SpringBoot 配置ELK（EFK）

错误：

logstash 日志重复

原来想的是直接用springboot 的 log 文件 输出给 logstash

后来考虑到 nginx  json 日志   也是按 logstash 的json格式输出log文件 
logstash  input   output  给  Elasticsearch    才能实时显示在kibana

因为这个浪费了两天时间

springboot 配置ELK maven 依赖：

  <dependency>
            <groupId>net.logstash.logback</groupId>
            <artifactId>logstash-logback-encoder</artifactId>
            <version>5.3</version>
  </dependency>

logback-spring.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="org/springframework/boot/logging/logback/base.xml" />

    <appender name="LOGSTASH" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
        <destination>127.0.0.1:4560</destination>
        <!-- 日志输出编码 -->
        <encoder charset="UTF-8"
                class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
            <providers>
                <timestamp>
                    <timeZone>UTC</timeZone>
                </timestamp>
                <pattern>
                    <pattern>
                        {
                        "logLevel": "%level",
                        "serviceName": "${springAppName:-}",
                        "pid": "${PID:-}",
                        "thread": "%thread",
                        "class": "%logger{40}",
                        "rest": "%message"
                        }
                    </pattern>
                </pattern>
            </providers>
        </encoder>
    </appender>

    <root level="INFO">
        <appender-ref ref="LOGSTASH" />
        <appender-ref ref="CONSOLE" />
    </root>

</configuration>

Logstash配置

input {
  tcp {
    mode => "server"
    host => "0.0.0.0"
    port => 4560
    codec => json_lines
  }
}
output {
  elasticsearch {
    hosts => "localhost:9200"
    index => "springboot-logstash-%{+YYYY.MM.dd}"
  }
}