Add structured logFormat for text based logging

logging.go

@@ -34,9 +34,10 @@ func prepareLoggingFile(logFile string) *reopen.FileWriter {
 }
 
 const (
-	jsonLogFormat = "json"
-	textLogFormat = "text"
-	noneLogType   = "none"
+	jsonLogFormat    = "json"
+	textLogFormat    = "text"
+	structuredFormat = "structured"
+	noneLogType      = "none"
 )
 
 type logConfiguration struct {
@@ -69,6 +70,10 @@ func startLogging(config logConfiguration) {
 		accessLogEntry = accessLogger.WithField("system", "http")
 
 		log.SetFormatter(&log.TextFormatter{})
+	case structuredFormat:
+		formatter := &log.TextFormatter{ForceColors: true, EnvironmentOverrideColors: true}
+		log.SetFormatter(formatter)
+		accessLogEntry = log.WithField("system", "http")
 	default:
 		log.WithField("logFormat", config.logFormat).Fatal("Unknown logFormat configured")
 	}

main.go

@@ -59,7 +59,7 @@ var logConfig = logConfiguration{}
 
 func init() {
 	flag.StringVar(&logConfig.logFile, "logFile", "", "Log file location")
-	flag.StringVar(&logConfig.logFormat, "logFormat", "text", "Log format to use defaults to text (text, json, none)")
+	flag.StringVar(&logConfig.logFormat, "logFormat", "text", "Log format to use defaults to text (text, json, structured, none)")
 }
 
 func main() {