SpringCloud 微服务日志经 kafka 缓冲写入到 ELK

$ bin/zookeeper-server-start.sh config/zookeeper.properties

$ bin/kafka-server-start.sh config/server.properties

$ bin/kafka-topics.sh --create --topic logger-channel --bootstrap-server localhost:9092

# Sample Logstash configuration for creating a simple# Beats -> Logstash -> Elasticsearch pipeline.
input {  kafka {    id => "my_plugin_id"    bootstrap_servers => "localhost:9092"    topics => ["logger-channel"]    auto_offset_reset => "latest"  }}
filter {  #json  json {    source => "message"  }  date {    match => ["time", "yyyy-MM-dd HH:mm:ss.SSS"]    remove_field => ["time"]  }}
output {  #stdout {}  elasticsearch {    hosts => ["http://localhost:9200"]    index => "logs-%{+YYYY.MM.dd}"    #user => "elastic"    #password => "changeme"  }}

./bin/logstash -f ./config/kafka.conf --config.reload.automatic

<?xml version="1.0" encoding="UTF-8"?><!-- scan：当此属性设置为true时，配置文件如果发生改变，将会被重新加载，默认值为true。 scanPeriod：设置监测配置文件是否有修改的时间间隔，如果没有给出时间单位， 默认单位是毫秒当scan为true时，此属性生效。默认的时间间隔为1分钟。 debug：当此属性设置为true时，将打印出logback内部日志信息，实时查看logback运行状态。 默认值为false。 --><!-- <configuration scan="false" scanPeriod="60 seconds" debug="false"> --><configuration>
  <!--设置上下文名称,用于区分不同应用程序的记录。一旦设置不能修改, 可以通过%contextName来打印日志上下文名称 -->  <contextName>kafka-log-test</contextName>
  <property name="applicationName" value="${spring.application.name:-paw-kelk}"/>  <!-- 定义日志的根目录 -->  <property name="logDir" value="/Users/rubble/logs/${applicationName}" />  <!-- 定义日志文件名称 -->  <property name="logName" value="${applicationName}"/>  <!--  profile -->  <property name="profileActive" value="${spring.profile.active:-dev}" />
  <!-- ConsoleAppender 表示控制台输出 -->  <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">    <!-- 日志输出格式： %d表示日期时间， %thread表示线程名， %-5level：级别从左显示5个字符宽度, %logger{50}        表示logger名字最长50个字符，否则按照句点分割。 %msg：日志消息， %n是换行符 -->    <encoder>      <pattern>%d{HH:mm:ss.SSS}  %contextName [%thread] %-5level %logger{36}  - %msg%n</pattern>    </encoder>  </appender>
  <!-- 异常错误日志记录到文件  -->  <appender name="logfile" class="ch.qos.logback.core.rolling.RollingFileAppender">    <!-- <Encoding>UTF-8</Encoding> -->    <File>${logDir}/${logName}.log</File>    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">      <FileNamePattern>${logDir}/history/${myspringboottest_log}.%d{yyyy-MM-dd}.rar</FileNamePattern>      <maxHistory>30</maxHistory>    </rollingPolicy>    <encoder>      <pattern>%d{HH:mm:ss.SSS} %contextName [%thread] %-5level %logger{36}  - %msg%n</pattern>    </encoder>  </appender>

  <appender name="kafkaAppender" class="com.github.danielwegener.logback.kafka.KafkaAppender">    <encoder class="com.github.danielwegener.logback.kafka.encoding.LayoutKafkaMessageEncoder">      <layout class="net.logstash.logback.layout.LogstashLayout" >        <includeContext>false</includeContext>        <includeCallerData>true</includeCallerData>        <customFields>{"appName":"${applicationName}","env":"${profileActive}"}</customFields>        <fieldNames class="net.logstash.logback.fieldnames.ShortenedFieldNames"/><!--        <fieldNames class="net.logstash.logback.fieldnames.LogstashFieldNames"/>-->      </layout>      <charset>UTF-8</charset>    </encoder>    <!--kafka topic 需要与配置文件里面的topic一致 否则kafka会沉默并鄙视你-->    <topic>logger-channel</topic>    <keyingStrategy class="com.github.danielwegener.logback.kafka.keying.HostNameKeyingStrategy" />    <deliveryStrategy class="com.github.danielwegener.logback.kafka.delivery.AsynchronousDeliveryStrategy" />    <producerConfig>bootstrap.servers=localhost:9092</producerConfig>    <!-- 如果kafka不可用则输出到 appender -->    <appender-ref ref="logfile" />  </appender>

  <!--异步写入kafka，尽量不占用主程序的资源-->  <appender name="ASYNC" class="ch.qos.logback.classic.AsyncAppender">    <neverBlock>true</neverBlock>    <includeCallerData>true</includeCallerData>    <discardingThreshold>0</discardingThreshold>    <queueSize>2048</queueSize>    <appender-ref ref="kafkaAppender" />  </appender>
  <root level="INFO">    <appender-ref ref="CONSOLE" /><!--    <appender-ref ref="logfile"/>-->        <!-- kafka 日志    -->    <appender-ref ref="ASYNC" />  </root>
</configuration>