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部署ELK

• 创建部署目录

mkdir -p /data/apps/elk/{elasticsearch,kibana,logstash}  
mkdir -p /data/apps/elk/elasticsearch/{data,plugins,logs,cert}  
chmod 777 elasticsearch kibana logstash -R  

• 创建logstash配置文件

cd  /data/apps/elk/  
touch  /data/apps/elk/logstash/logstash.conf  

• 配置logstash.conf,如果只用filebeat采集，logstash可以不用部署

input {  tcp {mode => "server"host => "0.0.0.0"port => 4560}
}output {  elasticsearch {hosts => ["elasticsearch:9200"]index => "logstash-%{+YYYY.MM.dd}"}stdout { codec => rubydebug }
}

• 创建和配置elasticsearch.yml

touch /data/apps/elk/elasticsearch/config/elasticsearch.yml  

cluster.name: "docker-cluster"  
network.host: 0.0.0.0# 这里等生成好证书再开启配置
#xpack.security.enabled: true
#xpack.security.transport.ssl.enabled: true
#xpack.security.transport.ssl.verification_mode: certificate
#xpack.security.transport.ssl.keystore.path: /usr/share/elasticsearch/config/elastic-certificates.p12
#xpack.security.transport.ssl.truststore.path: /usr/share/elasticsearch/config/elastic-certificates.p12
#xpack.security.transport.ssl.truststore.type: PKCS12
#xpack.security.transport.ssl.keystore.type: PKCS12

• 创建和配置kibana.yml

server.name: kibana  
server.host: "0"  
elasticsearch.hosts: [ "http://elasticsearch:9200" ]  
xpack.monitoring.ui.container.elasticsearch.enabled: true  
# 设置中文
i18n.locale: zh-CN#elasticsearch中用户名和密码，这也里要等ES开启xpack再启用
#elasticsearch.username: "kibana"
#elasticsearch.password: "****************"

• 创建docker-compose.yml文件

touch /data/apps/elk/docker-compose.yml  

• 根据实际情况配置 docker-compose.yml,这是最终版

version: '3.5'  
services:  elasticsearch:image: docker.elastic.co/elasticsearch/elasticsearch:7.6.2container_name: elasticsearchprivileged: trueuser: rootenvironment:#设置集群名称为elasticsearch- cluster.name=elasticsearch #以单一节点模式启动- discovery.type=single-node #设置使用jvm内存大小- ES_JAVA_OPTS=-Xms512m -Xmx512m volumes:- /data/apps/elk/elasticsearch/plugins:/usr/share/elasticsearch/plugins- /data/apps/elk/elasticsearch/data:/usr/share/elasticsearch/data- /data/apps/elk/elasticsearch/logs:/usr/share/elasticsearch/logs- /data/apps/elk/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml#- /data/apps/elk/elasticsearch/cert/elastic-certificates.p12:/usr/share/elasticsearch/config/elastic-certificates.p12ports:- 9200:9200- 9300:9300networks:- elk-networklogstash:image: docker.elastic.co/logstash/logstash:7.6.2container_name: logstashports:- 4560:4560privileged: trueenvironment:- TZ=Asia/Shanghaivolumes:#挂载logstash的配置文件- /data/apps/elk/logstash/logstash.conf:/usr/share/logstash/pipeline/logstash.conf depends_on:- elasticsearch links:#可以用es这个域名访问elasticsearch服务- elasticsearch:es networks:- elk-networkkibana:image: docker.elastic.co/kibana/kibana:7.6.2container_name: kibanaports:- 5601:5601privileged: truelinks:#可以用es这个域名访问elasticsearch服务- elasticsearch:es depends_on:- elasticsearch environment:#设置访问elasticsearch的地址- elasticsearch.hosts=http://elasticsearch:9200volumes:#挂载kibana的配置文件- /data/apps/elk/kibana/kibana.yml:/usr/share/kibana/config/kibana.ymlnetworks:- elk-networknetworks:  elk-network:driver: bridge

• 启动docker-compose

#启动
docker-compose up -d#关闭
docker-compose down#重启某个容器
docker-compose restart logstash  

安装获取elastic-certificates.p12文件

• 进es容器中操作

docker exec -it elasticsearch /bin/bash  

• 执行下面命令，生成新文件 elastic-stack-ca.p12文件，系统会提示生成名称和密码，可直接回车跳过，无需输入

./bin/elasticsearch-certutil ca

• 执行下面命令，elastic-certificates.p12文件（所需文件），系统会提示生成名称和密码，可直接回车跳过，无需输入

./bin/elasticsearch-certutil cert --ca elastic-stack-ca.p12

• 拷贝文件至宿主机,选退出容器，进入宿主机再操作

docker cp es:/usr/share/elasticsearch/elastic-certificates.p12 /data/apps/elk/elasticsearch/cert/  
chmod 755 /data/apps/elk/elasticsearch/cert/elastic-certificates.p12  

ES启用xpack配置

• 修改配置elasticsearch.yml，取消以下注释

xpack.security.enabled: true  
xpack.security.transport.ssl.enabled: true  
xpack.security.transport.ssl.verification_mode: certificate  
xpack.security.transport.ssl.keystore.path: /usr/share/elasticsearch/config/elastic-certificates.p12  
xpack.security.transport.ssl.truststore.path: /usr/share/elasticsearch/config/elastic-certificates.p12  
xpack.security.transport.ssl.truststore.type: PKCS12  
xpack.security.transport.ssl.keystore.type: PKCS12  

• 修改docker-compose.yml配置,取消20行注释

 - /data/apps/elk/elasticsearch/cert/elastic-certificates.p12:/usr/share/elasticsearch/config/elastic-certificates.p12

• 重启es

docker-compose restart elasticsearch  

• 这时可以看到kibana已经无法连接es

elasticsearch 帐号密码设置

• 进入 elasticsearch 容器

docker exec -it elasticsearch /bin/bash  

• 生成密码,自行选择自动生成或者手动设置

#自动生成密码
./bin/elasticsearch-setup-passwords auto
#手动设置密码
./bin/elasticsearch-setup-passwords interactive

• 我这里选择自动生成,生成好的密码注意保存

[root@9e4a89f00a05 elasticsearch]# ./bin/elasticsearch-setup-passwords auto
Initiating the setup of passwords for reserved users elastic,apm_system,kibana,logstash_system,beats_system,remote_monitoring_user.  
The passwords will be randomly generated and printed to the console.  
Please confirm that you would like to continue [y/N]yChanged password for user apm_system  
PASSWORD apm_system = *****此处有明文密码*******Changed password for user kibana  
PASSWORD kibana = *****此处有明文密码*******Changed password for user logstash_system  
PASSWORD logstash_system = *****此处有明文密码*******Changed password for user beats_system  
PASSWORD beats_system = *****此处有明文密码*******Changed password for user remote_monitoring_user  
PASSWORD remote_monitoring_user = *****此处有明文密码*******Changed password for user elastic  
PASSWORD elastic = IGnVa7HrYCzReBFWOCmX  

修改kibana配置，添加ES的账号和密码

• kibana/kibana.yml

#elasticsearch中用户名和密码
elasticsearch.username: "kibana"  
elasticsearch.password: "************"  

• 重启kibana，使用配置生效

docker-compose restart kibana  

kibana

• 使用elastic用户登录kibana

输入http://你的IP:5601/，访问Kibana web界面。点击左侧设置，进入Management界面

• 这里建议使用Nginx做七层反向代理，使用域名http://elk.xxxx.com访问ELK

server {  listen 80;server_name elk.xxxx.com;charset utf-8;location = /favicon.ico { access_log off; log_not_found off; }location / {proxy_pass http://你的IP:5601;proxy_redirect off;proxy_set_header Host $host;proxy_set_header X-Real-IP $remote_addr;proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;}access_log  /data/logs/elk.xxxx.com.access.log main;error_log  /data/logs/elk.xxxx.com.error.log;
}

使用filebeat采集Nginx日志和后台业务日志

• 安装filebeat

curl -L -O https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-7.6.2-x86_64.rpmrpm -vih filebeat-7.6.2-x86_64.rpm  

• 配置filebeat.yml

#logging.level: debug
filebeat.inputs:  - type: logenabled: truepaths:- /data/wwwlogs/*access.logjson.keys_under_root: truejson.add_error_key: trueindex: "nginx-access-%{+yyyy.MM.dd}"# 如果有其他日志要采集，参考以上配置，继续追加即可name: 可以填写你的主机名#开启子配置文件查看，在这个目录里新增子配置文件会自动加载，不需要重启filebeat
filebeat.config.inputs:  enabled: true path: ${path.config}/inputs.d/*.ymlreload.enabled: truereload.period: 10soutput.elasticsearch:  hosts: ["elasticsearch:9200"]protocol: "http"# 开启认证后filebeat也要配置es密码username: "elastic"password: "************"
processors:  
- drop_fields:fields: ["log.offset", "input", "agent.type", "agent.ephemeral_id", "agent.id", "agent.version", "agent.name", "ecs", "host"]close_older: 30m         # 如果文件在某个时间段内没有发生过更新，则关闭监控的文件handle。默认1h  
force_close_files: false # 这个选项关闭一个文件,当文件名称的变化。只在window建议为true  
close_inactive: 1m  
close_timeout: 3h  
clean_inactive: 72h  
ignore_older: 70h  

• 如果需要新增filebeat配置则添加- input_type: log段配置即可

• 启动filebeat

systemctl start filebeat.service  

• 设置开机启动

systemctl enable filebeat.service