controllerutils

package
v1.24.3 Latest Latest
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 Go to latest Published: Jul 13, 2021 License: Apache-2.0, BSD-2-Clause, MIT, + 1 more Imports: 30 Imported by: 15

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	// Now is a function for returning the current time.
	Now = time.Now
	// RandomDuration is a function for returning a random duration.
	RandomDuration = utils.RandomDuration
)

Functions

func AddTasks 

func AddTasks(annotations map[string]string, tasksToAdd ...string)

AddTasks adds tasks to the ShootTasks annotation of the passed map.

func BackupBucketFilterFunc 

func BackupBucketFilterFunc(ctx context.Context, c client.Client, seedName string, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

BackupBucketFilterFunc returns a filtering func for the seeds and the given label selector.

func BackupEntryFilterFunc 

func BackupEntryFilterFunc(ctx context.Context, c client.Client, seedName string, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

BackupEntryFilterFunc returns a filtering func for the seeds and the given label selector.

func BackupEntryIsManagedByThisGardenlet added in v1.22.0 

func BackupEntryIsManagedByThisGardenlet(ctx context.Context, c client.Client, backupEntry *gardencorev1beta1.BackupEntry, gc *config.GardenletConfiguration) bool

BackupEntryIsManagedByThisGardenlet checks if the given BackupEntry is managed by this gardenlet by comparing it with the seed name from the GardenletConfiguration or by checking whether the seed labels match the seed selector from the GardenletConfiguration.

func BastionFilterFunc added in v1.23.0 

func BastionFilterFunc(ctx context.Context, c client.Client, seedName string, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

BastionFilterFunc returns a filtering func for the seeds and the given label selector.

func ControllerInstallationFilterFunc 

func ControllerInstallationFilterFunc(seedName string, seedLister gardencorelisters.SeedLister, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

ControllerInstallationFilterFunc returns a filtering func for the seeds and the given label selector.

func CreateOrMergePatch added in v1.24.0 

func CreateOrMergePatch(ctx context.Context, c client.Writer, obj client.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error)

CreateOrMergePatch creates or patches (using a merge patch) the given object in the Kubernetes cluster. The object's desired state is only reconciled with the existing state inside the passed in callback MutateFn, however, the object is not read from the client. This means the object should already be filled with the last-known state if operating on more complex structures (e.g. if the patch is supposed to remove an optional field or section).

The MutateFn is called regardless of creating or patching an object.

It returns the executed operation and an error.

func CreateOrStrategicMergePatch added in v1.24.0 

func CreateOrStrategicMergePatch(ctx context.Context, c client.Writer, obj client.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error)

CreateOrStrategicMergePatch creates or patches (using a strategic merge patch) the given object in the Kubernetes cluster. The object's desired state is only reconciled with the existing state inside the passed in callback MutateFn, however, the object is not read from the client. This means the object should already be filled with the last-known state if operating on more complex structures (e.g. if the patch is supposed to remove an optional field or section).

The MutateFn is called regardless of creating or patching an object.

It returns the executed operation and an error.

func CreateWorker 

func CreateWorker(ctx context.Context, queue workqueue.RateLimitingInterface, resourceType string, reconciler reconcile.Reconciler, waitGroup *sync.WaitGroup, workerCh chan int, injectFn ...inject.Func)

CreateWorker creates and runs a worker thread that just processes items in the specified queue. The worker will run until stopCh is closed. The worker will be added to the wait group when started and marked done when finished. The given context is injected into the `reconciler` if it implements `inject.Stoppable`. Optionally passed inject functions are called with the `reconciler` but potentially returned errors are disregarded.

func DeprecatedCreateWorker 

func DeprecatedCreateWorker(ctx context.Context, queue workqueue.RateLimitingInterface, resourceType string, reconciler func(key string) error, waitGroup *sync.WaitGroup, workerCh chan int)

DeprecatedCreateWorker creates and runs a worker thread that just processes items in the specified queue. The worker will run until stopCh is closed. The worker will be added to the wait group when started and marked done when finished. Deprecated: Use CreateWorker instead.

func DetermineBackupBucketAssociations 

func DetermineBackupBucketAssociations(ctx context.Context, c client.Client, seedName string) ([]string, error)

DetermineBackupBucketAssociations determine the BackupBucket resources which are associated to seed with name <seedName>

func DetermineBackupEntryAssociations 

func DetermineBackupEntryAssociations(ctx context.Context, c client.Client, seedName string) ([]string, error)

DetermineBackupEntryAssociations determine the BackupEntry resources which are associated to seed with name <seedName>

func DetermineBastionAssociations added in v1.23.0 

func DetermineBastionAssociations(ctx context.Context, c client.Client, seedName string) ([]string, error)

DetermineBastionAssociations determine the Bastion resources which are associated to seed with name <seedName>

func DetermineControllerInstallationAssociations 

func DetermineControllerInstallationAssociations(ctx context.Context, c client.Client, seedName string) ([]string, error)

DetermineControllerInstallationAssociations determine the ControllerInstallation resources which are associated to seed with name <seedName>

func DetermineSecretBindingAssociations 

func DetermineSecretBindingAssociations(ctx context.Context, c client.Client, quota *gardencorev1beta1.Quota) ([]string, error)

DetermineSecretBindingAssociations gets a <bindingLister> to determine the SecretBinding resources which are associated to given Quota <obj>.

func DetermineShootAssociations 

func DetermineShootAssociations(ctx context.Context, c client.Client, seedName string) ([]string, error)

DetermineShootAssociations determine the Shoot resources which are associated to seed with name <seedName>

func DetermineShootsAssociatedTo 

func DetermineShootsAssociatedTo(ctx context.Context, gardenClient client.Reader, obj interface{}) ([]string, error)

DetermineShootsAssociatedTo gets a <shootLister> to determine the Shoots resources which are associated to given <obj> (either a CloudProfile, Seed, Secretbinding a or a ExposureClass object).

func EnsureFinalizer 

func EnsureFinalizer(ctx context.Context, reader client.Reader, writer client.Writer, obj client.Object, finalizer string) error

EnsureFinalizer ensures that a finalizer of the given name is set on the given object with exponential backoff. If the finalizer is not set, it adds it to the list of finalizers and patches the remote object. Use PatchAddFinalizers instead, if the controller is able to tolerate conflict errors caused by stale reads.

func GetAndCreateOrMergePatch added in v1.23.0 

func GetAndCreateOrMergePatch(ctx context.Context, c client.Client, obj client.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error)

GetAndCreateOrMergePatch is similar to controllerutil.CreateOrPatch, but does not care about the object's status section. It reads the object from the client, reconciles the desired state with the existing state using the given MutateFn and creates or patches the object (using a merge patch) accordingly.

The MutateFn is called regardless of creating or updating an object.

It returns the executed operation and an error.

func GetAndCreateOrStrategicMergePatch added in v1.23.0 

func GetAndCreateOrStrategicMergePatch(ctx context.Context, c client.Client, obj client.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error)

GetAndCreateOrStrategicMergePatch is similar to controllerutil.CreateOrPatch, but does not care about the object's status section. It reads the object from the client, reconciles the desired state with the existing state using the given MutateFn and creates or patches the object (using a strategic merge patch) accordingly.

The MutateFn is called regardless of creating or updating an object.

It returns the executed operation and an error.

func GetTasks added in v1.3.1 

func GetTasks(annotations map[string]string) []string

GetTasks returns the list of tasks in the ShootTasks annotation.

func HasTask 

func HasTask(annotations map[string]string, task string) bool

HasTask checks if the passed task is part of the ShootTasks annotation.

func LabelsMatchFor 

func LabelsMatchFor(l map[string]string, labelSelector *metav1.LabelSelector) bool

LabelsMatchFor checks whether the given label selector matches for the given set of labels.

func ManagedSeedFilterFunc added in v1.18.0 

func ManagedSeedFilterFunc(ctx context.Context, c client.Client, seedName string, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

ManagedSeedFilterFunc returns a filtering func for ManagedSeeds that checks if the ManagedSeed references a Shoot scheduled on a Seed, for which the gardenlet is responsible..

func MergePatchOrCreate added in v1.23.0 

func MergePatchOrCreate(ctx context.Context, c client.Writer, obj client.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error)

MergePatchOrCreate patches (using a merge patch) or creates the given object in the Kubernetes cluster. The object's desired state is only reconciled with the existing state inside the passed in callback MutateFn, however, the object is not read from the client. This means the object should already be filled with the last-known state if operating on more complex structures (e.g. if the patch is supposed to remove an optional field or section). If you don't have the current state of an object, use GetAndCreateOrMergePatch instead.

The MutateFn is called regardless of creating or patching an object.

It returns the executed operation and an error.

func PatchAddFinalizers added in v1.18.0 

func PatchAddFinalizers(ctx context.Context, writer client.Writer, obj client.Object, finalizers ...string) error

PatchAddFinalizers adds the given finalizers to the object via a patch request.

func PatchRemoveFinalizers added in v1.12.0 

func PatchRemoveFinalizers(ctx context.Context, writer client.Writer, obj client.Object, finalizers ...string) error

PatchRemoveFinalizers removes the given finalizers from the object via a patch request.

func ReconcileOncePer24hDuration added in v1.10.2 

func ReconcileOncePer24hDuration(objectMeta metav1.ObjectMeta, observedGeneration int64, lastOperation *gardencorev1beta1.LastOperation) time.Duration

ReconcileOncePer24hDuration returns the duration until the next reconciliation should happen while respecting that only one reconciliation should happen per 24h. If the deletion timestamp is set or the generation has changed or the last operation does not indicate success or indicates that the last reconciliation happened more than 24h ago then 0 will be returned.

func RemoveAllTasks 

func RemoveAllTasks(annotations map[string]string)

RemoveAllTasks removes the ShootTasks annotation from the passed map.

func RemoveFinalizer 

func RemoveFinalizer(ctx context.Context, reader client.Reader, writer client.Writer, obj client.Object, finalizer string) error

RemoveFinalizer ensures that the given finalizer is not present anymore in the given object with exponential backoff. If it is set, it removes it and issues a patch. Use PatchRemoveFinalizers instead, if the controller is able to tolerate conflict errors caused by stale reads.

func RemoveTasks added in v1.3.1 

func RemoveTasks(annotations map[string]string, tasksToRemove ...string)

RemoveTasks removes tasks from the ShootTasks annotation of the passed map.

func SeedFilterFunc 

func SeedFilterFunc(seedName string, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

SeedFilterFunc returns a filtering func for the seeds and the given label selector.

func SeedLabelsMatch added in v1.1.0 

func SeedLabelsMatch(seedLister gardencorelisters.SeedLister, seedName string, labelSelector *metav1.LabelSelector) bool

SeedLabelsMatch fetches the given seed via a lister by its name and then checks whether the given label selector matches the seed labels.

func ShootFilterFunc 

func ShootFilterFunc(seedName string, seedLister gardencorelisters.SeedLister, labelSelector *metav1.LabelSelector) func(obj interface{}) bool

ShootFilterFunc returns a filtering func for the seeds and the given label selector.

func ShootIsManagedByThisGardenlet added in v1.15.0 

func ShootIsManagedByThisGardenlet(shoot *gardencorev1beta1.Shoot, gc *config.GardenletConfiguration, seedLister gardencorelisters.SeedLister) bool

ShootIsManagedByThisGardenlet checks if the given shoot is managed by this gardenlet by comparing it with the seed name from the GardenletConfiguration or by checking whether the seed labels match the seed selector from the GardenletConfiguration.

func StrategicMergePatchOrCreate added in v1.23.0 

func StrategicMergePatchOrCreate(ctx context.Context, c client.Writer, obj client.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error)

StrategicMergePatchOrCreate patches (using a strategic merge patch) or creates the given object in the Kubernetes cluster. The object's desired state is only reconciled with the existing state inside the passed in callback MutateFn, however, the object is not read from the client. This means the object should already be filled with the last-known state if operating on more complex structures (e.g. if the patch is supposed to remove an optional field or section). If you don't have the current state of an object, use GetAndCreateOrStrategicMergePatch instead.

The MutateFn is called regardless of creating or patching an object.

It returns the executed operation and an error.

Types

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