountVolume.FindPluginByName failed", err)
}
volumeUnmounter, newUnmounterErr := volumePlugin.NewUnmounter(
volumeToUnmount.InnerVolumeSpecName, volumeToUnmount.PodUID)
if newUnmounterErr != nil {
return nil, volumePlugin.GetPluginName(), volumeToUnmount.GenerateErrorDetailed("UnmountVolume.NewUnmounter failed", newUnmounterErr)
return volumetypes.GeneratedOperations{}, volumeToUnmount.GenerateErrorDetailed("UnmountVolume.NewUnmounter failed", newUnmounterErr)
}
return func() error {
unmountVolumeFunc := func() (error, error) {
// Execute unmount
unmountErr := volumeUnmounter.TearDown()
if unmountErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToUnmount.GenerateErrorDetailed("UnmountVolume.TearDown failed", unmountErr)
return volumeToUnmount.GenerateError("UnmountVolume.TearDown failed", unmountErr)
}
glog.Infof(
......@@ -648,37 +690,43 @@ func (og *operationGenerator) GenerateUnmountVolumeFunc(
glog.Errorf(volumeToUnmount.GenerateErrorDetailed("UnmountVolume.MarkVolumeAsUnmounted failed", markVolMountedErr).Error())
}
return nil
}, volumePlugin.GetPluginName(), nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: unmountVolumeFunc,
CompleteFunc: util.OperationCompleteHook(volumePlugin.GetPluginName(), "volume_unmount"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
func (og *operationGenerator) GenerateUnmountDeviceFunc(
deviceToDetach AttachedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
mounter mount.Interface) (func() error, string, error) {
mounter mount.Interface) (volumetypes.GeneratedOperations, error) {
// Get attacher plugin
attachableVolumePlugin, err :=
og.volumePluginMgr.FindAttachablePluginBySpec(deviceToDetach.VolumeSpec)
if err != nil || attachableVolumePlugin == nil {
return nil, "", deviceToDetach.GenerateErrorDetailed("UnmountDevice.FindAttachablePluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmountDevice.FindAttachablePluginBySpec failed", err)
}
volumeDetacher, err := attachableVolumePlugin.NewDetacher()
if err != nil {
return nil, attachableVolumePlugin.GetPluginName(), deviceToDetach.GenerateErrorDetailed("UnmountDevice.NewDetacher failed", err)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmountDevice.NewDetacher failed", err)
}
volumeAttacher, err := attachableVolumePlugin.NewAttacher()
if err != nil {
return nil, attachableVolumePlugin.GetPluginName(), deviceToDetach.GenerateErrorDetailed("UnmountDevice.NewAttacher failed", err)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmountDevice.NewAttacher failed", err)
}
return func() error {
unmountDeviceFunc := func() (error, error) {
deviceMountPath, err :=
volumeAttacher.GetDeviceMountPath(deviceToDetach.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("GetDeviceMountPath failed", err)
return deviceToDetach.GenerateError("GetDeviceMountPath failed", err)
}
refs, err := attachableVolumePlugin.GetDeviceMountRefs(deviceMountPath)
......@@ -686,13 +734,13 @@ func (og *operationGenerator) GenerateUnmountDeviceFunc(
if err == nil {
err = fmt.Errorf("The device mount path %q is still mounted by other references %v", deviceMountPath, refs)
}
return deviceToDetach.GenerateErrorDetailed("GetDeviceMountRefs check failed", err)
return deviceToDetach.GenerateError("GetDeviceMountRefs check failed", err)
}
// Execute unmount
unmountDeviceErr := volumeDetacher.UnmountDevice(deviceMountPath)
if unmountDeviceErr != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("UnmountDevice failed", unmountDeviceErr)
return deviceToDetach.GenerateError("UnmountDevice failed", unmountDeviceErr)
}
// Before logging that UnmountDevice succeeded and moving on,
// use mounter.PathIsDevice to check if the path is a device,
......@@ -700,27 +748,33 @@ func (og *operationGenerator) GenerateUnmountDeviceFunc(
// else on the system. Retry if it returns true.
deviceOpened, deviceOpenedErr := isDeviceOpened(deviceToDetach, mounter)
if deviceOpenedErr != nil {
return deviceOpenedErr
return nil, deviceOpenedErr
}
// The device is still in use elsewhere. Caller will log and retry.
if deviceOpened {
return deviceToDetach.GenerateErrorDetailed(
return deviceToDetach.GenerateError(
"UnmountDevice failed",
fmt.Errorf("the device is in use when it was no longer expected to be in use"))
}
glog.Infof(deviceToDetach.GenerateMsgDetailed("UnmountDevice succeeded", ""))
glog.Infof(deviceToDetach.GenerateMsg("UnmountDevice succeeded", ""))
// Update actual state of world
markDeviceUnmountedErr := actualStateOfWorld.MarkDeviceAsUnmounted(
deviceToDetach.VolumeName)
if markDeviceUnmountedErr != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("MarkDeviceAsUnmounted failed", markDeviceUnmountedErr)
return deviceToDetach.GenerateError("MarkDeviceAsUnmounted failed", markDeviceUnmountedErr)
}
return nil
}, attachableVolumePlugin.GetPluginName(), nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: unmountDeviceFunc,
CompleteFunc: util.OperationCompleteHook(attachableVolumePlugin.GetPluginName(), "unmount_device"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
// GenerateMapVolumeFunc marks volume as mounted based on following steps.
......@@ -731,25 +785,27 @@ func (og *operationGenerator) GenerateUnmountDeviceFunc(
// device map path. Once symbolic links are created, take fd lock by
// loopback for the device to avoid silent volume replacement. This lock
// will be realased once no one uses the device.
// If all steps are completed, the volume is marked as unmounted.
// If all steps are completed, the volume is marked as mounted.
func (og *operationGenerator) GenerateMapVolumeFunc(
waitForAttachTimeout time.Duration,
volumeToMount VolumeToMount,
actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error) {
actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error) {
// Get block volume mapper plugin
var blockVolumeMapper volume.BlockVolumeMapper
blockVolumePlugin, err :=
og.volumePluginMgr.FindMapperPluginBySpec(volumeToMount.VolumeSpec)
if err != nil {
return nil, "", volumeToMount.GenerateErrorDetailed("MapVolume.FindMapperPluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, volumeToMount.GenerateErrorDetailed("MapVolume.FindMapperPluginBySpec failed", err)
}
if blockVolumePlugin == nil {
return nil, "", volumeToMount.GenerateErrorDetailed("MapVolume.FindMapperPluginBySpec failed to find BlockVolumeMapper plugin. Volume plugin is nil.", nil)
return volumetypes.GeneratedOperations{}, volumeToMount.GenerateErrorDetailed("MapVolume.FindMapperPluginBySpec failed to find BlockVolumeMapper plugin. Volume plugin is nil.", nil)
}
affinityErr := checkNodeAffinity(og, volumeToMount, blockVolumePlugin)
if affinityErr != nil {
return nil, blockVolumePlugin.GetPluginName(), affinityErr
eventErr, detailedErr := volumeToMount.GenerateError("MapVolume.NodeAffinity check failed", affinityErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return volumetypes.GeneratedOperations{}, detailedErr
}
blockVolumeMapper, newMapperErr := blockVolumePlugin.NewBlockVolumeMapper(
volumeToMount.VolumeSpec,
......@@ -758,7 +814,7 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
if newMapperErr != nil {
eventErr, detailedErr := volumeToMount.GenerateError("MapVolume.NewBlockVolumeMapper initialization failed", newMapperErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMapVolume, eventErr.Error())
return nil, blockVolumePlugin.GetPluginName(), detailedErr
return volumetypes.GeneratedOperations{}, detailedErr
}
// Get attacher, if possible
......@@ -769,7 +825,7 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
volumeAttacher, _ = attachableVolumePlugin.NewAttacher()
}
return func() error {
mapVolumeFunc := func() (error, error) {
var devicePath string
if volumeAttacher != nil {
// Wait for attachable volumes to finish attaching
......@@ -779,7 +835,7 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
volumeToMount.VolumeSpec, volumeToMount.DevicePath, volumeToMount.Pod, waitForAttachTimeout)
if err != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MapVolume.WaitForAttach failed", err)
return volumeToMount.GenerateError("MapVolume.WaitForAttach failed", err)
}
glog.Infof(volumeToMount.GenerateMsgDetailed("MapVolume.WaitForAttach succeeded", fmt.Sprintf("DevicePath %q", devicePath)))
......@@ -789,23 +845,21 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
volumeToMount.VolumeName)
if markDeviceMappedErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MapVolume.MarkDeviceAsMounted failed", markDeviceMappedErr)
return volumeToMount.GenerateError("MapVolume.MarkDeviceAsMounted failed", markDeviceMappedErr)
}
}
// A plugin doesn't have attacher also needs to map device to global map path with SetUpDevice()
pluginDevicePath, mapErr := blockVolumeMapper.SetUpDevice()
if mapErr != nil {
// On failure, return error. Caller will log and retry.
eventErr, detailedErr := volumeToMount.GenerateError("MapVolume.SetUp failed", mapErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMapVolume, eventErr.Error())
return detailedErr
return volumeToMount.GenerateError("MapVolume.SetUp failed", mapErr)
}
// Update devicePath for none attachable plugin case
if len(devicePath) == 0 {
if len(pluginDevicePath) != 0 {
devicePath = pluginDevicePath
} else {
return volumeToMount.GenerateErrorDetailed("MapVolume failed", fmt.Errorf("Device path of the volume is empty"))
return volumeToMount.GenerateError("MapVolume failed", fmt.Errorf("Device path of the volume is empty"))
}
}
// Set up global map path under the given plugin directory using symbolic link
......@@ -813,14 +867,12 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
blockVolumeMapper.GetGlobalMapPath(volumeToMount.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MapVolume.GetDeviceMountPath failed", err)
return volumeToMount.GenerateError("MapVolume.GetDeviceMountPath failed", err)
}
mapErr = og.blkUtil.MapDevice(devicePath, globalMapPath, string(volumeToMount.Pod.UID))
if mapErr != nil {
// On failure, return error. Caller will log and retry.
eventErr, detailedErr := volumeToMount.GenerateError("MapVolume.MapDevice failed", mapErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMapVolume, eventErr.Error())
return detailedErr
return volumeToMount.GenerateError("MapVolume.MapDevice failed", mapErr)
}
// Device mapping for global map path succeeded
simpleMsg, detailedMsg := volumeToMount.GenerateMsg("MapVolume.MapDevice succeeded", fmt.Sprintf("globalMapPath %q", globalMapPath))
......@@ -833,9 +885,7 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
mapErr = og.blkUtil.MapDevice(devicePath, volumeMapPath, volName)
if mapErr != nil {
// On failure, return error. Caller will log and retry.
eventErr, detailedErr := volumeToMount.GenerateError("MapVolume.MapDevice failed", mapErr)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMapVolume, eventErr.Error())
return detailedErr
return volumeToMount.GenerateError("MapVolume.MapDevice failed", mapErr)
}
// Take filedescriptor lock to keep a block device opened. Otherwise, there is a case
......@@ -844,7 +894,7 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
// for the block device is required.
_, err = og.blkUtil.AttachFileDevice(devicePath)
if err != nil {
return volumeToMount.GenerateErrorDetailed("MapVolume.AttachFileDevice failed", err)
return volumeToMount.GenerateError("MapVolume.AttachFileDevice failed", err)
}
// Device mapping for pod device map path succeeded
......@@ -864,11 +914,23 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
volumeToMount.VolumeGidValue)
if markVolMountedErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("MapVolume.MarkVolumeAsMounted failed", markVolMountedErr)
return volumeToMount.GenerateError("MapVolume.MarkVolumeAsMounted failed", markVolMountedErr)
}
return nil
}, blockVolumePlugin.GetPluginName(), nil
return nil, nil
}
eventRecorderFunc := func(err *error) {
if *err != nil {
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMapVolume, (*err).Error())
}
}
return volumetypes.GeneratedOperations{
OperationFunc: mapVolumeFunc,
EventRecorderFunc: eventRecorderFunc,
CompleteFunc: util.OperationCompleteHook(blockVolumePlugin.GetPluginName(), "map_volume"),
}, nil
}
// GenerateUnmapVolumeFunc marks volume as unmonuted based on following steps.
......@@ -877,32 +939,32 @@ func (og *operationGenerator) GenerateMapVolumeFunc(
// If all steps are completed, the volume is marked as unmounted.
func (og *operationGenerator) GenerateUnmapVolumeFunc(
volumeToUnmount MountedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater) (func() error, string, error) {
actualStateOfWorld ActualStateOfWorldMounterUpdater) (volumetypes.GeneratedOperations, error) {
// Get block volume unmapper plugin
var blockVolumeUnmapper volume.BlockVolumeUnmapper
blockVolumePlugin, err :=
og.volumePluginMgr.FindMapperPluginByName(volumeToUnmount.PluginName)
if err != nil {
return nil, "", volumeToUnmount.GenerateErrorDetailed("UnmapVolume.FindMapperPluginByName failed", err)
return volumetypes.GeneratedOperations{}, volumeToUnmount.GenerateErrorDetailed("UnmapVolume.FindMapperPluginByName failed", err)
}
if blockVolumePlugin == nil {
return nil, "", volumeToUnmount.GenerateErrorDetailed("UnmapVolume.FindMapperPluginByName failed to find BlockVolumeMapper plugin. Volume plugin is nil.", nil)
return volumetypes.GeneratedOperations{}, volumeToUnmount.GenerateErrorDetailed("UnmapVolume.FindMapperPluginByName failed to find BlockVolumeMapper plugin. Volume plugin is nil.", nil)
}
blockVolumeUnmapper, newUnmapperErr := blockVolumePlugin.NewBlockVolumeUnmapper(
volumeToUnmount.InnerVolumeSpecName, volumeToUnmount.PodUID)
if newUnmapperErr != nil {
return nil, blockVolumePlugin.GetPluginName(), volumeToUnmount.GenerateErrorDetailed("UnmapVolume.NewUnmapper failed", newUnmapperErr)
return volumetypes.GeneratedOperations{}, volumeToUnmount.GenerateErrorDetailed("UnmapVolume.NewUnmapper failed", newUnmapperErr)
}
return func() error {
unmapVolumeFunc := func() (error, error) {
// Try to unmap volumeName symlink under pod device map path dir
// pods/{podUid}/volumeDevices/{escapeQualifiedPluginName}/{volumeName}
podDeviceUnmapPath, volName := blockVolumeUnmapper.GetPodDeviceMapPath()
unmapDeviceErr := og.blkUtil.UnmapDevice(podDeviceUnmapPath, volName)
if unmapDeviceErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToUnmount.GenerateErrorDetailed("UnmapVolume.UnmapDevice on pod device map path failed", unmapDeviceErr)
return volumeToUnmount.GenerateError("UnmapVolume.UnmapDevice on pod device map path failed", unmapDeviceErr)
}
// Try to unmap podUID symlink under global map path dir
// plugins/kubernetes.io/{PluginName}/volumeDevices/{volumePluginDependentPath}/{podUID}
......@@ -910,12 +972,12 @@ func (og *operationGenerator) GenerateUnmapVolumeFunc(
blockVolumeUnmapper.GetGlobalMapPath(volumeToUnmount.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return volumeToUnmount.GenerateErrorDetailed("UnmapVolume.GetGlobalUnmapPath failed", err)
return volumeToUnmount.GenerateError("UnmapVolume.GetGlobalUnmapPath failed", err)
}
unmapDeviceErr = og.blkUtil.UnmapDevice(globalUnmapPath, string(volumeToUnmount.PodUID))
if unmapDeviceErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToUnmount.GenerateErrorDetailed("UnmapVolume.UnmapDevice on global map path failed", unmapDeviceErr)
return volumeToUnmount.GenerateError("UnmapVolume.UnmapDevice on global map path failed", unmapDeviceErr)
}
glog.Infof(
......@@ -936,8 +998,14 @@ func (og *operationGenerator) GenerateUnmapVolumeFunc(
glog.Errorf(volumeToUnmount.GenerateErrorDetailed("UnmapVolume.MarkVolumeAsUnmounted failed", markVolUnmountedErr).Error())
}
return nil
}, blockVolumePlugin.GetPluginName(), nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: unmapVolumeFunc,
CompleteFunc: util.OperationCompleteHook(blockVolumePlugin.GetPluginName(), "unmap_volume"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
// GenerateUnmapDeviceFunc marks device as unmounted based on following steps.
......@@ -953,56 +1021,56 @@ func (og *operationGenerator) GenerateUnmapVolumeFunc(
func (og *operationGenerator) GenerateUnmapDeviceFunc(
deviceToDetach AttachedVolume,
actualStateOfWorld ActualStateOfWorldMounterUpdater,
mounter mount.Interface) (func() error, string, error) {
mounter mount.Interface) (volumetypes.GeneratedOperations, error) {
// Get block volume mapper plugin
var blockVolumeMapper volume.BlockVolumeMapper
blockVolumePlugin, err :=
og.volumePluginMgr.FindMapperPluginBySpec(deviceToDetach.VolumeSpec)
if err != nil {
return nil, "", deviceToDetach.GenerateErrorDetailed("UnmapDevice.FindMapperPluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmapDevice.FindMapperPluginBySpec failed", err)
}
if blockVolumePlugin == nil {
return nil, "", deviceToDetach.GenerateErrorDetailed("UnmapDevice.FindMapperPluginBySpec failed to find BlockVolumeMapper plugin. Volume plugin is nil.", nil)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmapDevice.FindMapperPluginBySpec failed to find BlockVolumeMapper plugin. Volume plugin is nil.", nil)
}
blockVolumeMapper, newMapperErr := blockVolumePlugin.NewBlockVolumeMapper(
deviceToDetach.VolumeSpec,
nil, /* Pod */
volume.VolumeOptions{})
if newMapperErr != nil {
return nil, "", deviceToDetach.GenerateErrorDetailed("UnmapDevice.NewBlockVolumeMapper initialization failed", newMapperErr)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmapDevice.NewBlockVolumeMapper initialization failed", newMapperErr)
}
blockVolumeUnmapper, newUnmapperErr := blockVolumePlugin.NewBlockVolumeUnmapper(
string(deviceToDetach.VolumeName),
"" /* podUID */)
if newUnmapperErr != nil {
return nil, blockVolumePlugin.GetPluginName(), deviceToDetach.GenerateErrorDetailed("UnmapDevice.NewUnmapper failed", newUnmapperErr)
return volumetypes.GeneratedOperations{}, deviceToDetach.GenerateErrorDetailed("UnmapDevice.NewUnmapper failed", newUnmapperErr)
}
return func() error {
unmapDeviceFunc := func() (error, error) {
// Search under globalMapPath dir if all symbolic links from pods have been removed already.
// If symbolick links are there, pods may still refer the volume.
globalMapPath, err :=
blockVolumeMapper.GetGlobalMapPath(deviceToDetach.VolumeSpec)
if err != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("UnmapDevice.GetGlobalMapPath failed", err)
return deviceToDetach.GenerateError("UnmapDevice.GetGlobalMapPath failed", err)
}
refs, err := og.blkUtil.GetDeviceSymlinkRefs(deviceToDetach.DevicePath, globalMapPath)
if err != nil {
return deviceToDetach.GenerateErrorDetailed("UnmapDevice.GetDeviceSymlinkRefs check failed", err)
return deviceToDetach.GenerateError("UnmapDevice.GetDeviceSymlinkRefs check failed", err)
}
if len(refs) > 0 {
err = fmt.Errorf("The device %q is still referenced from other Pods %v", globalMapPath, refs)
return deviceToDetach.GenerateErrorDetailed("UnmapDevice failed", err)
return deviceToDetach.GenerateError("UnmapDevice failed", err)
}
// Execute tear down device
unmapErr := blockVolumeUnmapper.TearDownDevice(globalMapPath, deviceToDetach.DevicePath)
if unmapErr != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("UnmapDevice.TearDownDevice failed", unmapErr)
return deviceToDetach.GenerateError("UnmapDevice.TearDownDevice failed", unmapErr)
}
// Plugin finished TearDownDevice(). Now globalMapPath dir and plugin's stored data
......@@ -1010,7 +1078,7 @@ func (og *operationGenerator) GenerateUnmapDeviceFunc(
removeMapPathErr := og.blkUtil.RemoveMapPath(globalMapPath)
if removeMapPathErr != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("UnmapDevice failed", removeMapPathErr)
return deviceToDetach.GenerateError("UnmapDevice failed", removeMapPathErr)
}
// The block volume is not referenced from Pods. Release file descriptor lock.
......@@ -1021,7 +1089,7 @@ func (og *operationGenerator) GenerateUnmapDeviceFunc(
} else {
err = og.blkUtil.RemoveLoopDevice(loopPath)
if err != nil {
return deviceToDetach.GenerateErrorDetailed("UnmapDevice.AttachFileDevice failed", err)
return deviceToDetach.GenerateError("UnmapDevice.AttachFileDevice failed", err)
}
}
......@@ -1031,11 +1099,11 @@ func (og *operationGenerator) GenerateUnmapDeviceFunc(
// else on the system. Retry if it returns true.
deviceOpened, deviceOpenedErr := isDeviceOpened(deviceToDetach, mounter)
if deviceOpenedErr != nil {
return deviceOpenedErr
return nil, deviceOpenedErr
}
// The device is still in use elsewhere. Caller will log and retry.
if deviceOpened {
return deviceToDetach.GenerateErrorDetailed(
return deviceToDetach.GenerateError(
"UnmapDevice failed",
fmt.Errorf("the device is in use when it was no longer expected to be in use"))
}
......@@ -1047,24 +1115,30 @@ func (og *operationGenerator) GenerateUnmapDeviceFunc(
deviceToDetach.VolumeName)
if markDeviceUnmountedErr != nil {
// On failure, return error. Caller will log and retry.
return deviceToDetach.GenerateErrorDetailed("MarkDeviceAsUnmounted failed", markDeviceUnmountedErr)
return deviceToDetach.GenerateError("MarkDeviceAsUnmounted failed", markDeviceUnmountedErr)
}
return nil
}, blockVolumePlugin.GetPluginName(), nil
return nil, nil
}
return volumetypes.GeneratedOperations{
OperationFunc: unmapDeviceFunc,
CompleteFunc: util.OperationCompleteHook(blockVolumePlugin.GetPluginName(), "unmap_device"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
func (og *operationGenerator) GenerateVerifyControllerAttachedVolumeFunc(
volumeToMount VolumeToMount,
nodeName types.NodeName,
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (func() error, string, error) {
actualStateOfWorld ActualStateOfWorldAttacherUpdater) (volumetypes.GeneratedOperations, error) {
volumePlugin, err :=
og.volumePluginMgr.FindPluginBySpec(volumeToMount.VolumeSpec)
if err != nil || volumePlugin == nil {
return nil, "", volumeToMount.GenerateErrorDetailed("VerifyControllerAttachedVolume.FindPluginBySpec failed", err)
return volumetypes.GeneratedOperations{}, volumeToMount.GenerateErrorDetailed("VerifyControllerAttachedVolume.FindPluginBySpec failed", err)
}
return func() error {
verifyControllerAttachedVolumeFunc := func() (error, error) {
if !volumeToMount.PluginIsAttachable {
// If the volume does not implement the attacher interface, it is
// assumed to be attached and the actual state of the world is
......@@ -1074,10 +1148,10 @@ func (og *operationGenerator) GenerateVerifyControllerAttachedVolumeFunc(
volumeToMount.VolumeName, volumeToMount.VolumeSpec, nodeName, "" /* devicePath */)
if addVolumeNodeErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("VerifyControllerAttachedVolume.MarkVolumeAsAttachedByUniqueVolumeName failed", addVolumeNodeErr)
return volumeToMount.GenerateError("VerifyControllerAttachedVolume.MarkVolumeAsAttachedByUniqueVolumeName failed", addVolumeNodeErr)
}
return nil
return nil, nil
}
if !volumeToMount.ReportedInUse {
......@@ -1087,19 +1161,19 @@ func (og *operationGenerator) GenerateVerifyControllerAttachedVolumeFunc(
// periodically by kubelet, so it may take as much as 10 seconds
// before this clears.
// Issue #28141 to enable on demand status updates.
return volumeToMount.GenerateErrorDetailed("Volume has not been added to the list of VolumesInUse in the node's volume status", nil)
return volumeToMount.GenerateError("Volume has not been added to the list of VolumesInUse in the node's volume status", nil)
}
// Fetch current node object
node, fetchErr := og.kubeClient.CoreV1().Nodes().Get(string(nodeName), metav1.GetOptions{})
if fetchErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("VerifyControllerAttachedVolume failed fetching node from API server", fetchErr)
return volumeToMount.GenerateError("VerifyControllerAttachedVolume failed fetching node from API server", fetchErr)
}
if node == nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed(
return volumeToMount.GenerateError(
"VerifyControllerAttachedVolume failed",
fmt.Errorf("Node object retrieved from API server is nil"))
}
......@@ -1111,15 +1185,22 @@ func (og *operationGenerator) GenerateVerifyControllerAttachedVolumeFunc(
glog.Infof(volumeToMount.GenerateMsgDetailed("Controller attach succeeded", fmt.Sprintf("device path: %q", attachedVolume.DevicePath)))
if addVolumeNodeErr != nil {
// On failure, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("VerifyControllerAttachedVolume.MarkVolumeAsAttached failed", addVolumeNodeErr)
return volumeToMount.GenerateError("VerifyControllerAttachedVolume.MarkVolumeAsAttached failed", addVolumeNodeErr)
}
return nil
return nil, nil
}
}
// Volume not attached, return error. Caller will log and retry.
return volumeToMount.GenerateErrorDetailed("Volume not attached according to node status", nil)
}, volumePlugin.GetPluginName(), nil
return volumeToMount.GenerateError("Volume not attached according to node status", nil)
}
return volumetypes.GeneratedOperations{
OperationFunc: verifyControllerAttachedVolumeFunc,
CompleteFunc: util.OperationCompleteHook(volumePlugin.GetPluginName(), "verify_controller_attached_volume"),
EventRecorderFunc: nil, // nil because we do not want to generate event on error
}, nil
}
func (og *operationGenerator) verifyVolumeIsSafeToDetach(
......@@ -1158,17 +1239,17 @@ func (og *operationGenerator) verifyVolumeIsSafeToDetach(
func (og *operationGenerator) GenerateExpandVolumeFunc(
pvcWithResizeRequest *expandcache.PVCWithResizeRequest,
resizeMap expandcache.VolumeResizeMap) (func() error, string, error) {
resizeMap expandcache.VolumeResizeMap) (volumetypes.GeneratedOperations, error) {
volumeSpec := volume.NewSpecFromPersistentVolume(pvcWithResizeRequest.PersistentVolume, false)
volumePlugin, err := og.volumePluginMgr.FindExpandablePluginBySpec(volumeSpec)
if err != nil {
return nil, "", fmt.Errorf("Error finding plugin for expanding volume: %q with error %v", pvcWithResizeRequest.QualifiedName(), err)
return volumetypes.GeneratedOperations{}, fmt.Errorf("Error finding plugin for expanding volume: %q with error %v", pvcWithResizeRequest.QualifiedName(), err)
}
expandFunc := func() error {
expandVolumeFunc := func() (error, error) {
newSize := pvcWithResizeRequest.ExpectedSize
pvSize := pvcWithResizeRequest.PersistentVolume.Spec.Capacity[v1.ResourceStorage]
if pvSize.Cmp(newSize) < 0 {
......@@ -1178,9 +1259,8 @@ func (og *operationGenerator) GenerateExpandVolumeFunc(
pvcWithResizeRequest.CurrentSize)
if expandErr != nil {
glog.Errorf("Error expanding volume %q of plugin %s : %v", pvcWithResizeRequest.QualifiedName(), volumePlugin.GetPluginName(), expandErr)
og.recorder.Eventf(pvcWithResizeRequest.PVC, v1.EventTypeWarning, kevents.VolumeResizeFailed, expandErr.Error())
return expandErr
detailedErr := fmt.Errorf("Error expanding volume %q of plugin %s : %v", pvcWithResizeRequest.QualifiedName(), volumePlugin.GetPluginName(), expandErr)
return detailedErr, detailedErr
}
glog.Infof("ExpandVolume succeeded for volume %s", pvcWithResizeRequest.QualifiedName())
newSize = updatedSize
......@@ -1190,9 +1270,8 @@ func (og *operationGenerator) GenerateExpandVolumeFunc(
updateErr := resizeMap.UpdatePVSize(pvcWithResizeRequest, newSize)
if updateErr != nil {
glog.V(4).Infof("Error updating PV spec capacity for volume %q with : %v", pvcWithResizeRequest.QualifiedName(), updateErr)
og.recorder.Eventf(pvcWithResizeRequest.PVC, v1.EventTypeWarning, kevents.VolumeResizeFailed, updateErr.Error())
return updateErr
detailedErr := fmt.Errorf("Error updating PV spec capacity for volume %q with : %v", pvcWithResizeRequest.QualifiedName(), updateErr)
return detailedErr, detailedErr
}
glog.Infof("ExpandVolume.UpdatePV succeeded for volume %s", pvcWithResizeRequest.QualifiedName())
}
......@@ -1205,24 +1284,32 @@ func (og *operationGenerator) GenerateExpandVolumeFunc(
err := resizeMap.MarkAsResized(pvcWithResizeRequest, newSize)
if err != nil {
glog.Errorf("Error marking pvc %s as resized : %v", pvcWithResizeRequest.QualifiedName(), err)
og.recorder.Eventf(pvcWithResizeRequest.PVC, v1.EventTypeWarning, kevents.VolumeResizeFailed, err.Error())
return err
detailedErr := fmt.Errorf("Error marking pvc %s as resized : %v", pvcWithResizeRequest.QualifiedName(), err)
return detailedErr, detailedErr
}
}
return nil
return nil, nil
}
return expandFunc, volumePlugin.GetPluginName(), nil
eventRecorderFunc := func(err *error) {
if *err != nil {
og.recorder.Eventf(pvcWithResizeRequest.PVC, v1.EventTypeWarning, kevents.VolumeResizeFailed, (*err).Error())
}
}
return volumetypes.GeneratedOperations{
OperationFunc: expandVolumeFunc,
EventRecorderFunc: eventRecorderFunc,
CompleteFunc: util.OperationCompleteHook(volumePlugin.GetPluginName(), "expand_volume"),
}, nil
}
func checkMountOptionSupport(og *operationGenerator, volumeToMount VolumeToMount, plugin volume.VolumePlugin) error {
mountOptions := volume.MountOptionFromSpec(volumeToMount.VolumeSpec)
if len(mountOptions) > 0 && !plugin.SupportsMountOption() {
eventErr, detailedErr := volumeToMount.GenerateError("Mount options are not supported for this volume type", nil)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.UnsupportedMountOption, eventErr.Error())
return detailedErr
return fmt.Errorf("Mount options are not supported for this volume type")
}
return nil
}
......@@ -1238,14 +1325,11 @@ func checkNodeAffinity(og *operationGenerator, volumeToMount VolumeToMount, plug
if pv != nil {
nodeLabels, err := og.volumePluginMgr.Host.GetNodeLabels()
if err != nil {
return volumeToMount.GenerateErrorDetailed("Error getting node labels", err)
return err
}
err = util.CheckNodeAffinity(pv, nodeLabels)
if err != nil {
eventErr, detailedErr := volumeToMount.GenerateError("Storage node affinity check failed", err)
og.recorder.Eventf(volumeToMount.Pod, v1.EventTypeWarning, kevents.FailedMountVolume, eventErr.Error())
return detailedErr
return err
}
}
return nil
......
pkg/volume/util/types/types.go
View file @ e3f8f64c
......@@ -24,3 +24,11 @@ type UniquePodName types.UID
// UniquePVCName defines the type to key pvc off
type UniquePVCName types.UID
// GeneratedOperations contains the operation that is created as well as
// supporting functions required for the operation executor
type GeneratedOperations struct {
OperationFunc func() (eventErr error, detailedErr error)
EventRecorderFunc func(*error)
CompleteFunc func(*error)
}
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