ELK之ElasticSearch 6.X安全认证Search

ElasticSearch单节点安装Search Guard插件

版本介绍：
  ElasticSearch：6.6.2
  Logstash：6.6.2
  Kibana：6.6.2
  Search Guard：6.6.2-24.2

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1. Search Guard（安全认证）插件安装

切换到ElasticSearch安装目录，通过使用elasticsearch plugin命令安装Search Guard插件

./bin/elasticsearch-plugin install -b com.floragunn:search-guard-6:<version>

<version>参数参考: https://github.com/floragunncom/search-guard/wiki

例：./bin/elasticsearch-plugin install -b com.floragunn:search-guard-6:6.6.2-24.2

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2. 基于在线方式生成TLS证（官方提供多中方式生成）
      在线生成地址：https://search-guard.com/tls-certificate-generator/
   image.png
   服务器hosts配置
   image.png

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3. 配置证书
   证书文件会发送到邮箱中，目录结构如下。详细描述参考证书目录下README.txt

search-guard-certificates-<UUID>.tar.gz
│
└─── client-certificates
│        Contains two client certificates named 'admin' and 'demouser'
│        The 'admin' certificate can be used with sgadmin and the REST API.
│        The CN of this certificate is 'sgadmin'. The demouser certificate can be used
│        for HTTPS client authentication. The CN of this certificate is 'demouser'
└─── node-certificates
│        Contains the certificates in jks, p12 and pem format to be used
│        on your Elasticsearch nodes. You will find certificates for all
│        hostnames you specified when submitting the form.
└─── root-ca
│        Contains the root CA certificate and private key in PEM format.
└─── config
│        Same as above, but for the signing CA
└─── truststore.jks
│        The truststore containing the certificate chain
│        of the root and signing CA, and the root certificate and private key in PEM format.
│        Can be used on all nodes.
└─── root-ca.pem
│        The root CA in PEM format.
│        Can be used on all nodes.
└─── chain-ca.pem
│        The certificate chain containg the root and signing CA in PEM format.

参考README.txt 复制证书及修改ES_HOME/config/elasticsearch.yml配置，配置如下：

/**
  复制证书
      node-certificates：证书目录
      ES_HOME：elasticsearch安装目录
      SG_HOME：ES_HOME/plugins/search-guard-6(插件安装目录)
**/
cp node-certificates/CN=[hostname].crtfull.pem ES_HOME/config/
cp node-certificates/CN=[hostname].key.pem ES_HOME/config/
cp node-certificates/chain-ca.pem ES_HOME/config/
cp node-certificates/truststore.jks SG_HOME/tools/
cp node-certificates/client-certificates/CN=sgadmin-keystore.jks SG_HOME/tools/

修改es配置文件

xpack.security.enabled: false
searchguard.ssl.transport.pemcert_filepath: CN=node-01.crtfull.pem
searchguard.ssl.transport.pemkey_filepath: CN=node-01.key.pem
searchguard.ssl.transport.pemkey_password: 密码查看看README.txt
searchguard.ssl.transport.pemtrustedcas_filepath: chain-ca.pem
searchguard.ssl.transport.enforce_hostname_verification: false
searchguard.ssl.http.enabled: false
searchguard.ssl.http.pemcert_filepath: CN=node-01.crtfull.pem
searchguard.ssl.http.pemkey_filepath: CN=node-01.key.pem
searchguard.ssl.http.pemkey_password: 密码查看看README.txt
searchguard.ssl.http.pemtrustedcas_filepath: chain-ca.pem

searchguard.authcz.admin_dn:
  - CN=sgadmin
#  - CN=demouser

至此配置告一段落，切换用户启动es,执行以下命令,注意密码查看README.txt

cd ES_HOME/plugins/search-guard-<version>/tools
chmod 755 ./sgadmin.sh
./sgadmin.sh -ts truststore.jks -tspass 286a7b7a8970af4e8467 -ks CN=sgadmin-keystore.jks -kspass 449e1fcd3cba8bb7d491 -nhnv -icl -cd ../sgconfig/

命令输出如下

image.png

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4. 见证奇迹时刻！！！
   打开浏览器输入http://IP:9200/_searchguard/authinfo，成功弹出登录提示框！输入admin：admin登录成功

image.png

5. 权限配置
       创建一个用户:
        --用户名：colin
        --密码：colin，
        --权限：kibana服务权限、只有索引【colin】crud权限，没有logstash权限）

内部数据库目录结构（ES_HOME/plugins/search-guard-<version>/sgconfig/）
  --sg_internal_users.yml     用户信息
  --sg_roles.yml              权限设置
  --sg_roles_mapping.yml      映射权限和用户关系

#创建用户
vim sg_internal_users.yml  #添加用户信息
#password is: colin
colin:
  readonly: true
  hash: $2y$12$8YYO/iYi1k31G5avwHonfOGfv5F/NTIMzPxtziVBg8FIf3q979iiO
  roles:
    - sg_role_colin
    - kibanauser

#添加权限
vim sg_roles.yml  #添加权限
sg_role_colin:
  cluster:
    - UNLIMITED
  indices:
    'colin':
      '*':
        - INDICES_ALL
#      _dls_: '<dls query>'
#      _fls_:
#        - '<field>'
#        - '<field>'

#使配置立即生效
cd ES_HOME/plugins/search-guard-<version>/tools
./sgadmin.sh -ts truststore.jks -tspass 286a7b7a8970af4e8467 -ks CN=sgadmin-keystore.jks -kspass 449e1fcd3cba8bb7d491 -nhnv -icl -cd ../sgconfig/

权限配置完成通过kibana查看效果，如下

• 查询colin索引，结果正常

  
  image.png

• 查询wl_travel索引，提示无权操作

  
  image.png

下一篇介绍SpringBoot2.X连接ElasticSearch

结语：有很多地方还没弄明白，稀里糊涂配置完！反正是能用了，对不对就不知道。