1.在Kubernetes集群上安装Altinity operator，并在spec中添加以下内容，并进行相应修改：

config:
  ldap:
    enabled: true
    url: "ldap://ldap.mydomain.local:389"
    baseDn: "OU=Users,DC=mydomain,DC=local"
    bindDn: "CN=Operator,OU=ServiceAccounts,DC=mydomain,DC=local"
    bindPassword:
      valueFrom:
        secretKeyRef:
          name: operator-secrets
          key: ldap-bind-password
    userSearchFilter: "(sAMAccountName={0})"

2. 创建LDAP secret命令：

kubectl create secret generic operator-secrets --from-literal="ldap-bind-password="

3. 在ClickHouse集群中创建LDAP用户，示例代码如下：

CREATE ROLE "ldap_readonly" NOT EXTERNAL TO LDAP 
SETTINGS 
(
  ldap_server='ldap://ldap.mydomain.local:389',
  ldap_search_base='OU=Users,DC=mydomain,DC=local',
  ldap_bind_dn='CN=ClickHouse-Operator,OU=ServiceAccounts,DC=mydomain,DC=local',
  ldap_bind_password='',
  ldap_user_filter='(sAMAccountName={0})',
  ldap_group_filter='',
  ldap_group_attribute='memberOf',
  ldap_group_is_dn=false,
  ldap_credentials_query='',
  ldap_use_tls=false,
  ldap_tls_options='no_cert_check=1',
  ldap_timeout=30
)

4. 在ClickHouse ACL中授权LDAP用户，示例代码如下：

GRANT SELECT ON *.*
TO user 'ldap_readonly';