elasticsearch7.x 开启安全认证xpack，以和kibana、logstash、filebeat组件连接开启安全认证的es；

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一、 elasticsearch7.x 开启安全认xpack

1.生成认证文件

在es集群中任意一台节点生成即可
1.1 生成ca证书

[root@elk01 ~]# /hqtbj/hqtwww/elasticsearch_workspace/bin/elasticsearch-certutil ca
...
#直接回车即可；
Please enter the desired output file [elastic-stack-ca.p12]: 
#这里直接回车，不要设置密码，否则会报错！！
Enter password for elastic-stack-ca.p12 : 

设置完成后，会在elasticsearch的家目录下看到新生成的证书elastic-stack-ca.p12

1.2 生成p12密钥
使用上面生成的ca证书"elastic-stack-ca.p12"生成p12密钥

[root@elk01 ~]# /hqtbj/hqtwww/elasticsearch_workspace/bin/elasticsearch-certutil cert --ca /hqtbj/hqtwww/elasticsearch_workspace/elastic-stack-ca.p12 
...
#下面三项直接回车即可
Enter password for CA (/hqtbj/hqtwww/elasticsearch_workspace/elastic-stack-ca.p12) : 
Please enter the desired output file [elastic-certificates.p12]: 
#这里直接回车，不要设置密码，否则es会启动不了
Enter password for elastic-certificates.p12 : 

Certificates written to /hqtbj/hqtwww/elasticsearch_workspace/elastic-certificates.p12
...

设置完成后，会在elasticsearch的家目录下看到新生成的密钥elastic-certificates.p12

1.3 拷贝p12密钥到其它es节点
首先在config/目录下创建个certs目录，然后将p12证书移动到certs目录下，方便后面在配置文件里引用

[root@elk01 ~]# cd /hqtbj/hqtwww/elasticsearch_workspace/config/
[root@elk01 config]# mkdir certs/
[root@elk01 config]# mv /hqtbj/hqtwww/elasticsearch_workspace/elastic-certificates.p12 certs/

[root@elk01 config]# chmod -R  755 certs
[root@elk01 config]# ll certs/
total 4
-rwxr-xr-x 1 root root 3443 Jan 12 10:01 elastic-certificates.p12

将p12证书移动到certs目录下后直接将certs目录拷贝到其他es节点

[root@elk01 config]# scp -pr certs root@10.8.0.6:/hqtbj/hqtwww/elasticsearch_workspace/config/
[root@elk01 config]# scp -pr certs root@10.8.0.9:/hqtbj/hqtwww/elasticsearch_workspace/config/

2.修改elasticsearch配置文件开启xpack

所有es节点都需要配置

[root@elk01 ~]# vim /hqtbj/hqtwww/elasticsearch_workspace/config/elasticsearch.yml
xpack.security.enabled: true

xpack.security.transport.ssl.enabled: true

xpack.security.transport.ssl.verification_mode: certificate
#下面是p12密钥文件的存储位置，建议使用绝对路径，当然相对路径也是可以的："certs/elastic-certificates.p12"
xpack.security.transport.ssl.keystore.path: /hqtbj/hqtwww/elasticsearch_workspace/config/certs/elastic-certificates.p12

xpack.security.transport.ssl.truststore.path: /hqtbj/hqtwww/elasticsearch_workspace/config/certs/elastic-certificates.p12

3.重启各个es节点并设置用户名密码

3.1 重启es节点

[root@elk01 ~]# systemctl restart elasticsearch.service 

3.2 设置用户名密码
在es集群中任意一台节点执行即可
需要在集群状态正常的情况下设置，否则会报错

手动设置各个用户的密码：

[root@elk01 ~]# /hqtbj/hqtwww/elasticsearch_workspace/bin/elasticsearch-setup-passwords interactive
Initiating the setup of passwords for reserved users elastic,apm_system,kibana,kibana_system,logstash_system,beats_system,remote_monitoring_user.
You will be prompted to enter passwords as the process progresses.
Please confirm that you would like to continue [y/N]y
#手动输入每个用户的密码，每个用户需要输入两遍！！！
Enter password for [elastic]: 
Reenter password for [elastic]: 
Enter password for [apm_system]: 
Reenter password for [apm_system]: 
Enter password for [kibana_system]: 
Reenter password for [kibana_system]: 
Enter password for [logstash_system]: 
Reenter password for [logstash_system]: 
Enter password for [beats_system]: 
Reenter password for [beats_system]: 
Enter password for [remote_monitoring_user]: 
Reenter password for [remote_monitoring_user]: 
Changed password for user [apm_system]
Changed password for user [kibana_system]
Changed password for user [kibana]
Changed password for user [logstash_system]
Changed password for user [beats_system]
Changed password for user [remote_monitoring_user]
Changed password for user [elastic]

自动随机生成每个用户的密码命令如下：

[root@elk01 ~]# /hqtbj/hqtwww/elasticsearch_workspace/bin/elasticsearch-setup-passwords auto

4.访问es验证

此时es的安全认证已经打开了，我们再去访问es的时候是需要刚刚设置的用户名密码的这里使用elastic账号登录

二、配置kibana使用es安全认证

1.kibana配置连接ES的安全认证

由于es配置了安全认证，那么kafka是需要去连接es集群的，所以就需要给kibana添加登录es的用户名密码才可以正常访问

#编辑kibana的主配置文件"kibana.yml"
[root@localhost ~]# vim /hqtbj/hqtwww/kibana_workspace/config/kibana.yml
...
#ES的连接地址
elasticsearch.hosts: ["http://10.8.0.2:9200","http://10.8.0.6:9200","http://10.8.0.9:9200"]
#连接ES的用户名
elasticsearch.username: "kibana_system"
#连接es的密码
elasticsearch.password: "123456"
...

这里的用户名密码可以填上一步设置用户名密码里的"kibana_system"用户；

2.重启kibana并访问验证

[root@localhost ~]# systemctl restart kibana.service 

输入kibana用户登录

发现可以登录，但是显示没有权限访问

此时需要使用"elastic"用户登录即可成功；
kibana界⾯⿏标依次点击如下:
(1)菜单栏;
(2)StackManagement；
(3)安全；
(4)用户；
即可看到我们上面配置过密码的用户
这些用户都是默认的，无法修改！
这些用户都是默认的，无法修改！可以自己新建用户和角色来满足自己的需求

3.在kibana里创建只读角色与只读账号

只读账号--例如给开发使用

3.1 创建角色；
kibana界⾯⿏标依次点击如下:
(1)菜单栏;
(2)StackManagement；
(3)安全；
(4)角色；
(5)创建角色；

需要给只读角色创建kibana权限，否则拥有此角色的用户登录上来会没有权限

3.2创建用户
kibana界⾯⿏标依次点击如下:
(1)菜单栏;
(2)StackManagement；
(3)安全；
(4)用户；
(5)创建用户；



3.3只读账号登录效果如下：
可以查看日志

因为只是对索引的只读权限，不能对集群进行任何操作，包括通过Restful API的方式也不可以，会报403的错误 例如：

#查看所有的索引信息
[root@kafka01 conf.d]# curl --user test_read:123456 'http://10.8.0.2:9200/_cat/indices?v' -k
{"error":{"root_cause":[{"type":"security_exception","reason":"action [indices:monitor/stats] is unauthorized for user [test_read] with roles [developers], this action is granted by the index privileges [monitor,manage,all]","suppressed":[{"type":"security_exception","reason":"action [cluster:monitor/state] is unauthorized for user [test_read] with roles [developers], this action is granted by the cluster privileges [read_ccr,transport_client,manage_ccr,monitor,manage,all]"},{"type":"security_exception","reason":"action [cluster:monitor/health] is unauthorized for user [test_read] with roles [developers], this action is granted by the cluster privileges [monitor,manage,all]"}]}],"type":"security_exception","reason":"action [indices:monitor/stats] is unauthorized for user [test_read] with roles [developers], this action is granted by the index privileges [monitor,manage,all]","suppressed":[{"type":"security_exception","reason":"action [cluster:monitor/state] is unauthorized for user [test_read] with roles [developers], this action is granted by the cluster privileges [read_ccr,transport_client,manage_ccr,monitor,manage,all]"},{"type":"security_exception","reason":"action [cluster:monitor/health] is unauthorized for user [test_read] with roles [developers], this action is granted by the cluster privileges [monitor,manage,all]"}]},"status":403}

#查看es节点信息也会报错：

三、配置logstash使用es安全认证

虽然我们在开启es认证时设置过"logstash_system"用户，但是这个用户并不能像kibana那样直接使用，如果直接使用"logstash_system"用户的话，在将数据写入索引的时候，会报403的错误，如下：

[2023-01-13T13:32:59,126][ERROR][logstash.outputs.elasticsearch][main][53f2ca2de58f24f94b83b4a2ddfacfaaa953df1f59b7c9426f204cd3cda13a80] Encountered a retryable error (will retry with exponential backoff) {:code=>403, :url=>"http://10.8.0.6:9200/_bulk", :content_length=>3145}

这是因为自带的"logstash_system"用户使用的"logstash_system"角色没有写入的权限，所以需要重新建个有写入权限的角色和用户

1.创建logstash用户

1.1 首先创建个角色，名为"logstash_write"，集群权限为：monitor；

1.2 此角色对索引的操作权限为：write、delete、create_index monitor；

1.3 新建一个用户拥有此权限

2.修改logstash输出到es的配置

因为es开启了认证，所以需要在logstash output到es时添加上刚创建用户和密码

[root@kafka02 ~]# vim /hqtbj/hqtwww/logstash_workspace/conf.d/gotone-kafka-to-es.conf
...
 output {
  elasticsearch {
    #es集群地址
    hosts => ["10.8.0.2:9200","10.8.0.6:9200","10.8.0.9:9200"]
    #写入的索引名称
    index => "hqt-gotone-pro-%{ YYYY.MM.dd}"
    ##具有对索引写权限的用户
    user => "logstash_to_es" 
    ##用户的密码
    password => "123456" 
  }
}

修改完之后需要重启logstash；

四、配置filebeat使用es安全认证

fielbeat跟logstash的步骤基本是相同的，自带的“beats_system”用户一样不能用会报403错误，如下：

2023-01-13T13:52:19.569 0800	ERROR	[publisher_pipeline_output]	pipeline/output.go:154	Failed to connect to backoff(elasticsearch(http://10.8.0.9:9200)): Connection marked as failed because the onConnect callback failed: error loading template: failed to load template: couldn't load template: 403 Forbidden: {"error":{"root_cause":[{"type":"security_exception","reason":"action [indices:admin/index_template/put] is unauthorized for user [beats_system] with roles [beats_system], this action is granted by the cluster privileges [manage_index_templates,manage,all]"}],"type":"security_exception","reason":"action [indices:admin/index_template/put] is unauthorized for user [beats_system] with roles [beats_system], this action is granted by the cluster privileges [manage_index_templates,manage,all]"},"status":403}. Response body: {"error":{"root_cause":[{"type":"security_exception","reason":"action [indices:admin/index_template/put] is unauthorized for user [beats_system] with roles [beats_system], this action is granted by the cluster privileges [manage_index_templates,manage,all]"}],"type":"security_exception","reason":"action [indices:admin/index_template/put] is unauthorized for user [beats_system] with roles [beats_system], this action is granted by the cluster privileges [manage_index_templates,manage,all]"},"status":403}

1.创建filebeat用户

1.1 首先创建个角色，名为"beats_write"，集群权限为：monitor，manage_index_templates；

1.2 此角色对索引的操作权限为：write、delete、create_index monitor；



1.3 新建一个用户拥有此权限

2.修改filebeat输出到es的配置

output.elasticsearch:
  enabled: true
  hosts: ["http://10.8.0.2:9200","http://10.8.0.6:9200","http://10.8.0.9:9200"]
  index: "oldboyedu-linux-elk-%{ yyyy.MM.dd}"
  #用户名
  username: "beats_to_es"
  #密码
  password: "123456"

##创建索引模版
#禁用索引生命周期管理，如果开启的话则会忽略我们自定义的索引;
setup.ilm.enabled: false
#设置索引模板的名称
setup.template.name: "oldboyedu-linux"
#设置索引模板的匹配模式
setup.template.pattern: "oldboyedu-linux-*"

修改完之后需要重启filebeat；

五、kibana配置匿名用户自动登陆(不需要输入用户名密码)

1.创建角色

然后进行下面的kibana授权，只授权查看日志和仪表盘的权限，其他的一律不给；


然后保存角色即可；

2.创建用户

只需要创建个用户然后使用刚才创建的匿名"anonymous"角色就可以

3.kibana配置

在配置文件最后面加上如下配置再重启kibana即可

[root@iZbp1cu4i3w7zez6r0n14hZ ~]# vim /hqtbj/hqtwww/kibana_workspace/config/kibana.yml
xpack.security.authc.providers:
  #开启elasticsearch登陆，开启此配置可以在登陆时候进行选择使用elastic管理员或有其他权限的账号登陆，否则只能使用匿名用户；
  basic.basic1:
    order: 0
  #开启匿名用户自行登陆
  anonymous.anonymous1:
    order: 1
    credentials:
      #这里的用户名和密码是我们创建的
      username: "common"
      password: "123xxxx"
      
[root@iZbp1cu4i3w7zez6r0n14hZ ~]# systemctl restart kibana.service 

kibana完整配置如下

4.点击匿名用户自行登录测试

发现可以直接点进来，用户对应的也是匿名用户 然后只有相应的查看日志和仪表盘的权限即可；

ps:


同时也可以使用elastic或其他用户登录就ok了；

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