controllerutils

package
v1.81.1 Latest Latest
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 Go to latest Published: Oct 16, 2023 License: Apache-2.0, BSD-2-Clause, MIT, + 1 more Imports: 24 Imported by: 15

Documentation

Index

Constants

View Source 
const DefaultReconciliationTimeout = 3 * time.Minute

DefaultReconciliationTimeout is the default timeout for the context of reconciliation functions.

Variables

View Source 
var EnqueueOnce = source.Func(func(_ context.Context, _ handler.EventHandler, q workqueue.RateLimitingInterface, _ ...predicate.Predicate) error {
	q.Add(reconcile.Request{})
	return nil
})

EnqueueOnce is a source.Source that simply triggers the reconciler once by directly enqueueing an empty reconcile.Request.

View Source 
var HandleOnce = source.Func(func(ctx context.Context, handler handler.EventHandler, queue workqueue.RateLimitingInterface, _ ...predicate.Predicate) error {
	handler.Create(ctx, event.CreateEvent{}, queue)
	return nil
})

HandleOnce is a source.Source that simply triggers the reconciler once by calling 'Create' at the event handler with an empty event.CreateEvent.

Functions

func AddAllRunnables added in v1.57.0 

func AddAllRunnables(mgr manager.Manager, runnables ...manager.Runnable) error

AddAllRunnables loops over the provided runnables and adds them to the manager. It returns an error immediately if adding fails.

func AddFinalizers added in v1.52.0 

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

AddFinalizers ensures that the given finalizer is present in the given object and optimistic locking. If it is not set, it adds it and issues a patch. Note that this is done with a regular merge-patch since strategic merge-patches do not work with custom resources, see https://github.com/kubernetes/kubernetes/issues/105146.

func AddTasks 

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

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

func CreateOrGetAndMergePatch added in v1.25.0 

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

CreateOrGetAndMergePatch creates or gets and patches (using a merge patch) the given object in the Kubernetes cluster.

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

It returns the executed operation and an error.

func CreateOrGetAndStrategicMergePatch added in v1.25.0 

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

CreateOrGetAndStrategicMergePatch creates or gets and patches (using a strategic merge patch) the given object in the Kubernetes cluster.

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

It returns the executed operation and an error.

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 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 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 GetAndCreateOrMergePatch added in v1.23.0 

func GetAndCreateOrMergePatch(ctx context.Context, c client.Client, obj client.Object, f controllerutil.MutateFn, opts ...PatchOption) (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, opts ...PatchOption) (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 GetChildReconciliationContext added in v1.68.0 

func GetChildReconciliationContext(ctx context.Context, timeout time.Duration) (context.Context, context.CancelFunc)

GetChildReconciliationContext returns context with timeout for the controller's secondary client. The resulting context has a timeout equal to half of the timeout for the controller's main client.

func GetControllerInstallationNames added in v1.78.0 

func GetControllerInstallationNames(controllerInstallations []gardencorev1beta1.ControllerInstallation) []string

GetControllerInstallationNames returns a list of the names of the controllerinstallations passed.

func GetMainReconciliationContext added in v1.68.0 

func GetMainReconciliationContext(ctx context.Context, timeout time.Duration) (context.Context, context.CancelFunc)

GetMainReconciliationContext returns a context with timeout for the controller's main client. The resulting context has a timeout equal to the timeout passed in the argument but not more than DefaultReconciliationTimeout.

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 RemoveAllFinalizers added in v1.27.0 

func RemoveAllFinalizers(ctx context.Context, writer client.Writer, obj client.Object) error

RemoveAllFinalizers ensures that the given object has no finalizers with exponential backoff. If any finalizers are set, it removes them and issues a patch.

func RemoveAllTasks 

func RemoveAllTasks(annotations map[string]string)

RemoveAllTasks removes the ShootTasks annotation from the passed map.

func RemoveFinalizers added in v1.52.0 

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

RemoveFinalizers ensures that the given finalizer is not present anymore in the given object and optimistic locking. If it is set, it removes it and issues a patch. Note that this is done with a regular merge-patch since strategic merge-patches do not work with custom resources, see https://github.com/kubernetes/kubernetes/issues/105146.

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 TypedCreateOrUpdate added in v1.34.0 

func TypedCreateOrUpdate(ctx context.Context, c client.Client, scheme *runtime.Scheme, obj *unstructured.Unstructured, alwaysUpdate bool, mutate func() error) (controllerutil.OperationResult, error)

TypedCreateOrUpdate is like controllerutil.CreateOrUpdate, it retrieves the current state of the object from the API server, applies the given mutate func and creates or updates it afterwards. In contrast to controllerutil.CreateOrUpdate it tries to create a new typed object of obj's kind (using the provided scheme) to make typed Get requests in order to leverage the client's cache.

Types

type ControlledRunner added in v1.57.0 

type ControlledRunner struct {
	// Manager is the controller-runtime manager.
	Manager manager.Manager
	// BootstrapRunnables are the runnables that are responsible for bootstrapping tasks. They will be started
	// sequentially in the provided order.
	BootstrapRunnables []manager.Runnable
	// ActualRunnables are the runnables that are responsible for the actual tasks of the controller. They will be added
	// sequentially in the provided order, however they will be started immediately if the manager is already started.
	ActualRunnables []manager.Runnable
}

ControlledRunner is a Runnable for the controller-runtime manager which can be used to control complex start-up sequences of controllers. It allows to first run a set of bootstrap runnables before adding the actual runnables to the manager. When the manager is started, this runner first runs all bootstrapping runnables before adding the actual runnables to the manager.

func (*ControlledRunner) Start added in v1.57.0 

func (c *ControlledRunner) Start(ctx context.Context) error

Start starts the runner.

type MergeFromOption added in v1.73.0 

type MergeFromOption struct {
	client.MergeFromOption
}

MergeFromOption is a patch option that allows to use a `client.MergeFromOption`.

func (MergeFromOption) ApplyToPatchOptions added in v1.73.0 

func (m MergeFromOption) ApplyToPatchOptions(in *PatchOptions)

ApplyToPatchOptions applies the `MergeFromOption`s to the given PatchOption.

type PatchOption added in v1.73.0 

type PatchOption interface {
	// ApplyToPatchOptions applies this configuration to the given patch options.
	ApplyToPatchOptions(*PatchOptions)
}

PatchOption can be used to define options used for calculating and sending patch requests.

type PatchOptions added in v1.73.0 

type PatchOptions struct {
	// contains filtered or unexported fields
}

PatchOptions contains several options used for calculating and sending patch requests.

type SkipEmptyPatch added in v1.73.0 

type SkipEmptyPatch struct{}

SkipEmptyPatch is a patch option that causes empty patches not being sent.

func (SkipEmptyPatch) ApplyToPatchOptions added in v1.73.0 

func (SkipEmptyPatch) ApplyToPatchOptions(in *PatchOptions)

ApplyToPatchOptions applies the skipEmptyPatch option to the given PatchOption.

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