cache

func ApplyStripAnnotationsTransform ¶

func ApplyStripAnnotationsTransform(obj client.Object) error

ApplyStripAnnotationsTransform applies the strip transform directly to an object. This is a convenience function for cases where you need to strip fields from an object outside of the cache transform context.

Note: This function never returns an error in practice, but returns error to satisfy the TransformFunc interface.

func StripAnnotations ¶

func StripAnnotations() toolscache.TransformFunc

StripAnnotations returns a cache transform function that removes memory-heavy annotation fields that aren't needed for controller operations. This significantly reduces memory usage in informer caches by removing: - kubectl.kubernetes.io/last-applied-configuration annotation (can be very large)

Use this function as a DefaultTransform in controller-runtime cache.Options to reduce memory overhead across all cached objects.

Example:

cacheOptions := cache.Options{
    DefaultTransform: cacheutil.StripAnnotations(),
}

func StripManagedFieldsAndAnnotations ¶

func StripManagedFieldsAndAnnotations() toolscache.TransformFunc

StripManagedFieldsAndAnnotations returns a cache transform function that removes memory-heavy fields that aren't needed for controller operations. This significantly reduces memory usage in informer caches by removing: - Managed fields (can be several KB per object) - kubectl.kubernetes.io/last-applied-configuration annotation (can be very large)

Use this function as a DefaultTransform in controller-runtime cache.Options to reduce memory overhead across all cached objects.

Example:

cacheOptions := cache.Options{
    DefaultTransform: cacheutil.StripManagedFieldsAndAnnotations(),
}