This patch adds few unit tests to assert that the webhook accessors are
only recreate when they are update in the api-server.
In order to test this feature we had to make few changes to wb manager
that allows us to mock `NewValidatingWebhookAccessor` external function.
Kubernetes-commit: 7d3d44af77679ed488b28dc839d02a8258fd3adc
Add a "lazy" type to track when an update is needed. It uses a nested
locking technique to avoid extra evaluation calls.
Kubernetes-commit: 5a1091d88d95bd1dd5c27f2c72cee4ecb4219dda
- unify test cases
- remove broken VersionedAttributes override abstraction
This overriding had no effect. The versioned.Attributes were never
used as admission.Attributes.Better make the versioned objects
explicit than hiding them under a wrong abstraction.
- remove wrapping of scheme.Convert
- internalize conversion package
Kubernetes-commit: 72f8a369d021037ca6179339d50ad595b5462a6c