controllers enabled by default should define feature gates in
ControllerDescriptor.requiredFeatureGates and not during a descriptor
registration in NewControllerDescriptors
- These metadata can be used to handle controllers in a generic way.
- This enables showing feature gated controllers in kube-controller-manager's help.
- It is possible to obtain a controllerName in the InitFunc so it can be passed down to and used by the controller.
metadata about a controller:
- name
- requiredFeatureGates
- isDisabledByDefault
- isCloudProviderController