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ELK的文檔搭建

一、安裝elasticsearch

官網：https://www.elastic.co/guide/index.html

https://www.elastic.co/guide/en/elasticsearch/reference/2.3/index.html

參考搭建文檔

Elasticsearch-6.0.0
logstash-6.0.0
kibana-6.0.0
filebeat-6.0.0
https://blog.51cto.com/zero01/2079879   上篇
https://blog.51cto.com/zero01/2082794    下篇
參考  https://www.cnblogs.com/superlinux/p/10591428.html
filebeat寫入kafka  :https://www.jianshu.com/p/da8113f58115

1）環境準備

[root@k8s6 ~]# java -version
openjdk version "1.8.0_201"
OpenJDK Runtime Environment (build 1.8.0_201-b09)
OpenJDK 64-Bit Server VM (build 25.201-b09, mixed mode)

1) 
[root@k8s6 ~]# ls elktools/
elasticsearch-2.3.5.rpm  kibana-4.5.4-1.x86_64.rpm  logstash-2.3.4-1.noarch.rpm

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2）rpm包安裝

[root@k8s6 ~]# rpm -ivh elktools/elasticsearch-2.3.5.rpm

3）修改配置檔案

備份配置檔案
cp /etc/elasticsearch/elasticsearch.yml /etc/elasticsearch/elasticsearch.yml.bak
修改配置檔案
[root@k8s6 elasticsearch]# diff /etc/elasticsearch/elasticsearch.yml /etc/elasticsearch/elasticsearch.yml.bak
17c17
< cluster.name: myes
---
> # cluster.name: my-application
23c23
< node.name: master_node
---
> # node.name: node-1
54c54
< network.host: 192.168.10.22
---
> # network.host: 192.168.0.1
58c58
< http.port: 9200
---
> # http.port: 9200

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補充：

bootstrap.mlockall: false
bootstrap.system_call_filter: false

4）啟動服務

[root@k8s6 elasticsearch]# systemctl start elasticsearch    啟動服務
[root@k8s6 elasticsearch]# netstat -lntup|grep java
tcp6       0      0 192.168.10.22:9200      :::*                    LISTEN      25874/java          
tcp6       0      0 192.168.10.22:9300      :::*                    LISTEN      25874/java

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5）對elasticsearch的api驗證

[root@k8s6 elasticsearch]# curl http://192.168.10.22:9200
{
  "name" : "master_node",
  "cluster_name" : "myes",
  "version" : {
    "number" : "2.3.5",
    "build_hash" : "90f439ff60a3c0f497f91663701e64ccd01edbb4",
    "build_timestamp" : "2016-07-27T10:36:52Z",
    "build_snapshot" : false,
    "lucene_version" : "5.5.0"
  },
  "tagline" : "You Know, for Search"
}

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二、安裝elasticsearch的插件安裝

1）檢視執行的指令和插件位置

[root@k8s6 ~]# ls /usr/share/elasticsearch/
bin  lib  LICENSE.txt  modules  NOTICE.txt  plugins  README.textile

2）安裝head插件

[root@k8s6 ~]# /usr/share/elasticsearch/bin/plugin install mobz/elasticsearch-head        從github下載下傳
[root@k8s6 ~]# ls /usr/share/elasticsearch/plugins/head/
Dockerfile                          Gruntfile.js       LICENCE                       proxy           src
Dockerfile-alpine                   grunt_fileSets.js  package.json                  README.textile  test
elasticsearch-head.sublime-project  index.html         plugin-descriptor.properties  _site

2.1）通路測試

http://192.168.10.22:9200/_plugin/head/

3.1）安裝 kopf 插件

[root@k8s6 ~]# /usr/share/elasticsearch/bin/plugin install lmenezes/elasticsearch-kopf

3.2）通路測試

http://192.168.10.22:9200/_plugin/kopf/

 4）模拟送出post請求

重新整理連接配接

 二、es的叢集測試

1）另一台機器同樣安裝好es,修改配置檔案（主播模式）測試vm會存在問題

[root@node01 elasticsearch]# grep '^[a-Z]' elasticsearch.yml
cluster.name: myes
node.name: node01
path.data: /data/es-data
path.logs: /var/log/elasticsearch
bootstrap.mlockall: false
bootstrap.system_call_filter: false
network.host: 192.168.10.23
http.port: 9200

建立目錄，并授權

[root@node01 elasticsearch]# mkdir -p /data/es-data
[root@node01 elasticsearch]# chown elasticsearch:elasticsearch /data/es-data/

2）單點傳播模式 

[root@node01 elasticsearch]# grep '^[a-Z]' elasticsearch.yml
cluster.name: myes
node.name: node01
path.data: /data/es-data
path.logs: /var/log/elasticsearch
bootstrap.mlockall: true
network.host: 192.168.10.23
http.port: 9200
discovery.zen.ping.unicast.hosts: ["192.168.10.22", "192.168.10.23"]

3）啟動服務

強調，一點要關閉防火牆。否則無法弄成叢集

[root@node01 elasticsearch]# /etc/init.d/elasticsearch start

 4）查詢叢集的狀态

[root@node01 ~]# curl -XGET 'http://192.168.10.22:9200/_cluster/health?pretty=true'
{
  "cluster_name" : "myes",
  "status" : "green",
  "timed_out" : false,
  "number_of_nodes" : 2,    # 2個節點
  "number_of_data_nodes" : 2,
  "active_primary_shards" : 5,
  "active_shards" : 10,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 0,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 100.0
}

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 三、在主節點安裝 logstash

1）安裝logstash

[root@k8s6 elktools]# rpm -ivh logstash-2.3.4-1.noarch.rpm 
準備中...                          ################################# [100%]
正在更新/安裝...
   1:logstash-1:2.3.4-1               ################################# [100%]
[root@k8s6 elktools]# rpm -qa|grep logstash
logstash-2.3.4-1.noarch
[root@k8s6 elktools]# rpm -ql logstash    # 檢視安裝生成了哪些檔案

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 2）模拟日志标準輸出：/opt/logstash/bin/logstash -e 'input { stdin{} } output { stdout{} }'

[root@k8s6 elktools]# /opt/logstash/bin/logstash -e 'input { stdin{} } output { stdout{} }'
Settings: Default pipeline workers: 4
Pipeline main started
hello
2019-03-15T04:42:43.106Z k8s6 hello
hello world
2019-03-15T04:42:51.121Z k8s6 hello world

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json格式輸出： /opt/logstash/bin/logstash -e 'input { stdin{} } output { stdout{ codec => rubydebug } }'

[root@k8s6 elktools]# /opt/logstash/bin/logstash -e 'input { stdin{} } output { stdout{ codec => rubydebug } }'
Settings: Default pipeline workers: 4
Pipeline main started
hello world
{
       "message" => "hello world",
      "@version" => "1",
    "@timestamp" => "2019-03-15T04:47:12.509Z",
          "host" => "k8s6"
}

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3）指令行模拟輸出到elasticsearch： /opt/logstash/bin/logstash -e 'input { stdin{} } output { elasticsearch{ hosts => ["192.168.10.22:9200"] index => "logstash-%{+YYYY.MM.dd}" } }'

[root@k8s6 elktools]# /opt/logstash/bin/logstash -e 'input { stdin{} } output { elasticsearch{ hosts => ["192.168.10.22:9200"] index => "logstash-%{+YYYY.MM.dd}" } }'
Settings: Default pipeline workers: 4
Pipeline main started
hhhee

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 查詢到輸出的值

4）同時進行螢幕輸出并寫入es

[root@k8s6 elktools]# /opt/logstash/bin/logstash -e 'input { stdin{} } output { stdout{ codec => rubydebug }  elasticsearch{ hosts => ["192.168.10.22:9200"] index => "logstash-%{+YYYY.MM.dd}" } }'
Settings: Default pipeline workers: 4
Pipeline main started
天天向上
{
       "message" => "天天向上",
      "@version" => "1",
    "@timestamp" => "2019-03-15T05:02:55.388Z",
          "host" => "k8s6"
}

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 四、使用配置檔案啟動logstash

檢測文法

[root@node01 ~]# /opt/logstash/bin/logstash -t -f /etc/logstash/conf.d/nginx.conf

Configuration OK

1）進入到配置檔案目錄。cd /etc/logstash/conf.d/   ，該目錄由/etc/init.d/logstash 這裡定義的

[root@k8s6 elktools]# cd /etc/logstash/conf.d/
[root@k8s6 conf.d]# ls
[root@k8s6 conf.d]#

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編輯 demo.conf檔案，既輸出在螢幕，也存入es

YYYY.MM.dd  每天

[root@k8s6 conf.d]# cat demo.conf
input {
    stdin{}
}

filter{
}

output{
    elasticsearch {
        hosts => ["192.168.10.22:9200"]
        index => "logstash-%{+YYYY.MM.dd}"
    }
    
    stdout{ codec => rubydebug }
}

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啟動服務：[root@k8s6 conf.d]# /opt/logstash/bin/logstash -f /etc/logstash/conf.d/demo.conf   

 2)使用file插件，指定要記錄日志的目錄

[root@k8s6 conf.d]# cat file.conf 
input {
    file{
        path => ["/var/log/messages", "/var/log/secure"]
        type => "system-log"
        start_position => "beginning"
    }
}

filter{
}

output{
    elasticsearch {
        hosts => ["192.168.10.22:9200"]
        index => "system-log-%{+YYYY.MM}"
    }    
}

file.conf

啟動服務： /opt/logstash/bin/logstash -f /etc/logstash/conf.d/file.conf

 五、安裝kibana

1）在主節點安裝kibana

[root@k8s6 elktools]# rpm -ivh kibana-4.5.4-1.x86_64.rpm

檢視安裝到了哪些位置

[root@k8s6 elktools]# rpm -ql kibana

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 2）修改配置檔案

[root@k8s6 config]# pwd
/opt/kibana/config
[root@k8s6 config]# grep '^[a-Z]' kibana.yml 
server.port: 5601
server.host: "0.0.0.0"
elasticsearch.url: "http://192.168.10.22:9200"
kibana.index: ".kibana"

/opt/kibana/config/kibana.yml

啟動服務：[root@k8s6 config]# /etc/init.d/kibana start

[root@k8s6 config]# netstat -lntup|grep 5601
tcp        0      0 0.0.0.0:5601            0.0.0.0:*               LISTEN      31271/node

網頁通路：192.168.10.22:5601

 2）配置索引，配置哪個，顯示哪個的日志檔案

比對到了建立，即可

補充知識

import requests
from requests.auth import HTTPBasicAuth
res = requests.get('https://elk0001.eniot.io:9200/_cluster/health/?pretty',verify=False, auth=HTTPBasicAuth('user', 'password'))
print(res.text)

# curl --insecure --user user:password -XGET "https://elk-log0001.eniot.io:9200/_cluster/health/?pretty"
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