kube

package
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Published: Jan 11, 2024 License: Apache-2.0 Imports: 96 Imported by: 0

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Types

type SharedInformerFactory

type SharedInformerFactory interface {
	internalinterfaces.SharedInformerFactory

	SetNamespaces(namespaces []string)

	// Start initializes all requested informers. They are handled in goroutines
	// which run until the stop channel gets closed.
	Start(stopCh <-chan struct{})

	// Shutdown marks a factory as shutting down. At that point no new
	// informers can be started anymore and Start will return without
	// doing anything.
	//
	// In addition, Shutdown blocks until all goroutines have terminated. For that
	// to happen, the close channel(s) that they were started with must be closed,
	// either before Shutdown gets called or while it is waiting.
	//
	// Shutdown may be called multiple times, even concurrently. All such calls will
	// block until all goroutines have terminated.
	Shutdown()

	// WaitForCacheSync blocks until all started informers' caches were synced
	// or the stop channel gets closed.
	WaitForCacheSync(stopCh <-chan struct{}) map[reflect.Type]bool

	// ForResource gives generic access to a shared informer of the matching type.
	ForResource(resource schema.GroupVersionResource) (clientgoinformers.GenericInformer, error)

	// InternalInformerFor returns the SharedIndexInformer for obj using an internal
	// client.
	InformerFor(obj runtime.Object, newFunc internalinterfaces.NewInformerFunc) cache.SharedIndexInformer

	Admissionregistration() admissionregistration.Interface
	Internal() apiserverinternal.Interface
	Apps() apps.Interface
	Autoscaling() autoscaling.Interface
	Batch() batch.Interface
	Certificates() certificates.Interface
	Coordination() coordination.Interface
	Core() core.Interface
	Discovery() discovery.Interface
	Events() events.Interface
	Extensions() extensions.Interface
	Flowcontrol() flowcontrol.Interface
	Networking() networking.Interface
	Node() node.Interface
	Policy() policy.Interface
	Rbac() rbac.Interface
	Resource() resource.Interface
	Scheduling() scheduling.Interface
	Storage() storage.Interface
}

SharedInformerFactory provides shared informers for resources in all known API group versions.

It is typically used like this:

ctx, cancel := context.Background()
defer cancel()
factory := NewSharedInformerFactory(client, resyncPeriod)
defer factory.WaitForStop()    // Returns immediately if nothing was started.
genericInformer := factory.ForResource(resource)
typedInformer := factory.SomeAPIGroup().V1().SomeType()
factory.Start(ctx.Done())          // Start processing these informers.
synced := factory.WaitForCacheSync(ctx.Done())
for v, ok := range synced {
    if !ok {
        fmt.Fprintf(os.Stderr, "caches failed to sync: %v", v)
        return
    }
}

// Creating informers can also be created after Start, but then
// Start must be called again:
anotherGenericInformer := factory.ForResource(resource)
factory.Start(ctx.Done())

func NewSharedInformerFactory

func NewSharedInformerFactory(client kubernetes.Interface, defaultResync time.Duration) SharedInformerFactory

NewSharedInformerFactory constructs a new instance of sharedInformerFactory for all namespaces.

func NewSharedInformerFactoryWithOptions

func NewSharedInformerFactoryWithOptions(client kubernetes.Interface, defaultResync time.Duration,
	options ...SharedInformerOption) SharedInformerFactory

NewSharedInformerFactoryWithOptions constructs a new instance of a SharedInformerFactory with additional options.

type SharedInformerOption

type SharedInformerOption func(*sharedInformerFactory) *sharedInformerFactory

SharedInformerOption defines the functional option type for SharedInformerFactory.

func WithCustomResyncConfig

func WithCustomResyncConfig(resyncConfig map[v1.Object]time.Duration) SharedInformerOption

WithCustomResyncConfig sets a custom resync period for the specified informer types.

func WithNamespaces

func WithNamespaces(namespaces ...string) SharedInformerOption

WithNamespaces limits the SharedInformerFactory to the specified namespaces.

func WithTweakListOptions

func WithTweakListOptions(tweakListOptions internalinterfaces.TweakListOptionsFunc) SharedInformerOption

WithTweakListOptions sets a custom filter on all listers of the configured SharedInformerFactory.

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