Incorporate rkamudhan's comment.

logging/logging.go

@@ -124,7 +124,7 @@ func SetLogFile (filename string) {
 }
 
 func init() {
-	loggingStderr = false
+	loggingStderr = true
 	loggingFp = nil
 	loggingLevel = PanicLevel
 }

types/conf.go

@@ -52,11 +52,11 @@ func LoadNetConf(bytes []byte) (*NetConf, error) {
 	}
 
 	// Logging
-	if netconf.Logging != "" {
-		logging.SetLogFile(netconf.Logging)
+	if netconf.LogFile != "" {
+		logging.SetLogFile(netconf.LogFile)
 	}
-	if netconf.LoggingLevel != "" {
-		logging.SetLogLevel(netconf.LoggingLevel)
+	if netconf.LogLevel != "" {
+		logging.SetLogLevel(netconf.LogLevel)
 	}
 
 	// Parse previous result

types/types.go

@@ -38,8 +38,8 @@ type NetConf struct {
 	RawDelegates []map[string]interface{} `json:"delegates"`
 	Delegates    []*DelegateNetConf       `json:"-"`
 	Kubeconfig   string                   `json:"kubeconfig"`
-	Logging      string                   `json:"logging"`
-	LoggingLevel string                   `json:"logging_level"`
+	LogFile      string                   `json:"logFile"`
+	LogLevel     string                   `json:"logLevel"`
 }
 
 type DelegateNetConf struct {