feat: [CS-3] output log to console for promtail to collect

Author: lianjin

server/log/logger.go

@@ -18,7 +18,9 @@ var (
 func InitLogger() {
 	writeSyncer := getLogWriter()
 	encoder := getEncoder()
-	core := zapcore.NewCore(encoder, writeSyncer, getLogLevel())
+	fileCore := zapcore.NewCore(encoder, writeSyncer, getLogLevel())
+	consoleCore := zapcore.NewCore(encoder, zapcore.AddSync(os.Stdout), getLogLevel())
+	core := zapcore.NewTee(fileCore, consoleCore)
 	Logger = zap.New(core, zap.AddCaller()).Sugar()
 }