SpringBoot使用Graylog日志收集

  • 2019 年 12 月 9 日
  • 筆記

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:

生产环境配置图如下:

2.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:

这里默认用户名密码都是admin,进入后如图所示。

选择System按钮中的input,录入一个输入源,如图

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

在Node处选择自己安装的,剩下的就根据需要填写即可,如图

保存完成后如图,到这里就已经配置完成了。

4.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:

4.2 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。

5. 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

springboot2grayloglog4j源码地址:https://gitee.com/dalaoyang/springboot_learn/tree/master/springboot2_graylog_log4j