[jira] [Created] (AMBARI-8447) Update ConfigurationResourceProvider to handle Kerberos Administrative Credentials as a special case

["Robert Levas (JIRA)" <ji...@apache.org>]

Robert Levas created AMBARI-8447:
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             Summary: Update ConfigurationResourceProvider to handle Kerberos Administrative Credentials as a special case 
                 Key: AMBARI-8447
                 URL: https://issues.apache.org/jira/browse/AMBARI-8447
             Project: Ambari
          Issue Type: Improvement
          Components: ambari-server
    Affects Versions: 2.0.0
            Reporter: Robert Levas
            Assignee: Robert Levas
             Fix For: 2.0.0


Certain configuration settings need to handled in special-case scenarios. For example short-lived settings to be stored per request or session scope.  Or secure data the must not be stored in the Ambari database.

An example of this type of data is the administrative credentials used to manage a KDC server.   This _configuration_ data is short lived (per session) and sensitive. Therefore, it must be handled as a special case.  

To determine that a configuration request contains this data, the {{type}} of the configuration is to be used.  For this specific case, a configuration {{type}} of *_kerberos_admin_identity_* will trigger the special case to secure and store the administrative credentials in a file.  Ideally if the _session_ data was available (see AMBARI-8426) a session-based encryption key would be created and stored in session. That key would then be used to encrypt the data from this request. The encrypted data and key would then be retrieved from the _session_, decrypted, and used as needed. 







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