ELK搭建

ELK搭建

一、elasticsearch

环境安装：
node1 和node2都装上
rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch

#安装yum源

cat  >> /etc/yum.repos.d/elaticsearch.repo  <<EOF
[elasticsearch-2.x]
name=Elasticsearch repository for 2.x packages
baseurl=http://packages.elastic.co/elasticsearch/2.x/centos
gpgcheck=1
gpgkey=http://packages.elastic.co/GPG-KEY-elasticsearch
enabled=1
EOF

#安装

yum -y install elasticsearch redis nginx java

#生成缓存

yum makecache

#测试java

[root@elk_node1 ~]# java -version
openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-b04)
OpenJDK 64-Bit Server VM (build 25.212-b04, mixed mode)

[root@elk_node2 ~]# java -version
openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-b04)
OpenJDK 64-Bit Server VM (build 25.212-b04, mixed mode)

配置文件设置
修改/etc/elasticsearch/elasticsearch.yml配置文件
node1配置文件

[root@elk_node1 ~]# grep '^[a-Z]' /etc/elasticsearch/elasticsearch.yml
cluster.name: huanqiu               ##集群名字
node.name: elk_node1                ##节点名字
path.data: /data/es-data                ##储存数据路径
path.logs: /var/log/elasticsearch/      ##日志路径
bootstrap.memory_lock: true         ##锁定内存，不被使用到交换分区去（通常内存不足时，休眠程序内存信息会交换到交换分区）
network.host: 0.0.0.0               ##所有网络  
http.port: 9200                 ##端口

node2配置文件

[root@elk_node2 ~]# grep '^[a-z]' /etc/elasticsearch/elasticsearch.yml
cluster.name: huanqiu
node.name: elk_node2
path.data: /data/es-data
path.logs: /var/log/elasticsearch/
bootstrap.memory_lock: true
network.host: 0.0.0.0
http.port: 9200
discovery.zen.ping.multicast.enabled: false
discovery.zen.ping.unicast.hosts: ["172.16.10.76", "172.16.10.63"]

mkdir -p /data/es-data                              #创建数据存放路径
chown -R elasticsearch.elasticsearch /data/es-data      #授权
systemctl start elasticsearch                           #开启服务
systemctl enable elasticsearch                      #设置开机自启动
ss -lntup|grep 9200                                 #查看端口
tcp    LISTEN     0      50       :::9200                 :::*                   users:(("java",pid=3216,fd=93))
ss -lntup|grep 9300
tcp    LISTEN     0      50       :::9300                 :::*                   users:(("java",pid=3216,fd=81))

测试

[root@elk_node1 ~]# curl -I 172.16.10.76:9200
HTTP/1.1 200 OK
Content-Type: text/plain; charset=UTF-8
Content-Length: 0
[root@elk_node2 ~]# curl -I 172.16.10.63:9200
HTTP/1.1 200 OK
Content-Type: text/plain; charset=UTF-8
Content-Length: 0

web测试：

安装插件

安装head插件

[root@elk_node1 ~]# /usr/share/elasticsearch/bin/plugin install mobz/elasticsearch-head
-> Installing mobz/elasticsearch-head...
Trying https://github.com/mobz/elasticsearch-head/archive/master.zip ...
Downloading ..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................DONE
Verifying https://github.com/mobz/elasticsearch-head/archive/master.zip checksums if available ...
NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)
Installed head into /usr/share/elasticsearch/plugins/head

##授权

[root@elk_node1 ~]# chown -R elasticsearch.elasticsearch /usr/share/elasticsearch/plugins/

安装kopf插件

[root@elk_node1 ~]#/usr/share/elasticsearch/bin/plugin Installing lmenezes/elasticsearch-kopf
-> Installing lmenezes/elasticsearch-kopf...
Trying https://github.com/lmenezes/elasticsearch-kopf/archive/master.zip ...
Downloading .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................DONE
Verifying https://github.com/lmenezes/elasticsearch-kopf/archive/master.zip checksums if available ...
NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)
Installed kopf into /usr/share/elasticsearch/plugins/kopf
[root@elk_node1 ~]# systemctl restart elasticsearch
[root@elk_node1 ~]# ll /usr/share/elasticsearch/plugins/
总用量 4
drwxr-xr-x 6 elasticsearch elasticsearch 4096 6月   9 12:47 head
drwxr-xr-x 8 root          root           230 6月   9 13:04 kopf

测试验证head插件

测试kopf插件

二、logstash

环境安装：

[root@elk_node1 ~]# vim /etc/yum.repos.d/logstash.repo
[logstash-2.1]
name=Logstash repository for 2.1.x packages
baseurl=http://packages.elastic.co/logstash/2.1/centos
gpgchech=1
gpgkey=http://packages.elastic.co/GPG-KEY-elasticsearch
enabled=1

yum -y install logstash

命令行输入：
标准输入，标准输出

/opt/logstash/bin/logstash -e 'input{ stdin{} } output{ stdout{} }'

OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N
aaa
bbb
ccc
Settings: Default filter workers: 1
Logstash startup completed
2019-06-09T08:42:01.876Z elk_node2 aaa
2019-06-09T08:42:01.877Z elk_node2 bbb
2019-06-09T08:42:01.878Z elk_node2 ccc

标准输入，输出rubydebug格式

/opt/logstash/bin/logstash -e 'input{ stdin{} } output{ stdout{ codec => rubydebug } }'

aaa
Settings: Default filter workers: 1
Logstash startup completed
{
       "message" => "aaa",
      "@version" => "1",
    "@timestamp" => "2019-06-09T08:49:48.841Z",
          "host" => "elk_node2"
}

标准输入，在另一台主机上输出

/opt/logstash/bin/logstash -e 'input{ stdin{} } output{ elasticsearch{ hosts => ["172.16.10.76"]} }'

logstash配置文件模式

[root@elk_node1 ~]# vim /etc/logstash/conf.d/logstash.conf
input { stdin{} }
output { elasticsearch {hosts=> ["172.16.10.76:9200"]} }

#执行命令

/opt/logstash/bin/logstash -f /etc/logstash/conf.d/logstash.conf

例2：

[root@elk_node1 ~]# vim /data/file.conf
input {
   file {
        path => "/var/log/messages"
        type => "system"
        start_position => "beginning"
}
}
output {
   elasticsearch {
        hosts => ["172.16.10.76:9200"]
        index => "system-%{+YYYY.MM.dd}"
}
}

例2：
[root@elk_node1 ~]# vim /data/file.conf
input {
file {
path => "/var/log/messages"
type => "system"
start_position => "beginning"
}
}

input {
file {
path => "/var/log/elasticsearch/huanqiu.log"
type => "es-error"
start_position => "beginning"
}
}
output {
if [type] == "system" {
elasticsearch {
hosts => ["172.16.10.76:9200"]
index => "system-%{+YYYY.MM.dd}"
}

三、kibana

环境安装：

node1和node2安装都一样

官网地址：https://www.elastic.co/cn/downloads/past-releases#kibana

[root@elk_node2 tools]# wget https://www.elastic.co/downloads/past-releases/kibana-4-3-1

[root@elk_node2 tools]# ls
kibana-4.3.1-linux-x64.tar.gz  mongodb-linux-x86_64-3.6.12.tgz
[root@elk_node2 tools]# tar xf kibana-4.3.1-linux-x64.tar.gz 
[root@elk_node2 tools]# mv kibana-4.3.1-linux-x64 /usr/local/
[root@elk_node2 tools]# ln -s /usr/local/kibana-4.3.1-linux-x64/ /usr/local/kibana
[root@elk_node2 tools]# cd /usr/local/kibana
[root@elk_node2 kibana]# ls
bin     installedPlugins  node          optimize      README.txt  webpackShims
config  LICENSE.txt       node_modules  package.json  src
[root@elk_node2 kibana]# cp config/kibana.yml config/kibana.yml.bak

#修改kibana.yml配置

[root@elk_node2 kibana]# grep '^[a-z]' config/kibana.yml
server.port: 5601
server.host: "0.0.0.0"
elasticsearch.url: "http://172.16.10.76:9200"           #那个节点的IP都行
kibana.index: ".kibana"

##启动服务

[root@elk_node2 ~]# /usr/local/kibana/bin/kibana 
[root@elk_node2 ~]# screen -ls          #屏风模式
There is a screen on:
        5480.pts-1.elk_node2    (Detached)
1 Socket in /var/run/screen/S-root.

[root@elk_node2 ~]# screen -r 5480
  log   [19:21:29.954] [info][status][plugin:markdown_vis] Status changed from uninitialized to green - Ready

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