Allow in-cluster config for oc

Because we set the default env value to empty, we can't use the default
in cluster config for 'oc' (when you run inside a container, oc works).
It's really important for container integration scenarios that oc uses
the service account token by default, just like kubeconfig.

pkg/cmd/util/clientcmd/factory.go

@@ -36,12 +36,11 @@ import (
 // New creates a default Factory for commands that should share identical server
 // connection behavior. Most commands should use this method to get a factory.
 func New(flags *pflag.FlagSet) *Factory {
-	// Override global default to "" so we force the client to ask for user input
 	// TODO refactor this upstream:
 	// DefaultCluster should not be a global
 	// A call to ClientConfig() should always return the best clientCfg possible
 	// even if an error was returned, and let the caller decide what to do
-	kclientcmd.DefaultCluster.Server = ""
+	kclientcmd.DefaultCluster.Server = "https://localhost:8443"
 
 	// TODO: there should be two client configs, one for OpenShift, and one for Kubernetes
 	clientConfig := DefaultClientConfig(flags)