This is revealed by the go/types package, which is stricter than
the Go compiler about unused variables. See also: golang/go#8560
Kubernetes-commit: e04b91facf180c17557a44e8e462858ea2936301
ApplyTo adds the admission chain to the server configuration the method lazily initializes a generic plugin
that is appended to the list of pluginInitializers.
apiserver.Config will hold an instance of SharedInformerFactory to ensure we only have once instance.
The field will be initialized in apisever.SecureServingOptions
Kubernetes-commit: 8cea69aa9812d6627ebdfa4f8b9c1d7624a8f3f5