some optimize：

1. not log stacktrace;
2. Remove space when read UUID from file;
3. Config sample file optimize;

bin/node/server.go

@@ -27,6 +27,7 @@ func main() {
 	lcf := zap.NewDevelopmentConfig()
 	lcf.Level.SetLevel(zapcore.Level(*level))
 	lcf.Development = false
+	lcf.DisableStacktrace = true
 	logger, err := lcf.Build(zap.AddCallerSkip(1))
 	if err != nil {
 		slog.Fatalln("new log err:", err.Error())

conf/conf.go

@@ -159,7 +159,8 @@ func (c *Conf) UUID() (string, error) {
 		if len(b) == 0 {
 			return c.genUUID()
 		}
-		return string(b), nil
+		suid := strings.Join(strings.Fields(string(b)), "")
+		return suid, nil
 	}
 
 	if !os.IsNotExist(err) {

conf/files/base.json.sample

@@ -24,6 +24,6 @@
     "Security": "@extend:security.json",
     "#comment": "PIDFile and UUIDFile just work for cronnode",
     "#PIDFile": "Given a none-empty string to write a pid file to the specialed path, or leave it empty to do nothing",
-    "PIDFile": "/tmp/cronsun/cronnode_pid",
+    "PIDFile": "/var/run/cronsun/cronnode.pid",
     "UUIDFile": "/etc/cronsun/CRONSUN_UUID"
 }

conf/files/db.json.sample

@@ -3,6 +3,8 @@
     "127.0.0.1:27017"
   ],
   "Database": "cronsun",
+  "UserName": "",
+  "Password": "",
   "#Timeout": "connect timeout duration/second",
   "Timeout": 15
 }

conf/files/web.json.sample

@@ -1,11 +1,12 @@
 {
     "BindAddr": ":7079",
     "Auth": {
+        "#Enabled": "set to true to open auth. default username and password is admin@admin.com/admin",
 		"Enabled": false
 	},
     "Session": {
         "StorePrefixPath": "/cronsun/sess/",
-        "CookieName": "uid",
+        "CookieName": "cronsun_uid",
         "Expiration": 8640000
     },
     "#comment": "Delete the expired log (which store in mongodb) periodically",