.WithDeletionTimestamp Filter

[cmwylie19]

Is your feature request related to a problem? Please describe.

UDS-Core is using finalizers to control deletion of managed objects.

They were using When(Object).isDeleted(..) but this no longer works because the finalizer simply Updates instead of deletes because it adds a deletionTimestamp to the object metadata.

Definition of done:

• unit test
• e2e test
• works for mutate, validate, watch, reconcile

Describe the solution you'd like

• Given someone is using Pepr to write an Operator and the operator uses finalizers
• When an update occurs
• Then they can use the WithDeletionTimestamp filter to check if they need to "operate" on the object

Describe alternatives you've considered

(optional) A clear and concise description of any alternative solutions or features you've considered.

Additional context

Add any other context or screenshots about the feature request here.