ELK快速搭建日志平台

1.  抛砖引入


Elasticsearch

Logstash》    

Filebeat

Filebeat模块与配置

Kibana

Kibana安全特性之权限控制

 

2.  前言


2.1.  现状

以前,查看日志都是通过SSH客户端登服务器去看,使用较多的命令就是 less 或者 tail。如果服务部署了好几台,就要分别登录到这几台机器上看,还要注意日志打印的时间(比如,有可能一个操作过来产生好的日志,这些日志还不是在同一台机器上,此时就需要根据时间的先后顺序推断用户的操作行为,就要在这些机器上来回切换)。而且,搜索的时候不方便,必须对vi,less这样的命令很熟悉,还容易看花了眼。为了简化日志检索的操作,可以将日志收集并索引,这样方便多了,用过Lucene的人应该知道,这种检索效率是很高的。基本上每个互联网公司都会有自己的日志管理平台和监控平台(比如,Zabbix),无论是自己搭建的,还是用的阿里云这样的云服务提供的,反正肯定有。下面,我们利用ELK搭建一个相对真实的日志管理平台。

2.2.  日志格式

我们的日志,现在是这样的:

每条日志的格式,类似于这样:

2018-08-22 00:34:51.952 [INFO ] [org.springframework.kafka.KafkaListenerEndpointContainer#0-1-C-1] [com.cjs.handler.MessageHandler][39] - 监听到注册事件消息:

2.3.  logback.xml

Logback配置

2.4.  环境介绍

在本例中,各个系统的日志都在/data/logs/${projectName},比如:

Filebeat,Logstash,Elasticsearch,Kibana都在一台虚拟机上,而且都是单实例,而且没有别的中间件

由于,日志每天都会归档,且实时日志都是输出在info.log或者error.log中,所以Filebeat采集的时候只需要监视这两个文件即可。

 

3.  Filebeat配置


Filebeat的主要配置在于filebeat.yml配置文件中的 filebeat.inputs 和 output.logstash 区域:

#=========================== Filebeat inputs =============================
filebeat.inputs:
- type: log
  enabled: true
  # 要抓取的文件路径 
  paths:
    - /data/logs/oh-coupon/info.log
    - /data/logs/oh-coupon/error.log
  # 添加额外的字段
  fields:
    log_source: oh-coupon
  fields_under_root: true
  # 多行处理
  # 不以"yyyy-MM-dd"这种日期开始的行与前一行合并 
  multiline.pattern: ^\d{4}-\d{1,2}-\d{1,2}
  multiline.negate: true
  multiline.match: after

  # 5秒钟扫描一次以检查文件更新
  scan_frequency: 5s
  # 如果文件1小时都没有更新,则关闭文件句柄
  close_inactive: 1h  
  # 忽略24小时前的文件
  #ignore_older: 24h


- type: log
  enabled: true
  paths:
    - /data/logs/oh-promotion/info.log
    - /data/logs/oh-promotion/error.log
  fields:
    log_source: oh-promotion
  fields_under_root: true
  multiline.pattern: ^\d{4}-\d{1,2}-\d{1,2}
  multiline.negate: true
  multiline.match: after
  scan_frequency: 5s
  close_inactive: 1h  
  ignore_older: 24h

#================================ Outputs =====================================

#-------------------------- Elasticsearch output ------------------------------
#output.elasticsearch:
  # Array of hosts to connect to.
  # hosts: ["localhost:9200"]

  # Optional protocol and basic auth credentials.
  #protocol: "https"
  #username: "elastic"
  #password: "changeme"

#----------------------------- Logstash output --------------------------------
output.logstash:
  # The Logstash hosts
  hosts: ["localhost:5044"]

  # Optional SSL. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

 

4.  Logstash配置


4.1.  logstash.yml

# X-Pack Monitoring
# https://www.elastic.co/guide/en/logstash/current/monitoring-logstash.html
xpack.monitoring.enabled: true
xpack.monitoring.elasticsearch.username: "logstash_system"
xpack.monitoring.elasticsearch.password: "123456"
xpack.monitoring.elasticsearch.url: ["http://localhost:9200"]

4.2.  管道配置

input {
    beats {
        port => "5044"
    }
}
filter {
    grok {
        match => { "message" => "%{TIMESTAMP_ISO8601:log_date}\s+\[%{LOGLEVEL:log_level}" }
    }
    date {
        match => ["log_date", "yyyy-MM-dd HH:mm:ss.SSS"]
        target => "@timestamp"
    }
}
output {
    
    if [log_source] == "oh-coupon" {
        elasticsearch {
            hosts => [ "localhost:9200" ]
            index => "oh-coupon-%{+YYYY.MM.dd}"
            user => "logstash_internal"
            password => "123456"
        }
    }

    if [log_source] == "oh-promotion" {
        elasticsearch {
            hosts => [ "localhost:9200" ]
            index => "oh-promotion-%{+YYYY.MM.dd}"
            user => "logstash_internal"
            password => "123456"
        }
    }

}

4.3.  插件

Logstash针对输入、过滤、输出都有好多插件

关于Logstash的插件在之前的文章中未曾提及,因为都是配置,所以不打算再单独写一篇了,这里稍微重点的提一下,下面几篇文章对此特别有帮助:

https://www.elastic.co/guide/en/logstash/current/input-plugins.html

https://www.elastic.co/guide/en/logstash/current/plugins-inputs-beats.html

https://www.elastic.co/guide/en/logstash/current/plugins-inputs-kafka.html

https://www.elastic.co/guide/en/logstash/current/filebeat-modules.html

https://www.elastic.co/guide/en/logstash/current/output-plugins.html

https://www.elastic.co/guide/en/logstash/current/logstash-config-for-filebeat-modules.html

https://www.elastic.co/guide/en/logstash/current/filter-plugins.html

本例中,到了输入插件:beats,过滤插件:grok和date,输出插件:elasticsearch

这里,最最重要的是 grok ,利用这个插件我们可以从消息中提取一些我们想要的字段

grok

https://www.elastic.co/guide/en/logstash/current/plugins-filters-grok.html

https://github.com/logstash-plugins/logstash-patterns-core/blob/master/patterns/grok-patterns

date

https://www.elastic.co/guide/en/logstash/current/plugins-filters-date.html#plugins-filters-date-target

字段引用

https://www.elastic.co/guide/en/logstash/current/event-dependent-configuration.html#logstash-config-field-references

 

5.  Elasticsearch配置


5.1.  elasticsearch.yml

xpack.security.enabled: true

其它均为默认

 

6.  Kibana配置


6.1.  kibana.yml

server.port: 5601

server.host: "192.168.101.5"

elasticsearch.url: "http://localhost:9200"

kibana.index: ".kibana"

elasticsearch.username: "kibana"
elasticsearch.password: "123456"

xpack.security.enabled: true
xpack.security.encryptionKey: "4297f44b13955235245b2497399d7a93"

 

7.  启动服务


7.1.  启动Elasticsearch

[root@localhost ~]# su - cheng
[cheng@localhost ~]$ cd $ES_HOME
[cheng@localhost elasticsearch-6.3.2]$ bin/elasticsearch

7.2.  启动Kibana

[cheng@localhost kibana-6.3.2-linux-x86_64]$ bin/kibana

7.3.  启动Logstash

[root@localhost logstash-6.3.2]# bin/logstash -f second-pipeline.conf --config.test_and_exit
[root@localhost logstash-6.3.2]# bin/logstash -f second-pipeline.conf --config.reload.automatic

7.4.  启动Filebeat

[root@localhost filebeat-6.3.2-linux-x86_64]# rm -f data/registry
[root@localhost filebeat-6.3.2-linux-x86_64]# ./filebeat -e -c filebeat.yml -d "publish"

 

8.  演示


 

9.  参考


https://www.cnblogs.com/liuxinan/p/5336971.html

 

posted @ 2018-08-22 13:38  废物大师兄  阅读(4464)  评论(0编辑  收藏