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將 Spring boot 日誌寫入 ELK 有多種實現方式，這裡僅提供三種方案：
Spring boot -> logback -> Tcp/IP -> logstash -> elasticsearch
這種方式實現非常方便不需要而外包或者軟件Spring boot -> logback -> Redis -> logstash -> elasticsearch
利用 Redis 提供的發佈訂閲功能將日誌投遞到 elasticsearchSpring boot -> logback -> Kafka -> logstash -> elasticsearch
Kafka 方法適合大數據的情況。logstash 配置
input {
tcp {
host => "172.16.1.16"
port => 9250
mode => "server"
tags => ["tags"]
codec => json_lines //可能需要更新logstash插件
}
}
output {
stdout{codec =>rubydebug}
elasticsearch {
hosts => ["localhost:9200"] //這塊配置需要帶連接埠號
flush_size => 1000
}
}
Spring boot logback.xml 配置
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<property resource="properties/logback-variables.properties" />
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder charset="UTF-8">
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n
</pattern>
</encoder>
</appender>
<appender name="LOGSTASH" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
<destination>172.16.1.16:9250</destination>
<encoder charset="UTF-8" class="net.logstash.logback.encoder.LogstashEncoder" />
</appender>
<!--<appender name="async" class="ch.qos.logback.classic.AsyncAppender">-->
<!--<appender-ref ref="stash" />-->
<!--</appender>-->
<root level="info"> <!-- 設置日誌級別 -->
<appender-ref ref="STDOUT" />
<appender-ref ref="LOGSTASH" />
</root>
</configuration>
https://github.com/kmtong/logback-redis-appender
Maven pom.xml 增加 Logback Redis 依賴
<!-- https://mvnrepository.com/artifact/com.cwbase/logback-redis-appender -->
<dependency>
<groupId>com.cwbase</groupId>
<artifactId>logback-redis-appender</artifactId>
<version>1.1.5</version>
</dependency>
Spring boot logback.xml 配置
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/defaults.xml" />
<include resource="org/springframework/boot/logging/logback/file-appender.xml" />
<property name="type.name" value="test" />
<appender name="LOGSTASH" class="com.cwbase.logback.RedisAppender">
<source>spring-application</source>
<type>${type.name}</type>
<host>localhost</host>
<key>logstash:redis</key>
<tags>test-2</tags>
<mdc>true</mdc>
<location>true</location>
<callerStackIndex>0</callerStackIndex>
<!--additionalField添加附加欄位 用於head插件顯示 -->
<additionalField>
<key>MyKey</key>
<value>MyValue</value>
</additionalField>
<additionalField>
<key>MySecondKey</key>
<value>MyOtherValue</value>
</additionalField>
</appender>
<root level="INFO">
<appender-ref ref="FILE" />
<appender-ref ref="LOGSTASH" />
</root>
</configuration>
logstash 配置
input {
redis {
host => 'localhost'
data_type => 'list'
port => "6379"
key => 'logstash:redis' #自定義
type => 'redis-input' #自定義
}
}
output {
elasticsearch {
host => "localhost"
codec => "json"
protocol => "http"
}
}