准备

创建工作目录

1 2	mkdir -p /home/docker/elk_1 cd /home/docker/elk_1/

创建docker-compose

1	vim docker-compose.yml

将以下内容写入到docker-compose.yml

version: '3.7'
services:
  elasticsearch:
    image: elasticsearch:7.6.2
    container_name: elasticsearch
    privileged: true
    user: root
    environment:
      #设置集群名称为elasticsearch
      - cluster.name=elasticsearch 
      #以单一节点模式启动
      - discovery.type=single-node 
      #设置使用jvm内存大小
      - ES_JAVA_OPTS=-Xms512m -Xmx512m 
    volumes:
      - ./elasticsearch/plugins:/usr/share/elasticsearch/plugins
      - ./elasticsearch/data:/usr/share/elasticsearch/data
    ports:
      - 9200:9200
      - 9300:9300

  logstash:
    image: logstash:7.6.2
    container_name: logstash
    ports:
       - 4560:4560
    privileged: true
    environment:
      - TZ=Asia/Shanghai
    volumes:
      #挂载logstash的配置文件
      - ./logstash/logstash.conf:/usr/share/logstash/pipeline/logstash.conf 
    depends_on:
      - elasticsearch 
    links:
      #可以用es这个域名访问elasticsearch服务
      - elasticsearch:es 
    

  kibana:
    image: kibana:7.6.2
    container_name: kibana
    ports:
        - 5601:5601
    privileged: true
    links:
      #可以用es这个域名访问elasticsearch服务
      - elasticsearch:es 
    depends_on:
      - elasticsearch 
    environment:
      #设置访问elasticsearch的地址
      - elasticsearch.hosts=http://es:9200

赋予权限

1	chmod 777 -R /home/docker/elk_1/

运行容器

1	dockere-compose up -d

访问测试

Kibana

访问Kibana：http://192.168.0.150:5601

ElasticSearch

访问ES：http://192.168.2.21:9200/

出现这两个界面就表示部署成功了

收集日志

前言

我们新建一个Spring Boot项目，再使用Spring Boot自带的loback日志系统提交到ELK。

新建Spring Boot项目

添加依赖

<dependency>    
	<groupId>org.springframework.boot</groupId>    					<artifactId>spring-boot-starter-web</artifactId>
</dependency>

<!--集成logstash-->
<dependency>    
	<groupId>net.logstash.logback</groupId>    
	<artifactId>logstash-logback-encoder</artifactId>    			<version>6.6</version>
</dependency>

新建测试方法

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
public class AppTest {

    //创建日志对象
    Logger logger = LogManager.getLogger(this.getClass());

    @Test
    public void logback() {
        logger.info("logback的日志信息过来了");
        logger.error("logback的错误信息过来了");
    }
}

配置

192.168.2.21改为自己logstash容器的端口

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration>
<configuration>
    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
    <include resource="org/springframework/boot/logging/logback/console-appender.xml"/>
    <!--应用名称-->
    <property name="APP_NAME" value="springboot-logback-elk-demo"/>
    <!--日志文件保存路径-->
    <property name="LOG_FILE_PATH" value="${LOG_FILE:-${LOG_PATH:-${LOG_TEMP:-${java.io.tmpdir:-/tmp}}}/logs}"/>
    <contextName>${APP_NAME}</contextName>
    <!--每天记录日志到文件appender-->
    <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${LOG_FILE_PATH}/${APP_NAME}-%d{yyyy-MM-dd}.log</fileNamePattern>
            <maxHistory>30</maxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>${FILE_LOG_PATTERN}</pattern>
        </encoder>
    </appender>
    <!--输出到logstash的appender-->
    <appender name="LOGSTASH" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
        <!--可以访问的logstash日志收集端口-->
        <destination>192.168.2.21:4560</destination>
        <encoder charset="UTF-8" class="net.logstash.logback.encoder.LogstashEncoder"/>
    </appender>
    <root level="INFO">
        <appender-ref ref="CONSOLE"/>
        <appender-ref ref="FILE"/>
        <appender-ref ref="LOGSTASH"/>
    </root>
</configuration>