/
crd_controller.go
832 lines (722 loc) · 29.3 KB
/
crd_controller.go
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/*
* Copyright 2019 NetApp, Inc. All Rights Reserved.
*/
package crd
import (
"encoding/json"
"fmt"
"io/ioutil"
"time"
log "github.com/sirupsen/logrus"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/kubernetes/scheme"
typedcorev1 "k8s.io/client-go/kubernetes/typed/core/v1"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/cache"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/tools/record"
"k8s.io/client-go/util/workqueue"
clik8sclient "github.com/netapp/trident/cli/k8s_client"
"github.com/netapp/trident/config"
"github.com/netapp/trident/core"
"github.com/netapp/trident/frontend"
tridentv1 "github.com/netapp/trident/persistent_store/crd/apis/netapp/v1"
"github.com/netapp/trident/persistent_store/crd/client/clientset/versioned"
clientset "github.com/netapp/trident/persistent_store/crd/client/clientset/versioned"
tridentscheme "github.com/netapp/trident/persistent_store/crd/client/clientset/versioned/scheme"
"github.com/netapp/trident/persistent_store/crd/client/informers/externalversions"
trident_informers "github.com/netapp/trident/persistent_store/crd/client/informers/externalversions"
informers "github.com/netapp/trident/persistent_store/crd/client/informers/externalversions/netapp/v1"
trident_informers_v1 "github.com/netapp/trident/persistent_store/crd/client/informers/externalversions/netapp/v1"
listers "github.com/netapp/trident/persistent_store/crd/client/listers/netapp/v1"
"github.com/netapp/trident/storage"
)
type CrdPlugin interface {
frontend.Plugin
}
const controllerAgentName = "trident-crd-controller"
const (
// SuccessSynced is used as part of the Event 'reason' when a CRD is synced
SuccessSynced = "Synced"
// MessageResourceSynced is the message used for an Event fired when a CRD is synced successfully
MessageResourceSynced = "CRD synced successfully"
)
// TridentCrdController is the controller implementation for Trident's CRD resources
type TridentCrdController struct {
// orchestrator is a reference to the core orchestrator
orchestrator core.Orchestrator
// kubeClientset is a standard kubernetes clientset
kubeClientset kubernetes.Interface
// crdClientset is a clientset for our own API group
crdClientset clientset.Interface
crdControllerStopChan chan struct{}
crdInformerFactory externalversions.SharedInformerFactory
crdInformer informers.Interface
// TridentBackend CRD handling
backendsLister listers.TridentBackendLister
backendsSynced cache.InformerSynced
// TridentNode CRD handling
nodesLister listers.TridentNodeLister
nodesSynced cache.InformerSynced
// TridentStorageClass CRD handling
storageClassesLister listers.TridentStorageClassLister
storageClassesSynced cache.InformerSynced
// TridentTransaction CRD handling
transactionsLister listers.TridentTransactionLister
transactionsSynced cache.InformerSynced
// TridentVersion CRD handling
versionsLister listers.TridentVersionLister
versionsSynced cache.InformerSynced
// TridentVolume CRD handling
volumesLister listers.TridentVolumeLister
volumesSynced cache.InformerSynced
// TridentSnapshot CRD handling
snapshotsLister listers.TridentSnapshotLister
snapshotsSynced cache.InformerSynced
// workqueue is a rate limited work queue. This is used to queue work to be
// processed instead of performing it as soon as a change happens. This
// means we can ensure we only process a fixed amount of resources at a
// time, and makes it easy to ensure we are never processing the same item
// simultaneously in two different workers.
workqueue workqueue.RateLimitingInterface
// recorder is an event recorder for recording Event resources to the Kubernetes API.
recorder record.EventRecorder
}
func NewTridentCrdController(o core.Orchestrator, apiServerIP, kubeConfigPath string) (*TridentCrdController, error) {
kubeConfig, err := clientcmd.BuildConfigFromFlags(apiServerIP, kubeConfigPath)
if err != nil {
return nil, err
}
// Create the CLI-based Kubernetes client
client, err := clik8sclient.NewKubectlClient("", 30*time.Second)
if err != nil {
return nil, fmt.Errorf("could not initialize Kubernetes client; %v", err)
}
// when running in binary mode, we use the current namespace as determined by the CLI client
return newTridentCrdController(o, kubeConfig, client.Namespace())
}
func NewTridentCrdControllerInCluster(o core.Orchestrator) (*TridentCrdController, error) {
kubeConfig, err := rest.InClusterConfig()
if err != nil {
return nil, err
}
// when running in a pod, we use the Trident pod's namespace
bytes, err := ioutil.ReadFile(config.TridentNamespaceFile)
if err != nil {
log.WithFields(log.Fields{
"error": err,
"namespaceFile": config.TridentNamespaceFile,
}).Fatal("Trident CRD Controller frontend failed to obtain Trident's namespace.")
}
tridentNamespace := string(bytes)
return newTridentCrdController(o, kubeConfig, tridentNamespace)
}
// newTridentCrdController returns a new Trident CRD controller frontend
func newTridentCrdController(
orchestrator core.Orchestrator, kubeConfig *rest.Config, tridentNamespace string,
) (*TridentCrdController, error) {
kubeClientset, err := kubernetes.NewForConfig(kubeConfig)
if err != nil {
return nil, err
}
crdClientset, err := versioned.NewForConfig(kubeConfig)
if err != nil {
return nil, err
}
return newTridentCrdControllerImpl(orchestrator, tridentNamespace, kubeClientset, crdClientset)
}
// newTridentCrdControllerImpl returns a new Trident CRD controller frontend
func newTridentCrdControllerImpl(
orchestrator core.Orchestrator, tridentNamespace string,
kubeClientset kubernetes.Interface, crdClientset clientset.Interface,
) (*TridentCrdController, error) {
log.WithFields(log.Fields{
"namespace": tridentNamespace,
}).Info("Initializing Trident CRD controller frontend.")
crdInformerFactory := trident_informers.NewSharedInformerFactory(crdClientset, time.Second*30)
crdInformer := trident_informers_v1.New(crdInformerFactory, tridentNamespace, nil)
backendInformer := crdInformer.TridentBackends()
nodeInformer := crdInformer.TridentNodes()
storageClassInformer := crdInformer.TridentStorageClasses()
transactionInformer := crdInformer.TridentTransactions()
versionInformer := crdInformer.TridentVersions()
volumeInformer := crdInformer.TridentVolumes()
snapshotInformer := crdInformer.TridentSnapshots()
// Create event broadcaster
// Add our types to the default Kubernetes Scheme so Events can be logged.
utilruntime.Must(tridentscheme.AddToScheme(scheme.Scheme))
log.Info("Creating event broadcaster.")
eventBroadcaster := record.NewBroadcaster()
eventBroadcaster.StartLogging(log.Infof)
eventBroadcaster.StartRecordingToSink(&typedcorev1.EventSinkImpl{Interface: kubeClientset.CoreV1().Events("")})
recorder := eventBroadcaster.NewRecorder(scheme.Scheme, corev1.EventSource{Component: controllerAgentName})
controller := &TridentCrdController{
orchestrator: orchestrator,
kubeClientset: kubeClientset,
crdClientset: crdClientset,
crdControllerStopChan: make(chan struct{}),
crdInformerFactory: crdInformerFactory,
crdInformer: crdInformer,
backendsLister: backendInformer.Lister(),
backendsSynced: backendInformer.Informer().HasSynced,
nodesLister: nodeInformer.Lister(),
nodesSynced: nodeInformer.Informer().HasSynced,
storageClassesLister: storageClassInformer.Lister(),
storageClassesSynced: storageClassInformer.Informer().HasSynced,
transactionsLister: transactionInformer.Lister(),
transactionsSynced: transactionInformer.Informer().HasSynced,
versionsLister: versionInformer.Lister(),
versionsSynced: versionInformer.Informer().HasSynced,
volumesLister: volumeInformer.Lister(),
volumesSynced: volumeInformer.Informer().HasSynced,
snapshotsLister: snapshotInformer.Lister(),
snapshotsSynced: snapshotInformer.Informer().HasSynced,
workqueue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "TridentBackends"),
recorder: recorder,
}
// Set up event handlers for when our Trident CRDs change
log.Info("Setting up CRD event handlers.")
// TODO RIPPY not using this right now, which means, no support for a 'kubectl edit' of a backend
useComplicatedBackendUpdateHandling := false
if useComplicatedBackendUpdateHandling {
backendInformer.Informer().AddEventHandler(cache.ResourceEventHandlerFuncs{
AddFunc: controller.enqueueCRD,
UpdateFunc: func(old, new interface{}) {
newBackend := new.(*tridentv1.TridentBackend)
oldBackend := old.(*tridentv1.TridentBackend)
if !newBackend.ObjectMeta.DeletionTimestamp.IsZero() {
log.WithFields(log.Fields{
"newBackend.ResourceVersion": newBackend.ResourceVersion,
"newBackend.ObjectMeta.DeletionTimestamp": newBackend.ObjectMeta.DeletionTimestamp,
"oldBackend.ResourceVersion": oldBackend.ResourceVersion,
}).Debug("backendInformer#UpdateFunc backend CRD object is deleting")
b, err := controller.orchestrator.GetBackend(newBackend.BackendName)
if err != nil {
if core.IsNotFoundError(err) {
// it's gone from core, has no volumes, time to let it go
log.Debug("backendInformer#UpdateFunc no reason to keep CRD object, removing finalizers for deletion")
controller.removeFinalizers(newBackend, false)
return
} else {
log.Warnf("backendInformer#UpdateFunc could not find backend %v; error: %v", newBackend.BackendName, err.Error())
return
}
}
if b == nil {
log.Warnf("backendInformer#UpdateFunc could not find backend %v", newBackend.BackendName)
return
}
log.WithFields(log.Fields{
"b.State.IsDeleting()": b.State.IsDeleting(),
"len(b.Volumes)": len(b.Volumes),
"newBackend.Name": newBackend.Name,
"newBackend.BackendName": newBackend.BackendName,
"newBackend.BackendUUID": newBackend.BackendUUID,
"b.Name": b.Name,
"b.BackendUUID": b.BackendUUID,
}).Debug("backendInformer#UpdateFunc found backend object in core")
if !b.State.IsDeleting() {
log.Debug("backendInformer#UpdateFunc invoking deletion logic in core")
controller.deleteCRD(newBackend)
return
} else {
log.Debug("backendInformer#UpdateFunc waiting")
return
}
}
if newBackend.ResourceVersion == oldBackend.ResourceVersion {
log.WithFields(log.Fields{
"newBackend.ResourceVersion": newBackend.ResourceVersion,
"newBackend.ObjectMeta.DeletionTimestamp": newBackend.ObjectMeta.DeletionTimestamp,
"oldBackend.ResourceVersion": oldBackend.ResourceVersion,
}).Debug("backendInformer#UpdateFunc nothing to do")
return
}
if newBackend.CurrentState().IsFailed() {
log.Debug("backendInformer#UpdateFunc ignoring this update because newBackend.CurrentState().IsFailed() was already processed through core")
return
}
controller.enqueueCRD(new)
},
DeleteFunc: func(obj interface{}) {
backend := obj.(*tridentv1.TridentBackend)
// TODO this is called as it's about to be purged from the system (after any finalizers have been removed)
log.WithFields(log.Fields{
"backend.ResourceVersion": backend.ResourceVersion,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("backendInformer#DeleteFunc")
//controller.deleteCRD(obj) // TODO not needed? it's already deleted above
},
})
}
informers := []cache.SharedIndexInformer{
backendInformer.Informer(), // TODO what we do depends on useComplicatedBackendUpdateHandling above
nodeInformer.Informer(),
storageClassInformer.Informer(),
transactionInformer.Informer(),
versionInformer.Informer(),
volumeInformer.Informer(),
snapshotInformer.Informer(),
}
for _, informer := range informers {
informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
UpdateFunc: func(oldCrd, newCrd interface{}) {
controller.removeFinalizers(newCrd, false)
},
})
}
return controller, nil
}
func (c *TridentCrdController) Activate() error {
log.Info("Activating CRD frontend.")
if c.crdControllerStopChan != nil {
c.crdInformerFactory.Start(c.crdControllerStopChan)
go c.Run(1, c.crdControllerStopChan)
}
return nil
}
func (c *TridentCrdController) Deactivate() error {
log.Info("Deactivating CRD frontend.")
if c.crdControllerStopChan != nil {
close(c.crdControllerStopChan)
}
return nil
}
func (c *TridentCrdController) GetName() string {
return string(config.ContextCRD)
}
func (c *TridentCrdController) Version() string {
// TODO implement me
return "0.1"
}
// Run will set up the event handlers for types we are interested in, as well
// as syncing informer caches and starting workers. It will block until stopCh
// is closed, at which point it will shutdown the workqueue and wait for
// workers to finish processing their current work items.
func (c *TridentCrdController) Run(threadiness int, stopCh <-chan struct{}) error {
log.WithFields(log.Fields{
"threadiness": threadiness,
}).Debug("TridentCrdController#Run")
defer utilruntime.HandleCrash()
defer c.workqueue.ShutDown()
// Start the informer factories to begin populating the informer caches
log.Info("Starting Trident CRD controller.")
// Wait for the caches to be synced before starting workers
log.Info("Waiting for informer caches to sync.")
if ok := cache.WaitForCacheSync(stopCh,
c.backendsSynced,
c.nodesSynced,
c.storageClassesSynced,
c.transactionsSynced,
c.versionsSynced,
c.volumesSynced,
c.snapshotsSynced); !ok {
waitErr := fmt.Errorf("failed to wait for caches to sync")
log.Errorf("Error: %v", waitErr)
return waitErr
}
// Launch workers to process CRD resources
log.Info("Starting workers.")
for i := 0; i < threadiness; i++ {
go wait.Until(c.runWorker, time.Second, stopCh)
}
log.Info("Started workers.")
<-stopCh
log.Info("Shutting down workers.")
return nil
}
// runWorker is a long-running function that will continually call the
// processNextWorkItem function in order to read and process a message on the
// workqueue.
func (c *TridentCrdController) runWorker() {
log.Debug("TridentCrdController runWorker started.")
for c.processNextWorkItem() {
}
}
// processNextWorkItem will read a single work item off the workqueue and
// attempt to process it, by calling the syncHandler.
func (c *TridentCrdController) processNextWorkItem() bool {
log.Debug("TridentCrdController#processNextWorkItem")
obj, shutdown := c.workqueue.Get()
log.WithFields(log.Fields{
"obj": obj,
"shutdown": shutdown,
}).Debug("TridentCrdController#processNextWorkItem found")
if shutdown {
log.Debug("TridentCrdController#processNextWorkItem shutting down")
return false
}
// We wrap this block in a func so we can defer c.workqueue.Done.
err := func(obj interface{}) error {
// We call Done here so the workqueue knows we have finished processing
// this item. We also must remember to call Forget if we do not want
// this work item being re-queued. For example, we do not call Forget if
// a transient error occurs, instead the item is put back on the
// workqueue and attempted again after a back-off period.
defer c.workqueue.Done(obj)
var key string
var ok bool
// We expect strings from the workqueue in the form namespace/name.
// We do this as the delayed nature of the workqueue means the items in
// the informer cache may actually be more up to date that when the item
// was initially put onto the workqueue.
if key, ok = obj.(string); !ok {
// As the item in the workqueue is actually invalid, we call
// Forget here else we'd go into a loop of attempting to
// process a work item that is invalid.
c.workqueue.Forget(obj)
utilruntime.HandleError(fmt.Errorf("expected string in workqueue but got %#v", obj))
return nil
}
// Run the syncHandler, passing it the namespace/name string of the resource to be synced.
if err := c.syncHandler(key); err != nil {
// Put the item back on the workqueue to handle any transient errors.
c.workqueue.AddRateLimited(key)
return fmt.Errorf("error syncing '%s': %s, requeuing", key, err.Error())
}
// Finally, if no error occurs we Forget this item so it does not get queued again until another change happens.
c.workqueue.Forget(obj)
log.Infof("Successfully synced '%s'", key)
return nil
}(obj)
if err != nil {
utilruntime.HandleError(err)
return true
}
return true
}
// syncHandler compares the actual state with the desired, and attempts to converge the two.
// It then updates the Status block of the Foo resource with the current status of the resource.
func (c *TridentCrdController) syncHandler(key string) error {
log.WithFields(log.Fields{
"key": key,
}).Debug("TridentCrdController#syncHandler")
// Convert the namespace/name string into a distinct namespace and name
namespace, name, err := cache.SplitMetaNamespaceKey(key)
if err != nil {
utilruntime.HandleError(fmt.Errorf("invalid resource key: %s", key))
return nil
}
// Get the CRD resource with this namespace/name
backend, err := c.backendsLister.TridentBackends(namespace).Get(name)
if err != nil {
// The resource may no longer exist, in which case we stop processing.
if errors.IsNotFound(err) {
utilruntime.HandleError(fmt.Errorf("object '%s' in work queue no longer exists", key))
return nil
}
return err
}
if !backend.ObjectMeta.DeletionTimestamp.IsZero() {
log.WithFields(log.Fields{
"key": key,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("TridentCrdController#syncHandler CRD object is being deleted, not updating.")
// TODO refactor the "updatebackend" logic above to a shared set of code?
//c.removeFinalizers(backend, false)
return nil
}
// Finally, we update the CRD
err = c.updateBackend(backend)
if err != nil {
return err
}
// TODO reenable this eventually?
// it's causing trouble with unit tests; seems to work OK with real code but not sure we actually want this
//c.recorder.Event(backend, corev1.EventTypeNormal, SuccessSynced, MessageResourceSynced)
return nil
}
func (c *TridentCrdController) updateBackend(backend *tridentv1.TridentBackend) error {
log.WithFields(log.Fields{
"backend.Name": backend.Name,
"backend.BackendName": backend.BackendName,
"backend.BackendUUID": backend.BackendUUID,
"backend.State": backend.State,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("TridentCrdController#updateBackend")
if !backend.ObjectMeta.DeletionTimestamp.IsZero() {
log.WithFields(log.Fields{
"backend.Name": backend.Name,
"backend.BackendName": backend.BackendName,
"backend.BackendUUID": backend.BackendUUID,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("TridentCrdController#updateBackend CRD object is being deleted, not updating.")
// TODO refactor the "updatebackend" logic above to a shared set of code?
//c.removeFinalizers(backend, false)
return nil
}
if backend.CurrentState().IsDeleting() {
log.WithFields(log.Fields{
"backend.Name": backend.Name,
"backend.BackendName": backend.BackendName,
"backend.BackendUUID": backend.BackendUUID,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("TridentCrdController#updateBackend CRD object is being deleted, not updating.")
// TODO refactor the "updatebackend" logic above to a shared set of code?
//c.removeFinalizers(backend, false)
return nil
}
backendCopy := backend.DeepCopy()
_, err := c.crdClientset.TridentV1().TridentBackends(backend.Namespace).Update(backendCopy)
rawJSONData := backend.Config.Raw
log.WithFields(log.Fields{
"Name": backend.Name,
"BackendName": backend.BackendName,
"string(backend.Config.Raw)": string(rawJSONData),
}).Debug("Updating backend in core.")
psbc := &storage.PersistentStorageBackendConfig{}
err = json.Unmarshal(rawJSONData, &psbc)
if err != nil {
log.Errorf("could not parse JSON backend configuration: %v", err)
return err
}
var marshalErr error
var configJSON []byte
if psbc.AWSConfig != nil {
configJSON, marshalErr = json.Marshal(psbc.AWSConfig)
} else if psbc.EseriesConfig != nil {
configJSON, marshalErr = json.Marshal(psbc.EseriesConfig)
} else if psbc.FakeStorageDriverConfig != nil {
configJSON, marshalErr = json.Marshal(psbc.FakeStorageDriverConfig)
} else if psbc.OntapConfig != nil {
configJSON, marshalErr = json.Marshal(psbc.OntapConfig)
} else if psbc.SolidfireConfig != nil {
configJSON, marshalErr = json.Marshal(psbc.SolidfireConfig)
} else {
err = fmt.Errorf("problem parsing JSON backend configuration")
log.Errorf("%v", err)
return err
}
if marshalErr != nil {
log.Errorf("could not marshall JSON backend configuration: %v", marshalErr)
return marshalErr
}
log.WithFields(log.Fields{
"configJSON": string(configJSON),
}).Debug("Parsed into...")
result, err := c.orchestrator.UpdateBackendByBackendUUID(backend.BackendName, string(configJSON), backend.BackendUUID)
log.WithFields(log.Fields{
"err": err,
"backend": result,
}).Debug("Result")
return err
}
// enqueueCRD takes a Foo resource and converts it into a namespace/name
// string which is then put onto the work queue. This method should *not* be
// passed resources of any type other than Foo.
func (c *TridentCrdController) enqueueCRD(obj interface{}) {
log.WithFields(log.Fields{
"obj": obj,
}).Debug("TridentCrdController#enqueueCRD")
var key string
var err error
if key, err = cache.MetaNamespaceKeyFunc(obj); err != nil {
utilruntime.HandleError(err)
return
}
c.workqueue.Add(key)
}
func (c *TridentCrdController) deleteCRD(obj interface{}) {
backend := obj.(*tridentv1.TridentBackend)
log.WithFields(log.Fields{
"backend.ResourceVersion": backend.ResourceVersion,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("TridentCrdController#deleteCRD")
if backend.ObjectMeta.DeletionTimestamp.IsZero() {
// TODO shouldn't happen?
log.Info("deleteCRD DeletionTimestamp is zero, should not happen???")
return
}
if _, getBackendErr := c.orchestrator.GetBackend(backend.BackendName); core.IsNotFoundError(getBackendErr) {
log.WithFields(log.Fields{
"BackendName": backend.BackendName,
}).Warn("Could not find backend.")
} else {
log.WithFields(log.Fields{
"BackendName": backend.BackendName,
}).Debug("Deleting backend.")
if deleteBackendErr := c.orchestrator.DeleteBackend(backend.BackendName); core.IsNotFoundError(deleteBackendErr) {
log.WithFields(log.Fields{
"BackendName": backend.BackendName,
}).Warn("Could not find backend.")
}
}
}
// removeFinalizers removes Trident's finalizers from Trident CRD objects
func (c *TridentCrdController) removeFinalizers(obj interface{}, force bool) {
/*
log.WithFields(log.Fields{
"obj": obj,
"force": force,
}).Debug("removeFinalizers")
*/
switch crd := obj.(type) {
case *tridentv1.TridentBackend:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeBackendFinalizers(crd)
}
case *tridentv1.TridentNode:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeNodeFinalizers(crd)
}
case *tridentv1.TridentStorageClass:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeStorageClassFinalizers(crd)
}
case *tridentv1.TridentTransaction:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeTransactionFinalizers(crd)
}
case *tridentv1.TridentVersion:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeVersionFinalizers(crd)
}
case *tridentv1.TridentVolume:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeVolumeFinalizers(crd)
}
case *tridentv1.TridentSnapshot:
if force || !crd.ObjectMeta.DeletionTimestamp.IsZero() {
c.removeSnapshotFinalizers(crd)
}
default:
log.Warnf("unexpected type %T", crd)
}
}
// removeBackendFinalizers removes Trident's finalizers from TridentBackend CRD objects
func (c *TridentCrdController) removeBackendFinalizers(backend *tridentv1.TridentBackend) {
log.WithFields(log.Fields{
"backend.ResourceVersion": backend.ResourceVersion,
"backend.ObjectMeta.DeletionTimestamp": backend.ObjectMeta.DeletionTimestamp,
}).Debug("removeBackendFinalizers")
if backend.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
backendCopy := backend.DeepCopy()
backendCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentBackends(backend.Namespace).Update(backendCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}
// removeNodeFinalizers removes Trident's finalizers from TridentNode CRD objects
func (c *TridentCrdController) removeNodeFinalizers(node *tridentv1.TridentNode) {
log.WithFields(log.Fields{
"node.ResourceVersion": node.ResourceVersion,
"node.ObjectMeta.DeletionTimestamp": node.ObjectMeta.DeletionTimestamp,
}).Debug("removeNodeFinalizers")
if node.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
nodeCopy := node.DeepCopy()
nodeCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentNodes(node.Namespace).Update(nodeCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}
// removeStorageClassFinalizers removes Trident's finalizers from TridentStorageClass CRD objects
func (c *TridentCrdController) removeStorageClassFinalizers(sc *tridentv1.TridentStorageClass) {
log.WithFields(log.Fields{
"sc.ResourceVersion": sc.ResourceVersion,
"sc.ObjectMeta.DeletionTimestamp": sc.ObjectMeta.DeletionTimestamp,
}).Debug("removeStorageClassFinalizers")
if sc.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
scCopy := sc.DeepCopy()
scCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentStorageClasses(sc.Namespace).Update(scCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}
// removeTransactionFinalizers removes Trident's finalizers from TridentTransaction CRD objects
func (c *TridentCrdController) removeTransactionFinalizers(tx *tridentv1.TridentTransaction) {
log.WithFields(log.Fields{
"tx.ResourceVersion": tx.ResourceVersion,
"tx.ObjectMeta.DeletionTimestamp": tx.ObjectMeta.DeletionTimestamp,
}).Debug("removeTransactionFinalizers")
if tx.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
txCopy := tx.DeepCopy()
txCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentTransactions(tx.Namespace).Update(txCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}
// removeVersionFinalizers removes Trident's finalizers from TridentVersion CRD objects
func (c *TridentCrdController) removeVersionFinalizers(v *tridentv1.TridentVersion) {
log.WithFields(log.Fields{
"v.ResourceVersion": v.ResourceVersion,
"v.ObjectMeta.DeletionTimestamp": v.ObjectMeta.DeletionTimestamp,
}).Debug("removeVersionFinalizers")
if v.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
vCopy := v.DeepCopy()
vCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentVersions(v.Namespace).Update(vCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}
// removeVolumeFinalizers removes Trident's finalizers from TridentVolume CRD objects
func (c *TridentCrdController) removeVolumeFinalizers(vol *tridentv1.TridentVolume) {
log.WithFields(log.Fields{
"vol.ResourceVersion": vol.ResourceVersion,
"vol.ObjectMeta.DeletionTimestamp": vol.ObjectMeta.DeletionTimestamp,
}).Debug("removeVolumeFinalizers")
if vol.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
volCopy := vol.DeepCopy()
volCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentVolumes(vol.Namespace).Update(volCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}
// removeSnapshotFinalizers removes Trident's finalizers from TridentSnapshot CRD objects
func (c *TridentCrdController) removeSnapshotFinalizers(snap *tridentv1.TridentSnapshot) {
log.WithFields(log.Fields{
"snap.ResourceVersion": snap.ResourceVersion,
"snap.ObjectMeta.DeletionTimestamp": snap.ObjectMeta.DeletionTimestamp,
}).Debug("removeSnapshotFinalizers")
if snap.HasTridentFinalizers() {
log.Debug("Has finalizers, removing them.")
snapCopy := snap.DeepCopy()
snapCopy.RemoveTridentFinalizers()
_, err := c.crdClientset.TridentV1().TridentSnapshots(snap.Namespace).Update(snapCopy)
if err != nil {
log.Errorf("Problem removing finalizers: %v", err)
return
}
} else {
log.Debug("No finalizers to remove.")
}
}