如何使用Express将Node.js登录到ELK？ [英] How to log from Node.js with Express to ELK?

问题描述

我有一个带有Express的Node.js服务器应用程序。我想将其活动记录到ElasticSearch中，并使用Kibana可视化日志。

这样做的正确方法是什么？

我应该写一个json行的日志文件并用Logstash读取吗？

谢谢

解决方案

我建议 log4js 。它有一系列有用的appender，logstash是其中之一。它可以通过UDP工作。

以下是从log4js站点获取的示例：

  var log4js = require（'../ lib / log4js'）; / * Sample logstash config：udp {codec => json port => 10001 queue_size => 2名工人=> 2 type => myAppType} * / log4js.configure（{appenders：[{type：console，category：myLogger}，{host：127.0.0.1，port：10001，type logstashUDP，logType：myAppType，//可选，默认为categoryfields：{//可选，将添加到logstash中的'fields'对象field1：value1，field2 value2}，layout：{type：pattern，pattern：％m}，category：myLogger}]}）; var logger = log4js.getLogger（ myLogger）; logger.info（测试日志消息％s，arg1，arg2）;  

I have a Node.js server application with Express. I would like to log its activity into ElasticSearch and visualize the logs using Kibana.

What would be the right way to do that?

Should I write a log file of json lines and read it with Logstash?

Thanks

解决方案

I'd recommend log4js. It has a range of useful appenders, and logstash is one of them. It works over UDP.

Here is an example taken from the log4js site:

var log4js = require('../lib/log4js');

/*
 Sample logstash config:
   udp {
    codec => json
    port => 10001
    queue_size => 2
    workers => 2
    type => myAppType
  }
*/

log4js.configure({
  "appenders": [
    {
      type: "console",
      category: "myLogger"
    },
    {
      "host": "127.0.0.1",
      "port": 10001,
      "type": "logstashUDP",
      "logType": "myAppType", // Optional, defaults to 'category'
      "fields": {             // Optional, will be added to the 'fields' object in logstash
        "field1": "value1",
        "field2": "value2"
      },
      "layout": {
        "type": "pattern",
        "pattern": "%m"
      },
      "category": "myLogger"
    }
  ]
});

var logger = log4js.getLogger("myLogger");
logger.info("Test log message %s", "arg1", "arg2");

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