[2017-07-18]ELK安装笔记

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ELK

1. ElasticSearch
2. LogStash
3. Kibana

Server:CentOS 7

采用RPM导入官方源方式进行安装

rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch

在/etc/yum.repo.d/建立文件elastic.repo,内容如下

[elastic-5.x]
name=Elasticsearch repository for 5.x packages
baseurl=https://artifacts.elastic.co/packages/5.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md

1. ElasticSearch

执行sudo yum install elasticsearch

ElasticSearch默认data目录为/var/lib/elasticsearch。
迁移索引文件步骤示例(从默认路径迁移到/data)

#停止es服务
...
cp -r /var/lib/elasticsearch/ /data/elasticsearch/
chown -R elasticsearch:elasticsearch /data/elasticsearch/
mv /var/lib/elasticsearch/nodes /var/lib/elasticsearch/tmp_nodes
...
#启用es服务

• ElasticSearch 配置堆内存大小
• ElasticSearch 禁用Swapping

2. LogStash

执行sudo yum install logstash

如果执行systemctl list-unit-files|grep logstash未找到logstash.service,
则在/etc/systemd/system目录下新建logstash.service,内容如下

[Unit]
Description=logstash

[Service]
Type=simple
User=logstash
Group=logstash
# Load env vars from /etc/default/ and /etc/sysconfig/ if they exist.
# Prefixing the path with '-' makes it try to load, but if the file doesn't
# exist, it continues onward.
EnvironmentFile=-/etc/default/logstash
EnvironmentFile=-/etc/sysconfig/logstash
ExecStart=/usr/share/logstash/bin/logstash "--path.settings" "/etc/logstash"
Restart=always
WorkingDirectory=/
Nice=19
LimitNOFILE=16384

[Install]
WantedBy=multi-user.target

Logstash 配置持久化缓冲队列

3. Kibana

执行sudo yum install kibana

配置端口和Host,在/etc/kibana/kibana.yml中启用

server.port: 5601
server.host: "your_host_or_ip"

4. Filebeat

执行sudo yum install filebeat

5. X-Pack（Kibana开启认证机制）

• （必选）执行sudo /usr/share/elasticsearch/bin/elasticsearch-plugin install x-pack
• （必选）执行sudo /usr/share/kibana/bin/kibana-plugin install x-pack
• （可选）执行sudo /usr/share/logstash/bin/logstash-plugin install x-pack

启用x-pack后，需要到各组件配置文件中修改账号密码。默认账号密码为:

• elastic : changeme
• kibana : changeme
• logstash_system: changeme

其中内建账号elastic的权限最高

[personball@centos-linux ~]$ curl -XGET http://elastic:changeme@localhost:9200/_xpack/security/user
{
    "elastic": {
        "username": "elastic",
        "roles": ["superuser"],
        "full_name": null,
        "email": null,
        "metadata": {
            "_reserved": true
        },
        "enabled": true
    },
    "kibana": {
        "username": "kibana",
        "roles": ["kibana_system"],
        "full_name": null,
        "email": null,
        "metadata": {
            "_reserved": true
        },
        "enabled": true
    },
    "logstash_system": {
        "username": "logstash_system",
        "roles": ["logstash_system"],
        "full_name": null,
        "email": null,
        "metadata": {
            "_reserved": true
        },
        "enabled": true
    }
}
[personball@centos-linux ~]$

访问elasticsearch携带账号密码示例

curl -XGET http://elastic:changeme@localhost:9200/

/etc/kibana/kibana.yml配置更新，设置好elasticsearch的访问密码

server.port: 5601
server.host: "10.211.55.5"
elasticsearch.url: "http://localhost:9200"
elasticsearch.username: "elastic"
elasticsearch.password: "changeme"

/etc/logstash/conf.d/各配置更新，设置好output访问elasticsearch的访问密码

elasticsearch {
    hosts => ["localhost:9200"]
    user => "elastic"
    password => "changeme"
}

6. Metricbeat 系统级监控

sudo yum install metricbeat

导入Dashboard /usr/share/metricbeat/scripts/import_dashboards -es http://elastic:changeme@localhost:9200/
（根据导入的查询和视图，添加自己的过滤器，可以较快建立可用的Dashboard）

Metricbeate配置

win2008 无法执行ps脚本安装Metricbeat的问题

以管理员身份打开cmd，执行sc安装服务，命令如下

sc create metricbeat displayName= metricbeat binPath= "C:\metricbeat-5.5.0-windows-x86_64\metricbeat.exe -c C:\metricbeat-5.5.0-windows-x86_64\metricbeat.yml -path.home C:\metricbeat-5.5.0-windows-x86_64 -path.data C:\ProgramData\metricbeat" start= auto