reenable e2e_node services & debugging improvements

- re-enable e2e_node services
 - call GenerateSecureToken for e2e_node Conformance test-suite
 - add log messages indicating location in process
 - move log messages to some more accurate locations

test/e2e/framework/test_context.go

@@ -407,7 +407,10 @@ func createKubeConfig(clientCfg *restclient.Config) *clientcmdapi.Config {
 	return configCmd
 }
 
-func generateSecureToken(tokenLen int) (string, error) {
+// GenerateSecureToken returns a string of length tokenLen, consisting
+// of random bytes encoded as base64 for use as a Bearer Token during
+// communication with an APIServer
+func GenerateSecureToken(tokenLen int) (string, error) {
 	// Number of bytes to be tokenLen when base64 encoded.
 	tokenSize := math.Ceil(float64(tokenLen) * 6 / 8)
 	rawToken := make([]byte, int(tokenSize))
@@ -440,11 +443,12 @@ func AfterReadingAllFlags(t *TestContextType) {
 	}
 	if len(t.BearerToken) == 0 {
 		var err error
-		t.BearerToken, err = generateSecureToken(16)
+		t.BearerToken, err = GenerateSecureToken(16)
 		if err != nil {
 			klog.Fatalf("Failed to generate bearer token: %v", err)
 		}
 	}
+
 	// Allow 1% of nodes to be unready (statistically) - relevant for large clusters.
 	if t.AllowedNotReadyNodes == 0 {
 		t.AllowedNotReadyNodes = t.CloudConfig.NumNodes / 100