Elasticsearch+Logstash+Kibana搭建日志平台

1 ELK简介

ELK是Elasticsearch+Logstash+Kibana的简称

  • ElasticSearch是一个基于Lucene的分布式全文搜索引擎,提供 RESTful API进行数据读写

  • Logstash是一个收集,处理和转发事件和日志消息的工具

  • Kibana是Elasticsearch的开源数据可视化插件,为查看存储在ElasticSearch提供了友好的Web界面,并提供了条形图,线条和散点图,饼图和地图等分析工具

总的来说,ElasticSearch负责存储数据,Logstash负责收集日志,并将日志格式化后写入ElasticSearch,Kibana提供可视化访问ElasticSearch数据的功能。

1.1  环境准备

10.0.0.7           elasticsearch 
10.0.0.8           logstash 
10.0.0.9           kibana 
环境准备:
[root@es-node1 ~]# cat /etc/redhat-release 
CentOS Linux release 7.2.1511 (Core)
[root@logstash ~]# cat /etc/redhat-release 
CentOS Linux release 7.2.1511 (Core) 
[root@kibana ~]# cat /etc/redhat-release 
CentOS Linux release 7.2.1511 (Core) 
#官网下载地址
https://www.elastic.co/downloads
  • 每台机器需要优化操作系统否则报错
[root@es-node1 ~]# cat /etc/security/limits.conf|tail -5
* soft nofile 65536
* hard nofile 65536
* soft nproc  65536
* hard nproc  65536
[root@es-node1 ~]# cat /etc/security/limits.d/20-nproc.conf|tail -2
*          soft    nproc     65536
root       soft    nproc     unlimited
[root@es-node1 ~]# cat /etc/sysctl.conf |tail -2
vm.max_map_count=655360
fs.file-max=655360
[root@es-node1 ~]# sysctl -p
vm.max_map_count = 655360
fs.file-max = 655360

1.2  搭建单机6.0版本elasticsearch

[root@es-node1 ~]# ll
total 197448
-rw-r--r-- 1 root root  28017602 Sep 12 23:02 elasticsearch-6.0.0.tar.gz
-rw-r--r-- 1 root root 174163338 Sep 12 23:02 jdk-8u151-linux-x64.rpm
[root@es-node1 ~]# useradd elasticsearch
[root@es-node1 ~]# mv elasticsearch-6.0.0.tar.gz /usr/local/src/
[root@es-node1 ~]# rpm -ivh jdk-8u151-linux-x64.rpm 
Preparing...                          ################################# [100%]
Updating / installing...
   1:jdk1.8-2000:1.8.0_151-fcs        ################################# [100%]
Unpacking JAR files...
	tools.jar...
	plugin.jar...
	javaws.jar...
	deploy.jar...
	rt.jar...
	jsse.jar...
	charsets.jar...
	localedata.jar...
[root@es-node1 ~]# cd /usr/local/src/
[root@es-node1 src]# ll
total 27364
-rw-r--r-- 1 root root 28017602 Sep 12 23:02 elasticsearch-6.0.0.tar.gz
[root@es-node1 src]# tar xf elasticsearch-6.0.0.tar.gz -C ../
[root@es-node1 src]# cd ..
[root@es-node1 local]# mv elasticsearch-6.0.0/ elasticsearch
[root@es-node1 local]# cd elasticsearch/
[root@es-node1 elasticsearch]# chown -R elasticsearch.elasticsearch .
[root@es-node1 elasticsearch]# mkdir -p /data/es/logs /data/es/data
[root@es-node1 elasticsearch]# chown -R elasticsearch.elasticsearch /data/es/logs /data/es/data
[root@es-node1 elasticsearch]# su - elasticsearch
[elasticsearch@es-node1 ~]$ cd /usr/local/elasticsearch/
[elasticsearch@es-node1 elasticsearch]$ cd config/
[elasticsearch@es-node1 config]$ cp elasticsearch.yml{,.bak}
[elasticsearch@es-node1 config]$ cat elasticsearch.yml
cluster.name: es 
node.name: es1
path.data: /data/es/data
path.logs: /data/es/logs
network.host: 10.0.0.7
http.port: 9200
transport.tcp.port: 9300
node.master: true
node.data: true
discovery.zen.ping.unicast.hosts: ["10.0.0.7:9300"]
discovery.zen.minimum_master_nodes: 1
http.cors.enabled: true
http.cors.allow-origin: "*"
#增加端口
[root@es-node1 ~]# firewall-cmd --add-port=9200/tcp --permanent
[root@es-node1 ~]# firewall-cmd --add-port=9300/tcp --permanent
#重新加载防火墙规则
[root@es-node1 ~]# firewall-cmd --reload
#后台启动
[elasticsearch@es-node1 ~]$ /usr/local/elasticsearch/bin/elasticsearch -d
[root@es-node1 ~]# curl http://10.0.0.7:9200/_cluster/health  #显示green为正常
  • green  最健康得状态,说明所有的分片包括备份都可用
  • yellow 基本的分片可用,但是备份不可用(或者是没有备份)
  • red      部分的分片可用,表明分片有一部分损坏。此时执行查询部分数据仍然可以查到,遇到这种情况,还是赶快解决比较好

1.3  安装elasticsearch-head

#安装node步骤略
[elasticsearch@es-node1 ~]$  cd /usr/local/src/
[elasticsearch@es-node1 ~]$  git clone https://github.com/mobz/elasticsearch-head.git
[elasticsearch@es-node1 ~]$  cd /usr/local/src/elasticsearch-head/
[elasticsearch@es-node1 ~]$  npm install 
[elasticsearch@es-node1 ~]$  npm run start &

  

1.4 安装logstash

[root@logstash ~]# ll
total 279772
-rw-r--r-- 1 root root 174163338 Sep 13 03:08 jdk-8u151-linux-x64.rpm
-rw-r--r-- 1 root root 112316625 Sep 13 03:08 logstash-6.0.0.tar.gz
 [root@logstash ~]# rpm -ivh jdk-8u151-linux-x64.rpm 
 [root@logstash ~]# tar xf logstash-6.0.0.tar.gz -C /usr/local/
 [root@logstash ~]# cd /usr/local/
 [root@logstash ~]# mv logstash-6.0.0/ logstash
  • 修改配置文件
[root@logstash config]# mkdir -p /data/logstash/{data,logs}
[root@logstash config]# cat logstash.yml 
path.data: /data/logstash/data
path.logs: /data/logstash/logs
  •  编写收集日志的conf文件
[root@logstash logstash]# mkdir -p /usr/local/logstash/conf.d
[root@logstash logstash]# cd  /usr/local/logstash/conf.d
[root@logstash logstash]# cat conf.d/system-log.conf 
input {
  file {
    path => "/var/log/messages"
    type => "systemlog"
    start_position => "beginning"
    stat_interval => "3"
  }
  file {
    path => "/var/log/secure"
    type => "securelog"
    start_position => "beginning"
    stat_interval => "3"
  }
}
 
output {
  if [type] == "systemlog" {
    elasticsearch {
      hosts => ["10.0.0.7:9200"]
      index => "system-log-%{+YYYY.MM.dd}"
       }
    }
  if [type] == "securelog" {
    elasticsearch {
      hosts => ["10.0.0.7:9200"]
      index => "secury-log-%{+YYYY.MM.dd}"
      }
   }
}   
#检查文件ogstash
[root@logstash logstash]# ./bin/logstash -f ./conf.d/system-log.conf -t
#启动logstash
[root@logstash logstash]# ./bin/logstash -f ./conf.d/system-log.conf 

  此时elasticsearch的状态

1.5 安装kibana

[root@kibana src]# ll /usr/local/src/
total 61216
-rw-r--r-- 1 root root 62681537 Sep 11 10:27 kibana-6.0.0-linux-x86_64.tar.gz
[root@kibana src]# tar xf kibana-6.0.0-linux-x86_64.tar.gz
[root@kibana src]# mv kibana-6.0.0-linux-x86_64 ../kibana
#更改配置文件
[root@kibana config]# cat kibana.yml 
server.port: 5601
server.host: "10.0.0.9"
elasticsearch.url: "http://10.0.0.7:9200"
#启动kibana
[root@kibana kibana]# ./bin/kibana
  • 添加索引

 

  • 这样我们最基本的收集日志就完成了,当然了这只是开始还差很多优化以及dashboard图形等展示

 

 

 

 

 

 

 

 

  

  

 

posted @ 2018-09-12 14:27 阿进,fighting 阅读(...) 评论(...) 编辑 收藏