Spring Boot集成syslog快速入门Demo

1.什么syslog？

Syslog-ng是由Balabit IT Security Ltd.维护的一套开源的Unix和类Unix系统的日志服务套件。它是一个灵活的、可伸缩的系统日志记录程序。对于服务器日志集中收集，使用它是一个不错的解决方案。syslog-ng (syslog-Next generation) 是syslog的升级版

Syslog-ng主要特性有：

支持SSL/TSL协议
支持将日志写入数据库中,支持的数据库有MySQL, Microsoft SQL (MSSQL),Oracle, PostgreSQL, and SQLite.
支持标准的syslog协议
支持filter、parse以及rewrite
支持更多的平台
更高的负载能力

2.环境准备

docker-compose.yml

version: '3.6'

services:
  syslog:
    image: lscr.io/linuxserver/syslog-ng:latest
    container_name: syslog-ng

    ports:
      - 514:5514/udp
      - 601:6601/tcp
      - 6514:6514/tcp
    volumes:
      - ./data/config:/config
      - ./data/log:/var/log #optional
    restart: unless-stopped

run

docker-compose -f docker-compose.yml up -d

down

docker-compose -f docker-compose.yml down

3.代码工程

实验目的

实现将springboot应用日志发送到syslog-ng

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>springboot-demo</artifactId>
        <groupId>com.et</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>syslog</artifactId>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
        </dependency>
    </dependencies>
</project>

controller

package com.et.syslog.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.HashMap;
import java.util.Map;

@RestController
public class HelloWorldController {
    private final Logger logger = LoggerFactory.getLogger(HelloWorldController.class);

    @RequestMapping("/hello")
    public Map<String, Object> showHelloWorld(@RequestParam("n") String name){
        logger.info("Say hello to {}", name);
        Map<String, Object> map = new HashMap<>();
        map.put("msg", "HelloWorld");
        return map;
    }
}

log4j2-spring.xml

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
    <Appenders>
        <Console name="ConsoleAppender" target="SYSTEM_OUT">
            <PatternLayout
                    pattern="%style{%date{DEFAULT}}{yellow} %highlight{%-5level}{FATAL=bg_red, ERROR=red, WARN=yellow, INFO=green} %message%n"/>
        </Console>
        <Syslog name="Syslog" format="RFC5424" host="localhost" port="514"
                protocol="UDP" appName="liuhaihua.cn" facility="LOCAL0" />
    </Appenders>

    <Loggers>
        <Root level="info">
            <AppenderRef ref="ConsoleAppender"/>
            <AppenderRef ref="Syslog"/>

        </Root>
    </Loggers>
</Configuration>

以上只是一些关键代码，所有代码请参见下面代码仓库

代码仓库

https://github.com/Harries/springboot-demo

4.测试

启动spring boot应用
访问http://127.0.0.1:8088/hello?n=niki
查看syslog-ng日志（/var/log/messages,/var/log/messages-kv.log）

5.引用

Syslog Support :: Spring Integration
Spring Boot集成syslog快速入门Demo | Harries Blog™

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