本文介绍SpringBoot如何使用Graylog日志收集。
1.Graylog介绍
Graylog是一个生产级别的日志收集系统,集成Mongo和Elasticsearch进行日志收集。其中Mongo用于存储Graylog的元数据信息和配置信息,ElasticSearch用于存储数据。
架构图如下:
image生产环境配置图如下:
image2.安装Graylog
在官方文档上推荐了很多种安装的方式,这里以docker-compose的方式为例,进行安装Graylog,mongo,elasticsearch。
docker-compose.yml内容如下(这里是在官网的基础上改了一下):
version: '2'
services:
# MongoDB: https://hub.docker.com/_/mongo/
mongodb:
image: mongo:3
# Elasticsearch: https://www.elastic.co/guide/en/elasticsearch/reference/6.6/docker.html
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch-oss:6.6.1
environment:
- http.host=0.0.0.0
- transport.host=localhost
- network.host=0.0.0.0
- "ES_JAVA_OPTS=-Xms256m -Xmx256m"
ulimits:
memlock:
soft: -1
hard: -1
mem_limit: 512m
# Graylog: https://hub.docker.com/r/graylog/graylog/
graylog:
image: graylog/graylog:3.0
environment:
# CHANGE ME (must be at least 16 characters)!
- GRAYLOG_PASSWORD_SECRET=somepasswordpepper
# Password: admin
- GRAYLOG_ROOT_PASSWORD_SHA2=8c6976e5b5410415bde908bd4dee15dfb167a9c873fc4bb8a81f6f2ab448a918
- GRAYLOG_HTTP_EXTERNAL_URI=http://106.13.35.42:9000/
links:
- mongodb:mongo
- elasticsearch
depends_on:
- mongodb
- elasticsearch
ports:
# Graylog web interface and REST API
- 9000:9000
# Syslog TCP
- 1514:1514
# Syslog UDP
- 1514:1514/udp
# GELF TCP
- 12201:12201
# GELF UDP
- 12201:12201/udp
其中106.13.35.42是我的外网ip,本地服务使用127.0.0.1即可。
其他方式可以查看官方文档,https://docs.graylog.org/en/3.0/pages/installation.html
3.配置Graylog
在浏览器访问http://ip:9000,如图:
image这里默认用户名密码都是admin,进入后如图所示。
image选择System按钮中的input,录入一个输入源,如图
image这里以GELF UDP为例,在图中位置选择GELF UDP,选择完成后点击Launch new input,如图
image在Node处选择自己安装的,剩下的就根据需要填写即可,如图
image保存完成后如图,到这里就已经配置完成了。
image4.SpringBoot日志输出到Graylog
这里分别举例Logback日志和Log4j2日志。
4.1 Logback日志
这里使用的logback-gelf向Graylog输出日志,在github上有对logback-gelf的详细使用介绍,这里只是简单举例。Github地址:https://github.com/osiegmar/logback-gelf。
新建项目,加入logback-gelf依赖,pom文件如下:
<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.dalaoyang</groupId>
<artifactId>springboot2_graylog</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springboot2_graylog</name>
<description>springboot2_graylog</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>de.siegmar</groupId>
<artifactId>logback-gelf</artifactId>
<version>2.0.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
加入logback日志配置,新建logback-spring.xml,内容如下:
<configuration>
<conversionRule conversionWord="clr" converterClass="org.springframework.boot.logging.logback.ColorConverter" />
<conversionRule conversionWord="wex" converterClass="org.springframework.boot.logging.logback.WhitespaceThrowableProxyConverter" />
<conversionRule conversionWord="wEx" converterClass="org.springframework.boot.logging.logback.ExtendedWhitespaceThrowableProxyConverter" />
<property name="CONSOLE_LOG_PATTERN" value="${CONSOLE_LOG_PATTERN:-%clr(%d{yyyy-MM-dd HH:mm:ss.SSS}){faint} %clr(${LOG_LEVEL_PATTERN:-%5p}) %clr(${PID:- }){magenta} %clr(---){faint} %clr([%15.15t]){faint} %clr(%-40.40logger{39}){cyan} %clr(:){faint} %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}}"/>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>${CONSOLE_LOG_PATTERN}</pattern>
<charset>UTF-8</charset>
</encoder>
</appender>
<appender name="GELF" class="de.siegmar.logbackgelf.GelfUdpAppender">
<graylogHost>106.13.35.42</graylogHost>
<graylogPort>12201</graylogPort>
</appender>
<!-- 控制台输出日志级别 -->
<root level="info">
<appender-ref ref="GELF" />
<appender-ref ref="STDOUT" />
</root>
</configuration>
启动项目,当前项目端口是8081,查看Graylog控制台如图:
image4.2 Log4j2日志
log4j2日志使用的是log4j2-gelf依赖,github上面也有对应的介绍,pom文件如下:
<?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">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.dalaoyang</groupId>
<artifactId>springboot2_graylog_log4j</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springboot2_graylog_log4j</name>
<description>springboot2_graylog_log4j</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</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</artifactId>
<exclusions>
<exclusion>
<artifactId>spring-boot-starter-logging</artifactId>
<groupId>org.springframework.boot</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>org.graylog2.log4j2</groupId>
<artifactId>log4j2-gelf</artifactId>
<version>1.3.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
创建log4j2-spring.xml进行配置输出日志信息,如下:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="OFF" packages="org.graylog2.log4j2">
<Properties>
<Property name="LOG_PATTERN">%d{yyyy-MM-dd HH:mm:ss:SSS} - %-5level - %pid - %t - %c{1.}:%L - %m%n</Property>
</Properties>
<Appenders>
<Console name="Console" target="SYSTEM_OUT" follow="true">
<ThresholdFilter level="trace" onMatch="ACCEPT" onMismatch="DENY" />
<PatternLayout pattern="${LOG_PATTERN}"/>
</Console>
<GELF name="gelfAppender" server="106.13.35.42" port="12201" hostName="appserver01.example.com">
<PatternLayout pattern="%logger{36} - %msg%n"/>
<Filters>
<Filter type="MarkerFilter" marker="FLOW" onMatch="DENY" onMismatch="NEUTRAL"/>
<Filter type="MarkerFilter" marker="EXCEPTION" onMatch="DENY" onMismatch="ACCEPT"/>
</Filters>
<!-- Additional fields -->
<KeyValuePair key="foo" value="bar"/>
<KeyValuePair key="jvm" value="${java:vm}"/>
</GELF>
</Appenders>
<Loggers>
<Root level="info">
<AppenderRef ref="gelfAppender"/>
<AppenderRef ref="Console"/>
</Root>
</Loggers>
</Configuration>
这个项目使用的端口号是8888,可以在日志中清晰的看到。
image5. ELK vs Graylog
这里仅以日志收集为例,简单说一下二者之间的选择,我个人的建议就是取决于现有技术栈,比如现在就有现成的Mongodb,那么选择Graylog可以节省不少成本,ELK类似,不要盲目的追求技术而选择。
6. 源码
springboot2_graylog源码地址:https://gitee.com/dalaoyang/springboot_learn/tree/master/springboot2_graylog
springboot2_graylog_log4j源码地址:https://gitee.com/dalaoyang/springboot_learn/tree/master/springboot2_graylog_log4j
网友评论