[Question] It looks like BuildConfigFromFlags already do the fall back to incluster config, why we need to do that explicitly?

[linearregression]

In controller:

tgik-controller/tgik-controller.go

Lines 31 to 35 in 97e32ef

	if kubeconfig != "" {
	config, err = clientcmd.BuildConfigFromFlags("", kubeconfig)
	} else {
	config, err = rest.InClusterConfig()
	}

But it looks like:
BuildConfigFromFlags already do the fall back to incluster config as in
https://github.com/kubernetes/client-go/blob/2f45bcbf57f0cfde510a33e7d94a4c89955ff17b/tools/clientcmd/client_config.go#L529-L534