ELK日志系统：Elasticsearch+Logstash+Kibana+Filebeat搭建教程

ELK日志系统：Elasticsearch + Logstash + Kibana 搭建教程

系统架构

安装配置JDK环境

JDK安装（不能安装JRE）
JDK下载地址：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
下载包：jdk-8u131-linux-x64.rpm
yum localinstall jdk-8u131-linux-x64.rpm

mvn 安装

cd /usr/local
wget http://www-eu.apache.org/dist/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz
tar xzf apache-maven-3.3.9-bin.tar.gz
mv apache-maven-3.3.9 maven
vi /etc/profile.d/maven.sh
export M2_HOME=/usr/local/maven
export PATH=${M2_HOME}/bin:${PATH}
source /etc/profile.d/maven.sh
mvn -version

安装ElasticSearch

yum install epel-release
yum install npm nodejs
# centos7 若安装nodejs失败，请执行如下命令再重试
rpm -ivh https://kojipkgs.fedoraproject.org//packages/http-parser/2.7.1/3.el7/x86_64/http-parser-2.7.1-3.el7.x86_64.rpm
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.3.rpm
yum localinstall elasticsearch-6.2.3.rpm
# 修改network.host: 0.0.0.0
vim /etc/elasticsearch/elasticsearch.yml
systemctl start elasticsearch
systemctl enable elasticsearch
systemctl status elasticsearch
# elasticsearch工具目录
/usr/share/elasticsearch/bin/
# 系统要求
vim /etc/security/limits.conf
* soft nofile 65535
* hard nofile 65535
vim /etc/sysctl.conf
vm.max_map_count=262144
# 临时生效命令
sysctl -w vm.max_map_count=262144

安装elasticsearch-head

# 增加新的参数，这样head插件可以访问es
vim /etc/elasticsearch/elasticsearch.yml
http.cors.enabled: true
http.cors.allow-origin: "*"
cd /usr/share/elasticsearch
git clone git://github.com/mobz/elasticsearch-head.git
cd elasticsearch-head
npm install
npm run start
# elasticsearch-head访问地址
http://localhost:9100/
# 若head插件无法连接到es，编辑app.js查找9200修改参数localhost为本机ip
vim _site/app.js

安装filebeat

wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-6.2.3-x86_64.rpm
yum localinstall filebeat-6.2.3-x86_64.rpm
vim /etc/filebeat/filebeat.yml
# 修改paths配置路径
# 将enabled设置为true！！
# 将Filebeat和Logstash连接起来
# 将output.elasticsearch注释掉#
# 打开Logstash的注释
# 修改完成后的配置如下：
grep -vE "^$|#|;" /etc/filebeat/filebeat.yml
filebeat.prospectors:
- type: log
  enabled: true
  paths:
    - /var/log/*.log
  exclude_lines: ['^DBG', '^OK','^$'] #排查DBG、OK和空行
  include_lines: ['^ERR', '^WARN']
  exclude_files: ['.gz$', '*error.log']
filebeat.config.modules:
  path: ${path.config}/modules.d/*.yml
  reload.enabled: false
setup.template.settings:
  index.number_of_shards: 3
setup.kibana:
output.logstash:
  hosts: ["localhost:5044"]
# 启动filebeat  
systemctl start filebeat
systemctl enable filebeat
systemctl status filebeat

安装logstash

wget https://artifacts.elastic.co/downloads/logstash/logstash-6.2.3.rpm
yum localinstall logstash-6.2.3.rpm
vim /etc/logstash/logstash.yml
# 修改path.config配置
path.config: /etc/logstash/conf.d
vim /etc/logstash/conf.d/logstash.conf
input {
    beats {
        port => 5044
    }
}

filter {
    grok {
        match => {
            "request" => "\s+(?<api_path>.+?)(\?.*)?\s+"
        }
    }
    grok {
        match => {
            "agent" => "(?<browser>Maxthon|QQBrowser|Chrome|Safari|Firefox|Opera|MSIE?)(/[0-9.]+)?"
        }
    }
    grok {
        match => {
            "agent" => "(?<os>Android|SymbianOS|Macintosh|iPad|iPhone|iPod|Linux|Windows?)"
        }
    }
    mutate {
        split => [ "upstreamtime", "," ]
    }
}
 
output {
    elasticsearch {
        hosts => ["192.168.1.216:9200"]
        index => "logstash-%{+YYYY.MM.dd}_log"
    }
    stdout { codec => rubydebug }
}
# 给logstash做软连接
ln -s /usr/share/logstash/bin/logstash /usr/bin/logstash
systemctl start logstash
systemctl enable logstash
systemctl status logstash
cd /usr/share/logstash/bin
# 解析配置文件并报告任何出现错误的错误
logstash -f logstash.conf --config.test_and_exit
# 窗口启动 (以下启动方式不推荐，服务启动即可)
logstash -f /etc/logstash/conf.d/logstash.conf
# 后台运行
nohup logstash -f /etc/logstash/conf.d &
nohup logstash -f /etc/logstash/conf.d > logstash.log 2>&1 &

安装kibana

wget https://artifacts.elastic.co/downloads/kibana/kibana-6.2.3-x86_64.rpm
yum localinstall kibana-6.2.3-x86_64.rpm
vim /etc/kibana/kibana.yml
# 修改elasticsearch.url参数
server.host: "0.0.0.0"
elasticsearch.url: "http://localhost:9200"
systemctl start kibana
systemctl enable kibana
systemctl status kibana

安装nginx

yum install nginx httpd-tools
htpasswd -c /etc/nginx/htpasswd.users XXX

vi /etc/nginx/conf.d/kibana.conf
server {
    listen 80;
    server_name 192.168.1.216;
    auth_basic "Restricted Access";
    auth_basic_user_file /etc/nginx/htpasswd.users;
    location / {
        proxy_pass http://localhost:5601;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade; 
    }
}

systemctl enable nginx
systemctl start nginx

验证

echo "hello world" >/var/opt/log/a.log
curl http://localhost:9200/_search?pretty 查看输出

删除索引

curl -XDELETE http://localhost:9200/twitter
curl -XDELETE http://localhost:9200/_all

列出所有索引

curl -u elastic:changeme 'http://localhost:9200/_cat/indices?v'

查看节点个数

curl http://localhost:9200/_cluster/health?pretty

已知bug

Chrome浏览器插件可能导致kibana显示存在bug，可通过禁用浏览器插件浏览