The cr-client.go is a lib required by mockgen tests. This lib is created from the controller-runtime client. With change in controller-runtime, we need to update the cr-client.go file as well. Using the command line, the following command can be used to update the cr-client.go file:

$ mockgen -package client -destination=cr-client.go sigs.k8s.io/controller-runtime/pkg/client Client,StatusWriter,Reader,Writer

To make sure you have mockgen locally, can run the following command:

$ make ensure-mockgen